/*
  Golden Ratio Typography (GRT) — https://grtcalculator.com/math/
  φ = (1 + √5) / 2 ≈ 1.6180339887
  1/φ = φ − 1 ≈ 0.6180339887

  1) Type scale from primary f: f/φ² … f·φ³
  2) Line heights h = f · q  (body q ≈ 1 + 1/φ)
  3) Spacing from primary line height h₀
  4) Layout splits at 1 : φ  (≈ 38.2% / 61.8%)
  Brand accent #1a4fdb is HTMTN — not from GRT.
*/

:root {
  --phi: 1.6180339887;
  --phi-inv: 0.6180339887;

  /* Primary font size f */
  --f: 16px;
  --f-2: calc(var(--f) / var(--phi) / var(--phi));
  --f-1: calc(var(--f) / var(--phi));
  --f0: var(--f);
  --f1: calc(var(--f) * var(--phi));
  --f2: calc(var(--f) * var(--phi) * var(--phi));
  --f3: calc(var(--f) * var(--phi) * var(--phi) * var(--phi));

  /* Practical web-clamped scale (φ-stepped bands) */
  --text-xs: clamp(0.6875rem, 0.65rem + 0.15vw, 0.75rem);
  --text-sm: clamp(0.8125rem, 0.78rem + 0.15vw, 0.875rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --text-md: clamp(1.125rem, 1.05rem + 0.35vw, 1.25rem);
  --text-lg: clamp(1.375rem, 1.2rem + 0.7vw, 1.618rem);
  --text-xl: clamp(1.75rem, 1.4rem + 1.4vw, 2.618rem);
  --text-2xl: clamp(2.25rem, 1.7rem + 2.2vw, 3.236rem);

  /* Line heights */
  --lh-tight: 1.2;
  --lh-snug: calc(1 + var(--phi-inv) * 0.5);
  --lh-body: calc(1 + var(--phi-inv)); /* ≈ 1.618 */
  --lh-loose: var(--phi);

  /* Primary line-height length → spacing base */
  --h0: calc(var(--f) * var(--lh-body));
  --s-1: calc(var(--h0) * 0.25);
  --s-2: calc(var(--h0) * 0.5);
  --s-3: calc(var(--h0) * var(--phi-inv));
  --s-4: var(--h0);
  --s-5: calc(var(--h0) * var(--phi));
  --s-6: calc(var(--h0) * var(--phi) * var(--phi));

  --measure: 38rem; /* ~φ-friendly measure */
  --wrap: 56.8rem; /* ≈ 35 * φ */

  /* Layout golden split */
  --grid-minor: 1fr;
  --grid-major: var(--phi)fr;

  --radius-sm: calc(var(--h0) * 0.2);
  --radius: calc(var(--h0) * var(--phi-inv) * 0.55);
  --radius-lg: calc(var(--h0) * var(--phi-inv));
  --radius-pill: 999px;

  /* Dark HTMTN product palette */
  --bg: #0b1020;
  --bg2: #121a33;
  --card: #161f3d;
  --text: #eef2ff;
  --muted: #9aa6c8;
  --accent: #1a4fdb;
  --accent2: #5b8cff;
  --good: #3ecf8e;
  --warn: #f0b429;
  --danger: #f07178;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);

  --font: "DM Sans", system-ui, sans-serif;
  --display: "Fraunces", Georgia, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, #1a2a66 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #13224a 0%, transparent 50%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: var(--lh-body);
  font-size: var(--text-base);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible {
  outline: 2px solid rgba(91, 140, 255, 0.7);
  outline-offset: 2px;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--s-2) var(--s-4);
  min-height: calc(var(--h0) * var(--phi));
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 16, 32, 0.82);
}
.brand {
  display: flex;
  gap: var(--s-2);
  align-items: center;
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand-mark {
  width: calc(var(--h0) * var(--phi-inv));
  height: calc(var(--h0) * var(--phi-inv));
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: var(--text-sm);
  box-shadow: 0 4px 14px rgba(26, 79, 219, 0.35);
}
nav { display: flex; gap: var(--s-2); align-items: center; flex-wrap: wrap; }
.who {
  color: var(--muted);
  font-size: var(--text-sm);
  max-width: 10rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

main {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: var(--s-5) var(--s-4) var(--s-6);
}
.app-main { max-width: calc(var(--wrap) * var(--phi-inv) * 1.15); }

