@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Inter:wght@300;400;500;600&display=swap');

:root {
  --bg: #faf6f0; /* Cozy Warm Cream */
  --bg2: #f4eee3; /* Soft warm secondary background */
  --card: #ffffff; /* Pure white cards */
  --card-border: #e6dfd3; /* Soft warm clay borders */
  --card-hover: rgba(95, 125, 117, 0.08); /* Sage Green translucent glow */
  --teal: #5f7d75; /* Primary Muted Sage Green */
  --teal-glow: rgba(95, 125, 117, 0.12);
  --lavender: #8e7c68; /* Secondary Warm Taupe/Clay */
  --lavender-glow: rgba(142, 124, 104, 0.12);
  --pink: #d98a72; /* Warm Soft Terracotta */
  --pink-glow: rgba(217, 138, 114, 0.12);
  --orange: #e5ba73; /* Warm Honey Yellow */
  --orange-glow: rgba(229, 186, 115, 0.12);
  --text: #2c3531; /* Deep charcoal with a touch of olive/sage */
  --text-muted: #7d8c83; /* Soft sage-slate gray for muted text */
  --sidebar-w: 280px;
  --radius: 18px; /* Slightly more rounded organic feel */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 4px 12px -2px rgba(142, 124, 104, 0.06), 0 2px 6px -1px rgba(95, 125, 117, 0.04);
  --shadow-lg: 0 12px 24px -4px rgba(142, 124, 104, 0.08), 0 6px 12px -2px rgba(95, 125, 117, 0.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  overflow: hidden;
}

h1, h2, h3, h4, .landing-title, .section-title, .page-header h2, .greeting-card h2, .sidebar-logo h1, .mnemonic-phrase {
  font-family: 'Lora', Georgia, serif !important;
  font-weight: 700 !important;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--card-border); border-radius: 99px; }

/* ── SIDEBAR ── */
#sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-right: 1px solid var(--card-border);
  display: flex;
  flex-direction: column;
  padding: 28px 18px;
  flex-shrink: 0;
  position: fixed;
  left: 0; top: 0; bottom: 0;
  z-index: 1000;
  transition: var(--transition);
}

.mobile-header {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 60px;
  background: var(--card);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  padding: 0 16px;
  align-items: center;
  justify-content: space-between;
  z-index: 900;
}

.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(44, 53, 49, 0.4);
  backdrop-filter: blur(4px);
  z-index: 950;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: 0.3s;
}

.sidebar-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* ── HAMBURGER BUTTON ── */
.hamburger-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
  flex-shrink: 0;
}
.hamburger-btn:hover {
  border-color: var(--teal);
  background: var(--teal-glow);
}
.hamburger-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}
.hamburger-btn.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger-btn.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger-btn.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Sidebar scroll area scrollbars hidden to avoid dual-scrollbar clutter */
#sidebar .scroll-area::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}
#sidebar .scroll-area {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.scroll-area::-webkit-scrollbar { width: 4px; }
.scroll-area::-webkit-scrollbar-thumb { background: var(--card-border); border-radius: 99px; }

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px 24px;
  border-bottom: 1px solid var(--card-border);
  margin-bottom: 24px;
}

.sidebar-logo .logo-icon {
  width: 42px; height: 42px;
  background: var(--teal-glow);
  color: var(--teal);
  border-radius: 14px;
  display: grid; place-items: center;
}

.logo-icon svg.tooth-svg {
  stroke: var(--teal);
  fill: var(--teal-glow);
  transition: var(--transition);
}

.sidebar-logo h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.sidebar-logo span {
  font-size: 0.68rem;
  color: var(--text-muted);
  display: block;
  font-weight: 500;
}

.nav-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  padding: 0 12px;
  margin-bottom: 10px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 14px;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 4px;
  border: 1px solid transparent;
  user-select: none;
}

.nav-item .nav-icon { font-size: 1.1rem; width: 24px; text-align: center; display: flex; align-items: center; justify-content: center; }
.nav-svg { stroke: currentColor; transition: var(--transition); }
.nav-item:hover { background: var(--bg2); color: var(--text); transform: translateX(2px); }
.nav-item.active {
  background: var(--teal-glow);
  color: var(--teal);
  font-weight: 600;
  border-color: rgba(95, 125, 117, 0.2);
}

/* Koas AI Nav Item */
.koas-ai-nav {
  background: linear-gradient(135deg, rgba(95, 125, 117, 0.06), rgba(217, 138, 114, 0.06)) !important;
  border: 1px solid rgba(95, 125, 117, 0.15) !important;
}
.koas-ai-nav:hover {
  background: linear-gradient(135deg, rgba(95, 125, 117, 0.12), rgba(217, 138, 114, 0.12)) !important;
  border-color: rgba(95, 125, 117, 0.35) !important;
  transform: translateX(2px);
}
.koas-ai-nav.active {
  background: linear-gradient(135deg, rgba(95, 125, 117, 0.15), rgba(217, 138, 114, 0.15)) !important;
  border-color: var(--teal) !important;
}
.koas-ai-nav-text {
  background: linear-gradient(90deg, var(--teal), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
}

/* NEW Badge */
.koas-new-badge {
  font-size: 0.5rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background: linear-gradient(90deg, var(--teal), var(--pink));
  color: #fff;
  padding: 2px 7px;
  border-radius: 99px;
  margin-left: auto;
  flex-shrink: 0;
  animation: newBadgePulse 2.5s ease-in-out infinite;
  box-shadow: 0 0 0 0 rgba(95, 125, 117, 0.4);
}
@keyframes newBadgePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(95, 125, 117, 0.4); }
  50% { box-shadow: 0 0 0 5px rgba(95, 125, 117, 0); }
}
@keyframes voicePulse {
  0% { transform: scale(0.85); opacity: 1; box-shadow: 0 0 0 0 rgba(217, 138, 114, 0.7); }
  70% { transform: scale(1.15); opacity: 0.8; box-shadow: 0 0 0 6px rgba(217, 138, 114, 0); }
  100% { transform: scale(0.85); opacity: 0; box-shadow: 0 0 0 0 rgba(217, 138, 114, 0); }
}

.sidebar-footer {
  margin-top: auto;
  padding: 16px 12px;
  border-top: 1px solid var(--card-border);
}

.user-badge {
  display: flex; align-items: center; gap: 10px;
}

.user-avatar {
  width: 36px; height: 36px;
  background: var(--lavender-glow);
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 16px;
}

.user-info p { font-size: 0.82rem; font-weight: 600; }
.user-info span { font-size: 0.7rem; color: var(--text-muted); }

/* ── MAIN ── */
#main {
  margin-left: var(--sidebar-w);
  flex: 1;
  height: 100vh;
  overflow-y: auto;
  padding: 32px;
  position: relative;
  z-index: 1;
  transition: var(--transition);
}

/* ── SECTIONS ── */
.section { display: none; }
.section.active {
  display: block;
  animation: fadeUp 0.45s cubic-bezier(0.4, 0, 0.2, 1) both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── PAGE HEADER ── */
.page-header { margin-bottom: 28px; }
.page-header h2 {
  font-size: 1.8rem; font-weight: 700;
  color: var(--text);
}
.page-header p { color: var(--text-muted); font-size: 0.88rem; margin-top: 4px; }

/* ── CARDS ── */
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--teal-glow);
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }

/* ── STAT CARDS ── */
.stat-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex; align-items: center; gap: 16px;
  box-shadow: var(--shadow);
}
.stat-icon {
  width: 48px; height: 48px; border-radius: 14px;
  display: grid; place-items: center; font-size: 1.4rem;
  flex-shrink: 0;
}
.stat-icon.teal { background: var(--teal-glow); color: var(--teal); }
.stat-icon.lavender { background: var(--lavender-glow); color: var(--lavender); }
.stat-icon.pink { background: var(--pink-glow); color: var(--pink); }
.stat-icon.orange { background: var(--orange-glow); color: var(--orange); }
.stat-num { font-size: 1.6rem; font-weight: 700; }
.stat-label { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }

/* ── BUTTONS ── */
.btn {
  padding: 10px 20px; border-radius: 12px; border: none;
  cursor: pointer; font-size: 0.85rem; font-weight: 600;
  font-family: inherit;
  transition: var(--transition); display: inline-flex; align-items: center; gap: 6px;
}
.btn-primary {
  background: var(--teal);
  color: #ffffff;
}
.btn-primary:hover { background: #4d665f; transform: translateY(-1px); box-shadow: 0 4px 12px var(--teal-glow); }
.btn-ghost {
  background: var(--card); border: 1px solid var(--card-border); color: var(--text);
}
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); background: var(--bg); }
.btn-danger { background: rgba(217,138,114,0.15); color: var(--pink); border: 1px solid rgba(217,138,114,0.3); }
.btn-danger:hover { background: rgba(217,138,114,0.25); }
.btn-sm { padding: 6px 12px; font-size: 0.78rem; border-radius: 8px; }

/* ── INPUT / TEXTAREA ── */
.input, .textarea, .select {
  width: 100%; padding: 11px 14px;
  background: var(--bg);
  border: 1px solid var(--card-border);
  border-radius: 12px; color: var(--text);
  font-family: inherit; font-size: 0.88rem;
  outline: none; transition: var(--transition);
}
.input:focus, .textarea:focus, .select:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-glow);
  background: var(--card);
}
.textarea { resize: vertical; min-height: 100px; }
.select option { background: var(--bg2); }
.form-group { margin-bottom: 16px; }
.form-label { font-size: 0.78rem; font-weight: 600; color: var(--text-muted); margin-bottom: 6px; display: block; text-transform: uppercase; letter-spacing: 0.5px; }
.form-label.required::after { content: ' *'; color: var(--pink); }

