/* ==========================================================================
   FO3-X · ui-v3 · css/main.css
   Layered runtime stylesheet:
   L1 FOUNDATION (tokens/reset/typography/base)
   L2 PRIMITIVES (shared kit components)
   L3 DOMAIN SURFACES: PUBLIC · DEMO · AUTH
   L4 RUNTIME SYSTEM (lab, host frames, overlays, toasts)
   ========================================================================== */

/* ------------------------------------------------------------------ *
 * L1 · FOUNDATION — design tokens
 * ------------------------------------------------------------------ */
:root {
  --fo3-font: "Inter", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --fo3-mono: "SF Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;

  /* palette — calm ink + confident teal + warm amber */
  --ink-900: #0B1220;
  --ink-800: #101828;
  --ink-700: #1D2939;
  --ink-600: #344054;
  --ink-500: #475467;
  --ink-400: #667085;
  --ink-300: #98A2B3;
  --ink-200: #D0D5DD;
  --ink-100: #E4E7EC;
  --ink-50: #F2F4F7;
  --panel: #FFFFFF;
  --paper: #F7F8FA;
  --paper-deep: #EEF1F5;

  --fo3-700: #0E5A63;
  --fo3-600: #0E7C86;
  --fo3-500: #12939E;
  --fo3-400: #35B3BC;
  --fo3-300: #9CD6DA;
  --fo3-200: #CDEDEF;
  --fo3-100: #EBF7F8;
  --fo3-ink: #083A41;

  --amber-600: #B54708;
  --amber-500: #DC6803;
  --amber-400: #FDB022;
  --amber-100: #FEF0C7;
  --green-600: #067647;
  --green-500: #12B76A;
  --green-100: #D1FADF;
  --red-600: #B42318;
  --red-500: #D92D20;
  --red-100: #FEE4E2;
  --info-100: #EFF6FF;

  --accent: var(--fo3-600);
  --accent-strong: var(--fo3-700);
  --accent-ink: #FFFFFF;

  --radius-s: 8px;
  --radius-m: 12px;
  --radius-l: 16px;
  --radius-xl: 22px;
  --radius-full: 999px;

  --sh-1: 0 1px 2px rgba(16, 24, 40, .05);
  --sh-2: 0 4px 16px -4px rgba(16, 24, 40, .08), 0 2px 4px -2px rgba(16, 24, 40, .04);
  --sh-3: 0 16px 40px -12px rgba(16, 24, 40, .16), 0 4px 12px -4px rgba(16, 24, 40, .06);
  --sh-4: 0 28px 64px -16px rgba(8, 58, 65, .24);
  --ring: 0 0 0 3px rgba(18, 147, 158, .32);

  --fs-hero: clamp(34px, 4.6vw, 56px);
  --fs-h2: clamp(26px, 3vw, 36px);
  --fs-h3: 19px;
  --fs-body: 15.5px;
  --fs-sm: 13.5px;
  --fs-xs: 12px;

  --ease: cubic-bezier(.2, .7, .3, 1);
  --dur: .22s;
}

/* ------------------------------------------------------------------ *
 * L1 · reset + base
 * ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--fo3-font);
  font-size: var(--fs-body);
  line-height: 1.55;
  color: var(--ink-700);
  background: var(--paper-deep);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, p, ul, ol, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--fo3-500); outline-offset: 2px; border-radius: 6px; }
::selection { background: var(--fo3-200); color: var(--fo3-ink); }

.i { width: 20px; height: 20px; flex: none; }
.i.ic-check { width: 16px; height: 16px; color: var(--green-600); }

/* ------------------------------------------------------------------ *
 * L1 · typography
 * ------------------------------------------------------------------ */
.page-title {
  font-size: var(--fs-h2);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.12;
  color: var(--ink-900);
}
.page-sub { margin-top: 12px; font-size: 17px; color: var(--ink-500); max-width: 640px; line-height: 1.5; }
.eyebrow {
  font-size: 12.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--fo3-600); margin-bottom: 12px;
}
.sec-head { margin-bottom: 28px; }
.sec-head--center { text-align: center; margin-inline: auto; max-width: 680px; }
.sec-title { font-size: var(--fs-h2); font-weight: 800; letter-spacing: -0.025em; line-height: 1.15; color: var(--ink-900); }
.sec-sub { margin-top: 12px; font-size: 16.5px; color: var(--ink-500); }
.page-head { margin-bottom: 36px; }
.page-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.page { padding: 56px 40px 80px; max-width: 1240px; margin: 0 auto; }

/* ------------------------------------------------------------------ *
 * L2 · logo + brand
 * ------------------------------------------------------------------ */
.logo { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; color: var(--ink-900); }
.logo:hover { text-decoration: none; }
.logo-mark {
  width: var(--logo-size, 32px); height: var(--logo-size, 32px);
  display: grid; place-items: center; flex: none;
  color: #fff; background: linear-gradient(135deg, var(--fo3-500), var(--fo3-700));
  border-radius: calc(var(--logo-size, 32px) * .3);
  box-shadow: var(--sh-1), inset 0 1px 0 rgba(255,255,255,.25);
}
.logo-mark .i { width: 62%; height: 62%; }
.logo-word { font-weight: 800; font-size: calc(var(--logo-size, 32px) * .58); letter-spacing: -0.02em; }

/* ------------------------------------------------------------------ *
 * L2 · buttons
 * ------------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: var(--radius-m); border: 1px solid transparent;
  font-weight: 650; font-size: 15px; line-height: 1.2; cursor: pointer;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur), border-color var(--dur), color var(--dur);
  text-decoration: none; white-space: nowrap; user-select: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--sm { padding: 8px 13px; font-size: 13.5px; border-radius: var(--radius-s); }
.btn--block { width: 100%; }
.btn .i { width: 17px; height: 17px; }
.btn--primary { background: var(--accent); color: var(--accent-ink); box-shadow: var(--sh-1), inset 0 1px 0 rgba(255,255,255,.18); }
.btn--primary:hover { background: var(--accent-strong); box-shadow: var(--sh-2); }
.btn--secondary { background: var(--panel); color: var(--ink-800); border-color: var(--ink-200); box-shadow: var(--sh-1); }
.btn--secondary:hover { border-color: var(--ink-300); box-shadow: var(--sh-2); }
.btn--ghost { background: transparent; color: var(--ink-700); }
.btn--ghost:hover { background: rgba(16,24,40,.05); }
.btn--white { background: #fff; color: var(--fo3-ink); box-shadow: var(--sh-2); }
.btn--white:hover { box-shadow: var(--sh-3); }
.btn--accent { background: var(--amber-500); color: #fff; }
.btn--accent:hover { background: var(--amber-600); }
.btn--danger { background: var(--red-500); color: #fff; }
.btn--danger:hover { background: var(--red-600); }
.btn--quietly { background: var(--fo3-100); color: var(--fo3-ink); }
.btn--quietly:hover { background: var(--fo3-200); }
.btn--link { background: none; border: none; padding: 4px 2px; color: var(--accent); font-weight: 600; box-shadow: none; }
.btn--link:hover { text-decoration: underline; transform: none; background: none; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }
.btn[data-loading] .spinner {
  width: 15px; height: 15px; border-radius: 50%; flex: none;
  border: 2px solid rgba(255,255,255,.4); border-top-color: #fff;
  animation: spin .7s linear infinite;
}
.btn--secondary[data-loading] .spinner { border-color: var(--ink-200); border-top-color: var(--ink-600); }
@keyframes spin { to { transform: rotate(360deg); } }

.icon-btn {
  display: inline-grid; place-items: center; width: 36px; height: 36px; flex: none;
  border-radius: var(--radius-s); border: 1px solid var(--ink-200); background: var(--panel);
  color: var(--ink-600); cursor: pointer; transition: all var(--dur);
}
.icon-btn:hover { color: var(--ink-900); border-color: var(--ink-300); background: var(--paper); }

