/* =============================================
   SolutionLab LMS - Custom Styles
   ============================================= */

:root {
  --surface: #f5f7fb;
  --text-900: #0f172a;
  --brand-primary: #157b86;
  --brand-secondary: #1fb6b6;
  --brand-accent: #7fe1d6;
}

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

body {
  margin: 0;
  font-family: 'Segoe UI', 'Open Sans', 'Poppins', system-ui, -apple-system, sans-serif;
  background-color: var(--surface);
  color: var(--text-900);
}

/* Animations */
@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes pulse-ring {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

.animate-fade-in-up { animation: fade-in-up 0.6s ease-out both; }
.animate-fade-in    { animation: fade-in 0.8s ease-out both; }
.animate-pulse-custom { animation: pulse-ring 2s cubic-bezier(0.4,0,0.6,1) infinite; }

/* Section kicker label */
.section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--brand-primary);
}

/* Badge brand */
.badge-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(30,77,77,0.12);
  color: #c8ebf1;
}

/* Scroll hide */
.scroll-hide::-webkit-scrollbar { display: none; }
.scroll-hide { -ms-overflow-style: none; scrollbar-width: none; }

/* Line clamp utilities */
.line-clamp-2 {
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

/* Lucide icon sizing via class - Tailwind arbitrary h-X/w-X handles sizing,
   but we ensure SVG inherits from wrapping element */
[data-lucide] svg,
i[data-lucide] { display: inline-block; vertical-align: middle; }

/* Toggle switch */
.toggle-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}
.toggle-switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle-track {
  width: 44px; height: 24px;
  background: #cbd5e1;
  border-radius: 12px;
  transition: background 0.2s;
  position: relative;
}
.toggle-track::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 20px; height: 20px;
  background: white;
  border-radius: 50%;
  transition: transform 0.2s;
}
.toggle-switch input:checked + .toggle-track { background: #1fb6b6; }
.toggle-switch input:checked + .toggle-track::after { transform: translateX(20px); }

/* Progress bar base */
.progress-bar-track {
  width: 100%; height: 6px;
  background: #e2e8f0;
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #1fb6b6, #157b86);
  border-radius: 999px;
  transition: width 0.5s ease;
}

/* Mini bar chart */
.mini-chart { display: flex; align-items: flex-end; gap: 4px; height: 48px; }
.mini-chart-bar {
  flex: 1;
  background: linear-gradient(to top, #157b86, #1fb6b6);
  border-radius: 3px 3px 0 0;
  min-height: 4px;
  transition: height 0.3s ease;
}

/* Card hover glow */
.card-hover {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(21,123,134,0.15);
  border-color: #1fb6b6;
}

/* Nav active indicator */
.nav-active {
  background: linear-gradient(to right, rgba(31,182,182,0.1), rgba(42,133,139,0.1));
  color: #1fb6b6;
}

/* Dropdown */
.dropdown-menu {
  display: none;
  position: absolute;
  z-index: 50;
}
.dropdown-menu.open { display: block; }

/* Sticky behavior for sidebars */
@media (min-width: 1024px) {
  .sidebar-sticky { position: sticky; top: 5rem; }
}

/* Backdrop blur for Safari */
@supports not (backdrop-filter: blur(8px)) {
  .backdrop-blur-xl { background: rgba(255,255,255,0.95); }
  .backdrop-blur-sm { background: rgba(255,255,255,0.9); }
  .backdrop-blur-md { background: rgba(255,255,255,0.92); }
}