.input.error-field, .textarea.error-field {
  border-color: var(--pink) !important;
  box-shadow: 0 0 0 3px rgba(217, 138, 114, 0.1) !important;
  background: rgba(217, 138, 114, 0.02) !important;
}
.error-msg {
  font-size: 0.72rem;
  color: var(--pink);
  margin-top: 4px;
  font-weight: 600;
  display: none;
}
.error-field + .error-msg { display: block; }

/* ── MODAL ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(44, 53, 49, 0.5); backdrop-filter: blur(8px);
  z-index: 9999; display: none; align-items: center; justify-content: center;
  padding: 20px; overflow-y: auto;
}
.modal-overlay.open { display: flex; animation: fadeUp 0.3s ease; }
.modal {
  background: var(--card); border: 1px solid var(--card-border);
  box-shadow: 0 20px 40px rgba(142, 124, 104, 0.12);
  border-radius: 20px; padding: 28px; width: 100%; max-width: 480px;
  position: relative; margin: auto;
}
.modal h3 {
  font-size: 1.25rem; font-weight: 700;
  margin-bottom: 20px; color: var(--teal);
}
.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: var(--card); border: 1px solid var(--card-border);
  color: var(--text-muted); border-radius: 8px; width: 32px; height: 32px;
  cursor: pointer; font-size: 1rem; display: grid; place-items: center;
  transition: var(--transition);
}
.modal-close:hover { color: var(--text); background: var(--bg); }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; flex-wrap: wrap; }

@media (max-width: 480px) {
  .modal { padding: 20px; width: 95%; }
  .modal-actions { flex-direction: column-reverse; }
  .modal-actions .btn { width: 100%; justify-content: center; }
}

/* ── BADGE / TAG ── */
.badge {
  padding: 3px 10px; border-radius: 99px; font-size: 0.72rem; font-weight: 600;
  display: inline-block;
}
.badge-teal { background: var(--teal-glow); color: var(--teal); }
.badge-lavender { background: var(--lavender-glow); color: var(--lavender); }
.badge-pink { background: var(--pink-glow); color: var(--pink); }
.badge-orange { background: var(--orange-glow); color: var(--orange); }
.badge-green { background: rgba(95, 125, 117, 0.2); color: var(--teal); }
.badge-red { background: rgba(217, 138, 114, 0.2); color: var(--pink); }

/* ── DASHBOARD ── */
.greeting-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px; margin-bottom: 24px;
  position: relative; overflow: hidden;
  box-shadow: var(--shadow);
}
.greeting-card::before {
  content: '';
  position: absolute; right: -40px; top: 50%; transform: translateY(-50%) rotate(-15deg);
  width: 160px; height: 160px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235f7d75' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 4c-2.5 0-5.5 1.5-5.5 5 0 3 2.5 4.5 2.5 7.5 0 2-1.5 3.5-1.5 3.5h3c.8-1.5 1.5-2.5 3-2.5s2.2 1 3 2.5h3s-1.5-1.5-1.5-3.5c0-3 2.5-4.5 2.5-7.5 0-3.5-3-5-5.5-5z'/%3E%3Cpath d='M12 4v4'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.05;
  pointer-events: none;
}
.greeting-card h2 {
  font-size: 1.7rem; font-weight: 700;
  color: var(--teal);
}
.greeting-card .date-text { color: var(--text-muted); font-size: 0.85rem; margin-top: 4px; font-weight: 500; }
.quote-text { color: var(--text); font-size: 0.92rem; margin-top: 12px; font-style: italic; opacity: 0.85; line-height: 1.5; }

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.section-header h2, .section-header h3 {
  margin: 0;
}

.tips-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.tip-item {
  background: var(--bg);
  padding: 14px 18px;
  border-radius: 14px;
  border: 1px solid var(--card-border);
  transition: var(--transition);
}
.tip-item:hover {
  transform: translateX(3px);
  background: var(--card);
}
.tip-item strong {
  display: block;
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 4px;
}
.tip-item p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.list-container, .todo-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.todo-input-group {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}
.todo-input-group input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  font-family: inherit;
  transition: var(--transition);
}
.todo-input-group input:focus {
  border-color: var(--teal);
  background: var(--card);
}

.fc-stats {
  display: flex;
  gap: 20px;
  margin-bottom: 24px;
}
.fc-stat-item {
  flex: 1;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 16px;
  text-align: center;
}
.fc-stat-item span {
  display: block;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--teal);
}
.fc-stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-top: 4px;
}

.study-card-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.odontogram-scroll-wrapper {
  width: 100%;
  overflow-x: auto;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

/* ── SCHEDULE ── */
.schedule-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.day-col { background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius); padding: 14px 12px; min-height: 200px; box-shadow: var(--shadow); transition: var(--transition); }
.day-col:hover { border-color: var(--teal-glow); box-shadow: var(--shadow-lg); }
.day-col.today { border-color: var(--teal); background: linear-gradient(180deg, var(--card) 0%, var(--bg) 100%); }
.day-header { text-align: center; margin-bottom: 12px; }
.day-name { font-size: 0.68rem; color: var(--text-muted); font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.day-num {
  font-size: 1.1rem; font-weight: 700;
  width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center; margin: 6px auto 0;
  transition: var(--transition);
}
.day-num.today-num { background: var(--teal); color: #ffffff; box-shadow: 0 4px 8px var(--teal-glow); }
.event-pill {
  padding: 6px 10px; border-radius: 8px; font-size: 0.72rem; font-weight: 600;
  margin-bottom: 6px; cursor: pointer; transition: var(--transition);
  display: flex; align-items: center; gap: 4px;
  box-shadow: 0 2px 4px rgba(142, 124, 104, 0.03);
}
.event-pill:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 4px 8px rgba(142, 124, 104, 0.06); }
.event-kuliah { background: var(--teal-glow); color: var(--teal); border-left: 3px solid var(--teal); }
.event-praktikum { background: var(--lavender-glow); color: var(--lavender); border-left: 3px solid var(--lavender); }
.event-ujian { background: var(--pink-glow); color: var(--pink); border-left: 3px solid var(--pink); }
.event-lainnya { background: var(--orange-glow); color: var(--orange); border-left: 3px solid var(--orange); }

/* ── NEW SCHEDULE UI ── */
.mode-btn-sm {
  padding: 6px 14px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 600;
  transition: var(--transition);
}
.mode-btn-sm:hover { color: var(--teal); }
.mode-btn-sm.active {
  background: var(--card);
  color: var(--teal);
  box-shadow: var(--shadow);
  border: 1px solid var(--card-border);
}

.month-view-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
}
.month-day {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 10px;
  min-height: 100px;
  transition: var(--transition);
  box-shadow: var(--shadow);
}
.month-day:hover { transform: translateY(-1px); border-color: var(--teal-glow); box-shadow: var(--shadow-lg); }
.month-day.other-month { opacity: 0.3; background: var(--bg2); }
.month-day.today { border-color: var(--teal); box-shadow: inset 0 0 0 1px var(--teal); }
.month-day-num { font-weight: 700; font-size: 0.85rem; margin-bottom: 8px; }

.year-view-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.mini-month {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
}
.mini-month-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 12px;
  text-align: center;
}
.mini-month-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}
.mini-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  border-radius: 6px;
  cursor: pointer;
}
.mini-day.has-event { background: var(--teal-glow); color: var(--teal); font-weight: 700; }
.mini-day.today { background: var(--teal); color: #fff; }
.mini-day:hover { background: var(--bg2); }

@media (max-width: 768px) {
  .month-view-grid { grid-template-columns: repeat(7, 1fr) !important; gap: 4px; }
  .month-day { min-height: 60px; padding: 4px; border-radius: 6px; }
  .month-day-num { font-size: 0.7rem; }
  .event-pill span { display: none; }
}

/* ── FLASHCARD ── */
.flashcard-controls {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 24px;
}
/* ── PREMIUM FLASHCARD SYSTEM ── */
.flashcard-scene {
  perspective: 2000px; /* Enhanced depth */
  width: 100%; max-width: 600px; height: 320px;
  margin: 0 auto 32px;
}

.flashcard-inner {
  width: 100%; height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1); /* Elastic smooth flip */
}

.flashcard-inner.flipped {
  transform: rotateY(180deg);
}

.flashcard-face {
  position: absolute; inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 24px; padding: 40px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0,0,0,0.08);
  border: 1px solid var(--card-border);
}

.flashcard-front {
  background: linear-gradient(135deg, var(--card) 0%, var(--bg2) 100%);
  transform: rotateY(0deg) translateZ(1px); /* Force layer separation */
}

.flashcard-back {
  background: linear-gradient(135deg, var(--bg2) 0%, var(--card) 100%);
  transform: rotateY(180deg) translateZ(1px);
}

/* Premium Text & Labels */
.card-label {
  font-size: 0.75rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: 2px;
  color: var(--teal); margin-bottom: 20px;
  background: var(--teal-glow);
  padding: 4px 12px; border-radius: 99px;
}

