:root {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-hover: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-light: #eff6ff;
  --success: #059669;
  --success-light: #ecfdf5;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --summer: #ea580c;
  --summer-light: #fff7ed;
  --chart-line: #2563eb;
  --chart-fill: rgba(37, 99, 235, 0.08);
  --chart-grid: #f1f5f9;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --font-sans: 'Outfit', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
  --transition: 0.2s ease;
  --linkedin: #0077b5;
  --instagram: #e4405f;
  --youtube: #ff0000;
  --github: #333;
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-hover: #475569;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --text-inverse: #0f172a;
  --border-color: #334155;
  --border-light: #1e293b;
  --accent-light: #1e3a5f;
  --success-light: #064e3b;
  --warning-light: #78350f;
  --danger-light: #7f1d1d;
  --summer-light: #431407;
  --chart-fill: rgba(37, 99, 235, 0.15);
  --chart-grid: #334155;
  --github: #f0f0f0;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}

html, body {
  max-width: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px;
}

.hidden { display: none !important; }

.no-scrollbar {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.no-scrollbar::-webkit-scrollbar {
  display: none;
}

h1 { font-size: 1.75rem; font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: 1.125rem; font-weight: 600; }
h3 { font-size: 1rem; font-weight: 600; }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
  padding: 20px;
}

.modal.active { opacity: 1; visibility: visible; }

.modal-content {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  max-width: 440px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  animation: modalSlide 0.25s ease;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.modal-content::-webkit-scrollbar {
  display: none;
}

.modal-content.modal-lg { max-width: 560px; }

@keyframes modalSlide {
  from { transform: translateY(-16px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  padding: 24px 24px 20px;
  border-bottom: 1px solid var(--border-light);
  position: relative;
}

.modal-header h2 { font-size: 1.25rem; margin-bottom: 6px; }
.modal-subtitle { color: var(--text-muted); font-size: 0.9375rem; }

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border: none;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.modal-close:hover { background: var(--bg-hover); color: var(--text-primary); }

.modal-body { padding: 24px; }
.modal-hint { color: var(--text-secondary); font-size: 0.9375rem; margin-bottom: 20px; line-height: 1.5; }
.modal-actions { display: flex; gap: 12px; justify-content: flex-end; margin-top: 24px; }

.setup-modal { max-width: 480px; }
.setup-form { padding: 24px; }

.degree-summary {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 20px;
}

.summary-title {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 12px;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
}

.summary-row:last-child { border-bottom: none; }

.summary-row.highlight {
  background: var(--accent-light);
  margin: 8px -16px -16px;
  padding: 12px 16px;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  border-bottom: none;
}

.summary-row.highlight strong { color: var(--accent); font-size: 1.125rem; }

.form-group { margin-bottom: 20px; }
.form-group:last-child { margin-bottom: 0; }

.form-group label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: all var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
}

.form-hint {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.4;
}

.form-group.inline {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.inline label { margin-bottom: 0; }

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
input[type="number"] { -moz-appearance: textfield; appearance: textfield; }

select {
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 12px center;
  background-repeat: no-repeat;
  background-size: 18px;
  padding-right: 40px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary:hover { background: var(--accent-hover); }
.btn-primary.btn-full { width: 100%; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-secondary:hover { background: var(--bg-hover); }

.btn-text {
  background: none;
  border: none;
  padding: 8px 12px;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.btn-text:hover { background: var(--bg-hover); color: var(--text-primary); }

.btn-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
}

.btn-icon:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-icon.danger:hover { background: var(--danger-light); color: var(--danger); }
.btn-icon:disabled { opacity: 0.3; cursor: not-allowed; }

.icon-btn {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.icon-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.icon-btn svg { width: 20px; height: 20px; flex-shrink: 0; }

.icon-sun { display: none; }
.icon-moon { display: block; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

.main-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-light);
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  flex-shrink: 0;
}

.header-left h1 {
  font-size: 1.5rem;
  margin-bottom: 0;
}

.tagline { 
  font-size: 0.875rem; 
  color: var(--text-muted);
  margin-top: 4px;
}
.header-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.whatif-toggle { margin-right: 10px; }

.toggle-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.toggle-label input { display: none; }

.toggle-slider {
  width: 44px;
  height: 24px;
  background: var(--bg-tertiary);
  border-radius: 12px;
  position: relative;
  transition: all var(--transition);
  border: 1px solid var(--border-color);
}