/* ------------------------------------------------------------------ *
 * L2 · inputs
 * ------------------------------------------------------------------ */
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field--full { grid-column: 1 / -1; }
.ctrl { position: relative; display: flex; }
.ctrl-label { font-size: 13.5px; font-weight: 650; color: var(--ink-700); }
.ctrl-hint { font-size: var(--fs-xs); color: var(--ink-400); }
.ctrl-err { display: flex; align-items: center; gap: 6px; font-size: var(--fs-xs); font-weight: 600; color: var(--red-600); }
.ctrl-err .i { width: 14px; height: 14px; }
.input {
  width: 100%; padding: 10px 12px; font: inherit; font-size: 15px; color: var(--ink-800);
  background: var(--panel); border: 1px solid var(--ink-200); border-radius: var(--radius-m);
  transition: border-color var(--dur), box-shadow var(--dur);
}
.input::placeholder { color: var(--ink-300); }
.input:focus { outline: none; border-color: var(--fo3-500); box-shadow: var(--ring); }
.input.is-invalid { border-color: var(--red-500); }
.input.is-invalid:focus { box-shadow: 0 0 0 3px rgba(217,45,32,.18); }
.input.is-valid { border-color: var(--green-500); }
textarea.input { resize: vertical; min-height: 84px; }
select.input { appearance: none; background-image: none; cursor: pointer; }
.ctrl:has(select)::after {
  content: ""; position: absolute; right: 12px; top: 50%; width: 9px; height: 9px;
  border-right: 1.8px solid var(--ink-400); border-bottom: 1.8px solid var(--ink-400);
  transform: translateY(-70%) rotate(45deg); pointer-events: none;
}

/* ------------------------------------------------------------------ *
 * L2 · badges / chips / status
 * ------------------------------------------------------------------ */
.badge {
  display: inline-flex; align-items: center; gap: 7px; padding: 3px 11px 3px 8px;
  border-radius: var(--radius-full); background: var(--ink-100); color: var(--ink-600);
  font-size: 12.5px; font-weight: 650; width: max-content;
}
.badge-dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.badge--success { background: var(--green-100); color: var(--green-600); }
.badge--warning { background: var(--amber-100); color: var(--amber-600); }
.badge--danger { background: var(--red-100); color: var(--red-600); }
.badge--info { background: var(--fo3-100); color: var(--fo3-ink); }
.badge--brand { background: var(--ink-900); color: #fff; }

.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 11px;
  background: var(--panel); border: 1px solid var(--ink-200); border-radius: var(--radius-full);
  font-size: 12.5px; font-weight: 600; color: var(--ink-600); width: max-content;
}
.chip .i { width: 14px; height: 14px; color: var(--fo3-600); }
.chip--success { background: var(--green-100); border-color: transparent; color: var(--green-600); }
.chip--warning { background: var(--amber-100); border-color: transparent; color: var(--amber-600); }
.chip--danger { background: var(--red-100); border-color: transparent; color: var(--red-600); }
.chip--brand { background: var(--fo3-100); border-color: transparent; color: var(--fo3-ink); }
.chip--solid { background: var(--ink-900); border-color: transparent; color: #fff; }
.chip--solid .i { color: var(--fo3-400); }

.status-dot { display: inline-flex; align-items: center; gap: 8px; font-size: var(--fs-sm); font-weight: 650; color: var(--ink-600); }
.status-dot-pulse { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--ink-300); flex: none; }
.status-dot--live .status-dot-pulse { background: var(--green-500); }
.status-dot--live .status-dot-pulse::after {
  content: ""; position: absolute; inset: -4px; border-radius: 50%;
  border: 2px solid var(--green-500); animation: pulse 1.6s var(--ease) infinite;
}
.status-dot--live { color: var(--green-600); }
.status-dot--idle .status-dot-pulse { background: var(--ink-300); }
.status-dot--warning .status-dot-pulse { background: var(--amber-500); }
.status-dot--warning { color: var(--amber-600); }
.status-dot--success .status-dot-pulse { background: var(--green-500); }
.status-dot--success { color: var(--green-600); }
.status-dot--neutral .status-dot-pulse { background: var(--ink-300); }
@keyframes pulse { 0% { transform: scale(.6); opacity: 1; } 100% { transform: scale(1.5); opacity: 0; } }

/* ------------------------------------------------------------------ *
 * L2 · steps / kv / meter
 * ------------------------------------------------------------------ */
.steps { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.steps-item { display: flex; align-items: center; gap: 8px; color: var(--ink-400); }
.steps-dot {
  width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center;
  background: var(--ink-100); color: var(--ink-400); font-size: 12px; font-weight: 700;
  border: 1px solid var(--ink-200);
}
.steps-dot .i { width: 13px; height: 13px; }
.steps-label { font-size: 13px; font-weight: 650; }
.steps-item + .steps-item::before { content: ""; width: 22px; height: 1.5px; background: var(--ink-200); }
.steps-item.is-active { color: var(--fo3-ink); }
.steps-item.is-active .steps-dot { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: var(--ring); }
.steps-item.is-done { color: var(--ink-600); }
.steps-item.is-done .steps-dot { background: var(--green-100); border-color: transparent; color: var(--green-600); }
.steps-item.is-done + .steps-item::before { background: var(--green-500); }

.kv { display: grid; gap: 2px; }
.kv-row { display: flex; justify-content: space-between; gap: 16px; padding: 8px 0; border-bottom: 1px solid var(--ink-100); font-size: var(--fs-sm); }
.kv-row:last-child { border-bottom: 0; }
.kv-row dt { color: var(--ink-400); font-weight: 600; }
.kv-row dd { color: var(--ink-800); font-weight: 650; text-align: right; }

.meter { display: grid; gap: 6px; }
.meter-head { display: flex; justify-content: space-between; align-items: baseline; }
.meter-label { font-size: 12.5px; font-weight: 650; color: var(--ink-500); }
.meter-val { font-size: 13px; font-weight: 800; color: var(--ink-800); }
.meter-track { height: 7px; border-radius: 4px; background: var(--ink-100); overflow: hidden; }
.meter-fill { height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--fo3-500), var(--fo3-400)); width: var(--w, 72%); }

/* ------------------------------------------------------------------ *
 * L2 · cards / grids / sections / footer
 * ------------------------------------------------------------------ */
.card {
  background: var(--panel); border: 1px solid var(--ink-100); border-radius: var(--radius-l);
  padding: 26px; box-shadow: var(--sh-1);
}
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(var(--grid-min, 260px), 1fr)); }
.cta-band {
  background: linear-gradient(120deg, var(--ink-900) 0%, #0C2E33 60%, var(--fo3-ink) 100%);
  border-radius: var(--radius-xl); padding: 48px 44px; color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
  box-shadow: var(--sh-4); position: relative; overflow: hidden;
}
.cta-band::after {
  content: ""; position: absolute; right: -80px; top: -80px; width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(53,179,188,.35), transparent 65%);
}
.cta-band h2 { font-size: clamp(22px, 2.6vw, 30px); font-weight: 800; letter-spacing: -0.02em; }
.cta-band p { margin-top: 8px; color: var(--fo3-200); max-width: 460px; }
.cta-band-actions { display: flex; gap: 12px; flex-wrap: wrap; position: relative; z-index: 1; }

.foot { border-top: 1px solid var(--ink-100); background: var(--panel); margin-top: 72px; }
.foot-main {
  max-width: 1240px; margin: 0 auto; padding: 48px 40px 36px;
  display: grid; grid-template-columns: 1.4fr 2fr; gap: 48px;
}
.foot-tag { margin: 14px 0; color: var(--ink-500); font-size: var(--fs-sm); max-width: 300px; }
.foot-nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.foot-col { display: grid; gap: 10px; align-content: start; }
.foot-col h3 { font-size: 12.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-400); margin-bottom: 4px; }
.foot-col .btn--link { justify-self: start; padding: 0; color: var(--ink-600); font-size: var(--fs-sm); font-weight: 550; }
.foot-col .btn--link:hover { color: var(--accent); }
.foot-bar {
  border-top: 1px solid var(--ink-100); padding: 18px 40px; max-width: 1240px; margin: 0 auto;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: var(--fs-xs); color: var(--ink-400);
}

