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

html { font-size: 16px; scroll-behavior: smooth }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow: hidden;
  font-weight: 400;
}
h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
}
.hidden { display: none !important }

.app-container { display: flex; height: 100vh; overflow: hidden }
.main-wrapper { flex: 1; display: flex; flex-direction: column; overflow: hidden; background: var(--bg) }

.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 32px 40px;
  background: var(--bg);
  scrollbar-width: thin;
  scrollbar-color: rgba(203, 213, 225, .5) transparent;
}
.main-content::-webkit-scrollbar { width: 6px }
.main-content::-webkit-scrollbar-thumb { background: rgba(203, 213, 225, .5); border-radius: 4px }

.breadcrumb {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}
.view-title { font-size: 32px; margin-bottom: 10px; font-weight: 700; color: var(--text-primary) }
.view-subtitle { font-size: 15px; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.6; max-width: 720px }

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 28px;
  transition: all .3s var(--ease);
  box-shadow: var(--shadow-sm);
}
.card:hover { border-color: #cbd5e1; box-shadow: var(--shadow-md) }
.card-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px }
.card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  color: #fff;
}
.card-icon.blue { background: linear-gradient(135deg, var(--primary), #3b82f6) }
.card-icon.amber { background: linear-gradient(135deg, var(--accent), #fbbf24) }
.card-icon.green { background: linear-gradient(135deg, var(--success), #34d399) }
.card-icon.red { background: linear-gradient(135deg, var(--danger), #f87171) }
.card-title { font-size: 18px; font-weight: 600; color: var(--text-primary) }
.card-body { color: var(--text-secondary); line-height: 1.7; font-size: 16px }
.card-body h3 { color: var(--text-primary); margin: 24px 0 10px; font-size: 17px; font-weight: 600 }
.card-body ul { padding-left: 0; margin: 12px 0; list-style: none }
.card-body ul li { margin: 8px 0; padding-left: 22px; position: relative; color: var(--text-secondary); line-height: 1.7 }
.card-body ul li::before { content: ''; position: absolute; left: 0; top: 11px; width: 6px; height: 6px; border-radius: 2px; background: var(--primary) }
.card-body ol { padding-left: 20px; margin: 12px 0 }
.card-body ol li { margin: 8px 0; color: var(--text-secondary); line-height: 1.7 }
.card-body p { margin: 10px 0; line-height: 1.7 }
.card-body em { color: var(--text-muted); font-style: italic }

.hbox { padding: 16px 20px; border-radius: var(--radius-sm); margin: 18px 0; border-left: 4px solid; line-height: 1.7 }
.hbox.blue { background: rgba(37, 99, 235, .06); border-color: var(--primary) }
.hbox.amber { background: #fef3c7; border-color: var(--accent); color: var(--text-secondary) }
.hbox.green { background: rgba(16, 185, 129, .06); border-color: var(--success) }
.hbox strong { color: var(--text-primary) }
.hbox ul { padding-left: 20px; margin-top: 6px }
.hbox li { padding-left: 0 }
.hbox li::before { display: none }

.btn {
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s var(--ease);
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
}
.btn-primary { background: var(--primary); color: #fff }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(37, 99, 235, .3) }
.btn-success { background: var(--success); color: #fff }
.btn-success:hover { background: #059669; transform: translateY(-2px); box-shadow: 0 4px 16px rgba(16, 185, 129, .3) }
.btn-secondary { background: #f1f5f9; color: var(--text-primary); border: 1px solid var(--card-border) }
.btn-secondary:hover { background: #e2e8f0; transform: translateY(-1px) }
.btn-danger { background: var(--danger); color: #fff }
.btn:disabled { opacity: .4; cursor: not-allowed; transform: none !important; box-shadow: none !important }
.button-row { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap }

.btn { transition: all .2s var(--ease); cursor: pointer }
.btn:hover:not(:disabled) { transform: translateY(-1px) }
.btn:active:not(:disabled) { transform: scale(.98); transition-duration: .1s }
[data-scenario], .home-next-card, .home-kpi, .home-badge-card, .home-lb-row, .module-tab, .nav-item, .resume-banner, .rp-card { cursor: pointer }

.video-section { margin-bottom: 32px }
.video-section h3 { font-family: 'Space Grotesk', sans-serif; font-size: 18px; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; color: #0f172a }
.video-section h3 i { color: #2563eb; font-size: 22px }
.video-container { position: relative; width: 100%; aspect-ratio: 16/9; border-radius: 16px; overflow: hidden; box-shadow: 0 4px 16px rgba(0, 0, 0, .08); background: #f1f5f9 }
.video-container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none }

.exercise-label { font-size: 15px; font-weight: 600; margin-bottom: 10px; color: var(--text-primary) }
.exercise-textarea { width: 100%; min-height: 130px; background: var(--input-bg); border: 2px solid var(--input-border); border-radius: var(--radius-sm); padding: 14px; color: var(--text-primary); font-family: 'Inter', sans-serif; font-size: 14px; resize: vertical; transition: all .2s var(--ease) }
.exercise-textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, .1) }
.exercise-textarea::placeholder { color: var(--text-muted) }

@keyframes fadeInUp { from { opacity: 0; transform: translateY(12px) } to { opacity: 1; transform: translateY(0) } }
.fade-in { animation: fadeInUp .4s var(--ease) both }

.fade-enter { animation: fadeEnter .4s var(--ease) both }
@keyframes fadeEnter { from { opacity: 0; transform: translateY(10px) } to { opacity: 1; transform: translateY(0) } }

@keyframes pulseIn { 0% { transform: scale(.95); opacity: .7 } 50% { transform: scale(1.03) } 100% { transform: scale(1); opacity: 1 } }
.pulse-in { animation: pulseIn .4s var(--ease) }

@keyframes popIn { 0% { transform: scale(0) rotate(-8deg); opacity: 0 } 60% { transform: scale(1.15) rotate(2deg); opacity: 1 } 100% { transform: scale(1) rotate(0); opacity: 1 } }
.pop-in { animation: popIn .5s cubic-bezier(.17, .67, .29, 1.5) }

@keyframes shake { 0%, 100% { transform: translateX(0) } 10%, 30%, 50%, 70%, 90% { transform: translateX(-6px) } 20%, 40%, 60%, 80% { transform: translateX(6px) } }
.shake { animation: shake .5s var(--ease) }

@media (max-width: 768px) {
  .main-wrapper { width: 100% }
  .main-content { padding: 20px 14px }
  .view-title { font-size: 24px }
  .view-subtitle { font-size: 14px; margin-bottom: 12px }
  .card { padding: 18px; margin-bottom: 20px }
  .card-body { font-size: 14px }
  .card-body h3 { font-size: 15px; margin: 18px 0 8px }
  .card-body ul li, .card-body ol li { font-size: 14px; line-height: 1.6 }
  .card-body p { line-height: 1.6 }
  .hbox { padding: 12px 14px; margin: 12px 0 }
  .button-row { gap: 8px; margin-top: 20px }
  .btn { padding: 10px 16px; font-size: 13px }
  .exercise-textarea { min-height: 100px; padding: 12px; font-size: 13px }
  .video-container { border-radius: 10px }
}
@media (max-width: 480px) {
  .main-content { padding: 14px 10px }
  .view-title { font-size: 20px }
  .card { padding: 14px; margin-bottom: 16px }
  .btn { padding: 9px 14px; font-size: 12px; gap: 6px }
  .button-row { flex-direction: column }
  .button-row .btn { width: 100%; justify-content: center }
}