.toggle-slider::after {
  content: '';
  width: 18px;
  height: 18px;
  background: var(--text-muted);
  border-radius: 50%;
  position: absolute;
  top: 2px;
  left: 2px;
  transition: all var(--transition);
}

.toggle-label input:checked + .toggle-slider {
  background: var(--accent-light);
  border-color: var(--accent);
}

.toggle-label input:checked + .toggle-slider::after {
  background: var(--accent);
  left: 22px;
}


.whatif-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  background: var(--accent);
  color: white;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  font-size: 0.9375rem;
  flex-wrap: wrap;
}

.whatif-banner .btn-text { color: white; opacity: 0.9; margin-left: auto; }
.whatif-banner .btn-text:hover { background: rgba(255,255,255,0.15); opacity: 1; }

.dashboard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px;
  text-align: center;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 110px;
}

.stat-card.clickable { cursor: pointer; }
.stat-card.clickable:hover { border-color: var(--accent); }

.stat-card.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.stat-card.primary .stat-label,
.stat-card.primary .stat-sub { color: rgba(255, 255, 255, 0.85); }

.stat-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.625rem;
  font-weight: 700;
}

.stat-sub {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.progress-bar {
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
  margin: 8px 0 4px;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.3s ease;
}

.warning-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  background: var(--warning-light);
  border: 1px solid var(--warning);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  font-size: 0.9375rem;
}

.warning-banner.danger { background: var(--danger-light); border-color: var(--danger); }
.warning-text { font-weight: 500; color: var(--text-primary); }

.advice-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
}

.advice-header {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 14px;
  color: var(--text-primary);
}

#adviceList { list-style: none; }

#adviceList li {
  position: relative;
  padding-left: 18px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  line-height: 1.5;
}

#adviceList li::before {
  content: "-";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 600;
}

#adviceList li:last-child { margin-bottom: 0; }

.visualization-section { margin-bottom: 24px; }

.chart-tabs { display: flex; gap: 4px; }

.chart-tab {
  padding: 8px 16px;
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.chart-tab:hover { background: var(--bg-hover); }
.chart-tab.active { background: var(--accent); color: white; }

.chart-container {
  margin-top: 18px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: 20px;
}

#gpaChart { width: 100%; height: 180px; display: block; }

.tools-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}

.tool-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
}

.tool-btn:hover { background: var(--bg-hover); border-color: var(--accent); }

.tool-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  color: var(--accent);
}

.tool-icon svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.tool-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  flex: 1;
}

.tool-label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.tool-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.timeline-section { margin-bottom: 24px; }

.timeline-section .section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.timeline-container {
  overflow-x: auto;
  padding-bottom: 10px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.timeline-container::-webkit-scrollbar { display: none; }

.timeline {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: max-content;
  padding: 10px 0;
}

.timeline-start,
.timeline-tile {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  text-align: center;
  min-width: 90px;
  transition: all var(--transition);
  cursor: pointer;
}

.timeline-tile:hover { border-color: var(--accent); transform: translateY(-2px); }
.timeline-tile.summer { border-color: var(--summer); background: var(--summer-light); }
.timeline-tile.health-danger { border-left: 4px solid var(--danger); }
.timeline-tile.health-warning { border-left: 4px solid var(--warning); }
.timeline-tile.health-normal { border-left: 4px solid #eab308; }
.timeline-tile.health-strong { border-left: 4px solid var(--success); }

.timeline-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.timeline-cgpa {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
}

.timeline-credits {
  display: block;
  font-size: 0.6875rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.timeline-connector {
  width: 20px;
  height: 2px;
  background: var(--border-color);
  flex-shrink: 0;
}

.target-section { margin-bottom: 24px; }

.target-inputs {
  display: flex;
  gap: 14px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.target-inputs .form-group.inline {
  flex: 0 1 auto;
  min-width: 100px;
  margin-bottom: 0;
  display: flex;
  flex-direction: column;
}

.target-inputs .form-group.inline label {
  margin-bottom: 6px;
  display: block;
  white-space: nowrap;
}

.target-inputs .form-group.inline input,
.target-inputs .form-group.inline select {
  margin-bottom: 0;
  height: 46px;
}

.target-calc-btn {
  height: 46px;
  padding: 0 20px;
  white-space: nowrap;
  margin-bottom: 0;
  flex-shrink: 0;
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #0a0a0a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  opacity: 1;
  transition: opacity 0.6s ease;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.loading-overlay.fade-out {
  opacity: 0;
  pointer-events: none;
}