.hero { padding: var(--s-5) 0 var(--s-3); }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: var(--text-xs);
  color: var(--accent2);
  font-weight: 600;
  margin: 0 0 var(--s-1);
}
h1 {
  font-family: var(--display);
  font-size: var(--text-2xl);
  line-height: var(--lh-tight);
  margin: var(--s-1) 0 var(--s-3);
  letter-spacing: -0.025em;
}
h2 {
  font-family: var(--display);
  font-size: var(--text-lg);
  line-height: var(--lh-snug);
  margin: 0 0 var(--s-2);
}
h3 {
  margin: 0 0 var(--s-1);
  font-size: var(--text-md);
  line-height: var(--lh-snug);
}
.lede {
  color: var(--muted);
  font-size: var(--text-md);
  max-width: var(--measure);
  margin: 0;
  line-height: var(--lh-body);
}
.disclaimer {
  margin: var(--s-3) 0 0;
  max-width: var(--measure);
  padding: var(--s-2) var(--s-3);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.22);
  color: var(--muted);
  font-size: var(--text-sm);
  line-height: var(--lh-snug);
}
.disclaimer strong { color: var(--text); font-weight: 600; }
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin: var(--s-4) 0 var(--s-3);
}
.fine { color: var(--muted); font-size: var(--text-sm); }
.card-kicker {
  margin: 0 0 var(--s-1);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent2);
}

.pool-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  font-size: 0.88rem;
  color: var(--muted);
  background: rgba(26, 79, 219, 0.12);
  border: 1px solid rgba(91, 140, 255, 0.28);
}
.pool-pill.is-open {
  color: #9af0c4;
  background: rgba(62, 207, 142, 0.1);
  border-color: rgba(62, 207, 142, 0.35);
}
.pool-pill.is-locked {
  color: #f5d78e;
  background: rgba(240, 180, 41, 0.1);
  border-color: rgba(240, 180, 41, 0.35);
}
.pool-pill.is-empty {
  color: #f5a8ad;
  background: rgba(240, 113, 120, 0.1);
  border-color: rgba(240, 113, 120, 0.3);
}

.signal-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.5rem 0 1.75rem;
}
.signal-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}
.signal-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--accent2);
  box-shadow: 0 0 8px rgba(91, 140, 255, 0.7);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(calc(var(--h0) * 8), 1fr));
  gap: var(--s-3);
  margin: var(--s-4) 0 var(--s-5);
}
.feature-card { transition: transform 0.2s ease, border-color 0.2s; }
.feature-card:hover {
  transform: translateY(-2px);
  border-color: rgba(91, 140, 255, 0.35);
}

/* φ tool split when a 2-col layout is used */
.grid-phi {
  display: grid;
  gap: var(--s-4);
  grid-template-columns: 1fr;
}
@media (min-width: 840px) {
  .grid-phi {
    grid-template-columns: var(--grid-major) var(--grid-minor);
    align-items: start;
  }
}

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 40%), var(--card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: var(--s-4) var(--s-4);
  box-shadow: var(--shadow);
}
.card.wide { margin: var(--s-4) 0; }
.card.muted { color: var(--muted); box-shadow: none; }
.card.muted h2 { color: var(--text); }
.how-card .steps-rich li { margin: var(--s-2) 0; }
.optional-callout {
  border-color: rgba(240, 180, 41, 0.28);
  background: linear-gradient(180deg, rgba(240, 180, 41, 0.08), transparent 50%), var(--card);
}
.optional-callout p { color: var(--muted); margin: 0 0 var(--s-2); }
.optional-callout p:last-child { margin-bottom: 0; }
.cta-band {
  text-align: center;
  padding: var(--s-5) var(--s-3);
  margin: var(--s-5) 0 var(--s-3);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(91, 140, 255, 0.25);
  background: linear-gradient(160deg, rgba(26, 79, 219, 0.18), rgba(11, 16, 32, 0.4));
}
.cta-band .lede { margin: 0 auto var(--s-4); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-1);
  border: 0;
  border-radius: var(--radius-pill);
  padding: var(--s-2) var(--s-3);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: filter 0.15s, transform 0.15s, background 0.15s, border-color 0.15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #3d6fff);
  color: white;
  box-shadow: 0 8px 22px rgba(26, 79, 219, 0.3);
}
.btn-primary:hover { filter: brightness(1.08); text-decoration: none; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.18);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.04);
  text-decoration: none;
}
.btn-small { padding: var(--s-1) var(--s-2); font-size: var(--text-sm); }
.btn-lg { padding: var(--s-2) var(--s-4); font-size: var(--text-md); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.steps { margin: 0; padding-left: 1.2rem; color: var(--muted); }
.steps li { margin: 0.4rem 0; }

