/* ============================================================
   WTMG Labs — frontier-clean redesign
   Tokens, type, layout, components, motion
   ============================================================ */

/* ---------- TOKENS ---------- */
:root {
  --bg:         #ffffff;
  --bg-pure:    #ffffff;
  --surface:    #fafafa;
  --surface-2:  #f3f3f4;
  --ink:        #101012;
  --ink-2:      #34343a;
  --muted:      #6b6b72;
  --muted-2:    #8a8a90;
  --line:       rgba(16,16,18,0.10);
  --line-2:     rgba(16,16,18,0.18);
  --dark:       #0b0c0e;
  --dark-2:     #131418;
  --on-dark:    #f3f3f1;
  --on-dark-muted: rgba(243,243,241,0.58);
  --on-dark-line:  rgba(243,243,241,0.14);

  /* type */
  --font-body:    'Hanken Grotesk', system-ui, -apple-system, sans-serif;
  --font-display: 'Hanken Grotesk', system-ui, -apple-system, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, 'SFMono-Regular', monospace;
  --display-weight: 700;
  --display-track:  -0.028em;

  /* layout */
  --maxw: 1240px;
  --pad:  clamp(1.5rem, 5vw, 4.5rem);

  /* accent — overridden by [data-accent] */
  --accent:        #a87d1c;
  --accent-bright: #c79f3c;
  --accent-soft:   rgba(168,125,28,0.12);
  --accent-line:   rgba(168,125,28,0.42);
  --accent-on-dark:#e0bb64;

  /* green — Nigerian flag accent, used sparingly for place + live signals */
  --green:         #0a8a4d;
  --green-on-dark: #2eb56e;
  --green-soft:    rgba(10,138,77,0.12);
}

:root[data-accent="gold"] {
  --accent:        #a87d1c;
  --accent-bright: #c79f3c;
  --accent-soft:   rgba(168,125,28,0.12);
  --accent-line:   rgba(168,125,28,0.42);
  --accent-on-dark:#e0bb64;
}
:root[data-accent="silver"] {
  --accent:        #5c6773;
  --accent-bright: #828d99;
  --accent-soft:   rgba(92,103,115,0.12);
  --accent-line:   rgba(92,103,115,0.40);
  --accent-on-dark:#b3bcc7;
}

:root[data-display="serif"] {
  --font-display: 'Instrument Serif', Georgia, 'Times New Roman', serif;
  --display-weight: 400;
  --display-track: -0.005em;
}

/* ---------- RESET ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  font-feature-settings: "ss01", "cv01";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* optional film grain */
body[data-grain="on"]::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.5;
  mix-blend-mode: multiply;
}

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

a { color: inherit; text-decoration: none; }

/* ---------- SHARED ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.70rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
}
.eyebrow .idx { color: var(--accent); }
/* Lagos location beacon — flag green */
.hero-top .eyebrow .idx {
  color: var(--green);
  text-shadow: 0 0 10px color-mix(in srgb, var(--green) 45%, transparent);
}
.eyebrow .tick {
  width: 1.4em; height: 1px; background: var(--accent-line); display: inline-block;
}

.section-rule { height: 1px; background: var(--line); border: 0; }

h1, h2, h3 { font-family: var(--font-display); font-weight: var(--display-weight); letter-spacing: var(--display-track); line-height: 1.02; }

.accent { color: var(--accent); }

/* ---------- NAV ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav[data-scrolled="true"] { border-bottom-color: var(--line); }
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.05rem var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* logo lockup */
.logo { display: inline-flex; align-items: baseline; gap: 0.55rem; }
.logo .mark {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1.02rem;
  letter-spacing: 0.16em;
  color: var(--ink);
}
.logo .mark .dot { color: var(--accent); }
.logo .sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted-2);
  padding-bottom: 0.05em;
}

.nav-right { display: flex; align-items: center; gap: 1.6rem; }
.nav-link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.2s;
}
.nav-link:hover { color: var(--ink); }
.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--ink);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.nav-cta:hover { border-color: var(--accent-line); color: var(--accent); }