.card-term {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.8rem; font-weight: 800;
  color: var(--text); line-height: 1.3;
  margin-bottom: 15px;
}

.card-def {
  font-size: 1.05rem; line-height: 1.8;
  color: var(--text);
  max-width: 90%;
}

.flashcard-nav {
  display: flex; align-items: center; justify-content: center;
  gap: 16px; margin-top: 20px;
}

.card-counter {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.9rem; font-weight: 700;
  color: var(--text-muted);
  background: var(--bg2);
  padding: 6px 16px; border-radius: 99px;
}
.progress-bar { background: var(--card); border-radius: 99px; height: 6px; margin: 16px 0; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--teal), var(--lavender)); transition: width 0.5s ease; }
.fc-list { display: grid; grid-template-columns: repeat(auto-fill,minmax(260px,1fr)); gap: 14px; }
.fc-item {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 12px; padding: 16px; display: flex; align-items: center; gap: 12px;
}
.fc-item-content { flex: 1; }
.fc-term { font-weight: 600; font-size: 0.9rem; margin-bottom: 4px; }
.fc-def { font-size: 0.78rem; color: var(--text-muted); }
.fc-actions { display: flex; gap: 6px; flex-shrink: 0; }

/* ── NOTES ── */
.notes-layout { display: grid; grid-template-columns: 260px 1fr; gap: 20px; min-height: 500px; }
.notes-sidebar { display: flex; flex-direction: column; gap: 10px; }
.note-item {
  padding: 10px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 4px;
  border: 1px solid transparent;
}
.note-item:hover { 
  background: rgba(78,205,196,0.06); 
}
.note-item.active { 
  background: var(--card);
  border-color: var(--card-border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.note-item h4 { font-size: 0.88rem; font-weight: 600; margin-bottom: 4px; }
.note-item p { font-size: 0.74rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.note-editor.word-layout {
  background: var(--bg2);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0;
  box-shadow: var(--shadow);
}

/* --- PREMIUM SLEEK HEADER (NOTION-STYLE) --- */
.note-sleek-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}

[data-theme="dark"] .note-sleek-header {
  background: rgba(15, 23, 42, 0.85);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.note-sleek-header .header-left,
.note-sleek-header .header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-divider {
  width: 1px;
  height: 24px;
  background: var(--card-border);
  margin: 0 4px;
}

.note-sleek-header .btn {
  border-radius: 99px !important;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
  letter-spacing: 0.3px;
  border: 1px solid var(--card-border);
  background: var(--card);
}

.note-sleek-header .btn-primary {
  background: var(--teal) !important;
  border-color: var(--teal) !important;
  color: #fff !important;
  box-shadow: 0 4px 12px var(--teal-glow) !important;
}

.note-sleek-header .btn-ghost:hover {
  background: var(--teal-glow) !important;
  color: var(--teal) !important;
  border-color: var(--teal) !important;
}

.toolbar-input, .toolbar-select {
  height: 32px !important;
  font-size: 0.8rem !important;
  border-radius: 99px !important;
  padding: 0 16px !important;
  background: var(--bg2) !important;
  border: 1px solid var(--card-border) !important;
  color: var(--text) !important;
  font-weight: 600 !important;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
  transition: all 0.2s ease;
}

.toolbar-input:hover, .toolbar-select:hover {
  background: var(--card) !important;
  border-color: var(--teal-glow) !important;
}

.toolbar-input:focus, .toolbar-select:focus {
  border-color: var(--teal) !important;
  background: var(--card) !important;
  box-shadow: 0 0 0 3px var(--teal-glow) !important;
}

/* AI Dropdown Styling */
.btn-ai-dropdown {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(99, 102, 241, 0.05)) !important;
  color: var(--teal) !important;
  border: 1px solid rgba(14, 165, 233, 0.2) !important;
}

.btn-ai-dropdown:hover {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.15), rgba(99, 102, 241, 0.15)) !important;
  border-color: rgba(99, 102, 241, 0.4) !important;
  transform: translateY(-1px);
}

/* --- THE DOCUMENT CANVAS & WRITING PAPER (Notion Style) --- */
.word-canvas {
  flex: 1;
  overflow-y: auto;
  display: block;
  max-height: 100vh;
  background: #ffffff;
  transition: background 0.3s ease;
  scrollbar-width: thin;
  scrollbar-color: var(--card-border) transparent;
}

[data-theme="dark"] .word-canvas {
  background: #0f172a;
}

/* Elegant custom scrollbar for the writing desk */
.word-canvas::-webkit-scrollbar {
  width: 6px;
}
.word-canvas::-webkit-scrollbar-track {
  background: transparent;
}
.word-canvas::-webkit-scrollbar-thumb {
  background-color: var(--card-border);
  border-radius: 99px;
}

.word-paper {
  width: 100%;
  max-width: 900px;
  min-height: 100vh;
  margin: 0 auto;
  position: relative;
  padding: 60px 40px;
  display: flex;
  flex-direction: column;
  background: transparent;
}

/* Remove old borders and shadows to achieve the seamless Notion look */
[data-theme="light"] .word-paper,
body:not([data-theme="dark"]) .word-paper,
[data-theme="dark"] .word-paper {
  box-shadow: none;
  border: none;
  color: var(--text);
}

.word-title {
  width: 100%;
  background: transparent !important;
  border: none !important;
  color: inherit !important;
  font-family: 'Plus Jakarta Sans', 'Segoe UI', sans-serif !important;
  font-size: 2.4rem !important;
  font-weight: 800 !important;
  margin-bottom: 8px !important;
  padding: 0 0 10px 0 !important;
  outline: none !important;
  box-shadow: none !important;
  letter-spacing: -1.2px !important;
  border-bottom: 2px dashed transparent !important;
  transition: all 0.2s ease;
}

.word-title::placeholder {
  color: var(--text-muted) !important;
  opacity: 0.3 !important;
}

.word-title:hover {
  border-bottom-color: var(--card-border) !important;
}

.word-title:focus {
  outline: none !important;
  border-bottom-color: var(--teal) !important;
}

/* Custom borderless Jodit Editor to blend seamlessly into the paper */
.word-editor-wrapper .jodit-container {
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
}

.word-editor-wrapper .jodit-wysiwyg {
  padding: 8px 0 !important;
  min-height: 600px !important;
  font-size: 1.05rem !important; /* Premium readable font size */
  line-height: 1.9 !important; /* Perfect line spacing for documents */
  font-family: 'Inter', system-ui, sans-serif !important;
  color: inherit !important; /* Use paper color */
  background: transparent !important; /* Blend into paper */
  outline: none !important;
}

[data-theme="dark"] .word-editor-wrapper .jodit-wysiwyg {
  color: #f1f5f9 !important;
}

/* Jodit Toolbar Premium Aesthetics */
.word-editor-wrapper .jodit-toolbar__box {
  background: var(--bg2) !important;
  border: 1px solid var(--card-border) !important;
  border-radius: 10px !important;
  margin-bottom: 20px !important;
  padding: 4px 8px !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02) !important;
  transition: all 0.3s ease;
}

[data-theme="dark"] .word-editor-wrapper .jodit-toolbar__box {
  background: #111827 !important; /* Deeper dark for high contrast in dark mode toolbar */
  border: 1px solid rgba(255, 255, 255, 0.06) !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2) !important;
}

.word-editor-wrapper .jodit-toolbar-button__button {
  color: var(--text) !important;
  border-radius: 6px !important;
  transition: all 0.2s ease !important;
}

[data-theme="dark"] .word-editor-wrapper .jodit-toolbar-button__button {
  color: #e2e8f0 !important;
}

.word-editor-wrapper .jodit-toolbar-button__button:hover {
  background: var(--card-border) !important;
}

[data-theme="dark"] .word-editor-wrapper .jodit-toolbar-button__button:hover {
  background: rgba(255, 255, 255, 0.08) !important;
}
#note-preview img { max-width: 100%; border-radius: 8px; margin: 10px 0; }
#note-preview h1, #note-preview h2, #note-preview h3 { font-family: 'Plus Jakarta Sans', sans-serif; margin-top: 16px; margin-bottom: 8px; color: var(--teal); }
#note-preview p { margin-bottom: 12px; }
#note-preview ul, #note-preview ol { margin-left: 20px; margin-bottom: 12px; }
#note-preview blockquote { border-left: 4px solid var(--card-border); padding-left: 12px; color: var(--text-muted); font-style: italic; }

.note-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 300px; color: var(--text-muted); gap: 12px; }
.note-empty .empty-icon { font-size: 3rem; opacity: 0.4; }

