/* IVENTRO — globals.css
 * Design tokens, resets, utility classes. Tailwind-style naming.
 */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700&family=Geist+Mono:wght@400;500&family=Instrument+Serif:ital@0;1&family=Inter+Tight:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Colors — Dark (default) */
  --bg: oklch(0.16 0.008 250);
  --bg-deep: oklch(0.12 0.01 250);
  --surface: oklch(0.20 0.009 250);
  --surface-elevated: oklch(0.235 0.01 250);
  --fg: oklch(0.96 0.005 250);
  --fg-muted: oklch(0.72 0.01 250);
  --fg-subtle: oklch(0.52 0.01 250);
  --border: oklch(0.28 0.01 250);
  --border-strong: oklch(0.36 0.01 250);

  --primary: oklch(0.81 0.14 156);
  --primary-ink: oklch(0.23 0.03 156);
  --primary-glow: oklch(0.81 0.14 156 / 0.35);

  --accent: oklch(0.72 0.15 190);
  --success: oklch(0.72 0.17 152);
  --warning: oklch(0.82 0.16 85);
  --danger: oklch(0.66 0.22 27);

  /* Type */
  --font-sans: 'Geist', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, monospace;
  --font-display: 'Geist', ui-sans-serif, sans-serif;

  --text-xs: clamp(11px, 0.72rem, 12px);
  --text-sm: clamp(13px, 0.86rem, 14px);
  --text-base: clamp(15px, 1rem, 16px);
  --text-lg: clamp(17px, 1.125rem, 18px);
  --text-xl: clamp(20px, 1.4rem, 22px);
  --text-2xl: clamp(26px, 1.8rem, 30px);
  --text-3xl: clamp(34px, 2.4rem, 42px);
  --text-4xl: clamp(46px, 3.2rem, 60px);
  --text-5xl: clamp(64px, 4.6rem, 88px);
  --text-6xl: clamp(84px, 6.2rem, 124px);

  /* Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* Shadow */
  --shadow-low: 0 1px 2px oklch(0 0 0 / 0.3), 0 0 0 0.5px oklch(1 0 0 / 0.04) inset;
  --shadow-mid: 0 8px 24px -8px oklch(0 0 0 / 0.4), 0 0 0 0.5px oklch(1 0 0 / 0.06) inset;
  --shadow-high: 0 24px 60px -20px oklch(0 0 0 / 0.6), 0 0 0 0.5px oklch(1 0 0 / 0.08) inset;
  --shadow-glow: 0 0 40px -8px var(--primary-glow);

  /* Motion */
  --dur-120: 120ms;
  --dur-200: 200ms;
  --dur-320: 320ms;
  --dur-600: 600ms;
  --dur-1200: 1200ms;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

html[data-theme='light'] {
  --bg: oklch(0.985 0.003 250);
  --bg-deep: oklch(0.96 0.005 250);
  --surface: oklch(1 0 0);
  --surface-elevated: oklch(1 0 0);
  --fg: oklch(0.18 0.01 250);
  --fg-muted: oklch(0.42 0.01 250);
  --fg-subtle: oklch(0.62 0.008 250);
  --border: oklch(0.90 0.005 250);
  --border-strong: oklch(0.78 0.008 250);
  --primary-ink: oklch(0.23 0.03 156);
  --shadow-low: 0 1px 2px oklch(0 0 0 / 0.06), 0 0 0 0.5px oklch(0 0 0 / 0.04) inset;
  --shadow-mid: 0 8px 24px -8px oklch(0 0 0 / 0.12), 0 0 0 0.5px oklch(0 0 0 / 0.04) inset;
  --shadow-high: 0 24px 60px -20px oklch(0 0 0 / 0.18), 0 0 0 0.5px oklch(0 0 0 / 0.06) inset;
}

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

html,
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  font-feature-settings: 'ss01', 'cv11';
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  font-size: var(--text-base);
  line-height: 1.55;
  letter-spacing: -0.005em;
}

a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

::selection {
  background: var(--primary);
  color: var(--primary-ink);
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.mono {
  font-family: var(--font-mono);
  font-feature-settings: 'ss02', 'zero';
  font-size: 0.88em;
  letter-spacing: -0.005em;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 40px);
}

/* Eyebrow / Kicker */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary-glow);
}

/* Hairline */
.hairline {
  border: 0;
  height: 1px;
  background: var(--border);
}

