/* ImmersIA prototype — layered on tokens.css ===================== */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg-canvas);
  color: var(--fg-1);
  overflow-x: hidden;
}

button { font-family: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }

/* ---- Tweakable accent --------------------------------------- */
:root {
  --warm-accent: #D97757;   /* terracotta default; switchable via Tweaks */
  --warm-accent-soft: #F5D6C6;
}

/* ---- Halftone + grain texture utilities --------------------- */
.bg-halftone {
  background-image: radial-gradient(circle, currentColor 1.2px, transparent 1.6px);
  background-size: 12px 12px;
}
.bg-grain {
  position: relative;
}
.bg-grain::after {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  opacity: 0.08;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.7 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* ---- Layout helpers ----------------------------------------- */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}
.container-wide {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}
section { position: relative; }

/* ---- Buttons ------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-base);
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out);
  text-decoration: none;
}
.btn:active { transform: scale(0.98); }
.btn .arrow { transition: transform var(--dur-base) var(--ease-out); }
.btn:hover .arrow { transform: translateX(3px); }

.btn-primary {
  background: var(--brand);
  color: var(--fg-on-purple);
}
.btn-primary:hover { background: var(--brand-hover); box-shadow: var(--shadow-md); }

.btn-light {
  background: white;
  color: var(--brand);
}
.btn-light:hover { box-shadow: var(--shadow-lg); }

.btn-ghost-dark {
  background: transparent;
  color: white;
  border-color: rgba(255,255,255,0.32);
}
.btn-ghost-dark:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.6); }

.btn-ghost {
  background: transparent;
  color: var(--fg-1);
  border-color: var(--line-2);
}
.btn-ghost:hover { background: var(--bg-subtle); }

.btn-accent {
  background: var(--warm-accent);
  color: white;
}
.btn-accent:hover { filter: brightness(0.95); box-shadow: var(--shadow-md); }

.btn-sm { padding: 9px 16px; font-size: var(--fs-sm); }

/* ---- Eyebrow & chips ---------------------------------------- */
.eyebrow-mark {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--tagline);
}
.eyebrow-mark::before {
  content: "//";
  font-weight: 900;
  letter-spacing: -0.08em;
  color: var(--tagline);
}
.eyebrow-mark.on-purple {
  color: #C4B5FD;
}
.eyebrow-mark.on-purple::before { color: #C4B5FD; }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--purple-50);
  color: var(--purple-800);
  border: 1px solid var(--purple-100);
}
.chip-dark { background: rgba(255,255,255,0.10); color: white; border-color: rgba(255,255,255,0.18); }
.chip-accent { background: var(--warm-accent-soft); color: #7a3414; border-color: transparent; }

/* ---- Cards -------------------------------------------------- */
.card {
  background: white;
  border: 1px solid var(--line-1);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

/* ---- Scroll reveal ----------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* Motion intensity dial — set via tweak */
:root[data-motion="calm"] .reveal { transition-duration: 400ms; transform: translateY(6px); }
:root[data-motion="kinetic"] .reveal { transition-duration: 900ms; transform: translateY(24px); }

/* ---- Marquee ------------------------------------------------ */
@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.marquee-track {
  display: flex;
  gap: var(--space-12);
  width: max-content;
  animation: marquee 40s linear infinite;
}
:root[data-motion="calm"] .marquee-track { animation-duration: 60s; }
:root[data-motion="kinetic"] .marquee-track { animation-duration: 24s; }

/* ---- Kinetic hero word swap -------------------------------- */
.kinetic-word {
  display: inline-block;
  position: relative;
  vertical-align: baseline;
  overflow: hidden;
  height: 1em;
  line-height: 1;
}
.kinetic-word > span {
  display: block;
  transition: transform 600ms var(--ease-out), opacity 600ms var(--ease-out);
}

/* ---- Section dividers -------------------------------------- */
.rule {
  height: 1px;
  background: var(--line-1);
  border: none;
  margin: 0;
}
.rule-on-purple { background: rgba(255,255,255,0.18); }

/* ---- The // big mark --------------------------------------- */
.deco-slashes {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.08em;
  line-height: 0.85;
  transform: skewX(-12deg);
  pointer-events: none;
  user-select: none;
}

/* ---- Photo placeholder ------------------------------------- */
.photo-ph {
  position: relative;
  background: linear-gradient(135deg, #2E1065 0%, #5B21B6 55%, #7C3AED 100%);
  border-radius: var(--radius-xl);
  overflow: hidden;
  color: rgba(255,255,255,0.75);
  font-family: var(--font-display);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px;
  isolation: isolate;
}
.photo-ph::before {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.35) 1.2px, transparent 1.6px);
  background-size: 14px 14px;
  -webkit-mask-image: radial-gradient(ellipse at 30% 30%, black 0%, transparent 70%);
  mask-image: radial-gradient(ellipse at 30% 30%, black 0%, transparent 70%);
  opacity: 0.55;
  z-index: 0;
}
.photo-ph::after {
  content: "PHOTO";
  position: absolute; top: 16px; left: 16px;
  font-size: 10px; font-weight: 700; letter-spacing: 0.18em;
  background: rgba(0,0,0,0.35); color: white;
  padding: 5px 9px; border-radius: 4px;
  z-index: 2;
}
.photo-ph.has-photo::before {
  background: linear-gradient(180deg, transparent 45%, rgba(14,14,19,0.78) 100%);
  -webkit-mask-image: none;
  mask-image: none;
  opacity: 1;
}
.photo-ph.has-photo::after { content: none; }
.photo-ph.has-photo img { z-index: -1; }
.photo-ph > * { position: relative; z-index: 1; }
.photo-ph.has-photo img { z-index: 0; }
.photo-ph.has-photo::before { z-index: 1; }
.photo-ph .ph-caption {
  z-index: 2;
  font-size: 13px;
  color: rgba(255,255,255,0.85);
  line-height: 1.35;
  max-width: 90%;
}

/* ---- Stat ---------------------------------------------------- */
.stat-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(48px, 6vw, 84px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--fg-1);
}
.stat-num.on-purple { color: white; }
.stat-label {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--fg-3);
  margin-top: 8px;
  max-width: 220px;
}
.stat-label.on-purple { color: rgba(255,255,255,0.72); }

/* ---- Skeleton hover for IDIA radial ------------------------ */
.radial-axis {
  cursor: pointer;
  transition: all var(--dur-base) var(--ease-out);
}
.radial-axis:hover { transform: scale(1.04); }

/* ---- Tag links ---------------------------------------------- */
.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--accent);
  font-size: var(--fs-sm);
  border-bottom: none;
}
.link-arrow:hover { color: var(--accent-hover); }
.link-arrow .arrow { transition: transform var(--dur-base) var(--ease-out); }
.link-arrow:hover .arrow { transform: translateX(3px); }

/* ---- Responsive small adjustments -------------------------- */
@media (max-width: 760px) {
  .container, .container-wide { padding: 0 20px; }
  .card { padding: var(--space-6); }
}