.loading-gif {
  width: 450px;
  height: 450px;
  max-width: 85vw;
  max-height: 85vh;
  border-radius: 24px;
  object-fit: contain;
  box-shadow: 0 0 60px rgba(37, 99, 235, 0.3);
}

@media (max-width: 768px) {
  .loading-gif {
    width: 380px;
    height: 380px;
    border-radius: 20px;
  }
}

@media (max-width: 480px) {
  .loading-gif {
    width: 320px;
    height: 320px;
    border-radius: 16px;
  }
}

@media (max-width: 360px) {
  .loading-gif {
    width: 280px;
    height: 280px;
    border-radius: 14px;
  }
}

.target-result {
  margin-top: 18px;
  padding: 16px 20px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
}

.target-result p { color: var(--text-secondary); line-height: 1.5; }
.target-result strong { color: var(--accent); font-weight: 700; }

.target-result.impossible {
  background: var(--danger-light);
  border: 1px solid var(--danger);
}

.target-result.impossible p { color: var(--danger); }

.section-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  line-height: 1.5;
}

.recovery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.recovery-card {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}

.recovery-target {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.recovery-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.recovery-hint {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 6px;
}

#suggestContent { font-size: 0.9375rem; color: var(--text-secondary); }
#suggestContent ul { list-style: none; margin-top: 14px; }

#suggestContent li {
  padding: 14px 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  font-size: 0.9375rem;
}

#suggestContent li:last-child { margin-bottom: 0; }

.failure-result {
  margin-top: 18px;
  padding: 18px;
  background: var(--danger-light);
  border: 1px solid var(--danger);
  border-radius: var(--radius-md);
}

.failure-result h4 {
  font-size: 0.9375rem;
  color: var(--danger);
  margin-bottom: 10px;
}

.failure-result p { font-size: 0.9375rem; margin-bottom: 6px; line-height: 1.5; }
.failure-result strong { font-family: var(--font-mono); }

#repeatAnalyzerResults {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.repeat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent);
}

.repeat-item-info h4 { font-size: 1rem; margin-bottom: 4px; }
.repeat-item-info p { font-size: 0.8125rem; color: var(--text-muted); }
.repeat-item-impact { text-align: right; }

.repeat-impact-value {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--success);
}

.repeat-impact-label {
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.prereq-search-results {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 200px;
  overflow-y: auto;
  margin-bottom: 16px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.prereq-search-results::-webkit-scrollbar { display: none; }

.prereq-search-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

.prereq-search-item:hover { background: var(--bg-hover); }

.prereq-search-item .code {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent);
  margin-right: 12px;
}

.prereq-search-item .name {
  flex: 1;
  color: var(--text-primary);
}

.prereq-search-item .credits {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.prereq-details {
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.prereq-course-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding: 16px;
  background: var(--accent-light);
  border-radius: var(--radius-md);
}

.prereq-code {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--accent);
}

.prereq-name {
  font-size: 1rem;
  color: var(--text-primary);
}

.prereq-programs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.prereq-program-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.prereq-program-tag::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
}

.prereq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.prereq-section h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 12px;
}

.prereq-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.prereq-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

.prereq-chip .chip-code {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent);
}

.prereq-chip .chip-name {
  color: var(--text-secondary);
}

.prereq-empty {
  padding: 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
}

.import-preview {
  max-height: 300px;
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.import-preview::-webkit-scrollbar { display: none; }

.import-course-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

.import-course-item:last-child { margin-bottom: 0; }

.import-course-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.import-course-code {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent);
  font-size: 0.875rem;
}

.import-course-name {
  color: var(--text-primary);
  font-size: 0.9375rem;
}

.import-course-credits {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.import-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 18px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 10px;
}

.section-header h2 { display: flex; align-items: center; gap: 10px; }

.semester-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 4px 8px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.semester-badge.summer { background: var(--summer-light); color: var(--summer); }

.semester-health {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-left: 10px;
}

.semester-health.danger { background: var(--danger); }
.semester-health.warning { background: var(--warning); }
.semester-health.normal { background: #eab308; }
.semester-health.strong { background: var(--success); }

.semester-card.summer { border-left: 4px solid var(--summer); }

.semester-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.semester-import-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--accent-light);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.semester-import-btn:hover {
  background: var(--accent);
  color: white;
}

