/* ============================================================
   OfferShark — Landing Page
   Dark, predatory, premium. Bite into the offer.
   ============================================================ */

/* ---- Tokens ---- */
:root {
  /* Background darkness is tweakable via --bg-base */
  --bg-base: #08090C;
  --bg: var(--bg-base);
  --bg-elev: color-mix(in oklab, var(--bg-base) 86%, #ffffff);
  --bg-elev-2: color-mix(in oklab, var(--bg-base) 78%, #ffffff);

  --surface: rgba(255, 255, 255, 0.025);
  --surface-2: rgba(255, 255, 255, 0.045);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --text: #EAEEF3;
  --text-dim: #9AA3B2;
  --text-faint: #626B7B;

  /* Accent — tweakable. Shark water: deep teal -> electric cyan */
  --acc-1: #0FB5BA;
  --acc-2: #22D3EE;
  --acc-grad: linear-gradient(115deg, var(--acc-1), var(--acc-2));
  --acc-soft: color-mix(in oklab, var(--acc-2) 18%, transparent);
  --acc-glow: color-mix(in oklab, var(--acc-1) 40%, transparent);

  /* Type */
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --maxw: 1200px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 16px;
  --radius-lg: 22px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.02;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0; text-wrap: pretty; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--acc-2);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--acc-2);
  opacity: 0.6;
}

.section { padding-block: clamp(80px, 11vw, 150px); position: relative; }
.section-tight { padding-block: clamp(56px, 7vw, 90px); }

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

/* ---- Buttons ---- */
.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  border-radius: 999px;
  padding: 14px 24px;
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease),
              border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(0.99); }

.btn-primary {
  background: var(--acc-grad);
  color: #04201f;
  font-weight: 700;
  box-shadow: 0 0 0 0 var(--acc-glow);
}
.btn-primary:hover {
  box-shadow: 0 8px 34px -8px var(--acc-glow);
  transform: translateY(-2px);
}
.btn-ghost {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { background: var(--surface-2); border-color: var(--border-strong); }

.btn .arrow { transition: transform 0.25s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 60;
  backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--bg) 72%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav.scrolled { border-bottom-color: var(--border); }
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-links {
  display: flex;
  gap: 30px;
  font-size: 15px;
  color: var(--text-dim);
  font-weight: 500;
}
.nav-links a { transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-cta .btn { padding: 10px 18px; font-size: 14px; }
@media (max-width: 880px) {
  .nav-links { display: none; }
}

/* ---- Logo ---- */
.logo { display: inline-flex; align-items: center; gap: 11px; }
.logo .mark { width: 30px; height: 30px; flex: none; }
.logo .word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: -0.04em;
  white-space: nowrap;
}
.logo .word .fin { display: inline-block; transform: skewX(-11deg); color: var(--acc-2); }

/* ============================================================
   HERO
   ============================================================ */
.hero { position: relative; padding-top: clamp(40px, 7vw, 84px); padding-bottom: clamp(60px, 8vw, 110px); overflow: hidden; }

/* shark-eye orb */
.orb {
  position: absolute;
  top: -8%; left: 22%;
  width: 720px; height: 720px;
  background: radial-gradient(circle at 50% 50%,
      var(--acc-glow) 0%, transparent 62%);
  filter: blur(20px);
  opacity: 0.45;
  pointer-events: none;
  z-index: 0;
}
.orb::after {
  content: "";
  position: absolute;
  inset: 38%;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in oklab, var(--acc-1) 60%, transparent), transparent 70%);
  filter: blur(8px);
}

/* faint dorsal-fin silhouette */
.fin-silhouette {
  position: absolute;
  right: -4%;
  bottom: -10%;
  width: 50vw;
  max-width: 760px;
  opacity: 0.05;
  z-index: 0;
  pointer-events: none;
  color: var(--acc-2);
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: clamp(32px, 5vw, 70px);
  align-items: center;
}
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
}