.pool-banner {
  background: rgba(26, 79, 219, 0.15);
  border: 1px solid rgba(91, 140, 255, 0.35);
  border-radius: 12px;
  padding: 0.7rem 1rem;
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 0.85rem;
  transition: background 0.25s, border-color 0.25s, color 0.25s;
}
.pool-banner.is-open {
  background: rgba(62, 207, 142, 0.1);
  border-color: rgba(62, 207, 142, 0.35);
  color: #c9f5df;
}
.pool-banner.is-locked {
  background: rgba(240, 180, 41, 0.1);
  border-color: rgba(240, 180, 41, 0.35);
  color: #f5e0a8;
}
.pool-banner.is-empty {
  background: rgba(240, 113, 120, 0.1);
  border-color: rgba(240, 113, 120, 0.3);
  color: #f5c0c4;
}

.session-banner {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 0.55rem 1rem;
  color: var(--muted);
  font-size: 0.85rem;
  margin: -0.35rem 0 0.85rem;
}
.session-banner.is-urgent {
  background: rgba(240, 180, 41, 0.1);
  border-color: rgba(240, 180, 41, 0.35);
  color: #f5e0a8;
}

.connect-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}
.connect-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 1rem 1.1rem;
  background: rgba(0, 0, 0, 0.18);
}
.connect-card-byo {
  border-color: rgba(62, 207, 142, 0.35);
  background: linear-gradient(180deg, rgba(62, 207, 142, 0.08), transparent 50%), rgba(0, 0, 0, 0.18);
}
.connect-title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}
.field-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  margin: 0.35rem 0 0.25rem;
}
.callback-code {
  display: block;
  font-size: 0.72rem;
  word-break: break-all;
  padding: 0.45rem 0.55rem;
  margin: 0.35rem 0 0.65rem;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--accent2);
}
.billing-banner {
  font-size: 0.88rem;
  padding: 0.55rem 0.75rem;
  border-radius: 10px;
  margin: 0 0 1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.billing-banner.is-byo {
  background: rgba(62, 207, 142, 0.1);
  border-color: rgba(62, 207, 142, 0.35);
  color: #c9f5df;
}
.billing-banner.is-host {
  background: rgba(26, 79, 219, 0.12);
  border-color: rgba(91, 140, 255, 0.3);
  color: var(--muted);
}

/* Flow progress */
.flow-progress {
  margin: 0 0 1rem;
}
.flow-steps {
  list-style: none;
  display: flex;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  overflow-x: auto;
}
.flow-step {
  flex: 1;
  min-width: 3.4rem;
  text-align: center;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--muted);
  opacity: 0.45;
  position: relative;
  padding: 0.35rem 0.15rem 0.5rem;
  border-bottom: 2px solid rgba(255, 255, 255, 0.08);
  transition: opacity 0.25s, color 0.25s, border-color 0.25s;
}
.flow-step.is-done {
  opacity: 0.75;
  border-bottom-color: rgba(62, 207, 142, 0.45);
  color: #9af0c4;
}
.flow-step.is-on {
  opacity: 1;
  color: var(--text);
  border-bottom-color: var(--accent2);
}