.semester-import-btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.course-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.course-item {
  display: grid;
  grid-template-columns: auto 1fr auto auto auto auto;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.course-item.disabled { opacity: 0.4; }
.course-item.repeat { border-left: 4px solid var(--warning); }
.course-item.internship { border-left: 4px solid var(--accent); }

.course-checkbox {
  width: 20px;
  height: 20px;
  accent-color: var(--accent);
  cursor: pointer;
}

.course-name-input {
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  min-width: 120px;
}

.course-name-input:focus {
  outline: none;
  background: var(--bg-secondary);
  box-shadow: 0 0 0 2px var(--accent-light);
}

.course-name-input::placeholder { color: var(--text-muted); }

.credit-input {
  width: 56px;
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-align: center;
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.credit-input:focus { outline: none; border-color: var(--accent); }

.grade-select {
  padding: 8px 32px 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.875rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  min-width: 72px;
}

.grade-select:focus { outline: none; border-color: var(--accent); }

.course-actions { display: flex; gap: 6px; }

.action-btn {
  padding: 6px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-muted);
}

.action-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.action-btn.active { background: var(--warning-light); border-color: var(--warning); color: var(--warning); }
.action-btn.active.intern { background: var(--accent-light); border-color: var(--accent); color: var(--accent); }

.add-course-row { margin-top: 14px; }

.btn-add-course {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  background: transparent;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--text-muted);
  cursor: pointer;
  width: 100%;
  transition: all var(--transition);
}

.btn-add-course:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.stats-row {
  display: flex;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border-light);
}

.stat { text-align: center; flex: 1; }
.stat .stat-label { font-size: 0.6875rem; margin-bottom: 4px; }
.stat .stat-value { font-size: 1.125rem; }
.stat.primary .stat-value { color: var(--accent); }
.stat.warning .stat-value { color: var(--warning); }
.stat.danger .stat-value { color: var(--danger); }
.stat.strong .stat-value { color: var(--success); }

.add-semester-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 28px 0;
}

.btn-add-semester {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: var(--bg-secondary);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  font-family: inherit;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-add-semester:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.btn-add-semester.summer:hover {
  border-color: var(--summer);
  color: var(--summer);
  background: var(--summer-light);
}

.btn-add-semester.duplicate:hover {
  border-color: var(--success);
  color: var(--success);
  background: var(--success-light);
}

.help-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 28px;
}

.help-section h3 {
  margin-bottom: 18px;
  color: var(--text-primary);
}

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

.help-item strong {
  display: block;
  font-size: 0.9375rem;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.help-item p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.export-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}

.export-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 20px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition);
}

.export-btn:hover { background: var(--bg-hover); border-color: var(--accent); }

.export-icon {
  font-size: 1rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
}

.export-preview {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.6;
  white-space: pre-wrap;
  max-height: 180px;
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.export-preview::-webkit-scrollbar { display: none; }

.degree-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.degree-grid .form-group { margin-bottom: 0; }

.contribute-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 28px;
  text-align: center;
}

.contribute-section h3 {
  margin-bottom: 10px;
  color: var(--text-primary);
}

.contribute-section p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: 18px;
}

.contribute-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.contribute-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition);
}

.contribute-link:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.contribute-link svg {
  width: 18px;
  height: 18px;
}

.app-footer {
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid var(--border-light);
  margin-top: 40px;
}

.footer-brand {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-brand .brand-name {
  color: var(--accent);
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-bottom: 16px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all 0.25s ease;
}

.social-link svg {
  width: 20px;
  height: 20px;
}

.social-link:hover {
  transform: translateY(-2px);
}

.social-link.linkedin:hover { color: var(--linkedin); }
.social-link.x-twitter:hover { color: #000; }
.social-link.instagram:hover { color: var(--instagram); }

[data-theme="dark"] .social-link.x-twitter:hover { color: #fff; }
.social-link.youtube:hover { color: var(--youtube); }
.social-link.github:hover { color: var(--github); }

.footer-note {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}


/* Tablet breakpoint - 900px */
@media (max-width: 900px) {
  .dashboard {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  
  .tools-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  
  .add-semester-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}

/* Medium screens - 768px */
@media (max-width: 768px) {
  .container { padding: 18px; }
  h1 { font-size: 1.375rem; }
  h2 { font-size: 1.0625rem; }
  