/* ------------------------------------------------------------------ *
 * L2 · conversation bubbles + action cards
 * ------------------------------------------------------------------ */
.transcript { display: grid; gap: 12px; align-content: start; }
.tbubble { max-width: 82%; padding: 10px 14px; border-radius: var(--radius-l); font-size: 14.5px; line-height: 1.5; animation: rise .3s var(--ease); }
.tbubble-name { display: block; font-size: 11.5px; font-weight: 700; color: var(--ink-400); margin-bottom: 3px; }
.tbubble-text { color: var(--ink-800); }
.tbubble--caller, .tbubble--customer { background: var(--panel); border: 1px solid var(--ink-100); border-bottom-left-radius: 6px; box-shadow: var(--sh-1); }
.tbubble--ai { background: var(--fo3-100); border: 1px solid var(--fo3-200); border-bottom-left-radius: 6px; margin-left: auto; }
.tbubble--ai .tbubble-name { color: var(--fo3-600); }
.tbubble--live { display: inline-flex; gap: 5px; padding: 13px 16px; margin-left: auto; background: var(--fo3-100); border: 1px solid var(--fo3-200); }
.tdots { display: inline-flex; gap: 4px; }
.tdots i { width: 6px; height: 6px; border-radius: 50%; background: var(--fo3-500); animation: tdots 1.2s infinite; }
.tdots i:nth-child(2) { animation-delay: .18s; }
.tdots i:nth-child(3) { animation-delay: .36s; }
@keyframes tdots { 0%, 60%, 100% { transform: translateY(0); opacity: .5; } 30% { transform: translateY(-4px); opacity: 1; } }
.tbubble--system, .tbubble--note {
  max-width: 100%; display: flex; gap: 8px; align-items: center;
  background: var(--ink-50); border: 1px dashed var(--ink-200); color: var(--ink-500);
  font-size: 12.5px; font-weight: 600; padding: 8px 12px; border-radius: var(--radius-m);
}
.tbubble--system .i, .tbubble--note .i { width: 15px; height: 15px; color: var(--fo3-500); }
.tbubble--note { background: transparent; border-color: var(--ink-100); font-weight: 500; color: var(--ink-400); }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.act { display: flex; gap: 12px; padding: 13px 15px; background: var(--panel); border: 1px solid var(--fo3-200); border-radius: var(--radius-m); box-shadow: var(--sh-1); animation: rise .35s var(--ease); }
.act-ic { width: 34px; height: 34px; flex: none; display: grid; place-items: center; border-radius: 10px; background: var(--fo3-100); color: var(--fo3-600); }
.act-ic .i { width: 18px; height: 18px; }
.act-label { font-size: 13.5px; font-weight: 700; color: var(--ink-900); }
.act-detail { font-size: 12.5px; color: var(--ink-500); margin-top: 1px; }

/* ------------------------------------------------------------------ *
 * L2 · timeline
 * ------------------------------------------------------------------ */
.tl { display: grid; gap: 0; }
.tl-item { display: flex; gap: 16px; padding-bottom: 26px; position: relative; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before { content: ""; position: absolute; left: 15px; top: 34px; bottom: 2px; width: 1.5px; background: var(--ink-100); }
.tl-item:last-child::before { display: none; }
.tl-dot {
  width: 32px; height: 32px; flex: none; border-radius: 50%; display: grid; place-items: center;
  background: var(--panel); border: 1.5px solid var(--ink-200); color: var(--ink-400);
  font-weight: 700; font-size: 13px; z-index: 1;
}
.tl-dot .i { width: 15px; height: 15px; }
.tl-item.is-active .tl-dot { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: var(--ring); }
.tl-item.is-done .tl-dot { background: var(--green-100); border-color: var(--green-500); color: var(--green-600); }
.tl-item.is-done::before { background: var(--green-500); }
.tl-title { font-size: 16px; font-weight: 750; color: var(--ink-900); letter-spacing: -0.01em; }
.tl-text { margin-top: 4px; color: var(--ink-500); font-size: 14.5px; }

/* ------------------------------------------------------------------ *
 * L2 · pricing cards
 * ------------------------------------------------------------------ */
.plan {
  position: relative; background: var(--panel); border: 1.5px solid var(--ink-100);
  border-radius: var(--radius-l); padding: 28px; display: grid; gap: 14px; align-content: start;
  box-shadow: var(--sh-1); transition: transform var(--dur) var(--ease), box-shadow var(--dur), border-color var(--dur);
}
.plan:hover { transform: translateY(-3px); box-shadow: var(--sh-3); }
.plan--primary { border-color: var(--fo3-500); box-shadow: var(--sh-2), 0 0 0 4px var(--fo3-100); }
.plan-flag {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff; font-size: 11.5px; font-weight: 700;
  padding: 4px 12px; border-radius: var(--radius-full); letter-spacing: .04em; white-space: nowrap;
  box-shadow: var(--sh-2);
}
.plan-name { font-size: 17px; font-weight: 800; color: var(--ink-900); }
.plan-tagline { font-size: 13.5px; color: var(--ink-500); min-height: 40px; }
.plan-price { display: flex; align-items: baseline; gap: 3px; }
.plan-cur { font-size: 20px; font-weight: 700; color: var(--ink-600); }
.plan-amt { font-size: 46px; font-weight: 800; letter-spacing: -0.03em; color: var(--ink-900); line-height: 1; }
.plan-per { font-size: 14px; font-weight: 600; color: var(--ink-400); }
.plan-summary { font-size: 13.5px; color: var(--ink-600); font-weight: 600; }
.plan-list { display: grid; gap: 9px; }
.plan-list li { display: flex; gap: 9px; font-size: 13.5px; color: var(--ink-600); }
.plan-note { font-size: 12.5px; color: var(--ink-400); border-top: 1px solid var(--ink-100); padding-top: 12px; }

/* ------------------------------------------------------------------ *
 * L2 · empty state / toasts
 * ------------------------------------------------------------------ */
.empty { text-align: center; padding: 40px 20px; display: grid; gap: 6px; justify-items: center; }
.empty-ic { width: 52px; height: 52px; border-radius: var(--radius-l); display: grid; place-items: center; background: var(--paper); color: var(--ink-300); margin-bottom: 6px; }
.empty-ic .i { width: 26px; height: 26px; }
.empty-title { font-size: 16px; font-weight: 750; color: var(--ink-800); }
.empty-sub { font-size: 13.5px; color: var(--ink-400); max-width: 380px; }
#toast-host { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 1200; display: grid; gap: 8px; justify-items: center; pointer-events: none; }
.toast {
  display: flex; align-items: center; gap: 10px; background: var(--ink-900); color: #fff;
  padding: 11px 18px; border-radius: var(--radius-m); font-size: 14px; font-weight: 600;
  box-shadow: var(--sh-3); opacity: 0; transform: translateY(8px); transition: all .3s var(--ease);
}
.toast.in { opacity: 1; transform: none; }
.toast .i { width: 17px; height: 17px; }
.toast--success { background: var(--green-600); }
.toast--error { background: var(--red-600); }
.toast--info { background: var(--ink-900); }