.hero h1 {
  font-size: clamp(52px, 8.2vw, 98px);
  line-height: 0.94;
  letter-spacing: -0.04em;
  margin-top: 26px;
}
.hero h1 .accent {
  background: var(--acc-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Hero brand-led H1：把 "OfferShark" 当主语，复用 nav 里的 skewed-S */
.hero .brand-h1 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-top: 26px;
  white-space: nowrap;
}
.hero .brand-h1 .fin {
  display: inline-block;
  transform: skewX(-11deg);
  color: var(--acc-2);
}
.hero .brand-h1 .dot {
  color: var(--acc-2);
  margin-left: 2px;
}

/* Tagline：原本的 "Bite into the offer." 降一级到这里，一行展示 */
.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(28px, 4.2vw, 52px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-top: 18px;
  white-space: nowrap;     /* 强制一行；窄屏 fallback 见 media query */
}
.hero-tagline .accent {
  background: var(--acc-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
@media (max-width: 940px) {
  .hero-tagline { white-space: normal; }
}
.hero-sub {
  font-size: clamp(18px, 2vw, 22px);
  color: var(--text-dim);
  max-width: 33ch;
  margin-top: 26px;
  line-height: 1.5;
  font-weight: 400;
}
.hero-cta { display: flex; gap: 14px; margin-top: 36px; flex-wrap: wrap; align-items: center; }
.hero-trust {
  margin-top: 18px;
  font-size: 13px;
  color: var(--text-faint);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.hero-trust::before {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--acc-2);
  box-shadow: 0 0 8px var(--acc-glow);
}

/* ---- Hero product visual: zoom call + floating overlay ---- */
.stage {
  position: relative;
  aspect-ratio: 4 / 3.2;
  width: 100%;
}
.zoom {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(160deg, #14171d, #0c0e12);
  overflow: hidden;
  filter: saturate(0.7) brightness(0.62);
  box-shadow: 0 40px 90px -50px #000;
}
.zoom-bar {
  height: 34px;
  display: flex; align-items: center; gap: 7px;
  padding: 0 14px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}
.zoom-bar .dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.16); }
.zoom-bar .ztitle { margin-left: 10px; font-size: 12px; color: var(--text-faint); font-family: var(--font-mono); }
.zoom-grid {
  position: absolute;
  inset: 34px 0 56px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 14px;
}
.ztile {
  border-radius: 12px;
  background: radial-gradient(120% 120% at 50% 30%, #20242c, #14171c);
  border: 1px solid rgba(255,255,255,0.05);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.ztile .face {
  width: 44%; aspect-ratio: 1; border-radius: 50%;
  background: linear-gradient(160deg, #2c323c, #1b1f26);
}
.ztile.you { outline: 2px solid var(--acc-soft); }

/* speaker glow: cyan ring + halo while this tile is "talking" */
.ztile.speaking {
  outline: 2px solid var(--acc-2);
  box-shadow: 0 0 0 4px var(--acc-glow), 0 0 24px var(--acc-glow);
  transition: outline-color 0.2s, box-shadow 0.2s;
}
.ztile.speaking::before {
  content: "";
  position: absolute;
  top: 8px; right: 8px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--acc-2);
  box-shadow: 0 0 6px var(--acc-2);
  animation: speakingPulse 1.2s ease-in-out infinite;
}
@keyframes speakingPulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50%      { opacity: 1;   transform: scale(1.3); }
}
.ztile .name {
  position: absolute; left: 10px; bottom: 8px;
  font-size: 10px; color: var(--text-faint); font-family: var(--font-mono);
}
.zoom-controls {
  position: absolute; left: 0; right: 0; bottom: 0; height: 56px;
  display: flex; align-items: center; justify-content: center; gap: 14px;
  background: rgba(0,0,0,0.3);
  border-top: 1px solid var(--border);
}
.zctl { width: 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,0.07); }
.zctl.end { background: #c8313a; width: 52px; border-radius: 999px; }

