/* ============================================================
   TANDEM — design tokens & base styles
   Editorial dark + electric blue accent. Geist + Geist Mono.
   ============================================================ */

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

:root {
  /* Base */
  --bg:           #0A0A0A;
  --fg:           #FAFAFA;
  --mute:         #8A8A8E;
  --mute-2:       #5C5C60;
  --line:         #1A1A1A;
  --line-2:       #232325;

  /* Depth */
  --d-0: #0A0A0A;
  --d-1: #0F1011;
  --d-2: #131416;
  --d-3: #191A1D;
  --d-4: #232529;

  /* Accent (electric blue) */
  --accent:       #0066FF;
  --accent-soft:  rgba(0, 102, 255, 0.18);
  --accent-glow:  rgba(0, 102, 255, 0.45);
  --accent-hover: #2A7AFF;
  --accent-fg:    #FFFFFF;

  /* Decorative */
  --gradient-hero: radial-gradient(120% 80% at 50% 100%, rgba(0,102,255,0.35) 0%, rgba(0,32,96,0.08) 40%, transparent 70%);
  --gradient-edge: linear-gradient(180deg, rgba(10,10,10,0) 0%, rgba(10,10,10,0.6) 60%, rgba(10,10,10,1) 100%);

  /* Type scale */
  --t-mega:   clamp(72px, 13vw, 220px);
  --t-hero:   clamp(56px, 9vw, 152px);
  --t-h1:     clamp(40px, 6vw, 96px);
  --t-h2:     clamp(32px, 4.4vw, 72px);
  --t-h3:     clamp(22px, 2.4vw, 32px);
  --t-h4:     clamp(18px, 1.6vw, 22px);
  --t-body:   17px;
  --t-small:  14px;
  --t-mono:   12px;

  /* Layout */
  --pad: clamp(20px, 3.5vw, 56px);
  --max: 1480px;
  --gap-section: clamp(96px, 14vw, 200px);
  --gap-block: clamp(40px, 6vw, 96px);

  /* Borders & corners */
  --r-card: 18px;
  --r-card-lg: 24px;
  --r-action: 999px;
  --r-input: 10px;

  /* Fonts */
  --font-sans: 'Geist', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Easing */
  --ease-out: cubic-bezier(.2, .7, .2, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: var(--t-body);
  line-height: 1.5;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  overflow-x: hidden;
  position: relative;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

::selection { background: var(--accent); color: #fff; }

/* Subtle film grain over the whole page */
.grain {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 90;
  opacity: 0.06;
  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 1  0 0 0 0 1  0 0 0 0 1  0 0 0 1 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ============================================================
   Layout primitives
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section {
  position: relative;
  padding-block: var(--gap-section);
}

.section + .section { padding-top: 0; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px; border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,102,255,0.18);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 32px;
  align-items: end;
  margin-bottom: clamp(40px, 6vw, 80px);
  padding-block: 24px;
  border-top: 1px solid var(--line);
}
.section-head h2 {
  margin: 0;
  font-size: var(--t-h2);
  line-height: 0.96;
  letter-spacing: -0.035em;
  font-weight: 500;
}
.section-head p {
  margin: 0;
  color: var(--mute);
  font-size: var(--t-h4);
  max-width: 56ch;
  line-height: 1.35;
}

@media (max-width: 760px) {
  .section-head {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  height: 52px;
  padding-inline: 22px;
  border-radius: var(--r-action);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.005em;
  white-space: nowrap;
  transition: background .25s var(--ease-out), border-color .25s var(--ease-out), color .25s var(--ease-out), transform .25s var(--ease-out);
  user-select: none;
}
.btn .arrow {
  display: inline-block;
  transition: transform .35s var(--ease-out);
}
.btn:hover .arrow { transform: translateX(4px); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-fg);
  box-shadow: 0 0 0 1px rgba(0,102,255,0.6) inset, 0 12px 36px -12px rgba(0,102,255,0.65);
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-secondary {
  background: transparent;
  color: var(--fg);
  border-color: var(--line-2);
}
.btn-secondary:hover {
  border-color: var(--fg);
  background: var(--d-1);
}

.btn-ghost {
  background: transparent; color: var(--fg);
  height: 40px; padding-inline: 14px;
  font-size: 14px;
}
.btn-ghost:hover { background: var(--d-2); }