/* ------------------------------------------------------------------ *
 * L3 · PUBLIC — shared product frame
 * ------------------------------------------------------------------ */
.hero { padding: 84px 40px 56px; max-width: 1240px; margin: 0 auto; }
.page-home { display: block; }
.hero-copy { min-width: 0; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero-eyebrow { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.hero-title { font-size: var(--fs-hero); font-weight: 850; letter-spacing: -0.032em; line-height: 1.04; color: var(--ink-900); }
.hero-title em { font-style: normal; color: var(--fo3-600); }
.hero-sub { margin-top: 20px; font-size: 18px; line-height: 1.55; color: var(--ink-500); max-width: 520px; }
.hero-sub strong { color: var(--ink-800); font-weight: 650; }
.hero-ctas { display: flex; gap: 12px; margin-top: 30px; flex-wrap: wrap; }
.hero-trust { display: flex; align-items: center; gap: 8px; margin-top: 22px; font-size: 13px; color: var(--ink-400); }
.hero-trust .i { width: 15px; height: 15px; color: var(--fo3-500); }
.hero-section { border-top: 1px solid var(--ink-100); }
.sec { max-width: 1240px; margin: 0 auto; padding: 72px 40px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split-copy h2 { font-size: var(--fs-h2); font-weight: 800; letter-spacing: -0.025em; color: var(--ink-900); line-height: 1.15; }
.split-copy > p { margin-top: 14px; font-size: 16px; color: var(--ink-500); }
.split-points { display: grid; gap: 18px; margin-top: 26px; }
.split-points li { display: flex; gap: 14px; }
.split-points .ic { width: 38px; height: 38px; flex: none; display: grid; place-items: center; border-radius: 11px; background: var(--fo3-100); color: var(--fo3-600); }
.split-points h3 { font-size: 15px; font-weight: 750; color: var(--ink-900); }
.split-points p { font-size: 13.5px; color: var(--ink-500); margin-top: 2px; }

/* micro demo (homepage hero) */
.micro-demo {
  background: var(--panel); border: 1px solid var(--ink-100); border-radius: var(--radius-xl);
  box-shadow: var(--sh-3); overflow: hidden; display: grid;
}
.md-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--ink-100); background: var(--paper); }
.md-bar .logo-mark { width: 22px; height: 22px; }
.md-bar-title { font-size: 12px; font-weight: 700; color: var(--ink-500); }
.md-bar-right { margin-left: auto; display: flex; gap: 6px; align-items: center; }
.md-live { font-size: 11px; font-weight: 700; color: var(--green-600); display: flex; align-items: center; gap: 5px; }
.md-live::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--green-500); animation: blink 1.4s infinite; }
@keyframes blink { 50% { opacity: .3; } }
.md-tabs { display: flex; gap: 6px; padding: 12px 16px 0; }
.md-tab {
  display: inline-flex; align-items: center; gap: 7px; padding: 7px 13px; border-radius: var(--radius-s) var(--radius-s) 0 0;
  border: 1px solid transparent; border-bottom: none; background: none; color: var(--ink-500);
  font-size: 13px; font-weight: 650; cursor: pointer; position: relative; top: 1px;
}
.md-tab .i { width: 15px; height: 15px; }
.md-tab.is-active { background: var(--panel); border-color: var(--ink-100); color: var(--fo3-ink); }
.md-screen { padding: 16px; min-height: 300px; display: grid; gap: 12px; align-content: start; }
.md-chips { display: grid; gap: 8px; }
.md-foot { border-top: 1px solid var(--ink-100); padding: 12px 16px; display: flex; align-items: center; gap: 10px; background: var(--paper); }
.md-foot .btn { margin-left: auto; }

/* concept grid (home) */
.concept { display: grid; gap: 14px; }
.concept-ic { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: var(--ink-900); color: var(--fo3-400); }
.concept h3 { font-size: 16px; font-weight: 780; color: var(--ink-900); }
.concept p { font-size: 13.5px; color: var(--ink-500); }
.concept .proof { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--ink-100); font-size: 12.5px; color: var(--fo3-ink); font-weight: 650; }

/* proof cards */
.proof-card { display: grid; gap: 6px; }
.proof-card .ic { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; background: var(--fo3-100); color: var(--fo3-600); margin-bottom: 4px; }
.proof-val { font-size: 32px; font-weight: 800; letter-spacing: -0.03em; color: var(--ink-900); }
.proof-label { font-size: 13.5px; font-weight: 700; color: var(--ink-700); }
.proof-sub { font-size: 12.5px; color: var(--ink-400); }

/* acquisition insight band */
.acq { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.acq-flow { display: grid; gap: 10px; }
.acq-step { display: flex; align-items: center; gap: 12px; padding: 13px 16px; background: var(--panel); border: 1px solid var(--ink-100); border-radius: var(--radius-m); font-size: 14px; font-weight: 650; color: var(--ink-700); }
.acq-step .i { color: var(--fo3-500); }
.acq-step span:last-child { margin-left: auto; font-size: 11.5px; color: var(--ink-300); }

/* ------------------------------------------------------------------ *
 * L3 · PUBLIC — how it works journey
 * ------------------------------------------------------------------ */
.journey { display: grid; grid-template-columns: 460px 1fr; gap: 48px; align-items: start; }
.jv-list { display: grid; gap: 10px; position: sticky; top: 24px; }
.jv-item {
  display: flex; gap: 14px; align-items: flex-start; text-align: left; width: 100%;
  padding: 15px 17px; border-radius: var(--radius-m); border: 1px solid transparent;
  background: none; cursor: pointer; transition: all var(--dur);
  font: inherit; color: inherit;
}
.jv-item:hover { background: var(--paper); }
.jv-item.is-active { background: var(--panel); border-color: var(--fo3-200); box-shadow: var(--sh-1); }
.jv-num {
  width: 28px; height: 28px; flex: none; border-radius: 50%; display: grid; place-items: center;
  background: var(--ink-100); color: var(--ink-500); font-size: 13px; font-weight: 750;
}
.jv-item.is-active .jv-num { background: var(--accent); color: #fff; }
.jv-item.is-done .jv-num { background: var(--green-100); color: var(--green-600); }
.jv-item h3 { font-size: 14.5px; font-weight: 750; color: var(--ink-900); }
.jv-item p { font-size: 12.5px; color: var(--ink-400); margin-top: 2px; }
.jv-stage { background: var(--panel); border: 1px solid var(--ink-100); border-radius: var(--radius-l); box-shadow: var(--sh-2); overflow: hidden; min-height: 480px; }
.jv-stage-head { display: flex; align-items: center; gap: 12px; padding: 16px 24px; border-bottom: 1px solid var(--ink-100); }
.jv-stage-head .badge { margin-left: auto; }
.jv-stage-title { font-size: 13px; font-weight: 750; color: var(--ink-600); }
.jv-stage-body { padding: 28px; display: grid; gap: 22px; }
.jv-illus { border-radius: var(--radius-m); border: 1px solid var(--ink-100); background: var(--paper); padding: 22px; }
.jv-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.jv-col { padding: 15px 17px; border-radius: var(--radius-m); }
.jv-col h4 { font-size: 11.5px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 8px; display: flex; align-items: center; gap: 7px; }
.jv-col p { font-size: 13.5px; line-height: 1.55; }
.jv-col--customer { background: var(--fo3-100); color: var(--fo3-ink); }
.jv-col--business { background: var(--ink-50); color: var(--ink-600); }
.jv-actions { display: flex; gap: 10px; }

.jv-illus-phone { display: grid; place-items: center; gap: 12px; text-align: center; }
.jv-illus-phone .ic-lg { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--accent); color: #fff; }
.jv-illus-phone p { font-size: 14px; font-weight: 650; color: var(--ink-700); max-width: 300px; }
.jv-illus-flow { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: center; }
.jv-illus-node { display: grid; gap: 6px; justify-items: center; padding: 14px 18px; background: var(--panel); border: 1px solid var(--ink-100); border-radius: var(--radius-m); font-size: 12.5px; font-weight: 650; color: var(--ink-700); min-width: 110px; }
.jv-illus-node .ic { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 9px; background: var(--fo3-100); color: var(--fo3-600); }
.jv-illus-node b { color: var(--fo3-ink); }
.jv-illus-arrow { color: var(--ink-300); }
.jv-illus-mem { display: grid; gap: 8px; }
.jv-illus-mem li { display: flex; gap: 10px; align-items: center; background: var(--panel); border: 1px solid var(--ink-100); border-radius: var(--radius-s); padding: 9px 12px; font-size: 12.5px; color: var(--ink-600); }
.jv-illus-mem .ic { color: var(--fo3-500); }