/* annotation arrow that calls out the overlay's invisibility */
.invisible-badge {
  position: absolute;
  top: 12%;
  left: -4%;
  z-index: 5;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--acc-2);
  pointer-events: none;
  animation: fadeIn 0.8s var(--ease) 0.6s both;
}
.invisible-badge svg {
  width: 70px;
  height: 52px;
  opacity: 0.75;
  flex-shrink: 0;
}
.invisible-badge span {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  margin-top: 4px;
}
.invisible-badge span b {
  color: var(--acc-2);
  font-weight: 600;
}
@media (max-width: 940px) {
  .invisible-badge { display: none; }   /* 移动端右侧布局变窄，标签会撞，直接隐藏 */
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* the floating overlay panel — the actual product */
.overlay {
  position: absolute;
  right: -6%;
  bottom: 6%;
  width: min(92%, 420px);
  z-index: 4;
  border-radius: 18px;
  background: color-mix(in oklab, #0a0c10 78%, transparent);
  backdrop-filter: blur(22px);
  border: 1px solid var(--border-strong);
  box-shadow: 0 40px 80px -30px #000, 0 0 0 1px rgba(255,255,255,0.02) inset,
              0 0 50px -16px var(--acc-glow);
  overflow: hidden;
}
@media (max-width: 940px) {
  .overlay { right: 2%; width: min(86%, 400px); }
}
.ov-head {
  display: flex; align-items: center; gap: 9px;
  padding: 13px 15px;
  border-bottom: 1px solid var(--border);
}
.ov-head .mark { width: 18px; height: 18px; }
.ov-head .ttl { font-family: var(--font-display); font-weight: 600; font-size: 14px; letter-spacing: -0.02em; }
.ov-head .hidden-badge {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--acc-2);
  border: 1px solid var(--acc-soft);
  border-radius: 999px;
  padding: 4px 9px;
  display: inline-flex; align-items: center; gap: 5px;
}
.ov-head .hidden-badge .pulse {
  width: 6px; height: 6px; border-radius: 50%; background: var(--acc-2);
  box-shadow: 0 0 0 0 var(--acc-2);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--acc-glow); }
  70% { box-shadow: 0 0 0 7px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.ov-tabs { display: flex; gap: 6px; padding: 11px 15px 0; }
.ov-tab {
  font-size: 11px; font-weight: 600;
  color: var(--text-faint);
  padding: 5px 10px; border-radius: 999px;
  border: 1px solid transparent;
  cursor: default;
  transition: all 0.3s var(--ease);
}
.ov-tab.active { color: var(--acc-2); border-color: var(--acc-soft); background: var(--acc-soft); }

.ov-body { padding: 13px 15px 17px; }
.ov-q {
  font-size: 12.5px; color: var(--text-dim);
  font-family: var(--font-mono);
  line-height: 1.45;
  min-height: 2.6em;
}
.ov-q .who { color: var(--acc-2); }
.ov-a {
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--text);
  min-height: 4.4em;
}
.ov-a .cursor {
  display: inline-block; width: 7px; height: 15px;
  background: var(--acc-2); vertical-align: -2px; margin-left: 2px;
  animation: blink 1s steps(2) infinite;
}
/* Q 区也有打字 cursor — 模拟"实时转写"光标，体积小一点 */
.ov-q .q-cursor {
  display: inline-block; width: 5px; height: 11px;
  background: var(--text-dim); vertical-align: -1px; margin-left: 2px;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.ov-foot {
  display: flex; align-items: center; gap: 8px;
  padding: 11px 15px;
  border-top: 1px solid var(--border);
  font-size: 11px; color: var(--text-faint);
  font-family: var(--font-mono);
  white-space: nowrap;
}
.ov-foot > span { flex: 0 0 auto; }