/* ── POMODORO ── */
.pomodoro-wrap { max-width: 500px; margin: 0 auto; text-align: center; }
.timer-modes { display: flex; gap: 10px; justify-content: center; margin-bottom: 32px; }
.mode-btn {
  padding: 8px 20px; border-radius: 10px; border: 1px solid var(--card-border);
  background: var(--card); color: var(--text-muted); cursor: pointer;
  font-size: 0.82rem; font-weight: 600; transition: var(--transition); font-family: 'Inter', sans-serif;
}
.mode-btn.active { background: var(--teal-glow); color: var(--teal); border-color: var(--teal); }
.timer-ring-wrap { position: relative; width: 260px; height: 260px; margin: 0 auto 32px; }
.timer-ring { transform: rotate(-90deg); }
.timer-ring-bg { fill: none; stroke: var(--card-border); stroke-width: 8; }
.timer-ring-fill { fill: none; stroke-width: 8; stroke-linecap: round; transition: stroke-dashoffset 1s linear; }
.timer-display { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.timer-time { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 3.2rem; font-weight: 800; }
.timer-mode-label { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }
.timer-controls { display: flex; gap: 14px; justify-content: center; }
.timer-btn {
  width: 52px; height: 52px; border-radius: 50%; border: none; cursor: pointer;
  font-size: 1.3rem; display: grid; place-items: center; transition: var(--transition);
}
.timer-btn-main { background: var(--teal); color: #ffffff; }
.timer-btn-main:hover { transform: scale(1.08); background: #0284c7; box-shadow: 0 8px 20px var(--teal-glow); }
.timer-btn-secondary { background: var(--card); border: 1px solid var(--card-border); color: var(--text-muted); }
.timer-btn-secondary:hover { color: var(--text); }
.sessions-done { margin-top: 24px; }
.session-dots { display: flex; gap: 8px; justify-content: center; margin-top: 10px; }
.session-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--card-border); transition: 0.3s; }
.session-dot.done { background: var(--teal); box-shadow: 0 0 8px var(--teal); }
.pomodoro-tasks { margin-top: 28px; text-align: left; }

/* ── TODAY SCHEDULE LIST ── */
.today-events { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.today-event {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: 12px;
  background: var(--bg); border: 1px solid var(--card-border);
  transition: var(--transition);
}
.today-event:hover { background: var(--teal-glow); border-color: var(--teal); }
.event-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.event-info { flex: 1; }
.event-name { font-size: 0.88rem; font-weight: 600; }
.event-time { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }

/* ── TODO LIST ── */
.todo-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: 10px;
  background: var(--bg); border: 1px solid var(--card-border);
  transition: var(--transition);
}
.todo-item:hover { border-color: var(--teal); }
.todo-check {
  width: 20px; height: 20px; border-radius: 6px; border: 2px solid var(--card-border);
  cursor: pointer; display: grid; place-items: center; transition: 0.2s;
  color: transparent; font-size: 12px; flex-shrink: 0;
}
.todo-item.done .todo-check {
  background: var(--teal); border-color: var(--teal); color: #fff;
}
.todo-text { flex: 1; font-size: 0.88rem; transition: 0.2s; }
.todo-item.done .todo-text { text-decoration: line-through; color: var(--text-muted); }
.todo-del { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 0.9rem; opacity: 0.4; transition: 0.2s; padding: 4px 6px; border-radius: 6px; }
.todo-del:hover { opacity: 1; color: #f87171; background: rgba(248,113,113,0.12); }
.todo-item:hover .todo-del { opacity: 0.8; }



/* ── TOAST ── */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 10000; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 12px; padding: 12px 18px;
  color: var(--text);
  font-size: 0.85rem; display: flex; align-items: center; gap: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  animation: slideIn 0.3s ease;
}
.toast.success { border-left: 3px solid var(--teal); }
.toast.error { border-left: 3px solid #f87171; }
.toast.warning { border-left: 3px solid var(--orange); }
.toast.info { border-left: 3px solid var(--lavender); }
@keyframes slideIn { from { transform: translateX(100px); opacity:0; } to { transform: translateX(0); opacity:1; } }

/* ── EMPTY STATE ── */
.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 60px 20px; gap: 12px; color: var(--text-muted); }
.empty-state .empty-icon { font-size: 3.5rem; opacity: 0.3; }
.empty-state p { font-size: 0.9rem; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  :root { --sidebar-w: 240px; }
  #main { padding: 24px 30px; }
}

@media (max-width: 768px) {
  .mobile-header { display: flex; }
  #sidebar { 
    transform: translateX(-100%);
    box-shadow: 20px 0 50px rgba(0,0,0,0.1);
  }
  #sidebar.active { transform: translateX(0); }
  #main { 
    margin-left: 0; 
    padding: 80px 16px 24px; 
  }
  
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr !important; }
  .schedule-grid { grid-template-columns: 1fr !important; }
  
  .card { padding: 16px; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  
  .notes-layout { grid-template-columns: 1fr; height: auto; }
  .notes-sidebar { height: 300px; border-right: none; border-bottom: 1px solid var(--card-border); }
}

/* iPad Portrait */
@media (min-width: 769px) and (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr) !important; }
  .grid-3 { grid-template-columns: repeat(2, 1fr) !important; }
}

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.section.active { animation: fadeIn 0.4s ease forwards; }

/* ── LEADERBOARD ── */
.leaderboard-item { display:flex; align-items:center; gap:12px; padding:12px; border-radius:10px; background:var(--bg); border:1px solid var(--card-border); margin-bottom:8px; }
.lb-rank { font-size:1.3rem; width:28px; text-align:center; }
.lb-info { flex:1; }
.lb-name { font-size:.88rem; font-weight:700; }
.lb-uni { font-size:.72rem; color:var(--text-muted); }
.lb-streak { font-size:.85rem; font-weight:700; color:var(--orange); }

/* ── CHAT ── */
.chat-bubble { max-width:80%; padding:10px 14px; border-radius:16px; font-size:.85rem; line-height:1.5; word-break:break-word; }
.chat-bubble.other { background:var(--card); border:1px solid var(--card-border); align-self:flex-start; border-bottom-left-radius:4px; }
.chat-bubble.me { background:var(--teal); color:#fff; align-self:flex-end; border-bottom-right-radius:4px; }
.chat-name { font-size:.68rem; font-weight:700; color:var(--teal); margin-bottom:3px; }
.chat-time { font-size:.65rem; opacity:.6; margin-top:4px; text-align:right; }

/* ── REPOSITORY ── */
.repo-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:16px; }
.repo-card { transition:var(--transition); }
.repo-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-lg); }

/* ── MOBILE RESPONSIVE FOR NEW SECTIONS ── */
@media (max-width:768px) {
  .repo-grid { grid-template-columns:1fr; }
  .chat-bubble { max-width:90%; }
}

/* ── PRINT (PDF EXPORT) ── */
@media print {
  body * { visibility: hidden; }
  #main { visibility: visible; }
  #sidebar, button, .modal-overlay { display: none !important; }
  body { background: white; color: black; }
  .card { box-shadow: none; border: 1px solid #ccc; break-inside: avoid; margin-bottom: 20px; }
}

/* ── JODIT MODERN STYLING ── */
.jodit-container:not(.jodit_inline) {
  border: none !important;
  border-radius: 12px !important;
  font-family: 'Inter', sans-serif !important;
}
.jodit-toolbar__box {
  background: var(--bg2) !important;
  border-bottom: 1px solid var(--card-border) !important;
  border-radius: 12px 12px 0 0 !important;
}
.jodit-wysiwyg {
  background: var(--bg) !important;
  color: var(--text) !important;
  font-family: 'Inter', sans-serif !important;
  font-size: 1rem !important;
  line-height: 1.6 !important;
  padding: 20px !important;
}
.jodit-toolbar-button__button {
  border-radius: 6px !important;
}
.jodit-toolbar-button__button:hover {
  background: var(--card-border) !important;
}

/* ── CLOZE DELETION (ISI TITIK-TITIK) ── */
.cloze-box {
  background: var(--text);
  color: var(--text);
  padding: 2px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-block;
  margin: 0 2px;
  font-weight: bold;
  user-select: none;
}
.cloze-box:not(.revealed):hover {
  opacity: 0.7;
}
.cloze-box.revealed {
  background: var(--bg2);
  color: var(--teal);
  border: 1px dashed var(--teal);
}

/* ── MNEMONIC CARDS ── */
.mnemonic-card {
  padding: 20px;
  border-radius: 20px;
  transition: var(--transition);
  border: 1px solid var(--card-border);
  background: var(--card);
  position: relative;
  overflow: hidden;
}
.mnemonic-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--pink);
}
.mnemonic-phrase {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--teal);
  margin: 10px 0;
  font-family: 'Plus Jakarta Sans', sans-serif;
  letter-spacing: -0.5px;
}

/* ══ OSCE EXAM SIMULATOR ══ */

.osce-setup-card {
  text-align: center;
  padding: 24px 20px;
  transition: var(--transition);
}
.osce-setup-card:hover { transform: translateY(-3px); }
.osce-setup-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
}
.osce-setup-card .input {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 800;
  padding: 12px;
}

/* Toggle Switch */
.osce-toggle-label {
  position: relative;
  display: inline-block;
  width: 52px;
  height: 28px;
  cursor: pointer;
}
.osce-toggle-label input { opacity: 0; width: 0; height: 0; }
.osce-toggle-slider {
  position: absolute; inset: 0;
  background: var(--card-border);
  border-radius: 99px;
  transition: 0.3s;
}
.osce-toggle-slider::before {
  content: '';
  position: absolute;
  height: 20px; width: 20px;
  left: 4px; bottom: 4px;
  background: white;
  border-radius: 50%;
  transition: 0.3s;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}
.osce-toggle-label input:checked + .osce-toggle-slider { background: var(--orange); }
.osce-toggle-label input:checked + .osce-toggle-slider::before { transform: translateX(24px); }

/* Timer Card */
.osce-timer-card {
  text-align: center;
  padding: 36px 24px 28px;
  position: relative;
  overflow: hidden;
}
.osce-timer-card::before {
  content: '';
  position: absolute;
  inset: -50%;
  background: radial-gradient(circle at center, var(--teal-glow) 0%, transparent 60%);
  opacity: 0.5;
  pointer-events: none;
}