/* ------------------------------------------------------------------ *
 * L3 · PUBLIC — pricing / faq / use cases
 * ------------------------------------------------------------------ */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.policy-note { margin-top: 28px; padding: 18px 22px; border: 1px dashed var(--amber-400); background: var(--amber-100); border-radius: var(--radius-m); }
.policy-note h3 { font-size: 13px; font-weight: 800; color: var(--amber-600); display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.policy-note ul { display: grid; gap: 3px; }
.policy-note li { font-size: 12.5px; color: var(--amber-600); }
.faq { display: grid; gap: 10px; max-width: 780px; }
.faq-item { background: var(--panel); border: 1px solid var(--ink-100); border-radius: var(--radius-m); overflow: hidden; }
.faq-item summary { cursor: pointer; list-style: none; padding: 16px 20px; font-weight: 700; font-size: 14.5px; color: var(--ink-800); display: flex; align-items: center; gap: 12px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .i { margin-left: auto; width: 18px; height: 18px; color: var(--ink-400); transition: transform var(--dur); }
.faq-item[open] summary .i { transform: rotate(180deg); }
.faq-item p { padding: 0 20px 18px; font-size: 14px; color: var(--ink-500); }

.uc { display: grid; gap: 12px; align-content: start; }
.uc-ic { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--ink-900); color: var(--fo3-400); }
.uc h3 { font-size: 16.5px; font-weight: 780; color: var(--ink-900); }
.uc-leak { font-size: 13.5px; color: var(--ink-500); }
.uc-leak b { color: var(--red-600); font-weight: 700; }
.uc-fo3 { font-size: 13.5px; color: var(--fo3-ink); font-weight: 600; background: var(--fo3-100); border-radius: var(--radius-m); padding: 12px 14px; }

/* ------------------------------------------------------------------ *
 * L3 · PUBLIC — demo lobby
 * ------------------------------------------------------------------ */
.demo-lobby { max-width: 860px; margin: 0 auto; padding: 64px 24px 40px; text-align: center; }
.lobby-eyebrow { justify-content: center; }
.lobby-title { font-size: clamp(30px, 4vw, 44px); font-weight: 850; letter-spacing: -0.03em; color: var(--ink-900); }
.lobby-sub { margin: 14px auto 0; font-size: 16.5px; color: var(--ink-500); max-width: 520px; }
.lobby-card {
  margin-top: 36px; text-align: left; background: var(--panel); border: 1px solid var(--ink-100);
  border-radius: var(--radius-xl); box-shadow: var(--sh-3); overflow: hidden;
}
.lobby-merchant { display: flex; align-items: center; gap: 16px; padding: 22px 26px; border-bottom: 1px solid var(--ink-100); }
.lobby-merchant .logo-mark { width: 44px; height: 44px; background: linear-gradient(135deg, #374151, #111827); }
.lobby-m-info h2 { font-size: 18px; font-weight: 800; color: var(--ink-900); }
.lobby-m-info p { font-size: 12.5px; color: var(--ink-400); }
.lobby-body { padding: 30px 26px; display: grid; gap: 22px; }
.lobby-role { text-align: center; }
.lobby-role h3 { font-size: 20px; font-weight: 800; color: var(--ink-900); }
.lobby-role p { font-size: 14px; color: var(--ink-500); margin-top: 6px; max-width: 460px; margin-inline: auto; }
.lobby-channels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.lobby-ch {
  display: grid; gap: 8px; justify-items: center; text-align: center; padding: 22px 14px;
  background: var(--paper); border: 1.5px solid var(--ink-100); border-radius: var(--radius-l);
  cursor: pointer; transition: all var(--dur) var(--ease); font: inherit;
}
.lobby-ch:hover { border-color: var(--fo3-400); background: var(--fo3-100); transform: translateY(-2px); }
.lobby-ch .ic { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: var(--panel); color: var(--fo3-600); border: 1px solid var(--ink-100); }
.lobby-ch b { font-size: 14.5px; color: var(--ink-900); }
.lobby-ch span { font-size: 12px; color: var(--ink-400); }
.lobby-scenario { display: flex; gap: 10px; align-items: flex-start; background: var(--amber-100); border-radius: var(--radius-m); padding: 13px 16px; font-size: 13px; color: var(--amber-600); }
.lobby-scenario .i { width: 16px; height: 16px; flex: none; margin-top: 2px; }

/* ------------------------------------------------------------------ *
 * L3 · DEMO — smart front door
 * ------------------------------------------------------------------ */
.demo-shell { max-width: 1180px; margin: 0 auto; padding: 32px 24px 64px; }
.demo-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.demo-top .btn--link { color: var(--ink-500); }

.frontdoor { background: var(--panel); border: 1px solid var(--ink-100); border-radius: var(--radius-xl); box-shadow: var(--sh-3); overflow: hidden; }
.fd-brand { display: flex; align-items: center; gap: 14px; padding: 20px 28px; border-bottom: 1px solid var(--ink-100); background: linear-gradient(180deg, var(--ink-900), #101B26); color: #fff; }
.fd-brand .logo-mark { width: 42px; height: 42px; background: linear-gradient(135deg, #475569, #0f172a); }
.fd-brand-info h1 { font-size: 17px; font-weight: 800; letter-spacing: -0.01em; }
.fd-brand-info p { font-size: 12px; color: var(--ink-300); }
.fd-brand .badge { margin-left: auto; background: rgba(255,255,255,.12); color: var(--fo3-300); }
.fd-actions { display: flex; gap: 8px; padding: 14px 28px; border-bottom: 1px solid var(--ink-100); overflow-x: auto; }
.fd-actions .btn { flex: none; }
.fd-actions .btn.is-on { background: var(--accent); color: #fff; }
.fd-body { display: grid; grid-template-columns: 1fr 320px; min-height: 480px; }
.fd-main { padding: 24px 28px; display: grid; gap: 18px; align-content: start; border-right: 1px solid var(--ink-100); min-width: 0; }
.fd-side { padding: 20px; display: grid; gap: 16px; align-content: start; background: var(--paper); }

.fd-hp { display: grid; gap: 16px; }
.fd-hp-head { display: flex; align-items: flex-start; gap: 14px; }
.fd-hp-head .ic { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: var(--fo3-100); color: var(--fo3-600); flex: none; }
.fd-hp h2 { font-size: 20px; font-weight: 800; color: var(--ink-900); letter-spacing: -0.01em; }
.fd-hp p { font-size: 13.5px; color: var(--ink-500); margin-top: 2px; }
.fd-quick { display: grid; gap: 8px; }
.fd-quick .btn { justify-content: flex-start; text-align: left; }

.fd-chat { display: grid; gap: 14px; align-content: start; }
.fd-chat-input { display: flex; gap: 10px; align-items: flex-end; }
.fd-chat-input .ctrl { flex: 1; }
.fd-chat-input .btn { flex: none; }

/* call stage */
.conv { display: grid; gap: 16px; }
.conv-top { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.conv-main { display: grid; gap: 14px; }
.callstage { display: grid; gap: 20px; justify-items: center; text-align: center; padding: 26px 0 10px; }
.caller { display: grid; gap: 10px; justify-items: center; }
.caller-av { width: 84px; height: 84px; border-radius: 50%; background: linear-gradient(135deg, var(--fo3-400), var(--fo3-700)); color: #fff; display: grid; place-items: center; font-size: 30px; font-weight: 800; box-shadow: var(--sh-3), 0 0 0 10px var(--fo3-100); }
.caller b { font-size: 19px; color: var(--ink-900); }
.caller span { font-size: 13px; color: var(--ink-400); }
.call-timer { font-family: var(--fo3-mono); font-size: 15px; font-weight: 700; color: var(--ink-600); letter-spacing: .06em; }
.call-viz { display: flex; gap: 4px; align-items: flex-end; height: 34px; }
.call-viz i { width: 5px; border-radius: 3px; background: var(--fo3-400); animation: viz 1s var(--ease) infinite; }
.call-viz i:nth-child(1) { height: 30%; } .call-viz i:nth-child(2) { height: 70%; animation-delay: .12s; }
.call-viz i:nth-child(3) { height: 45%; animation-delay: .24s; } .call-viz i:nth-child(4) { height: 90%; animation-delay: .36s; }
.call-viz i:nth-child(5) { height: 55%; animation-delay: .48s; } .call-viz i:nth-child(6) { height: 75%; animation-delay: .6s; }
.call-viz i:nth-child(7) { height: 35%; animation-delay: .72s; }
@keyframes viz { 50% { transform: scaleY(.55); } }
.call-actions { display: flex; gap: 12px; }