.btn-sm { height: 40px; padding-inline: 16px; font-size: 14px; }

/* Tag / chip */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  height: 28px; padding-inline: 12px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: var(--d-1);
  color: var(--mute);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ============================================================
   Divider with mono caption
   ============================================================ */
.rule {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute-2);
}
.rule::before, .rule::after {
  content: "";
  height: 1px; background: var(--line);
}
.rule::before { width: 24px; }
.rule::after { width: 100%; }

/* ============================================================
   Card
   ============================================================ */
.card {
  background: var(--d-1);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  position: relative;
  transition: border-color .35s var(--ease-out), background .35s var(--ease-out), transform .35s var(--ease-out);
}
.card:hover { border-color: var(--line-2); }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 80;
  padding: 16px var(--pad);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  pointer-events: none;
}
.site-header > * { pointer-events: auto; }

.brand-mark {
  display: inline-flex; align-items: center;
  height: 44px;
  color: var(--fg);
  font-weight: 500;
  letter-spacing: -0.01em;
}
.brand-mark .word { font-size: 17px; }
.brand-mark .meta { font-family: var(--font-mono); font-size: 11px; color: var(--mute); letter-spacing: 0.05em; padding-left: 8px; border-left: 1px solid var(--line-2); margin-left: 8px; }

.nav {
  display: flex; align-items: center; gap: 4px;
  height: 44px; padding: 4px;
  border-radius: var(--r-action);
  border: 1px solid var(--line);
  background: rgba(15,16,17,0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.nav a {
  height: 36px; padding-inline: 14px;
  display: inline-flex; align-items: center;
  border-radius: 999px;
  font-size: 14px;
  color: var(--mute);
  transition: color .2s var(--ease-out), background .2s var(--ease-out);
}
.nav a:hover { color: var(--fg); background: var(--d-3); }

.header-right {
  display: flex; align-items: center; gap: 8px;
}
.lang-switch {
  display: inline-flex; height: 44px; padding: 4px;
  border-radius: var(--r-action);
  border: 1px solid var(--line);
  background: rgba(15,16,17,0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.lang-switch button {
  height: 36px; min-width: 44px;
  border: 0; background: transparent;
  color: var(--mute);
  border-radius: 999px;
  letter-spacing: inherit;
  font-family: inherit;
  font-size: inherit;
  text-transform: inherit;
}
.lang-switch button.active { background: var(--fg); color: var(--bg); }

@media (max-width: 880px) {
  .nav { display: none; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  padding-top: 110px;
  padding-bottom: 64px;
  display: grid;
  grid-template-rows: 1fr auto;
  isolation: isolate;
  overflow: hidden;
}
.hero-canvas {
  position: absolute; inset: 0;
  z-index: -1;
}
.hero-canvas::after {
  content: ""; position: absolute; inset: 0;
  background: var(--gradient-edge);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-self: end;
}

.hero-status {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.hero-status .live {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--fg);
}
.hero-status .live .pulse {
  width: 7px; height: 7px; border-radius: 999px;
  background: #00C853;
  box-shadow: 0 0 0 0 rgba(0,200,83,0.6);
  animation: pulse 1.6s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(0,200,83,0.6); }
  70%  { box-shadow: 0 0 0 8px rgba(0,200,83,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,200,83,0); }
}

.hero-headline {
  font-size: var(--t-hero);
  line-height: 0.92;
  letter-spacing: -0.045em;
  font-weight: 600;
  margin: 0;
  max-width: 14ch;
}
.hero-headline .accent {
  color: var(--accent);
}

/* .glass-text removed — second line back to default headline style.
   Will be restored once @user supplies a custom glass-text asset. */

.hero-bottom {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 32px;
  align-items: end;
  margin-top: clamp(28px, 4vw, 56px);
}
.hero-sub {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--mute);
  max-width: 46ch;
  line-height: 1.5;
}
.hero-sub strong { color: var(--fg); font-weight: 500; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }

@media (max-width: 760px) {
  .hero-bottom { grid-template-columns: 1fr; }
  .hero-cta { justify-content: flex-start; }
}