/* ---------- HERO ---------- */
.hero { padding-top: clamp(3.5rem, 8vw, 7rem); padding-bottom: clamp(2.5rem, 5vw, 4rem); }
.hero-top { display: flex; flex-wrap: wrap; align-items: center; gap: 0.7rem 1rem; margin-bottom: clamp(2rem, 5vw, 3.2rem); }
.hero-top .line { flex: 1; height: 1px; background: var(--line); }
.hero-top .eyebrow { white-space: nowrap; }

.hero h1 {
  font-size: clamp(2.7rem, 7.2vw, 6.1rem);
  line-height: 0.98;
  max-width: 16ch;
  margin-bottom: 0;
}
.hero h1 .em { color: var(--accent); }
:root[data-display="serif"] .hero h1 { line-height: 0.96; }
:root[data-display="serif"] .hero h1 .em { font-style: italic; }

.hero-grid {
  margin-top: clamp(2rem, 4vw, 3rem);
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
}
.hero-sub {
  font-size: clamp(1.02rem, 1.5vw, 1.22rem);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 40ch;
}
.hero-aside { display: flex; flex-direction: column; gap: 1.4rem; align-items: flex-start; }
.hero-meta { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em; color: var(--muted); line-height: 1.9; }
.hero-meta b { color: var(--ink); font-weight: 500; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 0.18s ease, background 0.2s, color 0.2s, border-color 0.2s;
}
.btn .arr { transition: transform 0.2s ease; }
.btn:hover .arr { transform: translateX(3px); }
.btn-primary { background: var(--ink); color: var(--bg-pure); }
.btn-primary:hover { background: var(--accent); }
.btn-ghost { color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--accent-line); color: var(--accent); }

/* inline "more" link with arrow */
.more-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink); margin-top: 0.4rem;
  padding-bottom: 0.3rem; border-bottom: 1px solid var(--accent-line);
  transition: color 0.2s, border-color 0.2s, gap 0.2s;
  white-space: nowrap; width: fit-content;
}
.more-link .arr { transition: transform 0.2s ease; color: var(--accent); }
.more-link:hover { color: var(--accent); }
.more-link:hover .arr { transform: translateX(4px); }
.more-link.on-dark { color: var(--on-dark); border-bottom-color: var(--accent-on-dark); }
.more-link.on-dark .arr { color: var(--accent-on-dark); }
.more-link.on-dark:hover { color: var(--accent-on-dark); }

/* hero image band */
.hero-figure {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 21 / 9;
  background: var(--surface);
}
.hero-figure img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center 62%;
  display: block;
  filter: saturate(1.02) contrast(1.02);
}
.hero-figure::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(8,9,11,0.55) 0%, rgba(8,9,11,0.05) 38%, transparent 60%);
}
.hero-figure .cap {
  position: absolute; left: 1.4rem; bottom: 1.2rem; z-index: 2;
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: rgba(255,255,255,0.82);
  display: flex; align-items: center; gap: 0.6rem;
}
.hero-figure .cap .geo { width: 6px; height: 6px; border-radius: 50%; background: var(--green-on-dark); box-shadow: 0 0 0 4px color-mix(in srgb, var(--green-on-dark) 22%, transparent); }
.hero-figure .coord {
  position: absolute; right: 1.4rem; bottom: 1.2rem; z-index: 2;
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.12em;
  color: rgba(255,255,255,0.6);
}

/* ---------- MISSION ---------- */
.mission { padding-block: clamp(4rem, 8vw, 7rem); }
.mission-head { display: flex; justify-content: space-between; align-items: baseline; gap: 2rem; margin-bottom: clamp(2.5rem, 5vw, 3.6rem); flex-wrap: wrap; }
.mission-head h2 { font-size: clamp(1.5rem, 2.6vw, 2.05rem); max-width: 20ch; line-height: 1.1; }
.mission-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line-2); }
.m-item { padding: 1.8rem 1.8rem 2.2rem; border-left: 1px solid var(--line); }
.m-item:first-child { border-left: 0; padding-left: 0; }
.m-num { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); letter-spacing: 0.1em; }
.m-label { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; letter-spacing: -0.01em; margin: 0.7rem 0 0.8rem; color: var(--ink); }
.m-item p { font-size: 0.95rem; color: var(--muted); line-height: 1.65; }