.idcard { display: grid; gap: 14px; }
.idcard-head { display: flex; gap: 12px; align-items: center; }
.idcard-av { width: 46px; height: 46px; border-radius: 50%; background: linear-gradient(135deg, var(--ink-600), var(--ink-900)); color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 17px; flex: none; }
.idcard-av--new { background: linear-gradient(135deg, var(--fo3-400), var(--fo3-600)); }
.idcard-head b { font-size: 15px; color: var(--ink-900); display: block; }
.idcard-head span { font-size: 12px; color: var(--ink-400); }
.idcard-head .badge { margin-left: auto; }
.idcard .kv-row { padding: 6px 0; }
.idcard-hist { display: grid; gap: 6px; }
.idcard-hist li { display: flex; gap: 9px; font-size: 12.5px; color: var(--ink-600); align-items: flex-start; }
.idcard-hist .ic { width: 15px; height: 15px; color: var(--fo3-500); margin-top: 2px; flex: none; }
.idcard-tags { display: flex; gap: 6px; flex-wrap: wrap; }

.chipstream { display: grid; gap: 8px; }
.stream-label { font-size: 11.5px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-400); display: flex; align-items: center; gap: 8px; }
.stream-label .status-dot { font-size: 11.5px; }
.outcome { display: grid; gap: 8px; background: var(--green-100); border-radius: var(--radius-m); padding: 14px 16px; animation: rise .4s var(--ease); }
.outcome-title { font-size: 14px; font-weight: 800; color: var(--green-600); display: flex; align-items: center; gap: 8px; }
.outcome ul { display: grid; gap: 3px; }
.outcome li { font-size: 13px; color: var(--fo3-ink); }
.outcome-value { font-size: 12px; font-weight: 700; color: var(--green-600); border-top: 1px dashed rgba(6,118,71,.3); padding-top: 8px; margin-top: 4px; }

/* ------------------------------------------------------------------ *
 * L3 · DEMO — customer room (consumer surface)
 * ------------------------------------------------------------------ */
.room-wrap { min-height: 100%; background: linear-gradient(180deg, var(--paper-deep), var(--paper)); padding: 40px 20px 64px; display: grid; place-items: start center; }
.room { width: 100%; max-width: 560px; display: grid; gap: 16px; }
.room-banner { display: flex; gap: 10px; align-items: center; justify-content: center; background: var(--ink-900); color: var(--fo3-200); font-size: 12px; font-weight: 600; border-radius: var(--radius-m); padding: 8px 14px; }
.room-banner .ic { color: var(--fo3-400); }
.room-card { background: var(--panel); border: 1px solid var(--ink-100); border-radius: var(--radius-l); box-shadow: var(--sh-2); overflow: hidden; }
.room-head { display: flex; align-items: center; gap: 13px; padding: 18px 22px; border-bottom: 1px solid var(--ink-100); }
.room-head .logo-mark { width: 40px; height: 40px; background: linear-gradient(135deg, #334155, #0f172a); }
.room-head h2 { font-size: 15.5px; font-weight: 800; color: var(--ink-900); }
.room-head p { font-size: 11.5px; color: var(--ink-400); display: flex; align-items: center; gap: 5px; }
.room-head .ic { width: 12px; height: 12px; color: var(--green-500); }
.room-head .chip { margin-left: auto; }
.room-status { padding: 22px; display: grid; gap: 6px; }
.room-status h3 { font-size: 21px; font-weight: 820; color: var(--ink-900); letter-spacing: -0.02em; }
.room-status p { font-size: 13.5px; color: var(--ink-500); }
.room-status .badge { justify-self: start; margin-bottom: 6px; }
.appt { margin: 6px 22px 22px; border: 1.5px solid var(--fo3-200); background: var(--fo3-100); border-radius: var(--radius-m); overflow: hidden; }
.appt-row { display: flex; align-items: center; gap: 14px; padding: 14px 16px; }
.appt-row + .appt-row { border-top: 1px solid var(--fo3-200); }
.appt-row .ic { width: 20px; height: 20px; color: var(--fo3-600); flex: none; }
.appt-row b { display: block; font-size: 14px; color: var(--fo3-ink); }
.appt-row span { font-size: 12px; color: var(--ink-500); }
.appt-btn { margin-left: auto; }
.room-thread { padding: 6px 22px 18px; display: grid; gap: 10px; }
.room-msg { max-width: 85%; padding: 10px 14px; border-radius: var(--radius-l); font-size: 13.5px; line-height: 1.5; }
.room-msg.customer { background: var(--ink-50); color: var(--ink-700); border-bottom-left-radius: 5px; }
.room-msg.ai { background: var(--fo3-600); color: #fff; margin-left: auto; border-bottom-left-radius: 5px; }
.room-msg .at { display: block; font-size: 10.5px; opacity: .65; margin-top: 4px; }
.room-sec { padding: 16px 22px 20px; border-top: 1px solid var(--ink-100); display: grid; gap: 12px; }
.room-sec h4 { font-size: 11.5px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-400); }
.room-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.room-pay { display: flex; align-items: center; gap: 13px; background: var(--amber-100); border-radius: var(--radius-m); padding: 13px 15px; }
.room-pay .ic { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; background: #fff; color: var(--amber-600); flex: none; }
.room-pay b { font-size: 13.5px; color: var(--amber-600); display: block; }
.room-pay span { font-size: 12px; color: var(--amber-600); opacity: .85; }
.room-pay .btn { margin-left: auto; flex: none; }
.room-docs { display: grid; gap: 8px; }
.room-docs li { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink-600); background: var(--ink-50); border-radius: var(--radius-s); padding: 9px 12px; }
.room-docs .ic { color: var(--fo3-500); }
.room-expired { text-align: center; display: grid; gap: 14px; justify-items: center; padding: 20px 0 8px; }
.room-expired .ic-lg { width: 54px; height: 54px; border-radius: var(--radius-l); background: var(--ink-100); color: var(--ink-400); display: grid; place-items: center; }
.room-foot { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 11.5px; color: var(--ink-400); }
.room-foot .ic { width: 13px; height: 13px; color: var(--green-500); }

/* ------------------------------------------------------------------ *
 * L3 · AUTH surfaces
 * ------------------------------------------------------------------ */
.auth { min-height: 100%; display: grid; place-items: center; padding: 48px 20px 64px; background: radial-gradient(1200px 500px at 50% -100px, var(--fo3-100), var(--paper-deep)); }
.auth-card { width: 100%; max-width: 440px; background: var(--panel); border: 1px solid var(--ink-100); border-radius: var(--radius-xl); box-shadow: var(--sh-3); padding: 36px; display: grid; gap: 22px; }
.auth-card--wide { max-width: 560px; }
.auth-brand { justify-self: center; text-align: center; display: grid; gap: 12px; justify-items: center; }
.auth-head { text-align: center; display: grid; gap: 6px; }
.auth-head h1 { font-size: 24px; font-weight: 820; letter-spacing: -0.02em; color: var(--ink-900); }
.auth-head p { font-size: 14px; color: var(--ink-500); }
.auth-form { display: grid; gap: 16px; }
.auth-form .grid-col2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.auth-alt { text-align: center; font-size: 13.5px; color: var(--ink-500); }
.auth-note { display: flex; gap: 9px; align-items: flex-start; background: var(--ink-50); border-radius: var(--radius-m); padding: 11px 14px; font-size: 12.5px; color: var(--ink-500); }
.auth-note .ic { width: 15px; height: 15px; color: var(--fo3-500); flex: none; margin-top: 1px; }
.auth-alert { display: flex; gap: 10px; align-items: flex-start; border-radius: var(--radius-m); padding: 12px 15px; font-size: 13px; font-weight: 600; }
.auth-alert .ic { width: 17px; height: 17px; flex: none; margin-top: 1px; }
.auth-alert--error { background: var(--red-100); color: var(--red-600); }
.auth-alert--warn { background: var(--amber-100); color: var(--amber-600); }
.auth-alert--ok { background: var(--green-100); color: var(--green-600); }