  .main-header {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }
  
  .header-left {
    text-align: center;
  }
  
  .brand {
    justify-content: center;
  }
  
  .brand-logo {
    width: 36px;
    height: 36px;
  }
  
  .header-actions {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .whatif-toggle { display: none; }
  
  .stat-value { font-size: 1.375rem; }
  .stat-card { padding: 14px; }
  
  .tool-btn { padding: 14px; }
  .tool-label { font-size: 0.875rem; }
  
  .course-item {
    grid-template-columns: auto 1fr auto auto;
    gap: 8px;
    padding: 12px;
  }
  
  .course-name-input {
    min-width: 100px;
    font-size: 0.875rem;
  }
  
  .course-actions {
    grid-column: span 4;
    margin-top: 8px;
    justify-content: flex-start;
  }
  
  .target-inputs {
    flex-wrap: wrap;
    gap: 12px;
  }
  
  .target-inputs .form-group.inline {
    flex: 1 1 100px;
    min-width: 90px;
  }
  
  .target-calc-btn {
    flex: 1 1 100%;
    height: 46px;
    margin-top: 4px;
  }
  
  .prereq-grid { grid-template-columns: 1fr; }
  .recovery-grid { grid-template-columns: 1fr; }
  .degree-grid { grid-template-columns: 1fr; }
  .help-grid { grid-template-columns: 1fr; }
  
  .add-semester-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  
  .section-header h2 {
    flex-wrap: wrap;
    gap: 8px;
    width: 100%;
  }
  
  .section-header h2 .course-name-input {
    width: 100%;
    min-width: unset !important;
    max-width: 100%;
  }
  
  .semester-actions {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
  }
  
  .contribute-links {
    flex-direction: column;
    align-items: center;
  }
  
  .contribute-link {
    width: 100%;
    justify-content: center;
    max-width: 280px;
  }
  
  .modal-content {
    max-width: 95%;
    margin: 10px;
  }
  
  .chart-tabs {
    flex-wrap: wrap;
    gap: 6px;
  }
  
  .chart-tab {
    padding: 6px 12px;
    font-size: 0.75rem;
  }
}

/* Small tablet breakpoint - 640px */
@media (max-width: 640px) {
  .course-item {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    padding: 16px;
    position: relative;
  }
  
  .course-checkbox {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
  }
  
  .course-name-input {
    flex: 1 1 150px;
    min-width: 120px;
    padding: 12px 14px;
    font-size: 0.9375rem;
  }
  
  .credit-input {
    flex: 0 0 65px;
    padding: 12px;
    font-size: 0.9375rem;
  }
  
  .grade-select {
    flex: 0 0 85px;
    padding: 12px 32px 12px 12px;
    font-size: 0.9375rem;
  }
  
  .course-actions {
    flex: 1 1 100%;
    justify-content: flex-start;
    margin-top: 4px;
    gap: 10px;
  }
  
  .action-btn {
    padding: 10px 16px;
    font-size: 0.875rem;
  }
  
  .btn-icon.danger {
    margin-left: auto;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
  }
}

/* Small screens - 480px - EXPANDED for better mobile readability */
@media (max-width: 480px) {
  .container { padding: 16px; }
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.125rem; }
  
  .main-header {
    gap: 14px;
    padding-bottom: 20px;
    margin-bottom: 24px;
  }
  
  .tagline {
    font-size: 0.9375rem;
  }
  
  .header-actions {
    gap: 10px;
  }
  
  .icon-btn {
    width: 44px;
    height: 44px;
  }
  
  .icon-btn svg {
    width: 22px;
    height: 22px;
  }
  
  .dashboard {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  
  .stat-card {
    padding: 16px 14px;
    min-height: 120px;
  }
  
  .stat-label {
    font-size: 0.75rem;
    margin-bottom: 6px;
  }
  
  .stat-value { font-size: 1.5rem; }
  
  .stat-sub {
    font-size: 0.8125rem;
  }
  
  .tools-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  
  .tool-btn {
    padding: 18px;
    flex-direction: row;
    align-items: center;
    gap: 14px;
  }
  
  .tool-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 0;
    margin-right: 0;
    flex-shrink: 0;
  }
  
  .tool-icon svg {
    width: 24px;
    height: 24px;
  }
  
  .tool-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    flex: 1;
    min-width: 0;
  }
  
  .tool-label {
    font-size: 1.0625rem;
    margin-bottom: 4px;
  }
  
  .tool-desc {
    font-size: 0.9375rem;
  }
  
  .course-item {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 18px;
    align-items: center;
  }
  