/* Phase Badge */
.osce-phase-badge {
  display: inline-block;
  padding: 6px 20px;
  border-radius: 99px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.osce-phase-badge.work {
  background: var(--teal-glow);
  color: var(--teal);
  border: 1px solid var(--teal);
  animation: pulseBadge 2s ease-in-out infinite;
}
.osce-phase-badge.transit {
  background: var(--lavender-glow);
  color: var(--lavender);
  border: 1px solid var(--lavender);
  animation: pulseBadgeP 2s ease-in-out infinite;
}
.osce-phase-badge.done {
  background: rgba(74,222,128,0.15);
  color: #4ade80;
  border: 1px solid #4ade80;
  animation: none;
}
@keyframes pulseBadge {
  0%, 100% { box-shadow: 0 0 0 0 var(--teal-glow); }
  50% { box-shadow: 0 0 0 8px transparent; }
}
@keyframes pulseBadgeP {
  0%, 100% { box-shadow: 0 0 0 0 var(--lavender-glow); }
  50% { box-shadow: 0 0 0 8px transparent; }
}

/* Ring */
.osce-ring-wrap {
  position: relative;
  width: 280px; height: 280px;
  margin: 0 auto 28px;
}
.osce-ring { transform: rotate(-90deg); }
.osce-ring-bg { fill: none; stroke: var(--card-border); stroke-width: 10; }
.osce-ring-fill {
  fill: none; stroke-width: 10; stroke-linecap: round;
  stroke: var(--teal);
  transition: stroke-dashoffset 1s linear, stroke 0.5s;
}
.osce-timer-display {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}
.osce-timer-digits {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 3.5rem; font-weight: 800;
  letter-spacing: -2px;
  line-height: 1;
}
.osce-timer-sub {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 8px;
  font-weight: 500;
}

/* Controls */
.osce-controls {
  display: flex; gap: 16px;
  justify-content: center;
  align-items: center;
}

/* Station dots */
.osce-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--card-border);
  transition: all 0.3s;
  cursor: default;
}
.osce-dot.active { background: var(--teal); box-shadow: 0 0 0 3px var(--teal-glow); transform: scale(1.3); }
.osce-dot.done { background: #4ade80; }
.osce-dot.transit { background: var(--lavender); }

/* OSCE Question Bank Cards */
.osce-q-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 18px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.osce-q-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.osce-q-card-dept {
  font-size: 0.68rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1px;
  color: var(--lavender);
  background: var(--lavender-glow);
  padding: 3px 10px; border-radius: 99px;
  display: inline-block; margin-bottom: 10px;
}
.osce-q-card-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: .95rem; font-weight: 700;
  color: var(--text); margin-bottom: 8px;
}
.osce-q-card-body {
  font-size: .78rem; color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 3;
  -webkit-box-orient: vertical; overflow: hidden;
}
.osce-q-card-actions {
  display: flex; gap: 6px; justify-content: flex-end;
  margin-top: 14px; padding-top: 12px;
  border-top: 1px solid var(--card-border);
}

/* Transit Overlay */
.osce-transit-overlay {
  position: fixed; inset: 0; z-index: 99999;
  background: rgba(99, 102, 241, 0.95);
  backdrop-filter: blur(16px);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 24px; color: #fff;
  animation: fadeUp 0.4s ease;
}
.osce-transit-big { font-family: 'Plus Jakarta Sans',sans-serif; font-size: 5rem; font-weight: 900; }
.osce-transit-label { font-size: 1.2rem; font-weight: 600; opacity: 0.85; }
.osce-transit-next { font-size: 0.9rem; opacity: 0.6; }

/* Log item */
.osce-log-item {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px; border-radius: 12px;
  background: var(--bg); border: 1px solid var(--card-border);
}
.osce-log-num {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--teal-glow); color: var(--teal);
  display: grid; place-items: center;
  font-weight: 800; font-size: .85rem; flex-shrink: 0;
}
.osce-log-info { flex: 1; }
.osce-log-title { font-size: .88rem; font-weight: 700; }
.osce-log-time { font-size: .72rem; color: var(--text-muted); margin-top: 2px; }

/* Urgency pulse on timer < 30s */
@keyframes urgentPulse {
  0%, 100% { color: var(--text); }
  50% { color: #f87171; }
}
.osce-timer-digits.urgent { animation: urgentPulse 0.8s ease-in-out infinite; }

@media (max-width: 768px) {
  .osce-ring-wrap { width: 220px; height: 220px; }
  .osce-timer-digits { font-size: 2.8rem; }
  .osce-ring { width: 220px; height: 220px; }
  .osce-ring-bg, .osce-ring-fill { cx: 110; cy: 110; r: 94; }
}

/* ═══════════════════════════════════════════════
   KOAS AI — STYLES
═══════════════════════════════════════════════ */

/* Header */
/* Header */
.koas-ai-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding: 20px 24px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.koas-ai-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(95, 125, 117, 0.06), rgba(217, 138, 114, 0.06));
  pointer-events: none;
}
.koas-ai-title-wrap { display: flex; align-items: center; gap: 16px; }
.koas-ai-avatar {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, var(--teal), var(--pink));
  border-radius: 16px;
  display: grid; place-items: center;
  font-size: 1.6rem;
  box-shadow: 0 4px 12px var(--teal-glow);
  animation: aiPulse 3s ease-in-out infinite;
}
@keyframes aiPulse {
  0%, 100% { box-shadow: 0 4px 12px var(--teal-glow); }
  50% { box-shadow: 0 4px 20px rgba(217, 138, 114, 0.35); }
}
.koas-ai-title {
  font-size: 1.5rem; font-weight: 700;
  background: linear-gradient(90deg, var(--teal), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0;
}
.koas-ai-subtitle { font-size: .8rem; color: var(--text-muted); margin-top: 2px; }
.koas-ai-status {
  display: flex; align-items: center; gap: 8px;
  font-size: .78rem; color: var(--text-muted);
  background: var(--bg2); padding: 6px 14px;
  border-radius: 99px; border: 1px solid var(--card-border);
}
.koas-status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--teal);
  animation: statusBlink 2s ease-in-out infinite;
}
@keyframes statusBlink {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 3px var(--teal-glow); }
  50% { opacity: .5; box-shadow: none; }
}

/* Tabs */
.koas-tabs {
  display: flex; gap: 4px; background: var(--bg2);
  padding: 4px; border-radius: 14px; margin-bottom: 20px; overflow-x: auto;
}
.koas-tab {
  flex: 1; padding: 10px 16px; border: none; background: transparent;
  color: var(--text-muted); border-radius: 10px; cursor: pointer;
  font-size: .82rem; font-weight: 600; transition: var(--transition);
  white-space: nowrap; font-family: inherit;
}
.koas-tab:hover { color: var(--text); }
.koas-tab.active { background: var(--card); color: var(--teal); box-shadow: var(--shadow); border: 1px solid var(--card-border); }

/* Chat Layout */
.koas-chat-layout { display: grid; grid-template-columns: 1fr 240px; gap: 20px; align-items: start; }
.koas-chat-main {
  display: flex; flex-direction: column; gap: 0;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow);
}
.koas-messages {
  padding: 20px; min-height: 360px; max-height: 460px;
  overflow-y: auto; display: flex; flex-direction: column; gap: 16px;
  background: var(--bg); scroll-behavior: smooth;
}
.koas-msg { display: flex; gap: 10px; align-items: flex-start; animation: msgIn 0.3s ease; }
@keyframes msgIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.koas-msg.user { flex-direction: row-reverse; }
.koas-msg-avatar {
  width: 32px; height: 32px; border-radius: 10px;
  display: grid; place-items: center; font-size: 1rem; flex-shrink: 0;
  background: linear-gradient(135deg, var(--teal-glow), var(--pink-glow));
  border: 1px solid var(--card-border);
}
.koas-msg.user .koas-msg-avatar {
  background: var(--teal); font-size: .7rem;
  color: #fff; font-weight: 800;
}
.koas-msg-content { max-width: 78%; }
.koas-msg-bubble {
  padding: 12px 16px; border-radius: 16px;
  font-size: .88rem; line-height: 1.7; word-break: break-word;
}
.koas-msg.ai .koas-msg-bubble {
  background: var(--card); border: 1px solid var(--card-border);
  border-bottom-left-radius: 4px;
}
.koas-msg.user .koas-msg-bubble {
  background: linear-gradient(135deg, var(--teal), var(--lavender));
  color: #fff; border-bottom-right-radius: 4px;
}
.koas-msg-bubble ul, .koas-msg-bubble ol { padding-left: 18px; margin-top: 6px; }
.koas-msg-bubble li { margin-bottom: 4px; }
.koas-msg-bubble strong { color: var(--teal); }
.koas-msg.user .koas-msg-bubble strong { color: #f0f4f2; }
.koas-msg-bubble h3, .koas-msg-bubble h4 {
  font-size: .9rem; margin: 10px 0 4px; color: var(--teal);
}
.koas-msg-time { font-size: .65rem; color: var(--text-muted); margin-top: 4px; padding: 0 4px; }
.koas-msg.user .koas-msg-time { text-align: right; }