.stage .host {
  font-family: var(--display);
  font-size: var(--text-lg);
  line-height: var(--lh-snug);
  margin-bottom: var(--s-3);
  min-height: calc(var(--h0) * var(--phi));
}
.stage {
  animation: stage-in 0.35s ease;
}
@keyframes stage-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: .75rem 0 1rem;
}
.chip {
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(0,0,0,.2);
  color: var(--text);
  border-radius: 999px;
  padding: .4rem .8rem;
  font: inherit;
  font-size: .9rem;
  cursor: pointer;
}
.chip:hover, .chip.active {
  border-color: var(--accent2);
  background: rgba(26, 79, 219, .25);
}
.field {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.25);
  color: var(--text);
  font: inherit;
  padding: .75rem .9rem;
  margin-bottom: .75rem;
}
.field:focus {
  outline: 2px solid rgba(91, 140, 255, .45);
  border-color: transparent;
}
.hint { color: var(--muted); font-size: .85rem; margin: 0 0 .75rem; }
.row { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1rem; }
.hidden { display: none !important; }

.list-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 1rem 1.05rem;
  margin: 0.85rem 0;
  background: rgba(0, 0, 0, 0.18);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.list-card:hover {
  border-color: rgba(91, 140, 255, 0.28);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}
.list-card h3 {
  margin: 0 0 0.25rem;
  outline: none;
  border-radius: 4px;
}
.list-card h3:focus,
.list-card .desc:focus {
  outline: 2px solid rgba(91, 140, 255, 0.45);
  outline-offset: 2px;
}
.list-card .desc {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 0.6rem;
  outline: none;
}
.list-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 0.55rem;
}
.list-meta span {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  padding: 0.15rem 0.5rem;
}
.member {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.9rem;
  padding: 0.32rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.member .reason {
  color: var(--muted);
  font-size: 0.82rem;
  text-align: right;
  max-width: 60%;
}
.members.is-collapsed .member:nth-child(n + 6) { display: none; }
.members-toggle {
  margin-top: 0.45rem;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent2);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.taste { color: var(--muted); line-height: 1.5; }

/* Scan progress */
.scan-box {
  margin-top: 0.35rem;
}
.scan-bar {
  height: 4px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
  margin: 0.85rem 0 1rem;
}
.scan-bar > i {
  display: block;
  height: 100%;
  width: 35%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent2), var(--good));
  animation: scan-slide 1.4s ease-in-out infinite;
}
@keyframes scan-slide {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(320%); }
}
.scan-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.scan-steps li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.9rem;
  color: var(--muted);
  opacity: 0.45;
  transition: opacity 0.3s, color 0.3s;
}
.scan-steps li.is-on {
  opacity: 1;
  color: var(--text);
}
.scan-steps li.is-done {
  opacity: 0.85;
  color: #9af0c4;
}
.scan-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  flex-shrink: 0;
}
.scan-steps li.is-on .scan-dot {
  background: var(--accent2);
  box-shadow: 0 0 10px rgba(91, 140, 255, 0.7);
  animation: pulse-dot 1s ease infinite;
}
.scan-steps li.is-done .scan-dot {
  background: var(--good);
  box-shadow: none;
  animation: none;
}
@keyframes pulse-dot {
  50% { transform: scale(1.25); opacity: 0.75; }
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent2);
  cursor: pointer;
}

@media (max-width: 640px) {
  .site-header { padding: 0.75rem 1rem; }
  nav .btn-small:not(.btn-primary) { display: none; }
  .app-main { padding-left: 0; padding-right: 0; }
  main { padding: 1.25rem 1rem 3rem; }
}

.pro-steps {
  margin: 0.75rem 0 1.25rem;
  padding-left: 1.25rem;
  color: var(--text);
  line-height: 1.7;
}
.pro-steps li { margin: 0.25rem 0; }
.deck-name {
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent2);
  margin: 0 0 0.5rem;
}
.column-label {
  margin: 0 0 0.2rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}
.columns-heading {
  margin: 1rem 0 0.35rem;
  font-size: 1rem;
  font-weight: 600;
}

