/* =========================================================
   TRITE Modern UI — Bootstrap 5 Overrides
   Drop-in: include *after* bootstrap.min.css
   ========================================================= */

:root {
  /* Brand palette */
  --brand-primary: #345CFF;
  --brand-secondary: #0ACF83;
  --brand-accent: #8B5CF6;

  /* Neutral scale (lighter) */
  --gray-900: #1e293b;
  --gray-800: #334155;
  --gray-700: #475569;
  --gray-600: #64748b;
  --gray-500: #94a3b8;
  --gray-400: #cbd5e1;
  --gray-300: #e2e8f0;
  --gray-200: #f1f5f9;
  --gray-100: #f8fafc;
  --white:     #ffffff;

  /* Surfaces (lighter) */
  --surface: #f1f5f9;
  --panel: rgba(255, 255, 255, 0.85);
  --panel-strong: rgba(255, 255, 255, 0.95);
  --backdrop: rgba(148, 163, 184, 0.35);

  /* Shadows (slightly softer for light UI) */
  --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-focus: 0 0 0 3px rgba(52, 92, 255, 0.25);

  /* Radii */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  /* Transitions */
  --ease-std: cubic-bezier(.22,.61,.36,1);
  --speed-fast: 120ms;
  --speed-med: 220ms;
  --speed-slow: 400ms;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, 'Apple Color Emoji','Segoe UI Emoji', 'Segoe UI Symbol';
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Gradients (softened / lighter) */
  --grad-hero: radial-gradient(1200px 600px at 10% -10%, rgba(52,92,255,0.15), transparent 60%),
               radial-gradient(900px 400px at 90% -5%, rgba(138, 92, 246, 0.12), transparent 60%),
               linear-gradient(180deg, #f8fafc, #f1f5f9 55%, #e2e8f0);

  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: 1px solid rgba(0, 0, 0, 0.06);

  /* Content widths */
  --content-max: 1200px;
}

/* Light mode baseline */
html {
  font-family: var(--font-sans);
  scroll-behavior: smooth;
}

body {
  background: var(--grad-hero), var(--surface);
  color: var(--gray-800);
  line-height: 1.6;
}

/* Container max-width refinement */
.container,
.container-lg,
.container-xl,
.container-xxl {
  max-width: var(--content-max);
}

/* Typography tuning (adjusted for light background) */
.h1, .h2, .h3, h1, h2, h3 {
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--gray-900);
}
.h4, .h5, .h6, h4, h5, h6 {
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--gray-800);
}
p, .lead, .text-muted {
  color: var(--gray-700);
}

/* ====== Core Components Overrides ====== */

/* Buttons */
.btn {
  border: 0;
  border-radius: var(--radius-pill);
  padding: 0.6rem 1.05rem;
  font-weight: 600;
  transition: transform var(--speed-fast) var(--ease-std), box-shadow var(--speed-fast) var(--ease-std), opacity var(--speed-fast) var(--ease-std), background var(--speed-fast) var(--ease-std);
  box-shadow: var(--shadow-soft);
  will-change: transform;
}
.btn:active { transform: translateY(1px) scale(0.99); }

.btn-primary {
  background-image: linear-gradient(180deg, #4c6fff, #345CFF);
}
.btn-primary:hover { filter: brightness(1.03); }
.btn-outline-primary {
  background: transparent;
  border: 1px solid rgba(52, 92, 255, 0.5);
  color: #2b3b52;
}
.btn-outline-primary:hover {
  background: rgba(52, 92, 255, 0.08);
  color: #0b0f19;
}

/* Card / Panel Styling */
.card {
  background: var(--glass-bg);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
}
.card .card-header {
  background: linear-gradient(180deg, rgba(255,255,255,0.9), rgba(255,255,255,0.7));
  border-bottom: var(--glass-border);
}
.card .card-title { color: var(--gray-900); }
.card .card-subtitle, .card .text-muted { color: var(--gray-600); }

/* Navbar (restore Bootstrap behavior; keep modern link colors/hover) */
/* No custom background/blur here — .bg-body-tertiary controls appearance */
.navbar .nav-link {
  color: var(--gray-800);
  font-weight: 600;
  transition: opacity var(--speed-fast) var(--ease-std);
}
.navbar .nav-link:hover { opacity: 0.85; }