/* Dotted grid background */
.dots {
  background-image: radial-gradient(circle at center, var(--border) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  height: 40px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: -0.005em;
  transition: transform var(--dur-120) var(--ease-out), background var(--dur-200) var(--ease-out), border-color var(--dur-200) var(--ease-out);
  border: 0.5px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: var(--primary-ink);
  font-weight: 600;
}
.btn-primary:hover {
  box-shadow: var(--shadow-glow);
}
.btn-secondary {
  background: var(--surface);
  color: var(--fg);
  border-color: var(--border);
}
.btn-secondary:hover {
  border-color: var(--border-strong);
  background: var(--surface-elevated);
}
.btn-ghost {
  color: var(--fg-muted);
}
.btn-ghost:hover {
  color: var(--fg);
}
.btn-lg {
  height: 48px;
  padding: 0 20px;
  font-size: var(--text-base);
}

/* Cards */
.card {
  background: var(--surface);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--dur-200) var(--ease-out), background var(--dur-200) var(--ease-out);
}
.card:hover {
  border-color: var(--border-strong);
}

/* Scroll progress */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--primary);
  z-index: 100;
  transition: width 120ms linear;
  box-shadow: 0 0 8px var(--primary-glow);
}

/* Mesh */
.mesh {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}
.mesh::before {
  content: '';
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(40% 40% at 20% 30%, var(--primary-glow), transparent 60%),
    radial-gradient(35% 35% at 80% 20%, oklch(0.72 0.15 190 / 0.22), transparent 65%),
    radial-gradient(50% 50% at 70% 80%, oklch(0.81 0.14 156 / 0.18), transparent 70%);
  filter: blur(40px);
  animation: meshDrift 24s ease-in-out infinite alternate;
}
.mesh::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.4 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.04;
  mix-blend-mode: overlay;
}
@keyframes meshDrift {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-2%, 1%) scale(1.05); }
  100% { transform: translate(2%, -1%) scale(1.02); }
}
@media (prefers-reduced-motion: reduce) {
  .mesh::before { animation: none; }
}

/* Word-mask reveal */
.word {
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
  line-height: 1;
  padding: 0.08em 0.05em 0.08em 0;
  margin: -0.08em 0;
  transition: overflow 0s linear var(--dur-1200);
}
.word.in {
  overflow: visible;
}
.word > span {
  display: inline-block;
  transform: translateY(110%);
  transition: transform var(--dur-1200) var(--ease-out);
}
.word.in > span {
  transform: translateY(0);
}

/* Section fade + up on view */
.rev {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-600) var(--ease-out), transform var(--dur-600) var(--ease-out);
}
.rev.in {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .rev { transition: opacity var(--dur-320) linear; transform: none; }
}

/* Magnetic button */
.mag {
  display: inline-block;
  will-change: transform;
  transition: transform 180ms var(--ease-spring);
}
@media (hover: none) {
  .mag { transform: none !important; }
}

/* Tilt */
.tilt {
  transform-style: preserve-3d;
  transition: transform 220ms var(--ease-out);
}
@media (hover: none), (max-width: 1023px) {
  .tilt { transform: none !important; }
}

/* Accordion */
.acc-body {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height var(--dur-320) var(--ease-out), opacity var(--dur-200) linear;
}
.acc.open .acc-body {
  opacity: 1;
}

/* Tabular numbers for counters */
.tnum {
  font-variant-numeric: tabular-nums;
  font-feature-settings: 'tnum';
}

/* Hairline grid for dashboard */
.grid-lines {
  background-image:
    linear-gradient(to right, var(--border) 0.5px, transparent 0.5px),
    linear-gradient(to bottom, var(--border) 0.5px, transparent 0.5px);
  background-size: 56px 56px;
}

/* Chart dashed baseline */
.baseline {
  stroke: var(--border);
  stroke-dasharray: 2 4;
}

/* Skip link */
.skip {
  position: absolute;
  left: -9999px;
  top: 8px;
  background: var(--primary);
  color: var(--primary-ink);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  z-index: 200;
}
.skip:focus {
  left: 12px;
}

/* Keep nav chrome sharp on backdrop */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: height var(--dur-200) var(--ease-out), background var(--dur-200) var(--ease-out), border-color var(--dur-200) var(--ease-out);
  height: 72px;
  border-bottom: 0.5px solid transparent;
}
.nav.scrolled {
  height: 56px;
  background: oklch(from var(--bg) l c h / 0.72);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-bottom-color: var(--border);
}

/* Utility */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.gap-8 { gap: 32px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.mt-12 { margin-top: 48px; }
.mt-16 { margin-top: 64px; }
.mt-24 { margin-top: 96px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }
.mb-12 { margin-bottom: 48px; }
.section {
  padding-top: clamp(80px, 12vw, 160px);
  padding-bottom: clamp(80px, 12vw, 160px);
}
.section-sm {
  padding-top: clamp(48px, 8vw, 96px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* Tag */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  background: var(--surface);
  border: 0.5px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}
.tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
}
.tag.live .dot {
  background: var(--success);
  box-shadow: 0 0 8px oklch(0.72 0.17 152 / 0.6);
  animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}