/* ============================================================
   Marquee
   ============================================================ */
.marquee {
  border-block: 1px solid var(--line);
  background: var(--d-1);
  overflow: hidden;
  padding-block: 22px;
}
.marquee-track {
  display: flex; gap: 64px;
  animation: marquee 50s linear infinite;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mute);
}
.marquee-track span { display: inline-flex; align-items: center; gap: 64px; }
.marquee-track .dot { width: 4px; height: 4px; background: var(--accent); border-radius: 999px; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============================================================
   Manifesto / Comparison
   ============================================================ */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-card-lg);
  overflow: hidden;
  background: var(--d-1);
}
.compare-col {
  padding: clamp(24px, 3vw, 40px);
}
.compare-col + .compare-col {
  border-left: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(0,102,255,0.06) 0%, transparent 60%), var(--d-1);
}
.compare-col h3 {
  font-size: 14px;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 24px 0;
  font-weight: 500;
}
.compare-col h3 .tag {
  display: inline-block;
  font-family: var(--font-mono);
  margin-left: 8px;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 10px;
  background: var(--d-3);
  color: var(--mute);
  white-space: nowrap;
  vertical-align: middle;
}
.compare-col.us h3 .tag { background: var(--accent); color: #fff; }
.compare-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.compare-col li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  font-size: var(--t-h4);
  letter-spacing: -0.01em;
  color: var(--mute);
  align-items: baseline;
}
.compare-col.us li { color: var(--fg); }
.compare-col li .num {
  font-family: var(--font-mono); font-size: 11px; color: var(--mute-2);
  letter-spacing: 0.08em;
}

@media (max-width: 760px) {
  .compare { grid-template-columns: 1fr; }
  .compare-col + .compare-col { border-left: 0; border-top: 1px solid var(--line); }
}

/* ============================================================
   Services
   ============================================================ */
.services {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: minmax(220px, auto);
  gap: 16px;
}
.service {
  grid-column: span 2;
  padding: clamp(24px, 2.4vw, 32px);
  display: flex; flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
}
.service.large { grid-column: span 3; }
.service.wide  { grid-column: span 6; }

.service .num {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.06em; color: var(--mute);
}
.service h3 {
  margin: 0;
  font-size: clamp(28px, 3vw, 40px);
  letter-spacing: -0.03em;
  font-weight: 500;
  line-height: 1;
}
.service p {
  margin: 0;
  color: var(--mute);
  font-size: 15px;
  line-height: 1.45;
  max-width: 38ch;
}
.service .deliverables {
  margin-top: auto;
  display: flex; flex-wrap: wrap; gap: 6px;
  padding-top: 18px;
  border-top: 1px dashed var(--line-2);
}
.service .timeframe {
  position: absolute; top: 24px; right: 24px;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.05em;
  color: var(--accent);
}
.service .visual {
  position: absolute; inset: 0;
  pointer-events: none;
  opacity: 0.6;
  z-index: 0;
}
.service > * { position: relative; z-index: 1; }

.service:hover { border-color: var(--accent); background: var(--d-2); }

@media (max-width: 1080px) {
  .services { grid-template-columns: repeat(2, 1fr); }
  .service, .service.large, .service.wide { grid-column: span 1; }
  .service.wide { grid-column: span 2; }
}
@media (max-width: 640px) {
  .services { grid-template-columns: 1fr; }
  .service, .service.wide { grid-column: span 1; }
}

/* ============================================================
   Process
   ============================================================ */
.process {
  border: 1px solid var(--line);
  border-radius: var(--r-card-lg);
  background: var(--d-1);
  overflow: hidden;
}
.process-header {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute);
}
.process-header > div {
  padding: 16px 24px;
  border-right: 1px solid var(--line);
}
.process-header > div:last-child { border-right: 0; }
.process-header .tag-day { color: var(--accent); }

.process-timeline {
  position: relative;
  padding: 32px 24px;
}
.process-track {
  position: relative;
  height: 4px; border-radius: 999px;
  background: var(--d-3);
  margin: 32px 0 56px;
}
.process-track .fill {
  position: absolute; top: 0; bottom: 0; left: 0;
  width: 100%;
  background: linear-gradient(90deg, var(--fg) 0%, var(--accent) 100%);
  border-radius: inherit;
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  position: relative;
}
.step {
  position: relative;
  padding-top: 60px;
  padding-right: 8px;
}
.step::before {
  content: "";
  position: absolute; top: -56px; left: 0;
  width: 12px; height: 12px;
  border-radius: 999px;
  background: var(--bg);
  border: 2px solid var(--fg);
  box-shadow: 0 0 0 4px var(--d-1);
}
.step.future::before { border-color: var(--mute); }
.step .step-num {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; color: var(--mute);
  margin-bottom: 6px;
}
.step h4 {
  margin: 0 0 6px 0;
  font-size: 18px; letter-spacing: -0.01em;
  font-weight: 500;
}
.step p {
  margin: 0; font-size: 13px; color: var(--mute); line-height: 1.4;
}
.step .day {
  position: absolute; top: -84px; left: 0;
  font-family: var(--font-mono); font-size: 11px;
  color: var(--mute-2); letter-spacing: 0.06em;
}
.step.active .day { color: var(--accent); }
.step.active::before {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--d-1), 0 0 0 8px rgba(0,102,255,0.25);
}

