/* =========================================================
   Scaling Suite — AI Trust Demo
   Dark premium theme · brand blue #2563eb
   ========================================================= */
:root {
  --bg: #0a0a0f;
  --bg-2: #0e1018;
  --panel: #11131c;
  --panel-2: #171a26;
  --line: rgba(120, 140, 190, 0.16);
  --line-strong: rgba(120, 140, 190, 0.26);
  --text: #f2f4fa;
  --text-dim: #aab2c8;
  --text-faint: #737c93;
  --blue: #2563eb;
  --blue-bright: #60a5fa;
  --blue-soft: #93b4f8;
  --blue-deep: #1e40af;
  --green: #2fd183;
  --amber: #ffb454;
  --red: #f87171;
  --grad: linear-gradient(135deg, #2563eb 0%, #60a5fa 100%);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.mono { font-family: var(--mono); }
#demo, #calculator, #how, #cta, #why, #channels, #pricing, .stage { scroll-margin-top: 76px; }
em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.12; }
section { position: relative; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 600 15px/1 var(--font);
  padding: 14px 22px; border-radius: 12px;
  border: 1px solid transparent; cursor: pointer;
  text-decoration: none; color: var(--text);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--grad); color: #fff;
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.35);
}
.btn-primary:hover { box-shadow: 0 10px 40px rgba(37, 99, 235, 0.55); transform: translateY(-1px); }
.btn-primary em { color: #fff; background: none; text-decoration: underline; text-underline-offset: 3px; }
.btn-ghost { background: rgba(255, 255, 255, 0.04); border-color: var(--line-strong); color: var(--text); }
.btn-ghost:hover { background: rgba(120, 140, 190, 0.16); border-color: rgba(255, 255, 255, 0.25); }
.btn-sm { padding: 10px 16px; font-size: 14px; border-radius: 10px; }
.btn-lg { padding: 17px 28px; font-size: 16px; border-radius: 14px; }
.btn-block { width: 100%; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: rgba(7, 7, 15, 0.78);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1180px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 28px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand-logo { height: 52px; width: auto; display: block; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px; background: var(--grad);
  position: relative; flex: none;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.5);
}
.brand-mark::after {
  content: "S"; position: absolute; inset: 0;
  display: grid; place-items: center;
  font: 800 17px/1 var(--font); color: #fff;
}
.brand-name { font-weight: 500; font-size: 17px; letter-spacing: -0.01em; }
.brand-name b { font-weight: 800; }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--text-dim); text-decoration: none; font-size: 14.5px; font-weight: 500; transition: color 0.15s; }
.nav-links a:hover { color: var(--text); }

/* ---------- hero ---------- */
.hero { padding: 96px 0 84px; overflow: hidden; }
.hero-glow {
  position: absolute; top: -340px; left: 50%; transform: translateX(-50%);
  width: 1100px; height: 700px; pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.28), transparent 62%);
}
.hero-inner { position: relative; text-align: center; max-width: 880px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 13.5px; font-weight: 600; color: var(--blue-soft);
  border: 1px solid rgba(147, 180, 248, 0.3); background: rgba(37, 99, 235, 0.1);
  padding: 7px 14px; border-radius: 100px; margin-bottom: 26px;
}
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 0 rgba(47, 209, 131, 0.6); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 9px rgba(47, 209, 131, 0); } 100% { box-shadow: 0 0 0 0 rgba(47, 209, 131, 0); } }
.hero h1 { font-size: clamp(38px, 5.6vw, 62px); font-weight: 800; margin-bottom: 22px; }
.hero-sub { font-size: clamp(16px, 2vw, 19px); color: var(--text-dim); max-width: 680px; margin: 0 auto 36px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.trust-strip { display: flex; gap: 28px; justify-content: center; flex-wrap: wrap; list-style: none; }
.trust-strip li { color: var(--text-faint); font-size: 14px; font-weight: 500; display: flex; align-items: center; gap: 8px; }
.trust-strip li::before { content: "✓"; color: var(--green); font-weight: 700; }

