/* ============================================================
   TrustDesk Design System
   trustdesk.in
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── TOKENS ──────────────────────────────────────────────── */
:root {
  /* Brand */
  --blue-900: #0d2a7a;
  --blue-800: #1a3db5;
  --blue-700: #1f4fd8;
  --blue-600: #2f60f0;
  --blue-500: #4a78f5;
  --blue-100: #dce8ff;
  --blue-50:  #eef3ff;

  --green-900: #0a4d21;
  --green-700: #16a34a;
  --green-600: #22c55e;
  --green-100: #d1fae5;
  --green-50:  #f0fdf4;

  /* Neutrals */
  --gray-950: #08090c;
  --gray-900: #0f1117;
  --gray-800: #1a1d27;
  --gray-700: #2d3142;
  --gray-600: #3f4460;
  --gray-500: #6b7194;
  --gray-400: #9599b3;
  --gray-300: #c4c8dd;
  --gray-200: #e0e3ef;
  --gray-100: #eef0f8;
  --gray-50:  #f6f7fb;
  --white:    #ffffff;

  /* Semantic */
  --text-primary:   var(--gray-900);
  --text-secondary: var(--gray-500);
  --text-muted:     var(--gray-400);
  --bg-page:        var(--white);
  --bg-subtle:      var(--gray-50);
  --bg-card:        var(--white);
  --border:         var(--gray-200);
  --border-strong:  var(--gray-300);

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(15,17,23,0.04);
  --shadow-sm: 0 2px 6px rgba(15,17,23,0.06), 0 1px 2px rgba(15,17,23,0.04);
  --shadow-md: 0 4px 16px rgba(15,17,23,0.08), 0 2px 6px rgba(15,17,23,0.04);
  --shadow-lg: 0 12px 36px rgba(15,17,23,0.1), 0 4px 12px rgba(15,17,23,0.05);
  --shadow-xl: 0 24px 60px rgba(15,17,23,0.12), 0 8px 20px rgba(15,17,23,0.06);
  --shadow-blue: 0 8px 30px rgba(31,79,216,0.18);

  /* Radii */
  --r-xs: 4px;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-full: 9999px;

  /* Typography */
  --font-sans: 'Sora', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-8: 32px; --space-10: 40px;
  --space-12: 48px; --space-16: 64px; --space-20: 80px; --space-24: 96px;

  /* Transitions */
  --t-fast:   150ms ease;
  --t-base:   250ms ease;
  --t-slow:   400ms cubic-bezier(0.16, 1, 0.3, 1);
  --t-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --max-w: 1180px;
  --nav-h: 68px;
}

/* ── RESET ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-page);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
input, textarea { font-family: inherit; }

/* ── TYPOGRAPHY SCALE ────────────────────────────────────── */
.t-display {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
}
.t-h1 {
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.15;
}
.t-h2 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.25;
}
.t-h3 {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.35;
}
.t-body  { font-size: 1rem;   line-height: 1.7; }
.t-small { font-size: 0.875rem; line-height: 1.6; }
.t-xs    { font-size: 0.75rem;  line-height: 1.5; }
.t-mono  { font-family: var(--font-mono); }

/* ── LAYOUT HELPERS ──────────────────────────────────────── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--space-6); }
.section   { padding: var(--space-24) var(--space-6); }
.section-sm { padding: var(--space-16) var(--space-6); }

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.65rem 1.4rem;
  border-radius: var(--r-sm);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: all var(--t-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.12);
  opacity: 0;
  transition: opacity var(--t-fast);
}
.btn:hover::after { opacity: 1; }

.btn-primary {
  background: var(--blue-700);
  color: var(--white);
  box-shadow: 0 2px 8px rgba(31,79,216,0.25);
}
.btn-primary:hover {
  background: var(--blue-800);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(31,79,216,0.3);
}
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  color: var(--gray-700);
  border: 1.5px solid var(--border-strong);
}
.btn-outline:hover {
  border-color: var(--blue-700);
  color: var(--blue-700);
  transform: translateY(-1px);
}

.btn-green {
  background: var(--green-700);
  color: var(--white);
  box-shadow: 0 2px 8px rgba(22,163,74,0.2);
}
.btn-green:hover {
  background: var(--green-900);
  transform: translateY(-1px);
}

.btn-ghost {
  background: var(--blue-50);
  color: var(--blue-700);
  border: 1.5px solid var(--blue-100);
}
.btn-ghost:hover { background: var(--blue-100); }

.btn-sm { padding: 0.45rem 1rem; font-size: 0.82rem; }
.btn-lg { padding: 0.85rem 1.8rem; font-size: 1rem; }

/* ── BADGES ──────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge-blue   { background: var(--blue-50);  color: var(--blue-700); border: 1px solid var(--blue-100); }
.badge-green  { background: var(--green-50); color: var(--green-700); border: 1px solid var(--green-100); }
.badge-gray   { background: var(--gray-100); color: var(--gray-600); border: 1px solid var(--gray-200); }

/* ── CARDS ───────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--t-base), transform var(--t-base), border-color var(--t-base);
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: var(--gray-300);
}

/* ── DIVIDERS ────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-8) 0;
}

/* ── SECTION HEADER ──────────────────────────────────────── */
.section-header { margin-bottom: var(--space-12); }
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-700);
  margin-bottom: var(--space-3);
}
.section-eyebrow::before {
  content: '';
  display: block;
  width: 18px;
  height: 2px;
  background: var(--blue-700);
  border-radius: 2px;
}
.section-title { color: var(--text-primary); }
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-top: var(--space-4);
}

/* ── UTILITY ─────────────────────────────────────────────── */
.text-blue  { color: var(--blue-700); }
.text-green { color: var(--green-700); }
.text-muted { color: var(--text-secondary); }
.fw-bold    { font-weight: 700; }
.fw-semi    { font-weight: 600; }
.text-center { text-align: center; }
.flex        { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2  { gap: var(--space-2); }
.gap-3  { gap: var(--space-3); }
.gap-4  { gap: var(--space-4); }
.mt-2   { margin-top: var(--space-2); }
.mt-4   { margin-top: var(--space-4); }
.mt-6   { margin-top: var(--space-6); }
.mt-8   { margin-top: var(--space-8); }

/* ── SCROLL ANIMATIONS ───────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.16,1,0.3,1), transform 0.65s cubic-bezier(0.16,1,0.3,1);
}
.reveal.revealed {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }
.reveal-delay-5 { transition-delay: 0.40s; }
.reveal-delay-6 { transition-delay: 0.48s; }

/* ── LOGO ────────────────────────────────────────────────── */
.logo-text {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}
.logo-trust { color: var(--blue-700); }
.logo-desk  { color: var(--green-700); }

/* ── RESPONSIVE GRID ─────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .section { padding: var(--space-16) var(--space-4); }
  .section-sm { padding: var(--space-12) var(--space-4); }
}