/* 状态点：随 state 切色 (listening / transcribing / thinking / answering) */
.state-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--acc-2);
  box-shadow: 0 0 6px var(--acc-glow);
  transition: background 0.25s, box-shadow 0.25s;
  animation: dotPulse 1.4s ease-in-out infinite;
}
.state-dot.transcribing { background: #f5b942; box-shadow: 0 0 6px rgba(245,185,66,0.6); }
.state-dot.thinking     { background: #ff8a4c; box-shadow: 0 0 6px rgba(255,138,76,0.6); animation-duration: 0.8s; }
.state-dot.answering    { background: var(--acc-2); box-shadow: 0 0 8px var(--acc-glow); }
@keyframes dotPulse {
  0%,100% { opacity: 0.55; transform: scale(1); }
  50%     { opacity: 1;    transform: scale(1.25); }
}
.waveform { display: flex; align-items: center; gap: 3px; height: 16px; margin-left: auto; flex: none; }
.waveform span {
  width: 2.5px; border-radius: 2px; background: var(--acc-2);
  animation: wave 1.1s ease-in-out infinite;
}
@keyframes wave { 0%,100% { height: 4px; opacity: 0.4; } 50% { height: 15px; opacity: 1; } }

/* ============================================================
   WHY NOW strip
   ============================================================ */
.whynow { border-block: 1px solid var(--border); background: var(--surface); }
.whynow .wrap { display: flex; align-items: center; gap: 28px; padding-block: 42px; }
.whynow p {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(20px, 2.6vw, 30px);
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text);
}
.whynow p b { color: var(--acc-2); font-weight: 500; }
@media (max-width: 700px){ .whynow .wrap { flex-direction: column; align-items: flex-start; gap: 18px; } }

/* ============================================================
   FEATURES
   ============================================================ */
.sec-head { max-width: 640px; margin-bottom: clamp(40px, 5vw, 64px); }
.sec-head h2 { font-size: clamp(32px, 4.4vw, 54px); margin-top: 18px; }
.sec-head p { margin-top: 18px; font-size: 19px; color: var(--text-dim); }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 860px){ .features { grid-template-columns: 1fr; } }
.feature {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 28px 34px;
  background: linear-gradient(180deg, var(--surface), transparent);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s var(--ease);
}
.feature:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.feature .num {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em;
  color: var(--acc-2); opacity: 0.8;
}
.feature .ficon {
  width: 46px; height: 46px; margin: 18px 0 22px;
  color: var(--acc-2);
}
.feature h3 { font-size: 23px; letter-spacing: -0.02em; }
.feature p { margin-top: 12px; color: var(--text-dim); font-size: 16.5px; line-height: 1.55; }
.feature .kbd {
  display: inline-flex; gap: 4px; margin-top: 16px;
}
.feature .kbd kbd {
  font-family: var(--font-mono); font-size: 12px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 6px; padding: 3px 7px; color: var(--text);
}

/* ============================================================
   IN THE ROOM — demo strip
   ============================================================ */
.room { background: var(--bg-elev); border-block: 1px solid var(--border); }
.room-demo {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  margin-top: 14px;
}
@media (max-width: 880px){ .room-demo { grid-template-columns: 1fr; } }

.room-tabs { display: flex; flex-direction: column; gap: 10px; }
.room-tab {
  text-align: left;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 14px;
  padding: 17px 18px;
  cursor: pointer;
  color: var(--text-dim);
  transition: all 0.3s var(--ease);
  display: flex; gap: 14px; align-items: flex-start;
}
.room-tab:hover { border-color: var(--border-strong); }
.room-tab.active {
  border-color: var(--acc-soft);
  background: color-mix(in oklab, var(--acc-1) 9%, transparent);
  color: var(--text);
}
.room-tab .ti { width: 26px; height: 26px; flex: none; color: var(--text-faint); transition: color 0.3s; margin-top: 2px; }
.room-tab.active .ti { color: var(--acc-2); }
.room-tab .role { font-family: var(--font-display); font-weight: 600; font-size: 16px; letter-spacing: -0.01em; }
.room-tab .desc { font-size: 13px; margin-top: 3px; color: var(--text-faint); }