/* ---------- hero video ---------- */
.hero-video { max-width: 760px; margin: 44px auto 0; }
.hero-video video {
  width: 100%; aspect-ratio: 16 / 9; border-radius: 20px; display: block;
  border: 1px solid var(--line-strong); background: var(--panel);
  box-shadow: 0 24px 80px rgba(37, 99, 235, 0.25);
}
.hero-video-caption { margin-top: 12px; font-size: 13px; color: var(--text-faint); font-weight: 600; }

/* ---------- audiograms ---------- */
.listen-section { padding: 80px 0 10px; }
.audiogram-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.gram-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: border-color 0.15s, transform 0.15s;
}
.gram-card:hover { border-color: rgba(96, 165, 250, 0.4); transform: translateY(-2px); }
.gram-img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; }
.gram-body { padding: 18px; display: flex; flex-direction: column; gap: 10px; }
.gram-ind { font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue-soft); }
.gram-title { font-size: 16px; font-weight: 700; }
.gram-row { display: flex; align-items: center; gap: 12px; margin-top: 4px; }
.gram-play {
  flex: none; width: 42px; height: 42px; border-radius: 50%;
  background: var(--grad); color: #fff; border: none; cursor: pointer;
  font-size: 15px; display: grid; place-items: center;
  box-shadow: 0 4px 18px rgba(37, 99, 235, 0.45);
  transition: transform 0.15s;
}
.gram-play:hover { transform: scale(1.07); }
.gram-play:disabled { opacity: 0.4; cursor: default; }
.gram-bar { flex: 1; height: 6px; border-radius: 3px; background: rgba(255, 255, 255, 0.1); cursor: pointer; overflow: hidden; }
.gram-bar-fill { height: 100%; width: 0%; background: var(--grad); border-radius: 3px; transition: width 0.2s linear; }
.gram-time { font-size: 12px; color: var(--text-faint); flex: none; min-width: 44px; text-align: right; }

/* ---------- audio start overlay ---------- */
.audio-start-btn {
  align-self: center; margin: auto;
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--grad); color: #fff; border: none; cursor: pointer;
  font: 700 16px var(--font); padding: 16px 28px; border-radius: 100px;
  box-shadow: 0 10px 40px rgba(37, 99, 235, 0.5);
  animation: pulse 2s infinite;
  transition: transform 0.15s;
}
.audio-start-btn:hover { transform: scale(1.04); }
.audio-start-btn .asb-icon { font-size: 13px; }
.audio-start-btn .asb-dur { font-weight: 400; font-size: 13px; opacity: 0.85; }

/* ---------- section heads ---------- */
.section-head { text-align: center; max-width: 720px; margin: 0 auto 44px; }
.kicker { font-size: 13px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--blue-soft); margin-bottom: 12px; }
.section-head h2, .calc-copy h2, .cta-copy h2 { font-size: clamp(28px, 3.6vw, 40px); font-weight: 800; }
.section-sub { color: var(--text-dim); font-size: 16.5px; margin-top: 14px; }

/* ---------- pickers ---------- */
.demo-section { padding: 40px 0 90px; }
.picker { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; max-width: 980px; margin: 0 auto; }
.pick-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 18px; text-align: center; cursor: pointer; color: var(--text);
  font: 600 15px/1.3 var(--font);
  transition: border-color 0.15s, transform 0.15s, background 0.15s, box-shadow 0.15s;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.pick-card:hover { border-color: rgba(96, 165, 250, 0.5); transform: translateY(-3px); background: var(--panel-2); }
.pick-card.selected { border-color: var(--blue-bright); background: rgba(37, 99, 235, 0.12); box-shadow: 0 0 0 1px var(--blue-bright), 0 12px 36px rgba(37, 99, 235, 0.25); }
.pick-icon { width: 46px; height: 46px; border-radius: 13px; background: rgba(37, 99, 235, 0.16); display: grid; place-items: center; color: var(--blue-bright); }
.pick-icon svg { width: 26px; height: 26px; }
.scenario-picker { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); margin-top: 26px; }
.scen-card { text-align: left; align-items: flex-start; gap: 8px; padding: 20px; }
.scen-card .scen-label { font-size: 16px; font-weight: 700; }
.scen-card .scen-tag { font-size: 13.5px; font-weight: 400; color: var(--text-dim); line-height: 1.45; }
.scen-card .scen-go { margin-top: 6px; font-size: 13px; font-weight: 700; color: var(--blue-bright); }

