/* Opiam — design tokens + base styles */

/* CSS @property declarations for animatable gradient positions */
@property --grad-ox {
  syntax: '<percentage>';
  initial-value: 25%;
  inherits: false;
}

@property --grad-oy {
  syntax: '<percentage>';
  initial-value: -10%;
  inherits: false;
}

@property --grad-bx {
  syntax: '<percentage>';
  initial-value: 75%;
  inherits: false;
}

@property --grad-by {
  syntax: '<percentage>';
  initial-value: 90%;
  inherits: false;
}

:root {
  --bg: #0C0F16;
  --bg-elev: #121720;
  --bg-card: #161C28;
  --bg-card-2: #1C2232;
  --line: #242C3A;
  --line-soft: #1A2030;
  --fg: #F0EDE6;
  --fg-muted: #8A96AA;
  --fg-dim: #566070;
  --accent: #FF7A3E;
  --accent-2: #4A9EFF;
  --accent-ink: #0E1116;
  --warn: #FF4A6E;
  --grid: rgba(255, 255, 255, 0.026);
}

[data-theme="light"] {
  --bg: #F4F1EA;
  --bg-elev: #EDE9E0;
  --bg-card: #FFFFFF;
  --bg-card-2: #F8F5EE;
  --line: #D8D2C4;
  --line-soft: #E4DED4;
  --fg: #0E1116;
  --fg-muted: #4A5260;
  --fg-dim: #7A8190;
  --accent: #E85A18;
  --accent-2: #1A7EFF;
  --accent-ink: #FFFFFF;
  --warn: #E02050;
  --grid: rgba(0, 0, 0, 0.032);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* overflow-x: clip prevents horizontal scroll WITHOUT creating a new scroll
     container. `hidden` breaks `position: sticky` for descendants. */
  overflow-x: clip;
}

body {
  --grad-ox: 25%;
  --grad-oy: -10%;
  --grad-bx: 75%;
  --grad-by: 90%;
  background-image:
    radial-gradient(ellipse 70% 50% at var(--grad-ox) var(--grad-oy), rgba(255, 122, 62, 0.13), transparent 65%),
    radial-gradient(ellipse 60% 45% at var(--grad-bx) var(--grad-by), rgba(74, 158, 255, 0.10), transparent 65%),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: auto, auto, 64px 64px, 64px 64px;
  background-position: 0 0, 0 0, 0 0, 0 0;
  animation: gradDrift 22s ease-in-out infinite alternate;
}

@keyframes gradDrift {
  0% {
    --grad-ox: 25%;
    --grad-oy: -10%;
    --grad-bx: 75%;
    --grad-by: 90%;
  }

  25% {
    --grad-ox: 42%;
    --grad-oy: 6%;
    --grad-bx: 58%;
    --grad-by: 68%;
  }

  50% {
    --grad-ox: 14%;
    --grad-oy: 22%;
    --grad-bx: 86%;
    --grad-by: 52%;
  }

  75% {
    --grad-ox: 58%;
    --grad-oy: -4%;
    --grad-bx: 38%;
    --grad-by: 78%;
  }

  100% {
    --grad-ox: 32%;
    --grad-oy: 12%;
    --grad-bx: 68%;
    --grad-by: 38%;
  }
}

.serif {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.mono {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
}

.wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

/* Eyebrow labels */
.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-muted);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent-2);
}

/* Section headers */
.section {
  padding: 120px 0;
  position: relative;
  border-top: 1px solid var(--line-soft);
}

.section-head {
  display: flex;
  gap: 48px;
  align-items: flex-end;
  margin-bottom: 72px;
}

.section-head .num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--accent-2);
  letter-spacing: 0.2em;
  min-width: 90px;
  padding-top: 8px;
}

.section-head h2 {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: clamp(40px, 4.2vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0;
  color: var(--fg);
  max-width: 900px;
}

.section-head h2 em {
  font-style: italic;
  color: color-mix(in oklab, var(--fg) 65%, var(--accent) 35%);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  cursor: pointer;
  border: none;
  transition: transform .15s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 2px 24px color-mix(in oklab, var(--accent) 28%, transparent);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 32px color-mix(in oklab, var(--accent) 40%, transparent);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--fg);
}

.btn-ghost:hover {
  border-color: var(--fg);
}

.btn .arrow {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 99px;
  background: var(--accent-ink);
  color: var(--accent);
  font-size: 12px;
}

.btn-ghost .arrow {
  background: var(--fg);
  color: var(--bg);
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 18px;
  padding: 28px;
  position: relative;
  overflow: hidden;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--bg) 80%, transparent);
  border-bottom: 1px solid var(--line-soft);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
}

.logo .mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: conic-gradient(from 210deg, var(--accent), color-mix(in oklab, var(--accent-2) 55%, var(--bg)) 45%, var(--accent));
  display: grid;
  place-items: center;
  color: var(--accent-ink);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 0 18px color-mix(in oklab, var(--accent) 35%, transparent);
}

/* ── Image logo (actual brand logo PNG) ──────────────────────────── */
.logo-img-wrap {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-logo-img {
  height: 40px;
  width: auto;
  display: block;
  transition: opacity 0.2s ease;
}

.nav-logo-img:hover {
  opacity: 0.85;
}

.footer-logo-img {
  height: 48px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  gap: 36px;
  font-size: 14px;
  color: var(--fg-muted);
}

.nav-links a {
  color: inherit;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--fg);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Status chip */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 99px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.chip .dot {
  width: 6px;
  height: 6px;
  border-radius: 99px;
  background: var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 color-mix(in oklab, var(--accent) 60%, transparent);
  }

  70% {
    box-shadow: 0 0 0 8px color-mix(in oklab, var(--accent) 0%, transparent);
  }

  100% {
    box-shadow: 0 0 0 0 color-mix(in oklab, var(--accent) 0%, transparent);
  }
}

/* Util */
.hidden {
  display: none !important;
}

.mt-4 {
  margin-top: 16px;
}

.mt-8 {
  margin-top: 32px;
}

.mt-12 {
  margin-top: 48px;
}

.text-muted {
  color: var(--fg-muted);
}

.text-dim {
  color: var(--fg-dim);
}

/* Footer */
.footer {
  border-top: 1px solid var(--line-soft);
  padding: 60px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.footer h5 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin: 0 0 14px;
  font-weight: 500;
}

.footer a {
  color: var(--fg-muted);
  text-decoration: none;
  display: block;
  padding: 4px 0;
  font-size: 14px;
}

.footer a:hover {
  color: var(--fg);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  color: var(--fg-dim);
  font-size: 12px;
  font-family: 'IBM Plex Mono', monospace;
}

/* Focus */
*:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ===== Mobile base fixes (max 767px) ===== */
@media (max-width: 767px) {

  /* Nav — tighten padding and hide chip to prevent overflow */
  .nav-inner {
    padding: 14px 16px;
    gap: 8px;
  }

  .nav-inner .chip {
    display: none;
  }

  .nav-right {
    gap: 8px;
  }

  /* Wrap — tighten horizontal padding on mid-small screens */
  .wrap {
    padding: 0 16px;
  }

  /* Section header — flatten .num min-width so it doesn't crowd */
  .section-head .num {
    min-width: unset;
  }

  /* Footer bottom — stack items vertically */
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  /* Footer grid — single column already at 640px but repeat for safety */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}