  .course-checkbox {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
  }
  
  .course-name-input {
    flex: 1 1 100%;
    font-size: 1.0625rem;
    min-width: auto;
    padding: 14px 16px;
    font-weight: 500;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    order: 1;
  }
  
  .credit-input {
    flex: 1 1 calc(50% - 6px);
    padding: 14px 16px;
    font-size: 1rem;
    text-align: center;
    order: 2;
  }
  
  .grade-select {
    flex: 1 1 calc(50% - 6px);
    min-width: auto;
    padding: 14px 36px 14px 16px;
    font-size: 1rem;
    order: 3;
  }
  
  .course-actions {
    flex: 1 1 100%;
    display: flex;
    gap: 10px;
    order: 4;
  }
  
  .action-btn {
    padding: 12px 18px;
    font-size: 0.9375rem;
    flex: 1;
  }
  
  .btn-icon.danger {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 36px;
    height: 36px;
  }
  
  .course-item {
    position: relative;
    padding-right: 56px;
  }
  
  .stats-row {
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 16px;
    padding-top: 16px;
  }
  
  .stat { 
    flex: 1 1 calc(33.33% - 10px);
    min-width: 80px;
  }
  
  .stat .stat-value {
    font-size: 1.125rem;
  }
  
  .target-inputs {
    flex-direction: column;
    gap: 16px;
  }
  
  .target-inputs .form-group.inline {
    flex: 1 1 100%;
    width: 100%;
  }
  
  .target-inputs .form-group.inline label {
    font-size: 1rem;
    margin-bottom: 8px;
  }
  
  .target-inputs .form-group.inline input,
  .target-inputs .form-group.inline select {
    width: 100%;
    height: 52px;
    font-size: 1rem;
    padding: 14px;
  }
  
  .target-calc-btn {
    width: 100%;
    min-height: 56px;
    height: auto;
    padding: 16px 24px;
    font-size: 1.0625rem;
    margin-top: 12px;
    font-weight: 600;
  }
  
  /* Prevent semester card overflow */
  .semester-card {
    overflow: hidden;
  }
  
  .semester-card .card {
    max-width: 100%;
  }
  
  .timeline-tile {
    min-width: 85px;
    padding: 14px;
  }
  
  .timeline-label {
    font-size: 0.6875rem;
  }
  
  .timeline-cgpa { font-size: 1.125rem; }
  
  .timeline-credits {
    font-size: 0.6875rem;
  }
  
  .timeline-connector {
    width: 16px;
  }
  
  .modal-content {
    max-width: 100%;
    margin: 12px;
    max-height: 92vh;
  }
  
  .modal-header {
    padding: 20px 20px 18px;
  }
  
  .modal-header h2 {
    font-size: 1.25rem;
    padding-right: 30px;
  }
  
  .modal-close {
    width: 40px;
    height: 40px;
    top: 18px;
    right: 18px;
  }
  
  .modal-body {
    padding: 20px;
  }
  
  .modal-actions {
    flex-direction: column;
    gap: 12px;
  }
  
  .modal-actions .btn-secondary,
  .modal-actions .btn-primary {
    width: 100%;
    height: 52px;
    font-size: 1rem;
  }
  
  .export-options { grid-template-columns: 1fr; }
  
  .card {
    padding: 20px;
    margin-bottom: 18px;
  }
  
  .section-header {
    margin-bottom: 18px;
  }
  
  .section-header h2 {
    font-size: 1.125rem;
  }
  
  .advice-box {
    padding: 20px;
    margin-bottom: 24px;
  }
  
  .advice-header {
    font-size: 1.0625rem;
    margin-bottom: 14px;
  }
  
  #adviceList li {
    font-size: 1rem;
    padding-left: 16px;
    margin-bottom: 10px;
    line-height: 1.6;
  }
  
  .help-section {
    padding: 22px;
    margin-bottom: 28px;
  }
  
  .help-item strong {
    font-size: 1rem;
    margin-bottom: 8px;
    display: block;
  }
  