/* ---------- stage ---------- */
.stage { margin-top: 38px; }
.stage-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: 22px; align-items: stretch; }

/* phone */
.phone {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line-strong); border-radius: 22px;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column; overflow: hidden;
  min-height: 560px;
}
.phone-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 20px 14px; border-bottom: 1px solid var(--line); }
.phone-call-info { display: flex; align-items: center; gap: 12px; min-width: 0; }
.caller-avatar {
  width: 44px; height: 44px; border-radius: 50%; flex: none;
  background: linear-gradient(135deg, #2a3550, #1a2238);
  border: 1px solid var(--line-strong);
  display: grid; place-items: center; font: 700 15px/1 var(--font); color: var(--blue-soft);
}
.caller-avatar.talking { box-shadow: 0 0 0 3px rgba(147, 180, 248, 0.35); }
.caller-name { font-weight: 700; font-size: 15.5px; }
.caller-meta { font-size: 12.5px; color: var(--text-faint); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.call-status { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-dim); flex: none; }
.call-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--green); animation: pulse 1.6s infinite; }
.call-dot.ended { background: var(--red); animation: none; }
.mini-score {
  display: none; font-size: 11.5px; font-weight: 700; letter-spacing: 0.04em;
  color: var(--blue-soft); background: rgba(37, 99, 235, 0.14);
  border: 1px solid rgba(147, 180, 248, 0.35); border-radius: 100px; padding: 4px 10px;
}
.mini-score b { font-weight: 600; font-size: 12.5px; }
.situation-strip {
  padding: 8px 20px; font-size: 12.5px; font-weight: 600; color: var(--amber);
  background: rgba(255, 180, 84, 0.07); border-bottom: 1px solid var(--line);
}
.transcript { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 14px; scroll-behavior: smooth; }
.bubble {
  max-width: 82%; padding: 11px 15px; border-radius: 16px;
  font-size: 14.5px; line-height: 1.5;
  animation: bubbleIn 0.3s ease both;
  position: relative;
}
@keyframes bubbleIn { from { opacity: 0; transform: translateY(10px) scale(0.97); } }
.bubble.ai { align-self: flex-start; background: rgba(37, 99, 235, 0.16); border: 1px solid rgba(96, 165, 250, 0.22); border-bottom-left-radius: 5px; }
.bubble.caller { align-self: flex-end; background: rgba(255, 255, 255, 0.06); border: 1px solid var(--line); border-bottom-right-radius: 5px; }
.bubble .who { display: block; font-size: 10.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 4px; }
.bubble.ai .who { color: var(--blue-bright); }
.bubble.caller .who { color: var(--text-faint); }
.bubble .cursor { display: inline-block; width: 7px; height: 14px; background: var(--blue-bright); margin-left: 2px; vertical-align: -2px; animation: blink 0.8s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.typing-dots { display: inline-flex; gap: 4px; padding: 4px 0; }
.typing-dots i { width: 6px; height: 6px; border-radius: 50%; background: var(--text-faint); animation: bounce 1.2s infinite; }
.typing-dots i:nth-child(2) { animation-delay: 0.15s; }
.typing-dots i:nth-child(3) { animation-delay: 0.3s; }
@keyframes bounce { 30% { transform: translateY(-4px); opacity: 1; } }
.call-ended-note { align-self: center; font-size: 12.5px; color: var(--text-faint); padding: 6px 14px; border: 1px dashed var(--line-strong); border-radius: 100px; animation: bubbleIn 0.3s ease both; }