/* ---------- VISION ---------- */
.vision { padding-block: clamp(4rem, 8vw, 7rem); }
.vision-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2.5rem, 6vw, 5.5rem); }
.vision-quote { position: relative; }
.vision-quote blockquote {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: var(--display-track);
  color: var(--ink);
}
:root[data-display="serif"] .vision-quote blockquote { line-height: 1.14; }
.vision-quote .qmark { color: var(--accent); }
.vision-quote cite {
  display: block; margin-top: 1.6rem; font-style: normal;
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted);
}
.vision-body p { font-size: 1.02rem; line-height: 1.7; color: var(--ink-2); margin-bottom: 1.2rem; }
.vision-body .lead-line {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.4rem, 2.6vw, 1.9rem); line-height: 1.2; letter-spacing: var(--display-track);
  color: var(--ink); margin-bottom: 1rem;
}
.vision-body .lead-line em { font-style: normal; color: var(--accent); }
:root[data-display="serif"] .vision-body .lead-line em { font-style: italic; }
.assume { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.2rem 0 1.4rem; }
.assume span {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.04em;
  color: var(--muted); text-decoration: line-through; text-decoration-color: var(--accent-line);
  text-decoration-thickness: 1.5px;
  border: 1px solid var(--line-2); border-radius: 999px; padding: 0.35rem 0.85rem; white-space: nowrap;
}
.vision-body .kicker {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.15rem, 2vw, 1.5rem); line-height: 1.35;
  color: var(--ink); letter-spacing: -0.01em;
  padding-top: 1.5rem; margin-top: 1.4rem; border-top: 1px solid var(--line);
}
.vision-body .kicker em { font-style: normal; color: var(--accent); }

/* ---------- PRODUCT (dark) ---------- */
.product {
  background: var(--dark);
  color: var(--on-dark);
  padding: clamp(4.5rem, 8vw, 8rem) 0;
  position: relative;
}
.product .eyebrow { color: var(--on-dark-muted); }
.product .eyebrow .tick { background: var(--accent-on-dark); opacity: 0.6; }
.product .eyebrow .idx { color: var(--accent-on-dark); }

.product-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 2rem; flex-wrap: wrap; margin: 1.6rem 0 clamp(2.5rem, 5vw, 3.6rem); }
.product-id { display: flex; align-items: baseline; gap: 1rem; flex-wrap: wrap; }
.product-id h2 { font-size: clamp(2.2rem, 5vw, 3.6rem); color: var(--on-dark); white-space: nowrap; }
.badge {
  font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent-on-dark);
  border: 1px solid var(--on-dark-line); border-radius: 999px; padding: 0.32rem 0.8rem;
  white-space: nowrap;
}
.product-tagline { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.1rem, 2vw, 1.5rem); color: var(--on-dark); letter-spacing: -0.01em; max-width: 24ch; }
:root[data-display="serif"] .product-tagline { font-style: italic; }

.product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2.5rem, 5vw, 4.5rem); align-items: start; }

.product-claim {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: clamp(1.35rem, 2.8vw, 2.05rem);
  line-height: 1.3;
  letter-spacing: var(--display-track);
  color: var(--on-dark);
  max-width: 30ch;
  margin-bottom: clamp(2.5rem, 5vw, 3.8rem);
}
.product-claim .accent { color: var(--accent-on-dark); }

.product-copy p.lede { font-size: 1.04rem; line-height: 1.7; color: var(--on-dark-muted); margin-bottom: 2rem; max-width: 46ch; }
.feature-list { list-style: none; border-top: 1px solid var(--on-dark-line); }
.feature-list li {
  display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: start;
  padding: 0.95rem 0; border-bottom: 1px solid var(--on-dark-line);
  font-size: 0.95rem; color: var(--on-dark); line-height: 1.5;
}
.feature-list li .fnum { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent-on-dark); padding-top: 0.15em; }
.product-actions { display: flex; gap: 1rem; margin-top: 2rem; flex-wrap: wrap; }
.btn-on-dark { background: var(--on-dark); color: var(--dark); }
.btn-on-dark:hover { background: var(--accent-on-dark); color: var(--dark); }
.btn-on-dark-ghost { color: var(--on-dark); border-color: var(--on-dark-line); }
.btn-on-dark-ghost:hover { border-color: var(--accent-on-dark); color: var(--accent-on-dark); }