  .help-item p {
    font-size: 0.9375rem;
    line-height: 1.6;
  }
  
  .contribute-section {
    padding: 24px;
  }
  
  .contribute-section h3 {
    font-size: 1.125rem;
  }
  
  .contribute-section p {
    font-size: 1rem;
    line-height: 1.6;
  }
  
  .contribute-link {
    padding: 14px 20px;
    font-size: 1rem;
  }
  
  .footer-social { gap: 20px; }
  .social-link svg { width: 22px; height: 22px; }
  
  .app-footer {
    padding: 36px 20px;
  }
  
  .footer-brand {
    font-size: 1.1875rem;
  }
  
  .footer-note {
    font-size: 0.875rem;
    line-height: 1.6;
  }
  
  .btn-add-semester {
    padding: 22px;
    font-size: 1.25rem !important;
  }
  
  .btn-add-course {
    padding: 16px 18px;
    font-size: 1rem;
  }
  
  .chart-container {
    padding: 18px;
  }
  
  #gpaChart {
    height: 150px;
  }
  
  .visualization-section .section-header {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  
  .chart-tabs {
    flex-wrap: nowrap;
  }
}

/* Extra small screens - 360px */
@media (max-width: 360px) {
  .container { 
    padding: 12px; 
    overflow-x: hidden;
  }
  
  h1 { font-size: 1.25rem; }
  
  .card {
    padding: 14px;
    overflow: hidden;
  }
  
  .dashboard {
    gap: 10px;
  }
  
  .stat-card {
    padding: 14px 12px;
    min-height: 110px;
  }
  
  .stat-value { font-size: 1.375rem; }
  
  .tools-row {
    gap: 10px;
  }
  
  .tool-btn {
    padding: 14px;
    gap: 12px;
  }
  
  .tool-icon {
    width: 42px;
    height: 42px;
  }
  
  .tool-label {
    font-size: 0.9375rem;
  }
  
  .tool-desc {
    font-size: 0.8125rem;
  }
  
  .target-calc-btn {
    min-height: 52px;
    padding: 14px 20px;
    font-size: 1rem;
  }
  
  .section-header h2 .course-name-input {
    font-size: 1rem !important;
  }
  
  .course-item {
    padding: 16px;
    padding-right: 50px;
  }
  
  .course-name-input {
    font-size: 1rem;
    padding: 12px 14px;
  }
  
  .credit-input {
    padding: 12px 14px;
    font-size: 0.9375rem;
  }
  
  .grade-select {
    padding: 12px 32px 12px 14px;
    font-size: 0.9375rem;
  }
  
  .action-btn {
    padding: 10px 14px;
    font-size: 0.875rem;
  }
  
  .btn-icon.danger {
    width: 32px;
    height: 32px;
    top: 12px;
    right: 12px;
  }
  
  .timeline-tile {
    min-width: 75px;
    padding: 12px;
  }
  
  .timeline-cgpa { font-size: 1rem; }
  
  .btn-add-semester {
    padding: 20px;
    font-size: 1.125rem !important;
  }
}

@media (hover: none) and (pointer: coarse) {
  .btn-text,
  .btn-icon,
  .action-btn,
  .icon-btn {
    min-height: 48px;
    min-width: 48px;
  }
  
  .course-checkbox {
    width: 24px;
    height: 24px;
  }
  
  .grade-select,
  .credit-input {
    min-height: 48px;
    font-size: 1rem;
  }
  
  .action-btn {
    padding: 10px 14px;
    font-size: 0.8125rem;
  }
  
  .btn-add-course {
    padding: 16px;
    font-size: 0.9375rem;
  }
}

/* Grading Scale Table */
.grading-scale-section {
  margin-top: 24px;
}

.grading-table-container {
  overflow-x: auto;
}

.grading-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.grading-table th,
.grading-table td {
  padding: 12px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.grading-table th {
  background: var(--bg-tertiary);
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.grading-table tbody tr {
  transition: background 0.15s ease;
}

.grading-table tbody tr:hover {
  background: var(--bg-tertiary);
}

.grading-table td:first-child {
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
}

.grading-table td:last-child {
  font-weight: 600;
  color: var(--primary);
}

@media (max-width: 480px) {
  .grading-table th,
  .grading-table td {
    padding: 10px 16px;
    font-size: 0.875rem;
  }
  
  .grading-table td:first-child {
    font-size: 0.8125rem;
  }
}

@media print {
  body { background: white; color: black; }
  
  .modal,
  .btn-add-course,
  .btn-add-semester,
  .header-actions,
  .icon-btn,
  .btn-icon,
  .action-btn,
  .tools-row,
  .whatif-toggle,
  .whatif-banner,
  .footer-social,
  .help-section { display: none !important; }
  
  .card { break-inside: avoid; border: 1px solid #ddd; }
}