@media (max-width: 1080px) {
  .process-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .process-steps { grid-template-columns: 1fr; }
  .process-track { display: none; }
  .step { padding-top: 0; }
  .step::before, .step .day { display: none; }
}

/* ============================================================
   Work
   ============================================================ */
.work {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.work-card {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--r-card-lg);
  overflow: hidden;
  background: var(--d-1);
  transition: transform .5s var(--ease-out), border-color .35s var(--ease-out);
}
.work-card:hover { transform: translateY(-4px); border-color: var(--line-2); }
.work-card.tall { grid-row: span 2; }

.work-cover {
  position: relative;
  aspect-ratio: 16 / 11;
  overflow: hidden;
  background: var(--d-2);
}
.work-cover.tall { aspect-ratio: 4 / 5; }
.work-cover .cover-canvas {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
}
.work-cover .label {
  position: absolute; top: 16px; left: 16px; right: 16px;
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; color: rgba(250,250,250,0.65);
}

.work-meta {
  padding: 22px 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 16px;
  align-items: end;
}
.work-meta h3 {
  margin: 0;
  font-size: clamp(22px, 2.4vw, 30px);
  letter-spacing: -0.02em;
  font-weight: 500;
}
.work-meta .blurb {
  grid-column: 1 / -1;
  color: var(--mute); font-size: 14px;
  line-height: 1.45;
}
.work-meta .stats {
  font-family: var(--font-mono); font-size: 11px; color: var(--mute);
  text-align: right;
  letter-spacing: 0.06em; text-transform: uppercase;
  white-space: nowrap;
}

@media (max-width: 880px) {
  .work { grid-template-columns: 1fr; }
  .work-card.tall { grid-row: auto; }
}

/* ============================================================
   Why Tandem
   ============================================================ */
.why {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 24px;
}
.why-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.stat {
  padding: 28px 28px 32px;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: var(--d-1);
}
.stat .v {
  font-size: clamp(48px, 6vw, 84px);
  letter-spacing: -0.045em;
  line-height: 0.95;
  font-weight: 400;
  font-family: var(--font-sans);
  color: var(--fg);
  display: flex; align-items: baseline; gap: 6px;
}
.stat .v sup { font-size: 0.4em; color: var(--accent); top: -0.3em; }
.stat .v em { font-style: normal; color: var(--accent); }
.stat .l {
  margin-top: 12px; font-size: 13px; color: var(--mute); line-height: 1.4;
  font-family: var(--font-mono); letter-spacing: 0.04em; text-transform: uppercase;
}

.founder {
  border: 1px solid var(--line);
  border-radius: var(--r-card-lg);
  background: var(--d-1);
  padding: 28px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 22px;
  position: relative;
  overflow: hidden;
}
.founder::after {
  content: ""; position: absolute; inset: -1px;
  background: radial-gradient(60% 80% at 80% 0%, rgba(0,102,255,0.18) 0%, transparent 60%);
  pointer-events: none;
  border-radius: inherit;
}
.founder > * { position: relative; }
.founder-photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-card);
  background-size: cover;
  background-position: center;
  background-color: var(--d-3);
  border: 1px solid var(--line-2);
}
.founder h3 {
  margin: 0; font-size: clamp(22px, 2vw, 28px);
  letter-spacing: -0.02em; font-weight: 500;
  text-wrap: balance;
}
.founder p { margin: 0; color: var(--mute); font-size: 14px; line-height: 1.5; }
.founder .signature {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px; color: var(--mute);
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.founder .signature .dot { width: 6px; height: 6px; background: var(--accent); border-radius: 999px; }

@media (max-width: 1080px) {
  .why { grid-template-columns: 1fr; }
}
@media (max-width: 540px) {
  .why-stats { grid-template-columns: 1fr; }
}