.phone-bottom { border-top: 1px solid var(--line); padding: 12px 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.speaking-indicator { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-dim); min-width: 0; }
.speaking-indicator.idle { opacity: 0.35; }
.wave { display: inline-flex; align-items: center; gap: 3px; height: 18px; }
.wave i { width: 3px; border-radius: 2px; background: var(--blue-bright); height: 6px; }
.speaking-indicator.active .wave i { animation: waveAnim 0.9s ease-in-out infinite; }
.wave i:nth-child(1) { animation-delay: 0s; } .wave i:nth-child(2) { animation-delay: 0.15s; }
.wave i:nth-child(3) { animation-delay: 0.3s; } .wave i:nth-child(4) { animation-delay: 0.45s; }
.wave i:nth-child(5) { animation-delay: 0.6s; }
@keyframes waveAnim { 50% { height: 16px; } }
.player-controls { display: flex; gap: 8px; flex: none; }
.ctrl {
  background: rgba(255, 255, 255, 0.05); border: 1px solid var(--line-strong);
  color: var(--text); border-radius: 9px; min-width: 36px; height: 34px;
  font-size: 15px; cursor: pointer; transition: background 0.15s;
  display: inline-flex; align-items: center; justify-content: center;
}
.ctrl:hover { background: rgba(255, 255, 255, 0.1); }
.ctrl-text { font-size: 12.5px; font-weight: 700; padding: 0 11px; font-family: var(--font); }

/* brain panel */
.brain {
  background: var(--panel); border: 1px solid var(--line-strong); border-radius: 22px;
  padding: 20px; display: flex; flex-direction: column; gap: 16px;
  box-shadow: var(--shadow); min-height: 560px;
}
.brain-head { display: flex; align-items: center; justify-content: space-between; }
.brain-head h3 { font-size: 16px; font-weight: 700; }
.brain-badge {
  font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--green); background: rgba(47, 209, 131, 0.1); border: 1px solid rgba(47, 209, 131, 0.3);
  padding: 4px 10px; border-radius: 100px;
}
.score-row { display: flex; gap: 18px; align-items: center; }
.gauge-wrap { position: relative; width: 110px; height: 110px; flex: none; }
.gauge { width: 110px; height: 110px; transform: rotate(-90deg); }
.gauge-track, .gauge-fill { fill: none; stroke-width: 9; stroke-linecap: round; }
.gauge-track { stroke: rgba(255, 255, 255, 0.07); }
.gauge-fill { stroke: url(#gaugeGrad), var(--blue-bright); stroke: var(--blue-bright); stroke-dasharray: 326.7; stroke-dashoffset: 326.7; transition: stroke-dashoffset 0.9s cubic-bezier(0.22, 1, 0.36, 1), stroke 0.4s; }
.gauge-fill.hot { stroke: var(--green); }
.gauge-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0; }
.gauge-num { font-size: 27px; font-weight: 600; }
.gauge-label { font-size: 10px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-faint); }
.captured { flex: 1; min-width: 0; }
.captured h4, .feed-title { font-size: 11.5px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 8px; }
.captured-list { list-style: none; display: flex; flex-direction: column; gap: 5px; max-height: 110px; overflow-y: auto; }
.captured-list li {
  font-size: 12.5px; display: flex; gap: 8px; align-items: baseline;
  animation: feedIn 0.35s ease both;
}
.captured-list .cf { color: var(--text-faint); font-weight: 600; flex: none; min-width: 64px; }
.captured-list .cv { color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tags-row { display: flex; flex-wrap: wrap; gap: 8px; min-height: 28px; }
.tag-chip {
  font-size: 11.5px; font-weight: 700; padding: 5px 11px; border-radius: 100px;
  background: rgba(255, 180, 84, 0.1); color: var(--amber); border: 1px solid rgba(255, 180, 84, 0.3);
  animation: feedIn 0.35s ease both;
}
.tag-chip.booked { background: rgba(47, 209, 131, 0.1); color: var(--green); border-color: rgba(47, 209, 131, 0.35); }
.feed { list-style: none; display: flex; flex-direction: column; gap: 9px; overflow-y: auto; flex: 1; padding-right: 4px; }
.feed-item {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 13px; color: var(--text-dim);
  background: rgba(255, 255, 255, 0.025); border: 1px solid var(--line);
  border-radius: 11px; padding: 9px 12px;
  animation: feedIn 0.4s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes feedIn { from { opacity: 0; transform: translateX(14px); } }
.feed-item .fi-icon { flex: none; width: 24px; height: 24px; border-radius: 7px; display: grid; place-items: center; font-size: 12px; }
.feed-item.fi-status .fi-icon { background: rgba(96, 165, 250, 0.15); }
.feed-item.fi-intent .fi-icon { background: rgba(168, 130, 255, 0.15); }
.feed-item.fi-capture .fi-icon { background: rgba(255, 255, 255, 0.07); }
.feed-item.fi-booking .fi-icon { background: rgba(47, 209, 131, 0.15); }
.feed-item.fi-action .fi-icon { background: rgba(255, 180, 84, 0.13); }
.feed-item b { color: var(--text); font-weight: 600; }
.feed-item .fi-conf { font-family: var(--mono); font-size: 11px; color: var(--blue-soft); margin-left: 4px; }
.feed-item.fi-booking { border-color: rgba(47, 209, 131, 0.35); background: rgba(47, 209, 131, 0.06); }