/* Action buttons in AI reply */
.koas-msg-actions { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.koas-action-btn {
  padding: 4px 10px; border-radius: 8px;
  border: 1px solid var(--card-border); background: var(--bg);
  color: var(--teal); font-size: .72rem; font-weight: 600;
  cursor: pointer; transition: var(--transition); font-family: inherit;
}
.koas-action-btn:hover { background: var(--teal-glow); border-color: var(--teal); }

/* Typing Indicator */
.koas-typing { display: flex; gap: 10px; align-items: center; padding: 8px 20px; }
.koas-typing-dots {
  display: flex; gap: 4px; padding: 8px 14px;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 16px; border-bottom-left-radius: 4px;
}
.koas-typing-dots span {
  width: 7px; height: 7px; border-radius: 50%; background: var(--teal);
  animation: typingBounce 1.2s ease-in-out infinite;
}
.koas-typing-dots span:nth-child(2) { animation-delay: .2s; background: var(--lavender); }
.koas-typing-dots span:nth-child(3) { animation-delay: .4s; background: var(--pink); }
@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); opacity: .6; }
  30% { transform: translateY(-6px); opacity: 1; }
}

/* Chips */
.koas-chips {
  padding: 12px 16px; display: flex; gap: 8px; flex-wrap: wrap;
  border-top: 1px solid var(--card-border); background: var(--bg2);
}
.koas-chip {
  padding: 6px 12px; border-radius: 99px;
  border: 1px solid var(--card-border); background: var(--card);
  color: var(--text-muted); font-size: .72rem; cursor: pointer;
  transition: var(--transition); font-family: inherit;
}
.koas-chip:hover { border-color: var(--teal); color: var(--teal); background: var(--teal-glow); }
.koas-ref-chip {
  padding: 8px 16px; border-radius: 99px;
  border: 1px solid var(--lavender); background: var(--lavender-glow);
  color: var(--lavender); font-size: .8rem; font-weight: 600;
  cursor: pointer; transition: var(--transition); font-family: inherit;
}
.koas-ref-chip:hover { background: var(--lavender); color: #fff; transform: translateY(-1px); }

/* Input Area */
.koas-input-area {
  padding: 12px 16px; border-top: 1px solid var(--card-border);
  display: flex; flex-direction: column; gap: 8px;
}
.koas-textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--card-border);
  border-radius: 12px; padding: 12px 14px; color: var(--text);
  font-family: inherit; font-size: .88rem; line-height: 1.6;
  resize: none; outline: none; transition: var(--transition);
}
.koas-textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 3px var(--teal-glow); background: var(--card); }
.koas-input-actions { display: flex; gap: 8px; justify-content: flex-end; align-items: center; }

/* Mode Sidebar */
.koas-sidebar { position: sticky; top: 20px; }
.koas-mode-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--card-border); background: var(--bg);
  cursor: pointer; transition: var(--transition);
}
.koas-mode-item:has(input:checked) { border-color: var(--teal); background: var(--teal-glow); }
.koas-mode-item input[type="radio"] { display: none; }
.koas-mode-item strong { font-size: .82rem; display: block; margin-bottom: 2px; }
.koas-mode-item p { font-size: .7rem; color: var(--text-muted); }

/* Reference Result */
#koas-ref-result { padding: 24px; }
#koas-ref-result h2, #koas-ref-result h3 { font-family: 'Plus Jakarta Sans', sans-serif; color: var(--teal); margin: 12px 0 8px; }
#koas-ref-result p { line-height: 1.8; font-size: .88rem; margin-bottom: 8px; }
#koas-ref-result ul, #koas-ref-result ol { padding-left: 20px; line-height: 2; font-size: .88rem; }
#koas-ref-result table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: .85rem; }
#koas-ref-result th { background: var(--teal-glow); color: var(--teal); padding: 8px 12px; text-align: left; }
#koas-ref-result td { padding: 8px 12px; border-bottom: 1px solid var(--card-border); }
#koas-ref-result strong { color: var(--teal); }
#osce-ai-scenario { padding: 24px; }
#osce-ai-scenario h2, #osce-ai-scenario h3, #osce-ai-scenario h4 {
  font-family: 'Plus Jakarta Sans', sans-serif; color: var(--teal); margin: 12px 0 8px;
}
#osce-ai-scenario p, #osce-ai-scenario li { font-size: .88rem; line-height: 1.8; }
#osce-ai-scenario ul { padding-left: 20px; }
#osce-ai-evaluation { padding: 24px; }
#osce-ai-evaluation h3, #osce-ai-evaluation h4 {
  font-family: 'Plus Jakarta Sans', sans-serif; color: var(--teal); margin-bottom: 12px;
}
#osce-ai-evaluation p, #osce-ai-evaluation li { font-size: .88rem; line-height: 1.8; }
#osce-ai-evaluation ul { padding-left: 20px; }

/* AI Spinner */
.ai-spinner {
  width: 56px; height: 56px; border-radius: 50%;
  border: 4px solid rgba(255,255,255,0.15);
  border-top-color: var(--teal); border-left-color: var(--lavender);
  animation: spinAi 0.8s linear infinite;
}
@keyframes spinAi { to { transform: rotate(360deg); } }

/* AI Flashcard items */
.ai-fc-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 14px; border: 1px solid var(--card-border);
  border-radius: 12px; background: var(--bg); transition: var(--transition);
}
.ai-fc-item:has(input:checked) { border-color: var(--teal); background: var(--teal-glow); }
.ai-fc-item input[type="checkbox"] { margin-top: 3px; cursor: pointer; accent-color: var(--teal); }
.ai-fc-term { font-weight: 700; font-size: .9rem; margin-bottom: 4px; }
.ai-fc-def { font-size: .78rem; color: var(--text-muted); line-height: 1.6; }

/* History items */
.koas-history-item {
  padding: 8px 10px; border-radius: 8px; border: 1px solid var(--card-border);
  background: var(--bg); cursor: pointer; transition: var(--transition);
  font-size: .75rem; color: var(--text-muted); white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
}
.koas-history-item:hover { border-color: var(--teal); color: var(--teal); background: var(--teal-glow); }

/* API setup */
.koas-api-setup {
  margin-bottom: 24px; border: 1px dashed var(--orange); background: var(--orange-glow);
}

/* Responsive */
@media (max-width: 768px) {
  .koas-chat-layout { grid-template-columns: 1fr; }
  .koas-sidebar { position: static; }
  .koas-msg-content { max-width: 92%; }
  .koas-ai-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .koas-tabs { gap: 2px; }
  .koas-tab { padding: 8px 10px; font-size: .75rem; }
}

/* ── LANDING PAGE ── */
.landing-page {
  position: absolute; inset: 0;
  z-index: 9999;
  /* Cream and sage warm minimalist variables */
  --bg: #faf6f0;
  --bg2: #f4eee3;
  --text: #2c3531;
  --text-muted: #7d8c83;
  --card: #ffffff;
  --card-border: #e6dfd3;
  
  background: var(--bg);
  background-image: radial-gradient(at 0% 0%, rgba(95, 125, 117, 0.06) 0px, transparent 50%),
                    radial-gradient(at 100% 100%, rgba(217, 138, 114, 0.06) 0px, transparent 50%);
  color: var(--text);
  
  display: flex; flex-direction: column;
  overflow-y: auto; overflow-x: hidden;
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
}
.landing-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 246, 240, 0.85);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
}
[data-theme="dark"] .landing-nav { background: rgba(26, 34, 31, 0.85); }

.container {
  width: 100%; max-width: 1100px;
  margin: 0 auto; padding: 0 5%;
}
.text-center { text-align: center; }

.landing-logo {
  display: flex; align-items: center; gap: 12px;
}
.landing-logo .logo-icon {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--teal), var(--pink));
  color: #fff; border-radius: 14px;
  display: grid; place-items: center; font-size: 20px;
  box-shadow: 0 4px 12px var(--teal-glow);
}
.landing-logo .logo-text {
  font-family: 'Lora', Georgia, serif; font-size: 1.25rem; font-weight: 700;
  color: var(--text); letter-spacing: -0.5px;
}

.landing-hero-2col {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
  padding: 60px 0; align-items: center;
  position: relative; min-height: 80vh;
}
.landing-hero-content {
  position: relative; z-index: 10;
}
.hero-badge {
  display: inline-block; padding: 6px 16px; border-radius: 99px;
  font-size: 0.8rem; font-weight: 700;
  background: var(--pink-glow); color: var(--pink);
  margin-bottom: 24px; border: 1px solid rgba(217,138,114,0.2);
  box-shadow: 0 4px 12px rgba(142, 124, 104, 0.05);
}

.landing-title {
  font-family: 'Lora', Georgia, serif; font-size: 3.5rem; font-weight: 700;
  line-height: 1.2; color: var(--text); margin-bottom: 24px; letter-spacing: -0.5px;
}
.text-gradient {
  background: linear-gradient(90deg, var(--teal), var(--pink));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.landing-subtitle {
  font-size: 1.15rem; line-height: 1.7; color: var(--text-muted); 
  margin: 0 auto 40px; max-width: 700px;
}
.landing-actions { display: flex; gap: 16px; margin-bottom: 40px; flex-wrap: wrap; }
.btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: 14px; font-weight: 700; }

.landing-features-mini { display: flex; gap: 24px; flex-wrap: wrap; }
.feature-item {
  display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 0.9rem; color: var(--text);
}
.feature-icon {
  width: 32px; height: 32px; border-radius: 8px; display: grid; place-items: center; font-size: 1rem;
}