/* spec rail */
.repo-note { font-family: var(--font-mono); font-size: 0.66rem; line-height: 1.7; letter-spacing: 0.02em; color: var(--on-dark-muted); margin-top: 1rem; max-width: 46ch; }
.spec-rail { display: flex; gap: 2rem; margin-top: 2.4rem; flex-wrap: wrap; }
.spec { }
.spec .k { font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--on-dark-muted); }
.spec .v { font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; color: var(--on-dark); margin-top: 0.2rem; }

/* ---------- CHAT DEMO ---------- */
.demo {
  background: var(--dark-2);
  border: 1px solid var(--on-dark-line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 30px 70px -30px rgba(0,0,0,0.7);
}
.demo-head {
  display: flex; align-items: center; gap: 0.8rem;
  padding: 0.9rem 1.1rem; border-bottom: 1px solid var(--on-dark-line);
  background: rgba(255,255,255,0.02);
}
.demo-avatar {
  width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0;
  background: var(--accent-on-dark); color: var(--dark);
  display: grid; place-items: center; font-family: var(--font-mono); font-weight: 600; font-size: 0.8rem;
}
.demo-id { line-height: 1.25; }
.demo-id .name { font-weight: 600; font-size: 0.92rem; color: var(--on-dark); }
.demo-id .status { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.06em; color: var(--on-dark-muted); display: flex; align-items: center; gap: 0.4rem; white-space: nowrap; }
.demo-id .status .live { width: 6px; height: 6px; border-radius: 50%; background: var(--green-on-dark); box-shadow: 0 0 0 3px var(--green-soft); }
.demo-head .lock { margin-left: auto; font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.08em; color: var(--on-dark-muted); border: 1px solid var(--on-dark-line); border-radius: 6px; padding: 0.25rem 0.5rem; white-space: nowrap; }

.demo-body {
  padding: 1.2rem 1.1rem;
  display: flex; flex-direction: column; gap: 0.85rem;
  background:
    radial-gradient(120% 80% at 50% 0%, rgba(255,255,255,0.025), transparent 60%);
}
.msg { max-width: 86%; }
.msg .bubble {
  padding: 0.7rem 0.9rem; border-radius: 14px; font-size: 0.9rem; line-height: 1.45;
}
.msg .time { font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.06em; color: var(--on-dark-muted); margin-top: 0.35rem; }
.msg.out { align-self: flex-end; text-align: right; }
.msg.out .bubble { background: var(--accent-on-dark); color: #15140f; border-bottom-right-radius: 5px; display: inline-block; text-align: left; }
.msg.in { align-self: flex-start; }
.msg.in .bubble { background: rgba(255,255,255,0.06); color: var(--on-dark); border: 1px solid var(--on-dark-line); border-bottom-left-radius: 5px; }

/* camera still */
.cam {
  position: relative; border-radius: 11px; overflow: hidden; margin-bottom: 0.55rem;
  aspect-ratio: 4 / 3;
  background:
    repeating-linear-gradient(135deg, #1a1c20 0 11px, #16181c 11px 22px);
  border: 1px solid var(--on-dark-line);
}
.cam .scan { position: absolute; inset: 0; background: linear-gradient(transparent 50%, rgba(255,255,255,0.018) 50%); background-size: 100% 4px; }
.cam .hud { position: absolute; inset: 0; }
.cam .corner { position: absolute; width: 16px; height: 16px; border: 1.5px solid rgba(255,255,255,0.5); }
.cam .corner.tl { top: 9px; left: 9px; border-right: 0; border-bottom: 0; }
.cam .corner.tr { top: 9px; right: 9px; border-left: 0; border-bottom: 0; }
.cam .corner.bl { bottom: 9px; left: 9px; border-right: 0; border-top: 0; }
.cam .corner.br { bottom: 9px; right: 9px; border-left: 0; border-top: 0; }
.cam .rec { position: absolute; top: 9px; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 0.4rem; font-family: var(--font-mono); font-size: 0.56rem; letter-spacing: 0.1em; color: rgba(255,255,255,0.78); }
.cam .rec .dot { width: 7px; height: 7px; border-radius: 50%; background: #e5484d; }
.cam .label { position: absolute; inset: 0; display: grid; place-items: center; font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255,255,255,0.34); }
.cam .ts { position: absolute; bottom: 9px; right: 11px; font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.06em; color: rgba(255,255,255,0.7); }
.cam .camid { position: absolute; bottom: 9px; left: 11px; font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.06em; color: rgba(255,255,255,0.55); }