/* Forms */
.form-control, .form-select {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 0, 0, 0.08);
  color: var(--gray-800);
  border-radius: var(--radius-md);
  transition: box-shadow var(--speed-fast) var(--ease-std), background var(--speed-fast) var(--ease-std);
}
.form-control::placeholder { color: var(--gray-500); }
.form-control:focus, .form-select:focus {
  outline: none;
  box-shadow: var(--shadow-focus);
  background: rgba(255, 255, 255, 1);
}
.input-group .btn { border-radius: var(--radius-pill); }

/* Badges / Pills */
.badge {
  border-radius: var(--radius-pill);
  padding: 0.45rem 0.7rem;
  font-weight: 700;
}
.text-bg-light {
  background: rgba(0, 0, 0, 0.06) !important;
  color: var(--gray-800) !important;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

/* Tables */
.table {
  color: var(--gray-800);
  --bs-table-bg: rgba(0,0,0,0.02);
  --bs-table-striped-bg: rgba(0,0,0,0.04);
  --bs-table-hover-bg: rgba(0,0,0,0.06);
  border-color: rgba(0,0,0,0.08);
}
.table thead th {
  color: var(--gray-900);
  letter-spacing: 0.02em;
}

/* Alerts */
.alert {
  border-radius: var(--radius-md);
  border: 1px solid rgba(0,0,0,0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* Modals */
.modal-content {
  background: var(--glass-bg);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.modal-backdrop.show {
  background-color: var(--backdrop);
  backdrop-filter: blur(2px);
}

/* Offcanvas (restore default behavior — no custom blur/gradient) */
/* Remove custom .offcanvas overrides to use Bootstrap defaults */

/* Progress */
.progress {
  background: rgba(0,0,0,0.06);
  border-radius: var(--radius-pill);
  height: 10px;
}
.progress-bar {
  background-image: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
}

/* Switch/toggles & checkboxes */
.form-check-input:focus { box-shadow: var(--shadow-focus); }
.form-check-input:checked {
  background-image: linear-gradient(180deg, #4c6fff, #345CFF);
  border: 0;
}

/* Micro-interactions */
.hover-raise {
  transition: transform var(--speed-med) var(--ease-std), box-shadow var(--speed-med) var(--ease-std);
}
.hover-raise:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

.fade-in-up {
  opacity: 0;
  transform: translateY(6px);
  animation: fadeInUp var(--speed-slow) var(--ease-std) forwards;
}
@keyframes fadeInUp {
  to { opacity: 1; transform: translateY(0); }
}

/* Utility: section wrappers */
.section {
  padding: clamp(2rem, 3vw, 4rem) 0;
}
.section .section-title {
  margin-bottom: 1rem;
}
.section .section-subtitle {
  color: var(--gray-600);
  margin-bottom: 2rem;
}

/* Hero */
.hero {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: clamp(2rem, 3vw, 4rem);
  background:
    radial-gradient(800px 300px at 20% -10%, rgba(52,92,255,0.12), transparent 60%),
    radial-gradient(700px 240px at 110% 0%, rgba(10,207,131,0.10), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,0.85), rgba(255,255,255,0.7));
  border: var(--glass-border);
  backdrop-filter: blur(10px);
}
.hero .display-5, .hero .display-6 { color: var(--gray-900); }
.hero .lead { color: var(--gray-700); }
.hero .cta { gap: .75rem; }

/* Footer */
.footer {
  color: var(--gray-600);
  border-top: 1px solid rgba(0,0,0,0.08);
  background: linear-gradient(180deg, rgba(248,250,252,0.6), rgba(241,245,249,0.4));
}

/* Code/Pre */
code, pre { font-family: var(--font-mono); }

/* ===== Dark mode detection (optional) ===== */
@media (prefers-color-scheme: light) {
  body {
    background: linear-gradient(180deg, #f8fbff, #eef4ff 55%, #eaf0ff);
    color: #213247;
  }
  .navbar {
    background: rgba(255,255,255,0.8);
    border-bottom-color: rgba(0,0,0,0.06);
  }
  .card, .modal-content {
    background: rgba(255,255,255,0.9);
    border-color: rgba(0,0,0,0.06);
    color: #213247;
  }
  .text-bg-light {
    background: rgba(0,0,0,0.06) !important;
    color: #213247 !important;
    border-color: rgba(0,0,0,0.08);
  }
  .table {
    --bs-table-bg: rgba(0,0,0,0.02);
    --bs-table-striped-bg: rgba(0,0,0,0.04);
    --bs-table-hover-bg: rgba(0,0,0,0.06);
    color: #213247;
  }
  .form-control, .form-select {
    background: rgba(255,255,255,0.96);
    color: #213247;
    border-color: rgba(0,0,0,0.08);
  }
}