.landing-hero-visual {
  position: relative; height: 500px; width: 100%;
}
.visual-circle {
  position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.4; z-index: 0;
}
.circle-1 { width: 300px; height: 300px; background: var(--teal); top: 10%; right: 10%; }
.circle-2 { width: 250px; height: 250px; background: var(--pink); bottom: 10%; left: 10%; }
.glass-panel {
  background: rgba(255, 255, 255, 0.65); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border); border-radius: 24px;
  box-shadow: 0 20px 40px rgba(142, 124, 104, 0.08); position: absolute; z-index: 5;
}
[data-theme="dark"] .glass-panel {
  background: rgba(37, 51, 46, 0.65); border: 1px solid var(--card-border);
}
.main-panel { width: 85%; height: 380px; right: 0; top: 50%; transform: translateY(-50%); padding: 24px; display: flex; flex-direction: column; }
.panel-header { display: flex; gap: 8px; margin-bottom: 30px; }
.panel-header .dot { width: 12px; height: 12px; border-radius: 50%; }
.panel-body { display: flex; flex-direction: column; gap: 20px; }
.mock-line { height: 12px; border-radius: 6px; background: var(--card-border); opacity: 0.7; }
.mock-card {
  display: flex; gap: 16px; padding: 20px; border-radius: 16px; background: var(--card); border: 1px solid var(--card-border);
}
.mock-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--teal-glow); display: grid; place-items: center; font-size: 24px; }
.mock-text { height: 10px; border-radius: 4px; background: var(--text-muted); opacity: 0.3; }
.float-panel {
  padding: 16px 20px; display: flex; align-items: center;
  left: -20px; bottom: 80px; animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

.landing-section { padding: 80px 0; }
.bg-alt { background: var(--bg2); }

.section-heading { margin-bottom: 48px; max-width: 600px; margin-left: auto; margin-right: auto; }
.section-title { font-family: 'Lora', Georgia, serif; font-size: 2rem; font-weight: 700; margin-bottom: 16px; color: var(--text); }
.section-desc { font-size: 1.05rem; color: var(--text-muted); line-height: 1.7; }

.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px;
}
.feat-card {
  background: var(--card); border: 1px solid var(--card-border);
  padding: 32px; border-radius: 20px;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.feat-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--teal-glow);
}
.feat-card h3 { font-family: 'Lora', Georgia, serif; font-size: 1.15rem; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.feat-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }
.feat-icon {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; 
  font-size: 1.5rem; margin-bottom: 20px;
}

.ai-showcase {
  display: flex; align-items: center; gap: 40px;
}
.ai-showcase.reverse { flex-direction: row-reverse; }

.ai-text { flex: 1; }
.ai-list { list-style: none; padding: 0; margin-top: 24px; }
.ai-list li { margin-bottom: 12px; font-size: 0.95rem; color: var(--text); display: flex; align-items: center; gap: 8px; font-weight: 500; }

.ai-visual {
  flex: 1; display: flex; justify-content: center; align-items: center;
  background: radial-gradient(circle at center, var(--card-border) 0%, transparent 70%);
  padding: 40px; border-radius: 30px;
}

.chat-mockup {
  width: 100%; max-width: 400px;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 24px; padding: 20px;
  box-shadow: var(--shadow-lg);
}
.chat-bubble {
  padding: 16px; border-radius: 16px; margin-bottom: 16px;
  font-size: 0.9rem; line-height: 1.6; color: var(--text);
}
.chat-bubble.user { background: var(--bg2); border-bottom-right-radius: 4px; }
.chat-bubble.ai { background: var(--pink-glow); border: 1px solid rgba(217,138,114,0.2); border-bottom-left-radius: 4px; }

.osce-mockup {
  width: 100%; max-width: 350px;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 24px; padding: 32px 20px; text-align: center;
  box-shadow: var(--shadow-lg);
}
.osce-badge {
  display: inline-block; padding: 6px 12px; border-radius: 99px;
  font-size: 0.75rem; font-weight: 700; background: rgba(217,138,114,0.15); color: var(--pink);
  margin-bottom: 24px; border: 1px solid rgba(217,138,114,0.3);
}
.osce-timer {
  font-size: 4rem; font-weight: 700;
  color: var(--text); margin-bottom: 16px; line-height: 1;
}
.osce-station {
  font-size: 1rem; font-weight: 600; color: var(--lavender);
  background: var(--lavender-glow); padding: 8px 16px; border-radius: 12px;
}

@media (max-width: 992px) {
  .landing-hero-2col { grid-template-columns: 1fr; text-align: center; gap: 40px; padding: 40px 0; }
  .landing-hero-content { margin: 0 auto; width: 100%; }
  .landing-actions { justify-content: center; }
  .landing-features-mini { justify-content: center; }
  .landing-hero-visual { height: 380px; max-width: 450px; margin: 0 auto; }
  
  .ai-showcase { flex-direction: column; text-align: center; gap: 30px; }
  .ai-showcase.reverse { flex-direction: column; }
  .ai-text .feat-icon { margin: 0 auto 16px; }
  .ai-list li { justify-content: center; }
  .landing-title { font-size: 2.8rem; }
  .landing-section { padding: 60px 0; }
}

@media (max-width: 768px) {
  .landing-title { font-size: 2.1rem; line-height: 1.3; }
  .landing-subtitle { font-size: 0.95rem; margin-bottom: 28px; }
  .landing-actions { flex-direction: column; gap: 12px; width: 100%; max-width: 320px; margin: 0 auto 28px; }
  .btn-lg { width: 100%; justify-content: center; padding: 12px 20px; font-size: 0.95rem; }
  .landing-features-mini { gap: 12px; }
  .feature-item { font-size: 0.85rem; }
  
  .landing-hero-visual { height: 300px; max-width: 360px; }
  .main-panel { height: 260px; padding: 16px; }
  .panel-header { margin-bottom: 16px; }
  .mock-card { padding: 12px; margin-top: 10px; }
  .float-panel { bottom: 20px; left: 10px; padding: 10px 14px; font-size: 0.8rem; }
  
  .landing-section { padding: 48px 0; }
  .section-heading { margin-bottom: 28px; }
  .section-title { font-size: 1.6rem; }
  .section-desc { font-size: 0.9rem; }
  .feat-card { padding: 20px; border-radius: 16px; }
  .feat-card h3 { font-size: 1rem; }
  .feat-card p { font-size: 0.82rem; }
  .feat-icon { width: 40px; height: 40px; font-size: 1.25rem; margin-bottom: 12px; }
  
  .ai-visual { padding: 16px; border-radius: 20px; }
  .chat-mockup { padding: 16px; border-radius: 16px; }
  .chat-bubble { padding: 12px; font-size: 0.82rem; margin-bottom: 12px; }
  
  .osce-mockup { padding: 24px 16px; border-radius: 16px; }
  .osce-timer { font-size: 3rem; }
  .gauge-column { border-right: none !important; border-bottom: 1px solid var(--card-border) !important; padding-bottom: 20px !important; margin-bottom: 12px !important; }
}

/* --- Animations and Scroll Snap --- */
/* Enable scroll snap ONLY on desktop/larger screens to prevent content cut-off on mobile */
@media (min-width: 1025px) {
  .landing-page {
    scroll-snap-type: y mandatory;
  }
  .slide-section {
    scroll-snap-align: start;
    scroll-snap-stop: always;
  }
}

.landing-page {
  scroll-behavior: smooth;
}

.slide-section {
  min-height: 100vh;
  flex-shrink: 0; /* Critical: prevents sections from collapsing and overlapping in flex container */
  width: 100%;
}

.landing-section.slide-section {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Fix Hero min-height since it has nav inside it */
.landing-hero-2col {
  padding-top: 20px;
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.reveal-active {
  opacity: 1;
  transform: translateY(0);
}

/* ── COLLAPSIBLE SIDEBAR DESKTOP ── */
.desktop-sidebar-toggle {
  display: none;
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--text);
  width: 36px; height: 36px;
  border-radius: 8px;
  align-items: center; justify-content: center;
  cursor: pointer;
  margin-bottom: 24px;
  transition: var(--transition);
}
.desktop-sidebar-toggle:hover {
  background: var(--teal-glow);
  color: var(--teal);
  border-color: var(--teal);
}
@media (min-width: 769px) {
  .desktop-sidebar-toggle {
    display: inline-flex;
  }
  .desktop-sidebar-toggle.floating-toggle {
    display: none;
    position: fixed;
    top: 24px;
    left: 24px;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  }
  #sidebar.collapsed {
    transform: translateX(-100%);
  }
  #main.sidebar-collapsed {
    margin-left: 0;
    padding-left: 80px;
  }
  #main.sidebar-collapsed .desktop-sidebar-toggle.floating-toggle {
    display: inline-flex;
  }
}

/* ── FIX OVERLAP / SCROLLBAR KOAS AI ── */
.koas-chat-layout {
  gap: 24px;
}
.koas-chat-window {
  padding-right: 8px;
}

/* ── SLIDING AI EXPLAIN DRAWER FOR NOTES ── */
.note-ai-drawer {
  position: fixed;
  top: 0;
  right: -400px;
  width: 380px;
  height: 100vh;
  background: var(--card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-left: 1px solid var(--card-border);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
  z-index: 2000;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  padding: 24px;
}

.note-ai-drawer.open {
  right: 0;
}

.note-ai-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--card-border);
  padding-bottom: 12px;
}