/* typing dots */
.typing { display: inline-flex; gap: 4px; align-items: center; }
.typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--on-dark-muted); animation: blink 1.3s infinite ease-in-out both; }
.typing span:nth-child(2){ animation-delay: 0.18s; }
.typing span:nth-child(3){ animation-delay: 0.36s; }
@keyframes blink { 0%,80%,100%{ opacity: 0.3; transform: translateY(0); } 40%{ opacity: 1; transform: translateY(-2px); } }

/* ---------- STORY ---------- */
.story { padding-block: clamp(4.5rem, 8vw, 8rem); }
.story-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(2.5rem, 6vw, 6rem); align-items: start; }
.story blockquote, .story-grid blockquote {
  font-family: var(--font-display); font-weight: var(--display-weight);
  font-size: clamp(1.5rem, 3vw, 2.3rem); line-height: 1.2; letter-spacing: var(--display-track);
  color: var(--ink);
}
:root[data-display="serif"] .story blockquote,
:root[data-display="serif"] .story-grid blockquote { font-style: italic; }
.story .src, .story-grid .src { display: block; margin-top: 1.4rem; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.story-body p { font-size: 1.0rem; line-height: 1.75; color: var(--ink-2); margin-bottom: 1.1rem; }
.story-body p.last { color: var(--ink); font-weight: 500; }
.story-lead { font-size: clamp(1.05rem, 1.8vw, 1.25rem); line-height: 1.6; color: var(--ink-2); margin-bottom: 1.6rem; }
.note {
  display: grid; grid-template-columns: 7rem 1fr; gap: 1.4rem; align-items: baseline;
  padding: 1.15rem 0; border-top: 1px solid var(--line);
}
.note:first-child { border-top: 0; padding-top: 0; }
.note-k {
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent); padding-top: 0.15em;
}
.note p { font-size: 0.98rem; line-height: 1.7; color: var(--ink-2); margin: 0; }
.story-punch {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.2rem, 2.2vw, 1.55rem); line-height: 1.3; letter-spacing: var(--display-track);
  color: var(--ink); margin-top: 1.6rem; padding-top: 1.5rem; border-top: 1px solid var(--line);
}
@media (max-width: 560px) {
  .note { grid-template-columns: 1fr; gap: 0.45rem; }
}

/* ---------- FOOTER ---------- */
.footer { background: var(--dark); color: var(--on-dark); padding: clamp(3rem, 6vw, 5rem) 0 2.5rem; }
.footer-grid { display: flex; justify-content: space-between; align-items: flex-start; gap: 2rem; flex-wrap: wrap; }
.footer .logo .mark { color: var(--on-dark); }
.footer .logo .sub { color: var(--on-dark-muted); }
.footer-tag { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.04em; color: var(--on-dark-muted); margin-top: 1rem; max-width: 30ch; line-height: 1.7; }
.footer-links { display: flex; gap: 1.6rem; }
.footer-links a { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--on-dark-muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--accent-on-dark); }
.footer-base { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: clamp(2.5rem, 5vw, 3.5rem); padding-top: 1.6rem; border-top: 1px solid var(--on-dark-line); flex-wrap: wrap; }
.footer-base span { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.06em; color: var(--on-dark-muted); }

/* ---------- MOTION ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.7s cubic-bezier(.2,.7,.3,1), transform 0.7s cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }
body[data-motion="off"] .reveal { opacity: 1; transform: none; transition: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .typing span { animation: none; }
}

/* ---------- PRODUCT INTRO ---------- */
.product-intro { padding-block: clamp(3.5rem, 7vw, 6rem); text-align: center; }
.product-intro .eyebrow { justify-content: center; margin-bottom: 1.4rem; }
.product-intro-line {
  font-family: var(--font-display); font-weight: var(--display-weight);
  font-size: clamp(1.9rem, 4.6vw, 3.3rem); line-height: 1.08;
  letter-spacing: var(--display-track); color: var(--ink);
  max-width: 18ch; margin: 0 auto;
}
.product-intro-line .accent { color: var(--accent); }
.product-intro-cue {
  display: block; margin-top: 1.8rem; color: var(--muted);
  font-family: var(--font-mono); font-size: 1.25rem; line-height: 1;
  animation: introCue 1.9s ease-in-out infinite;
}
@media (prefers-reduced-motion: reduce) { .product-intro-cue { animation: none; } }
@keyframes introCue { 0%, 100% { transform: translateY(0); opacity: .45; } 50% { transform: translateY(7px); opacity: 1; } }