/* ---------- result ---------- */
.result { margin-top: 26px; background: var(--panel); border: 1px solid rgba(47, 209, 131, 0.3); border-radius: 22px; padding: 26px; box-shadow: 0 0 60px rgba(47, 209, 131, 0.07), var(--shadow); animation: resultIn 0.55s cubic-bezier(0.22, 1, 0.36, 1) both; }
@keyframes resultIn { from { opacity: 0; transform: translateY(26px); } }
.result-head { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 22px; }
.result-check {
  flex: none; width: 44px; height: 44px; border-radius: 50%;
  background: rgba(47, 209, 131, 0.12); border: 1px solid rgba(47, 209, 131, 0.45);
  color: var(--green); display: grid; place-items: center; font-size: 20px; font-weight: 800;
}
.result-head h3 { font-size: 21px; font-weight: 800; margin-bottom: 4px; }
.result-head p { color: var(--text-dim); font-size: 14.5px; }
.result-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 20px; }
.crm-card { background: var(--bg-2); border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 20px; }
.crm-card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.crm-logo { font: 800 11px/1 var(--font); letter-spacing: 0.14em; color: var(--text-faint); border: 1px solid var(--line-strong); padding: 5px 9px; border-radius: 7px; }
.crm-stamp { font-size: 12px; color: var(--green); font-weight: 600; }
.crm-name { font-size: 19px; font-weight: 800; margin-bottom: 10px; }
.pipeline { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.pip { font-size: 11.5px; font-weight: 700; padding: 5px 11px; border-radius: 100px; background: rgba(255, 255, 255, 0.05); border: 1px solid var(--line-strong); color: var(--text-dim); }
.pip.done { color: var(--blue-soft); border-color: rgba(147, 180, 248, 0.4); background: rgba(37, 99, 235, 0.1); }
.pip.booked { color: var(--green); border-color: rgba(47, 209, 131, 0.45); background: rgba(47, 209, 131, 0.1); }
.pip-arrow { color: var(--text-faint); font-size: 12px; }
.crm-fields { display: grid; grid-template-columns: auto 1fr; gap: 7px 16px; margin-bottom: 16px; }
.crm-fields dt { font-size: 12.5px; color: var(--text-faint); font-weight: 600; }
.crm-fields dd { font-size: 13px; color: var(--text); }
.crm-summary { border-top: 1px solid var(--line); padding-top: 14px; }
.crm-summary h5 { font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 7px; }
.crm-summary p { font-size: 13.5px; color: var(--text-dim); line-height: 1.6; }
.result-side { display: flex; flex-direction: column; gap: 12px; }
.stat-card { background: var(--bg-2); border: 1px solid var(--line-strong); border-radius: var(--radius-sm); padding: 14px 18px; display: flex; flex-direction: column; gap: 2px; }
.stat-num { font-size: 21px; font-weight: 700; }
.stat-num.accent { color: var(--green); }
.stat-label { font-size: 12px; color: var(--text-faint); font-weight: 600; }
.result-ctas { display: flex; flex-direction: column; gap: 10px; margin-top: auto; }