/* ============================================================
   FAQ
   ============================================================ */
.faq {
  border-top: 1px solid var(--line);
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-q {
  width: 100%;
  display: grid;
  grid-template-columns: 48px 1fr 28px;
  gap: 16px; align-items: center;
  padding: 28px 4px;
  background: transparent; border: 0; color: inherit;
  text-align: left;
  font-size: clamp(20px, 2vw, 28px);
  letter-spacing: -0.02em;
  font-weight: 500;
  transition: color .25s var(--ease-out);
}
.faq-q:hover { color: var(--accent); }
.faq-q .num {
  font-family: var(--font-mono); font-size: 12px; color: var(--mute);
  letter-spacing: 0.06em;
}
.faq-q .toggle {
  width: 28px; height: 28px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px; border: 1px solid var(--line-2);
  font-size: 14px; color: var(--mute);
  transition: transform .35s var(--ease-out), background .25s var(--ease-out), color .25s var(--ease-out);
}
.faq-item.open .faq-q .toggle {
  background: var(--accent); border-color: var(--accent); color: #fff;
  transform: rotate(45deg);
}
.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .4s var(--ease-out);
}
.faq-item.open .faq-a { grid-template-rows: 1fr; }
.faq-a > div {
  overflow: hidden;
}
.faq-a-inner {
  padding: 0 4px 28px 64px;
  color: var(--mute);
  max-width: 70ch;
  font-size: 16px; line-height: 1.55;
}

@media (max-width: 640px) {
  .faq-q { grid-template-columns: 1fr 28px; }
  .faq-q .num { display: none; }
  .faq-a-inner { padding-left: 4px; }
}

/* ============================================================
   CTA
   ============================================================ */
.cta {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-card-lg);
  overflow: hidden;
  padding: clamp(40px, 6vw, 80px);
  background: linear-gradient(180deg, var(--d-1) 0%, var(--d-0) 60%);
  isolation: isolate;
}
.cta::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(60% 80% at 50% 110%, rgba(0,102,255,0.45) 0%, transparent 70%),
    radial-gradient(40% 60% at 20% 0%, rgba(0,102,255,0.10) 0%, transparent 70%);
  z-index: -1;
}
.cta::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(0deg, var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: -1px -1px;
  mask-image: radial-gradient(70% 70% at 50% 50%, #000 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(70% 70% at 50% 50%, #000 0%, transparent 80%);
  opacity: 0.4;
  pointer-events: none;
  z-index: -1;
}
.cta h2 {
  margin: 0;
  font-size: var(--t-hero);
  letter-spacing: -0.04em;
  line-height: 0.92;
  font-weight: 500;
  max-width: 14ch;
}
.cta h2 em { font-style: italic; font-family: 'Times New Roman', serif; font-weight: 400; }
.cta-row {
  margin-top: 40px;
  display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center;
}
.cta-aside {
  margin-top: 32px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}
.cta-aside .cell {
  font-family: var(--font-mono); font-size: 12px; color: var(--mute);
  letter-spacing: 0.06em; text-transform: uppercase;
}
.cta-aside .cell strong { display: block; color: var(--fg); font-weight: 500; margin-top: 6px; font-size: 14px; }
@media (max-width: 720px) {
  .cta-aside { grid-template-columns: 1fr; gap: 12px; }
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  padding: 64px var(--pad) 32px;
  border-top: 1px solid var(--line);
  display: grid; gap: 64px;
  margin-top: var(--gap-section);
}
.footer-mark {
  font-size: clamp(60px, 16vw, 240px);
  letter-spacing: -0.05em;
  line-height: 0.85;
  font-weight: 500;
  margin: 0;
  text-wrap: balance;
}
.footer-mark .accent { color: var(--accent); }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 320px));
  gap: 48px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}
.footer-col h5 {
  margin: 0 0 12px 0;
  font-family: var(--font-mono); font-size: 11px; color: var(--mute);
  letter-spacing: 0.08em; text-transform: uppercase; font-weight: 500;
}
.footer-col a, .footer-col span {
  display: block;
  font-size: 14px; color: var(--fg);
  padding: 4px 0;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: 12px; color: var(--mute-2);
  letter-spacing: 0.05em;
}
@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* ============================================================
   Reveal-on-scroll utility
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
.reveal.in {
  opacity: 1; transform: translateY(0);
}