.room-screen {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(160deg, #0e1116, #0a0c10);
  padding: clamp(20px, 3vw, 36px);
  min-height: 340px;
  overflow: hidden;
  box-shadow: 0 40px 90px -50px #000;
}
.room-screen .grain {
  position: absolute; inset: 0;
  background: radial-gradient(80% 60% at 80% 0%, var(--acc-soft), transparent 60%);
  opacity: 0.5; pointer-events: none;
}
.room-card {
  position: relative; z-index: 2;
  border-radius: 16px;
  background: color-mix(in oklab, #0a0c10 70%, transparent);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-strong);
  box-shadow: 0 30px 60px -30px #000;
  overflow: hidden;
}
.rc-head { display: flex; align-items: center; gap: 9px; padding: 13px 16px; border-bottom: 1px solid var(--border); }
.rc-head .mark { width: 17px; height: 17px; }
.rc-head .ttl { font-family: var(--font-display); font-weight: 600; font-size: 14px; }
.rc-head .badge {
  margin-left: auto; font-family: var(--font-mono); font-size: 10px;
  color: var(--acc-2); border: 1px solid var(--acc-soft); border-radius: 999px; padding: 3px 8px;
}
.rc-body { padding: 16px; }
.rc-q { font-family: var(--font-mono); font-size: 13px; color: var(--text-dim); line-height: 1.5; }
.rc-q .who { color: var(--acc-2); }
.rc-a { margin-top: 14px; font-size: 15px; line-height: 1.6; }
.rc-a .lead { color: var(--text); }
.rc-a ul { margin: 12px 0 0; padding-left: 18px; color: var(--text-dim); }
.rc-a li { margin: 5px 0; font-size: 14.5px; }
.rc-a .cursor {
  display: inline-block; width: 8px; height: 16px; background: var(--acc-2);
  vertical-align: -3px; animation: blink 1s steps(2) infinite;
}
.room-caption {
  margin-top: 20px; text-align: center;
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(17px, 2vw, 22px); letter-spacing: -0.02em;
}
.room-caption .dim { color: var(--text-faint); }

/* ============================================================
   ROLES grid
   ============================================================ */
.roles-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
@media (max-width: 900px){ .roles-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px){ .roles-grid { grid-template-columns: 1fr; } }
.role-chip {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  background: var(--surface);
  transition: all 0.3s var(--ease);
}
.role-chip:hover { border-color: var(--acc-soft); background: color-mix(in oklab, var(--acc-1) 7%, transparent); transform: translateY(-2px); }
.role-chip .ri { width: 30px; height: 30px; color: var(--acc-2); margin-bottom: 14px; }
.role-chip h4 { font-family: var(--font-display); font-size: 16px; font-weight: 600; letter-spacing: -0.01em; }
.role-chip p { margin-top: 6px; font-size: 13.5px; color: var(--text-faint); line-height: 1.45; }
.roles-foot { margin-top: 26px; font-size: 15px; color: var(--text-dim); }
.roles-foot a { color: var(--acc-2); border-bottom: 1px solid var(--acc-soft); }

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; counter-reset: step; }
@media (max-width:860px){ .steps { grid-template-columns: 1fr; } }
.step {
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 30px 28px; background: var(--surface); position: relative;
}
.step .sn {
  font-family: var(--font-display); font-weight: 700;
  font-size: 46px; letter-spacing: -0.04em;
  background: var(--acc-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  line-height: 1;
}
.step h3 { margin-top: 16px; font-size: 22px; }
.step p { margin-top: 10px; color: var(--text-dim); font-size: 16px; }

/* ============================================================
   USE CASES
   ============================================================ */
.usecases { background: var(--surface); border-block: 1px solid var(--border); }
.uc-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px 36px; margin-top: 12px; }
@media (max-width:760px){ .uc-list { grid-template-columns: 1fr; } }
.uc {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 16px 0; border-bottom: 1px solid var(--border);
  color: var(--text-dim); font-size: 16.5px; line-height: 1.5;
}
.uc .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--acc-2); margin-top: 9px; flex: none; }
.uc-closer { margin-top: 30px; font-family: var(--font-display); font-weight: 500; font-size: clamp(20px,2.6vw,30px); letter-spacing: -0.02em; }