/* ---------- stats ---------- */
.stats-section { padding: 90px 0 30px; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stat-tile {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; display: flex; flex-direction: column; gap: 8px;
  transition: border-color 0.15s, transform 0.15s;
}
.stat-tile:hover { border-color: rgba(96, 165, 250, 0.4); transform: translateY(-2px); }
.stat-big { font-size: 38px; font-weight: 600; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1; }
.stat-tile p { color: var(--text-dim); font-size: 14px; }

/* ---------- channels ---------- */
.channels-section { padding: 90px 0 30px; }
.channels-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.channel-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 20px; }
.channel-icon { font-size: 26px; display: inline-block; margin-bottom: 12px; }
.channel-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.channel-card p { font-size: 13.5px; color: var(--text-dim); }

/* ---------- pricing anchor ---------- */
.price-section { padding: 80px 0 20px; }
.price-inner {
  text-align: center; max-width: 760px;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.1), rgba(37, 99, 235, 0.03));
  border: 1px solid rgba(96, 165, 250, 0.25); border-radius: 26px;
  padding: 52px 36px;
}
.price-inner h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; }
.price-val { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.price-inner .section-sub { margin: 14px auto 26px; max-width: 480px; }
.calc-fine { font-size: 12.5px; color: var(--text-faint); text-align: center; margin-bottom: 16px; }

/* ---------- calculator ---------- */
.calc-section { padding: 90px 0; background: linear-gradient(180deg, transparent, rgba(37, 99, 235, 0.05) 50%, transparent); }
.calc-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: center; }
.calc-copy .section-sub { margin-top: 16px; }
.calc-card { background: var(--panel); border: 1px solid var(--line-strong); border-radius: 22px; padding: 28px; box-shadow: var(--shadow); }
.calc-field { margin-bottom: 22px; }
.calc-field label { display: flex; justify-content: space-between; align-items: baseline; font-size: 14px; font-weight: 600; color: var(--text-dim); margin-bottom: 10px; }
.calc-field output { font-size: 17px; color: var(--text); font-weight: 600; }
input[type="range"] { width: 100%; appearance: none; -webkit-appearance: none; height: 6px; border-radius: 3px; background: rgba(255, 255, 255, 0.1); outline: none; cursor: pointer; }
input[type="range"]::-webkit-slider-thumb {
  appearance: none; -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%;
  background: var(--grad); border: 2.5px solid #fff; box-shadow: 0 2px 12px rgba(37, 99, 235, 0.6); cursor: grab;
}
input[type="range"]::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%; background: var(--blue); border: 2.5px solid #fff; cursor: grab; }
.calc-results { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 26px 0 20px; }
.calc-result { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 16px; display: flex; flex-direction: column; }
.calc-result span:last-child { font-size: 12px; color: var(--text-faint); font-weight: 600; }
.calc-num { font-size: 22px; font-weight: 600; }
.calc-num.accent { color: var(--red); }
.calc-result-big { grid-column: 1 / -1; border-color: rgba(248, 113, 113, 0.3); background: rgba(248, 113, 113, 0.05); }
.calc-result-big .calc-num { font-size: 32px; }