.code-inputs { display: flex; gap: 10px; justify-content: center; }
.code-char {
  width: 52px; height: 60px; text-align: center; font-size: 24px; font-weight: 800;
  border: 1.5px solid var(--ink-200); border-radius: var(--radius-m); color: var(--ink-900);
  font-family: var(--fo3-mono); background: var(--panel);
}
.code-char:focus { outline: none; border-color: var(--fo3-500); box-shadow: var(--ring); }
.code-inputs.is-invalid .code-char { border-color: var(--red-500); }
.code-inputs.is-valid .code-char { border-color: var(--green-500); }
.code-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12.5px; color: var(--ink-500); }
.code-attempts { font-weight: 650; }
.sms-preview { border: 1.5px dashed var(--fo3-300); background: var(--fo3-100); border-radius: var(--radius-m); padding: 14px 16px; }
.sms-preview .sms-from { font-size: 11px; font-weight: 800; letter-spacing: .08em; color: var(--fo3-600); margin-bottom: 4px; }
.sms-preview .sms-code { font-family: var(--fo3-mono); font-size: 26px; font-weight: 800; color: var(--fo3-ink); letter-spacing: .14em; }
.sms-preview .sms-note { font-size: 11.5px; color: var(--fo3-ink); opacity: .75; margin-top: 4px; }

.success-hero { text-align: center; display: grid; gap: 14px; justify-items: center; }
.success-ic { width: 72px; height: 72px; border-radius: 50%; background: var(--green-100); color: var(--green-600); display: grid; place-items: center; box-shadow: 0 0 0 10px rgba(18,183,106,.12); }
.success-ic .i { width: 36px; height: 36px; }
.success-hero h1 { font-size: 26px; font-weight: 850; letter-spacing: -0.02em; color: var(--ink-900); }
.success-hero p { font-size: 14.5px; color: var(--ink-500); max-width: 380px; }
.next-list { display: grid; gap: 10px; width: 100%; text-align: left; }
.next-list li { display: flex; gap: 12px; align-items: center; padding: 13px 15px; background: var(--paper); border-radius: var(--radius-m); }
.next-list .ic { width: 18px; height: 18px; color: var(--fo3-600); flex: none; }
.next-list b { font-size: 13.5px; color: var(--ink-800); display: block; }
.next-list span { font-size: 12px; color: var(--ink-400); }
.boundary { border-top: 1px dashed var(--ink-200); padding-top: 18px; }
.boundary h3 { font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-400); margin-bottom: 10px; }
.boundary p { font-size: 13px; color: var(--ink-500); }

/* ------------------------------------------------------------------ *
 * L3 · utility pages
 * ------------------------------------------------------------------ */
.legal { max-width: 760px; margin: 0 auto; padding: 56px 24px 64px; display: grid; gap: 26px; }
.legal-sec h2 { font-size: 19px; font-weight: 800; color: var(--ink-900); margin-bottom: 10px; }
.legal-sec p, .legal-sec li { font-size: 14px; color: var(--ink-500); line-height: 1.65; }
.legal-sec ul { display: grid; gap: 6px; padding-left: 18px; list-style: disc; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-card { display: grid; gap: 8px; }
.contact-card .ic { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; background: var(--fo3-100); color: var(--fo3-600); }
.contact-card b { font-size: 15px; color: var(--ink-900); }
.contact-card p { font-size: 13.5px; color: var(--ink-500); }

/* ------------------------------------------------------------------ *
 * L4 · RUNTIME SYSTEM — host frames, viewport simulation
 * ------------------------------------------------------------------ */
#app { min-height: 100vh; display: flex; flex-direction: column; background: var(--paper-deep); }
#main-host { flex: 1; min-height: 0; position: relative; }
#main-host > .lab-host { min-height: 100%; container-type: inline-size; container-name: lab; }
#product { min-height: 100vh; background: var(--paper); }

/* viewport simulation frames (lab mode) */
#app[data-vp="390"] #main-host > .lab-host,
#app[data-vp="768"] #main-host > .lab-host,
#app[data-vp="1440"] #main-host > .lab-host {
  margin: 0 auto; background: var(--paper); min-height: calc(100vh - var(--lab-h, 48px));
  box-shadow: var(--sh-4); border-left: 1px solid var(--ink-100); border-right: 1px solid var(--ink-100);
  position: relative;
}
#app[data-vp="390"] #main-host > .lab-host { width: 390px; }
#app[data-vp="768"] #main-host > .lab-host { width: 768px; }
#app[data-vp="1440"] #main-host > .lab-host { width: 1440px; }
#app[data-vp="390"] #product, #app[data-vp="768"] #product, #app[data-vp="1440"] #product { min-height: calc(100vh - var(--lab-h, 48px)); }

/* overlays open inside the simulated frame */
#app.has-ov { overflow: hidden; }
#overlay-host { position: fixed; inset: 0; z-index: 900; pointer-events: none; }
#overlay-host:empty { display: none; }
#overlay-host > * { pointer-events: auto; }
.ov-backdrop { position: absolute; inset: 0; background: rgba(11,18,32,.5); backdrop-filter: blur(2px); animation: fade .2s var(--ease); }
@keyframes fade { from { opacity: 0; } }
.ov-wrap { position: absolute; inset: 0; display: flex; }
.panel--drawer { margin-left: auto; width: min(460px, 100%); background: var(--panel); height: 100%; overflow-y: auto; box-shadow: var(--sh-4); display: flex; flex-direction: column; animation: slideR .3s var(--ease); }
@keyframes slideR { from { transform: translateX(40px); opacity: .4; } }
.panel--sheet { margin-top: auto; width: 100%; background: var(--panel); border-radius: var(--radius-xl) var(--radius-xl) 0 0; max-height: 88%; overflow-y: auto; box-shadow: var(--sh-4); animation: slideU .3s var(--ease); }
@keyframes slideU { from { transform: translateY(60px); opacity: .6; } }
.sheet-grab { width: 44px; height: 5px; border-radius: 3px; background: var(--ink-200); margin: 10px auto 0; }
.panel--modal-wrap { margin: auto; width: min(520px, calc(100% - 32px)); }
.panel--modal { margin: auto; width: min(520px, calc(100vw - 32px)); max-height: min(720px, calc(100vh - 48px)); overflow-y: auto; background: var(--panel); border-radius: var(--radius-l); box-shadow: var(--sh-4); animation: pop .25s var(--ease); }
@keyframes pop { from { transform: scale(.96) translateY(8px); opacity: 0; } }
.panel-head { display: flex; align-items: flex-start; gap: 14px; padding: 20px 22px 14px; }
.panel-title { font-size: 17px; font-weight: 800; color: var(--ink-900); letter-spacing: -0.01em; }
.panel-sub { font-size: 13px; color: var(--ink-500); margin-top: 3px; }
.panel-head .icon-btn { margin-left: auto; }
.panel-body { padding: 6px 22px 18px; display: grid; gap: 14px; overflow-y: auto; flex: 1; }
.panel-foot { padding: 14px 22px 20px; border-top: 1px solid var(--ink-100); display: flex; gap: 10px; flex-wrap: wrap; }
.panel-foot--end { justify-content: flex-end; }
.ov-close { position: absolute; top: 14px; right: 14px; z-index: 5; width: 32px; height: 32px; border: none; border-radius: var(--radius-s); background: var(--ink-50); color: var(--ink-600); cursor: pointer; display: grid; place-items: center; }
.ov-close:hover { background: var(--ink-100); }
.ov-close .i { width: 16px; height: 16px; }