/* ---------- WHY SLIDER (Why now / Why we started) ---------- */
.whyslider { padding-block: clamp(4rem, 8vw, 7.5rem); position: relative; }
.whyslider-viewport { overflow: hidden; }
.whyslider-track {
  display: flex;
  transition: transform 0.75s cubic-bezier(.5,.02,.2,1);
  will-change: transform;
}
@media (prefers-reduced-motion: reduce) { .whyslider-track { transition: none; } }
.whyslide { flex: 0 0 100%; min-width: 0; padding: 2px; }
.whyslider-nav {
  display: flex; align-items: center; justify-content: center; gap: 1.4rem;
  margin-top: clamp(2.4rem, 5vw, 3.4rem);
}
.why-dots { display: flex; align-items: center; gap: 0.55rem; }
.why-dot {
  width: 30px; height: 4px; padding: 0; border: 0; border-radius: 2px;
  background: var(--line-2); cursor: pointer; transition: background .35s, width .35s;
}
.why-dot.is-active { background: var(--accent); width: 50px; }
.why-arrow {
  width: 40px; height: 40px; border-radius: 50%; flex: none;
  border: 1px solid var(--line); background: transparent; color: var(--ink-2);
  font-family: var(--font-mono); font-size: 1rem; line-height: 1; cursor: pointer;
  display: grid; place-items: center;
  transition: border-color .25s, color .25s, background .25s;
}
.why-arrow:hover { border-color: var(--accent-line); color: var(--accent); background: var(--accent-soft); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .vision-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .product-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .story-grid { grid-template-columns: 1fr; gap: 2rem; }
  .mission-grid { grid-template-columns: 1fr; border-top: 0; }
  .m-item { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; padding-right: 0; }
  .m-item:first-child { padding-left: 0; }
  .hero-figure { aspect-ratio: 16 / 10; }
}
@media (max-width: 560px) {
  .nav-right { gap: 0.9rem; }
  .nav-link.hide-sm { display: none; }
  .hero h1 { font-size: clamp(2.4rem, 11vw, 3.2rem); }
  .demo-body { padding: 1rem 0.85rem; }
  .product-id { gap: 0.6rem; }
}

/* ============================================================
   SUBPAGES (thesis.html / story.html)
   ============================================================ */
.back-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted); transition: color 0.2s, gap 0.2s;
}
.back-link .arr { color: var(--accent); transition: transform 0.2s ease; }
.back-link:hover { color: var(--ink); }
.back-link:hover .arr { transform: translateX(-4px); }

.article { padding-top: clamp(2.5rem, 6vw, 4.5rem); padding-bottom: clamp(4rem, 8vw, 7rem); }
.article-head { max-width: 60rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.article-head .eyebrow { margin: clamp(1.8rem, 4vw, 2.8rem) 0 1.4rem; }
.article-head h1 {
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  line-height: 1.0; max-width: 16ch; margin-bottom: 1.6rem;
}
.article-head h1 .em { color: var(--accent); }
:root[data-display="serif"] .article-head h1 .em { font-style: italic; }
.article-lede {
  font-size: clamp(1.1rem, 1.9vw, 1.4rem); line-height: 1.55; color: var(--ink-2); max-width: 46ch;
}

/* big pull quote */
.pull {
  border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2);
  padding: clamp(2rem, 4vw, 3rem) 0; margin: clamp(2.5rem, 5vw, 4rem) 0;
}
.pull blockquote {
  font-family: var(--font-display); font-weight: var(--display-weight);
  font-size: clamp(1.6rem, 3.4vw, 2.8rem); line-height: 1.18; letter-spacing: var(--display-track);
  color: var(--ink); max-width: 24ch;
}
.pull .qmark { color: var(--accent); }
:root[data-display="serif"] .pull blockquote { font-style: italic; }
.pull cite {
  display: block; margin-top: 1.4rem; font-style: normal;
  font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted);
}