.note-ai-drawer-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--teal);
  display: flex;
  align-items: center;
  gap: 8px;
}

.note-ai-drawer-close {
  background: transparent;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--text-muted);
  transition: var(--transition);
}

.note-ai-drawer-close:hover {
  color: #f87171;
  transform: rotate(90deg);
}

.note-ai-drawer-content {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-right: 4px;
}

.note-ai-drawer-input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.note-ai-result-area {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 16px;
  overflow-y: auto;
  font-size: 0.88rem;
  line-height: 1.7;
}

.note-ai-result-area h3, .note-ai-result-area h4 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  color: var(--teal);
  margin-top: 12px;
  margin-bottom: 6px;
}

.note-ai-result-area p {
  margin-bottom: 8px;
}

.note-ai-result-area ul, .note-ai-result-area ol {
  padding-left: 20px;
  margin-bottom: 8px;
}

.note-ai-drawer-actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

/* AI history active item layout */
.koas-history-item {
  transition: all 0.2s ease;
}
.koas-history-item:hover {
  background: var(--bg2) !important;
  transform: translateY(-1px);
}
.koas-history-item.active:hover {
  background: var(--teal-glow) !important;
}

/* Chat session delete button style */
.koas-history-del {
  opacity: 0.5;
  transition: all 0.2s ease;
}
.koas-history-del:hover {
  color: #f87171 !important;
  opacity: 1 !important;
  transform: scale(1.2);
}

/* --- PREMIUM DROPDOWN SYSTEM --- */
.dropdown-container {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 6px;
  min-width: 200px;
  background: var(--card);
  backdrop-filter: blur(25px);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
  padding: 8px 0;
  z-index: 1000;
  animation: dropdownFadeIn 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.dropdown-menu-right {
  left: auto !important;
  right: 0 !important;
}

@keyframes dropdownFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown-menu.show {
  display: block;
}

.dropdown-header {
  font-size: 0.65rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 8px 16px 4px;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  color: var(--text);
  font-size: 0.8rem;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
}

.dropdown-item:hover {
  background: rgba(78, 205, 196, 0.1);
  color: var(--teal);
  padding-left: 20px;
}

.dropdown-divider {
  height: 1px;
  background: var(--card-border);
  margin: 6px 0;
}

/* ── AI QUIZ SYSTEM ── */
.quiz-option-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 18px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
  margin-bottom: 4px;
}

.quiz-option-btn:hover:not(:disabled) {
  border-color: var(--teal);
  background: var(--teal-glow);
  transform: translateX(4px);
}

.quiz-option-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--bg2);
  border: 1px solid var(--card-border);
  border-radius: 50%;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.quiz-option-btn:hover:not(:disabled) .quiz-option-badge {
  border-color: var(--teal);
  color: var(--teal);
  background: var(--card);
}

/* Correct Option Style */
.quiz-option-btn.correct {
  border-color: #4ade80 !important;
  background: rgba(74, 222, 128, 0.1) !important;
  color: #4ade80 !important;
}

.quiz-option-btn.correct .quiz-option-badge {
  background: #4ade80 !important;
  border-color: #4ade80 !important;
  color: #090d16 !important;
}

/* Incorrect Option Style */
.quiz-option-btn.incorrect {
  border-color: #f87171 !important;
  background: rgba(248, 113, 113, 0.1) !important;
  color: #f87171 !important;
}

.quiz-option-btn.incorrect .quiz-option-badge {
  background: #f87171 !important;
  border-color: #f87171 !important;
  color: #090d16 !important;
}

/* Muted state for non-selected elements after submission */
.quiz-option-btn:disabled:not(.correct):not(.incorrect) {
  opacity: 0.5;
  cursor: not-allowed;
}

.quiz-option-btn:disabled {
  cursor: not-allowed;
}

/* ── DISTRACTION-FREE FOCUS MODE WRITING CANVAS ── */

/* Floating Feature Trigger Button */
.note-focus-fab {
  position: fixed;
  top: 24px;
  right: 24px;
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--teal);
  padding: 10px 18px;
  border-radius: 99px;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  z-index: 2000;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 700;
  font-size: 0.8rem;
  transition: var(--transition);
  user-select: none;
}
.note-focus-fab:hover {
  transform: translateY(-2px);
  background: var(--teal);
  color: #fff;
  border-color: var(--teal);
  box-shadow: 0 8px 20px var(--teal-glow);
}

/* Glassmorphic Features Popup Modal */
.focus-features-popup {
  position: fixed;
  inset: 0;
  z-index: 2100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.popup-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(44, 53, 49, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.popup-content {
  position: relative;
  width: 100%;
  max-width: 520px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  padding: 28px;
  animation: popupFadeIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 10;
}
@keyframes popupFadeIn {
  from { opacity: 0; transform: scale(0.92) translateY(15px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.popup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.popup-header h3 {
  font-family: 'Lora', Georgia, serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--teal);
}
.popup-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.popup-group {
  border-bottom: 1px solid var(--card-border);
  padding-bottom: 14px;
}
.popup-group:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.popup-group-title {
  font-size: 0.65rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.popup-actions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* Active State layout override for absolute distraction-free */
body.note-focus-mode #sidebar {
  display: none !important;
}
body.note-focus-mode .desktop-sidebar-toggle,
body.note-focus-mode .floating-toggle,
body.gdoc-fullscreen-mode .desktop-sidebar-toggle,
body.gdoc-fullscreen-mode .floating-toggle {
  display: none !important;
}
body.note-focus-mode .sidebar-overlay {
  display: none !important;
}
body.note-focus-mode .notes-sidebar {
  display: none !important;
}
body.note-focus-mode #notes-search-container {
  display: none !important;
}
body.note-focus-mode #sec-catatan .section-header {
  display: none !important;
}
body.note-focus-mode #main {
  margin-left: 0 !important;
  width: 100vw !important;
  max-width: 100vw !important;
  padding: 0 !important;
  height: 100vh !important;
  overflow: hidden !important;
}
body.note-focus-mode .notes-layout {
  grid-template-columns: 1fr !important;
  gap: 0 !important;
  min-height: 100vh !important;
}
body.note-focus-mode .note-editor.word-layout {
  border: none !important;
  border-radius: 0 !important;
  height: 100vh !important;
  width: 100vw !important;
  max-width: 100vw !important;
  box-shadow: none !important;
}
body.note-focus-mode .word-toolbar {
  display: none !important;
}
body.note-focus-mode .word-canvas {
  max-height: 100vh !important;
  height: 100vh !important;
  padding: 0 !important;
  background: var(--card) !important;
}
.paper-controls-row {
  position: relative !important;
  z-index: 10 !important;
}
body.note-focus-mode .word-paper {
  min-height: 100vh !important;
  width: 100% !important;
  max-width: 100% !important; /* 100% full screen width like Google Docs! */
  box-shadow: none !important;
  border-radius: 0 !important;
  border: none !important;
  padding: 40px 60px !important;
}
body.note-focus-mode #paper-focus-toggle-btn {
  position: fixed !important;
  top: 24px !important;
  right: 40px !important;
  z-index: 999999 !important; /* Float above Jodit and other note UI */
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  background: var(--card) !important;
  padding: 6px 14px !important;
  border-radius: 8px !important;
}
body.note-focus-mode .word-editor-wrapper .jodit-wysiwyg {
  min-height: calc(100vh - 200px) !important;
}
/* Dedicated Google Docs Fullscreen Mode */
body.gdoc-fullscreen-mode {
  overflow: hidden !important;
}
body.gdoc-fullscreen-mode #note-gdoc-frame-container {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  z-index: 999999 !important; /* Float above all other app UI */
  border: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  background: #fff !important;
}

/* ── GOOGLE DOCS INTEGRATION ── */

/* When GDoc is shown, remove canvas height constraint & reduce paper padding */
.word-canvas.gdoc-active {
  max-height: none;
  padding: 20px 12px;
}
.word-paper.gdoc-active {
  padding: 28px 24px;
  max-width: 100%;
  min-height: auto;
}
.word-paper.gdoc-active .paper-controls-row {
  margin-bottom: 8px;
  padding-bottom: 8px;
}
.word-paper.gdoc-active .word-title {
  font-size: 1.6rem !important;
  margin-bottom: 4px !important;
  letter-spacing: -0.5px !important;
}

#note-gdoc-wrapper {
  animation: fadeUp 0.35s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.gdoc-status-bar {
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(142, 124, 104, 0.05);
}

.gdoc-status-bar:hover {
  border-color: var(--teal) !important;
}

#note-gdoc-frame-container {
  box-shadow: 0 4px 12px rgba(142, 124, 104, 0.08);
  transition: var(--transition);
}

#note-gdoc-frame-container:hover {
  border-color: var(--teal) !important;
}

.gdoc-ai-sync-panel {
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.gdoc-ai-sync-panel:hover {
  border-color: rgba(229,186,115,0.6) !important;
}

#note-gdoc-iframe {
  transition: opacity 0.3s ease;
}

@keyframes pulseGDoc {
  0% { transform: scale(0.98); box-shadow: 0 0 0 0 rgba(95, 125, 117, 0.4); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(95, 125, 117, 0); }
  100% { transform: scale(0.98); box-shadow: 0 0 0 0 rgba(95, 125, 117, 0); }
}

.gdoc-status-bar .badge-teal {
  animation: pulseGDoc 2.5s infinite;
}