/* ============================================================
   ETHICS
   ============================================================ */
.ethics { }
.ethics-card {
  max-width: 720px; margin: 0 auto; text-align: center;
}
.ethics-card h3 { font-size: clamp(24px, 3vw, 34px); }
.ethics-card p { margin-top: 18px; color: var(--text-dim); font-size: 17px; line-height: 1.7; }

/* ============================================================
   PRICING
   ============================================================ */
.pricing-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 18px; }
@media (max-width: 820px){ .pricing-grid { grid-template-columns: 1fr; } }
.price {
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 34px 32px; background: var(--surface); display: flex; flex-direction: column;
}
.price.pro {
  border-color: var(--acc-soft);
  background:
    radial-gradient(120% 80% at 90% 0%, color-mix(in oklab, var(--acc-1) 14%, transparent), transparent 60%),
    var(--surface);
  position: relative;
}
.price .ptag { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-faint); }
.price.pro .ptag { color: var(--acc-2); }
.price .pname { font-family: var(--font-display); font-weight: 600; font-size: 26px; margin-top: 8px; letter-spacing: -0.02em; }
.price .pamt { font-family: var(--font-display); font-weight: 700; font-size: 52px; margin-top: 16px; letter-spacing: -0.04em; line-height: 1; }
.price .pamt small { font-size: 18px; font-weight: 500; color: var(--text-faint); letter-spacing: 0; }
.price .pfeat { list-style: none; padding: 0; margin: 22px 0 28px; display: flex; flex-direction: column; gap: 11px; }
.price .pfeat li { display: flex; gap: 11px; align-items: flex-start; font-size: 15.5px; color: var(--text-dim); }
.price .pfeat li svg { width: 17px; height: 17px; flex: none; color: var(--acc-2); margin-top: 3px; }
.price .btn { margin-top: auto; justify-content: center; }

/* ============================================================
   FAQ
   ============================================================ */
.faq-list { max-width: 820px; margin: 0 auto; border-top: 1px solid var(--border); }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  padding: 24px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px;
  font-family: var(--font-display); font-weight: 500; font-size: clamp(17px, 2vw, 21px);
  letter-spacing: -0.02em; color: var(--text);
}
.faq-q .ic { width: 22px; height: 22px; flex: none; color: var(--acc-2); transition: transform 0.3s var(--ease); }
.faq-item.open .faq-q .ic { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s var(--ease); }
.faq-a-inner { padding-bottom: 24px; color: var(--text-dim); font-size: 16.5px; line-height: 1.6; max-width: 64ch; }

/* ============================================================
   CTA band + FOOTER
   ============================================================ */
.cta-band { text-align: center; }
.cta-band h2 { font-size: clamp(38px, 6vw, 76px); letter-spacing: -0.04em; }
.cta-band h2 .accent { background: var(--acc-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.cta-band p { margin: 20px auto 0; color: var(--text-dim); font-size: 19px; max-width: 44ch; }
.cta-band .hero-cta { justify-content: center; }

.footer { border-top: 1px solid var(--border); padding-block: 56px 40px; }
.footer-top { display: flex; justify-content: space-between; gap: 30px; align-items: flex-start; flex-wrap: wrap; }
.footer .tagline { color: var(--text-faint); font-size: 15px; margin-top: 14px; max-width: 30ch; }
.footer-links { display: flex; gap: 26px; font-size: 14px; color: var(--text-dim); flex-wrap: wrap; }
.footer-links a:hover { color: var(--text); }
.footer-bottom {
  margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: var(--text-faint); font-family: var(--font-mono);
}
.footer-closer { font-family: var(--font-display); font-style: normal; }

/* reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .waveform span, .ov-head .hidden-badge .pulse, .ov-a .cursor, .rc-a .cursor { animation: none !important; }
}