/* two-column article body */
.article-grid { display: grid; grid-template-columns: 0.42fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.article-grid + .article-grid { margin-top: clamp(2.5rem, 5vw, 4rem); padding-top: clamp(2.5rem, 5vw, 4rem); border-top: 1px solid var(--line); }
.article-grid h2 {
  font-size: clamp(1.3rem, 2.2vw, 1.7rem); line-height: 1.12; color: var(--ink); max-width: 16ch;
}
.article-grid .col-num { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; color: var(--accent); display: block; margin-bottom: 0.9rem; }
.article-prose p { font-size: 1.05rem; line-height: 1.75; color: var(--ink-2); margin-bottom: 1.2rem; max-width: 60ch; }
.article-prose p:last-child { margin-bottom: 0; }
.article-prose strong { color: var(--ink); font-weight: 600; }
.article-prose em { color: var(--accent); font-style: normal; }

/* struck assumptions list (reused, vertical) */
.assume-stack { display: flex; flex-wrap: wrap; gap: 0.55rem; margin: 1.6rem 0; }
.assume-stack span {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.02em;
  color: var(--muted); text-decoration: line-through; text-decoration-color: var(--accent-line); text-decoration-thickness: 1.5px;
  border: 1px solid var(--line-2); border-radius: 999px; padding: 0.45rem 0.95rem; white-space: nowrap;
}

/* video block — portrait (phone-shot) */
.video-block {
  margin: clamp(2.5rem, 5vw, 4rem) 0;
  display: grid; grid-template-columns: minmax(0, 340px) 1fr;
  gap: clamp(2rem, 5vw, 4rem); align-items: center;
}
.video-portrait {
  position: relative; border-radius: 20px; overflow: hidden;
  border: 1px solid var(--line-2); background: var(--dark); aspect-ratio: 9 / 16;
  box-shadow: 0 40px 80px -40px rgba(0,0,0,0.55);
}
.video-portrait video { width: 100%; height: 100%; object-fit: cover; display: block; background: var(--dark); }

.video-side .eyebrow { margin-bottom: 1.2rem; }
.video-side .video-headline {
  font-family: var(--font-display); font-weight: var(--display-weight);
  font-size: clamp(1.6rem, 3vw, 2.4rem); line-height: 1.08; letter-spacing: var(--display-track);
  color: var(--ink); margin-bottom: 1.1rem;
}
:root[data-display="serif"] .video-side .video-headline { font-style: italic; }
.video-side p { font-size: 1.02rem; line-height: 1.7; color: var(--ink-2); max-width: 42ch; }
.video-meta { display: flex; gap: 2.5rem; margin-top: 1.8rem; padding-top: 1.6rem; border-top: 1px solid var(--line); }
.video-meta .vk { display: block; font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.video-meta .vv { display: block; font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; color: var(--ink); margin-top: 0.3rem; }

@media (max-width: 720px) {
  .video-block { grid-template-columns: 1fr; gap: 1.8rem; justify-items: center; }
  .video-portrait { width: 100%; max-width: 300px; }
  .video-side { text-align: left; width: 100%; }
}

/* facts rail */
.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line-2); margin: clamp(2.5rem, 5vw, 3.5rem) 0; }
.fact { padding: 1.6rem 1.6rem 1.8rem; border-left: 1px solid var(--line); }
.fact:first-child { border-left: 0; padding-left: 0; }
.fact .fk { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.fact .fv { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.1rem, 2vw, 1.4rem); color: var(--ink); margin-top: 0.5rem; letter-spacing: -0.01em; line-height: 1.2; }

/* closing CTA band */
.article-cta { border-top: 1px solid var(--line); padding-top: clamp(2.5rem, 5vw, 3.5rem); margin-top: clamp(3rem, 6vw, 5rem); display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.article-cta .ac-head { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.3rem, 2.4vw, 1.9rem); letter-spacing: var(--display-track); color: var(--ink); max-width: 18ch; line-height: 1.15; }

@media (max-width: 820px) {
  .article-grid { grid-template-columns: 1fr; gap: 1rem; }
  .article-grid h2 { max-width: none; }
  .facts { grid-template-columns: 1fr; border-top: 0; }
  .fact { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; padding-right: 0; }
}