/* keep overlays inside the simulated viewport */
#app[data-vp="390"] #overlay-host, #app[data-vp="768"] #overlay-host, #app[data-vp="1440"] #overlay-host {
  inset: var(--lab-h, 48px) auto 0 50%;
}
#app[data-vp="390"] #overlay-host { transform: translateX(-50%); width: 390px; }
#app[data-vp="768"] #overlay-host { transform: translateX(-50%); width: 768px; }
#app[data-vp="1440"] #overlay-host { transform: translateX(-50%); width: 1440px; }
#app[data-vp="390"] #toast-host { width: 390px; left: 50%; }
#app[data-vp="768"] #toast-host, #app[data-vp="1440"] #toast-host { left: 50%; }

/* ------------------------------------------------------------------ *
 * L4 · LAB toolbar + product index
 * ------------------------------------------------------------------ */
#lab {
  position: sticky; top: 0; z-index: 1000; height: var(--lab-h, 48px);
  display: flex; align-items: center; gap: 14px; padding: 0 16px;
  background: var(--ink-900); color: #fff; font-size: 12.5px;
}
.lab-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: .02em; color: #fff; }
.lab-brand .logo-mark { width: 20px; height: 20px; }
.lab-tag { background: var(--fo3-600); color: #fff; font-size: 10px; font-weight: 800; padding: 2px 8px; border-radius: var(--radius-full); letter-spacing: .08em; }
.lab-links { display: flex; gap: 2px; }
.lab-link { color: var(--ink-300); font-size: 12px; font-weight: 650; padding: 5px 10px; border-radius: 7px; text-decoration: none; }
.lab-link:hover { color: #fff; background: rgba(255,255,255,.08); text-decoration: none; }
.lab-link.is-active { color: #fff; background: var(--fo3-700); }
.lab-spacer { flex: 1; }
.lab-viewport { display: flex; align-items: center; gap: 7px; }
.lab-viewport .i { width: 15px; height: 15px; color: var(--ink-300); }
.vp-drop {
  background: rgba(255,255,255,.1); color: #fff; border: 1px solid rgba(255,255,255,.16);
  border-radius: 8px; font-size: 12px; font-weight: 650; padding: 5px 9px; cursor: pointer;
}
.vp-drop option { color: var(--ink-800); }
.lab-btn {
  background: var(--fo3-600); color: #fff; border: none; border-radius: 8px;
  font-size: 12px; font-weight: 700; padding: 6px 12px; cursor: pointer; white-space: nowrap;
}
.lab-btn:hover { background: var(--fo3-500); }
.lab-btn--ghost { background: rgba(255,255,255,.1); }
.lab-btn--ghost:hover { background: rgba(255,255,255,.18); }

/* product index panel */
#lab-index { position: fixed; top: var(--lab-h, 48px); right: 0; bottom: 0; width: min(560px, 100vw); background: var(--panel); border-left: 1px solid var(--ink-100); box-shadow: var(--sh-4); z-index: 950; display: flex; flex-direction: column; transform: translateX(100%); transition: transform .3s var(--ease); }
#lab-index.is-open { transform: none; }
#app[data-vp] #lab-index { left: auto; }
#app[data-vp="390"] #lab-index { left: auto; }
#app[data-vp="768"] #lab-index { left: auto; }
#app[data-vp="1440"] #lab-index { left: auto; }
.li-head { display: flex; align-items: center; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--ink-100); }
.li-head h2 { font-size: 16px; font-weight: 800; color: var(--ink-900); }
.li-head .icon-btn { margin-left: auto; }
.li-body { overflow-y: auto; padding: 18px 20px 28px; display: grid; gap: 22px; }
.li-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.li-stat { background: var(--paper); border-radius: var(--radius-m); padding: 11px 13px; }
.li-stat b { display: block; font-size: 19px; font-weight: 800; color: var(--ink-900); }
.li-stat span { font-size: 11px; color: var(--ink-400); font-weight: 600; }
.li-group h3 { font-size: 11.5px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-400); margin-bottom: 8px; }
.li-row { display: grid; grid-template-columns: 1fr auto auto; gap: 8px; align-items: center; padding: 9px 10px; border-radius: var(--radius-s); border: 1px solid transparent; }
.li-row:hover { background: var(--paper); border-color: var(--ink-100); }
.li-row.is-current { background: var(--fo3-100); border-color: var(--fo3-200); }
.li-id { font-family: var(--fo3-mono); font-size: 12px; font-weight: 700; color: var(--fo3-ink); }
.li-title { font-size: 12.5px; color: var(--ink-600); }
.li-meta { font-size: 11px; color: var(--ink-400); text-align: right; white-space: nowrap; }
.li-open { font-size: 11.5px; font-weight: 700; }
.li-journey { display: grid; gap: 6px; }
.li-journey li { display: flex; gap: 10px; font-size: 12.5px; color: var(--ink-600); align-items: flex-start; }
.li-journey .ic { width: 15px; height: 15px; color: var(--fo3-500); flex: none; margin-top: 2px; }
.li-note { font-size: 11.5px; color: var(--ink-400); border-top: 1px dashed var(--ink-200); padding-top: 14px; }

/* ------------------------------------------------------------------ *
 * Responsive composition rules — mobile is NOT compressed desktop.
 * These are CONTAINER queries on the runtime frame (#lab-host), so they
 * fire for the simulated viewport (390/768/1440) as well as real devices.
 * ------------------------------------------------------------------ */
@container lab (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding-top: 56px; }
  .journey { grid-template-columns: 1fr; }
  .jv-list { position: static; grid-template-columns: repeat(5, 1fr); gap: 6px; overflow-x: auto; padding-bottom: 6px; }
  .jv-item { flex-direction: column; align-items: center; text-align: center; padding: 10px 8px; min-width: 108px; }
  .jv-item p { display: none; }
  .price-grid { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
  .price-grid .plan--primary { order: -1; }
  .split { grid-template-columns: 1fr; gap: 28px; }
  .acq { grid-template-columns: 1fr; }
  .fd-body { grid-template-columns: 1fr; }
  .fd-main { border-right: none; border-bottom: 1px solid var(--ink-100); }
  .fd-side { background: var(--panel); }
}

@container lab (max-width: 900px) {
  .page { padding: 40px 20px 64px; }
  .hero { padding: 44px 20px 44px; }
  .sec { padding: 52px 20px; }
  .foot-main { grid-template-columns: 1fr; gap: 28px; padding: 36px 20px 24px; }
  .foot-nav { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .foot-bar { padding: 14px 20px; }
  .cta-band { padding: 32px 24px; }
  .contact-grid { grid-template-columns: 1fr; }
  .lobby-channels { grid-template-columns: 1fr; }
  .jv-cols { grid-template-columns: 1fr; }
  .jv-stage-body { padding: 18px; }
}

@container lab (max-width: 640px) {
  #product { font-size: 15px; }
  .hero-eyebrow .chip { border-radius: var(--radius-m); font-size: 11.5px; padding: 3px 10px; text-align: left; }
  .hero-title { font-size: clamp(30px, 9vw, 40px); }
  .hero-sub { font-size: 16px; }
  .hero-ctas .btn { flex: 1; }
  .page-actions .btn { flex: 1; }
  .card { padding: 20px; }
  .sec-head { margin-bottom: 20px; }
  .grid { grid-template-columns: 1fr; }
  .foot-nav { grid-template-columns: 1fr 1fr; }
  .auth-card { padding: 26px 20px; }
  .auth-form .grid-col2 { grid-template-columns: 1fr; }
  .code-char { width: 46px; height: 54px; font-size: 21px; }
  .code-inputs { gap: 7px; }
  .demo-shell { padding: 20px 14px 48px; }
  .frontdoor { border-radius: var(--radius-l); }
  .fd-brand, .fd-actions, .fd-main, .fd-side { padding-inline: 16px; }
  .room-wrap { padding: 20px 12px 48px; }
  .tbubble { max-width: 92%; }
  .jv-list { grid-template-columns: repeat(5, minmax(96px, 1fr)); }
  .plan { padding: 22px; }
  .plan-amt { font-size: 38px; }
  .steps-item + .steps-item::before { width: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}