/* ---------- how ---------- */
.how-section { padding: 90px 0; }
.how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.how-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.how-num {
  display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 11px;
  background: var(--grad); color: #fff; font-weight: 800; font-size: 16px; margin-bottom: 16px;
}
.how-card h3 { font-size: 17.5px; font-weight: 700; margin-bottom: 10px; }
.how-card p { font-size: 14px; color: var(--text-dim); }

/* ---------- CTA / form ---------- */
.cta-section { padding: 90px 0 110px; }
.cta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.cta-points { list-style: none; margin-top: 24px; display: flex; flex-direction: column; gap: 12px; }
.cta-points li { display: flex; gap: 10px; color: var(--text-dim); font-size: 15px; }
.cta-points li::before { content: "✓"; color: var(--green); font-weight: 800; }
.lead-form {
  background: var(--panel); border: 1px solid var(--line-strong); border-radius: 22px;
  padding: 28px; box-shadow: var(--shadow);
  position: relative;
}
.lead-form h3 { font-size: 20px; font-weight: 800; margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-field { margin-bottom: 14px; }
.form-field label { display: block; font-size: 13px; font-weight: 600; color: var(--text-dim); margin-bottom: 7px; }
.form-field .opt { font-weight: 400; color: var(--text-faint); }
.form-field input, .form-field select {
  width: 100%; background: var(--bg-2); border: 1px solid var(--line-strong);
  border-radius: 11px; padding: 13px 14px; color: var(--text);
  font: 400 14.5px var(--font); outline: none; transition: border-color 0.15s, box-shadow 0.15s;
}
.form-field input:focus, .form-field select:focus { border-color: var(--blue-bright); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25); }
.form-field input.invalid { border-color: var(--red); }
.form-field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239aa0b8' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; }
.form-note { font-size: 12.5px; color: var(--text-faint); text-align: center; margin-top: 12px; }
.form-status { margin-top: 12px; font-size: 14px; font-weight: 600; text-align: center; min-height: 20px; }
.form-status.ok { color: var(--green); }
.form-status.err { color: var(--red); }
.lead-form.sent .form-row, .lead-form.sent .form-field, .lead-form.sent #lf-submit, .lead-form.sent .form-note { display: none; }
.form-success { text-align: center; padding: 30px 10px; }
.form-success .result-check { margin: 0 auto 16px; }
.form-success h4 { font-size: 19px; margin-bottom: 8px; }
.form-success p { color: var(--text-dim); font-size: 14.5px; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 44px 0; }
.footer-inner { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.footer p { color: var(--text-dim); font-size: 14px; }
.footer-fine { color: var(--text-faint); font-size: 12.5px; }

/* ---------- scrollbars ---------- */
.transcript::-webkit-scrollbar, .feed::-webkit-scrollbar, .captured-list::-webkit-scrollbar { width: 6px; }
.transcript::-webkit-scrollbar-thumb, .feed::-webkit-scrollbar-thumb, .captured-list::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.12); border-radius: 3px; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .stage-grid, .result-grid, .calc-grid, .cta-grid { grid-template-columns: 1fr; }
  .how-grid { grid-template-columns: 1fr; }
  .stats-grid, .channels-grid { grid-template-columns: 1fr 1fr; }
  .audiogram-grid { grid-template-columns: 1fr; }
  .brain { min-height: 0; }
  .phone { min-height: 480px; }
  .transcript { max-height: 330px; }
  .feed { max-height: 240px; }
  .nav-links { display: none; }
  .mini-score { display: inline-flex; align-items: baseline; gap: 4px; }
  .hero { padding: 64px 0 56px; }
  .calc-grid, .cta-grid { gap: 32px; }
}
@media (max-width: 540px) {
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .stats-grid, .channels-grid { grid-template-columns: 1fr; }
  .phone-bottom { flex-direction: column; align-items: stretch; }
  .player-controls { justify-content: center; }
  .speaking-indicator { justify-content: center; }
  .bubble { max-width: 92%; }
  .hero-actions .btn { width: 100%; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}