/* ── Pro walkthrough demo ── */
.pro-walk {
  margin: 1rem 0 1.5rem;
  padding: 0.85rem 0.9rem 0.75rem;
  border-radius: 16px;
  border: 1px solid rgba(91, 140, 255, 0.2);
  background: linear-gradient(165deg, rgba(22, 31, 61, 0.9), rgba(11, 16, 32, 0.95));
}
.pro-walk-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.55rem;
}
.pro-walk-kicker {
  margin: 0 0 0.15rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent2);
}
.pro-walk-caption {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  margin: 0;
  min-height: 1.45em;
  line-height: 1.35;
  transition: opacity 0.2s;
}
.pro-walk-caption.is-swap { opacity: 0.35; }
.pro-walk-controls {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-shrink: 0;
}
.pro-walk-counter {
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  background: rgba(0, 0, 0, 0.25);
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
}
.pro-walk-progress {
  height: 3px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
  margin-bottom: 0.55rem;
}
.pro-walk-progress-bar {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width 0.35s ease;
}
.pro-walk-dots {
  list-style: none;
  display: flex;
  gap: 0.35rem;
  margin: 0 0 0.65rem;
  padding: 0;
  flex-wrap: wrap;
}
.pro-walk-dots li {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  transition: transform 0.2s, background 0.2s;
}
.pro-walk-dots li.is-on {
  background: var(--accent2);
  transform: scale(1.25);
}
.pro-walk-dots li.is-done { background: rgba(62, 207, 142, 0.55); }
.pro-walk-hint {
  margin: 0.55rem 0 0;
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
}
.pro-walk-frame {
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  background: #070b14;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.pro-walk.is-paused .pro-walk-frame {
  outline: 1px dashed rgba(91, 140, 255, 0.35);
  outline-offset: -1px;
}

.pro-mock-chrome {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.7rem;
  background: #121826;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  font-size: 0.78rem;
  color: var(--muted);
}
.pro-mock-dots::before {
  content: "";
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #ff5f57;
  box-shadow: 0.7rem 0 0 #febc2e, 1.4rem 0 0 #28c840;
  margin-right: 1.75rem;
  vertical-align: middle;
}
.pro-mock-url {
  flex: 1;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 7px;
  padding: 0.22rem 0.55rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.7rem;
}
.pro-mock-lock { font-size: 0.65rem; opacity: 0.7; margin-right: 0.15rem; }
.pro-mock-badge {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
  background: rgba(26, 79, 219, 0.45);
  border-radius: 5px;
  padding: 0.18rem 0.4rem;
}
.pro-mock-body {
  position: relative;
  display: flex;
  height: 280px;
}
.pro-mock-rail {
  width: 8rem;
  flex-shrink: 0;
  background: #0c1220;
  border-right: 1px solid rgba(255, 255, 255, 0.07);
  padding: 0.55rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.pro-mock-rail-label {
  margin: 0 0 0.15rem;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(154, 166, 200, 0.65);
}
.pro-mock-decks {
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
  flex: 1;
}
.pro-mock-deck-item {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.7rem;
  padding: 0.4rem 0.45rem;
  border-radius: 7px;
  color: var(--muted);
  opacity: 0.5;
  transition: opacity 0.3s, background 0.3s, color 0.3s, box-shadow 0.3s, border-color 0.3s;
  border: 1px solid transparent;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pro-mock-deck-item.is-home { opacity: 0.4; }
.pro-mock-deck-item.is-new {
  border-style: dashed;
  border-color: rgba(91, 140, 255, 0.35);
  color: var(--accent2);
  opacity: 0.35;
}
.pro-mock-deck-item.is-new.is-hot {
  opacity: 1;
  border-color: var(--accent2);
  box-shadow: 0 0 0 2px rgba(91, 140, 255, 0.35);
  background: rgba(91, 140, 255, 0.1);
}
.pro-mock-deck-item.is-active {
  display: none;
  background: rgba(91, 140, 255, 0.2);
  color: var(--text);
  opacity: 1;
  font-weight: 600;
  border-color: rgba(91, 140, 255, 0.25);
}
.pro-mock-deck-item.is-active.is-shown { display: flex; }
.pro-mock-deck-dot {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--good);
  flex-shrink: 0;
  box-shadow: 0 0 6px rgba(62, 207, 142, 0.7);
}
.pro-mock-plus {
  font-weight: 700;
  opacity: 0.9;
}
.pro-mock-add {
  font: inherit;
  font-size: 0.7rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  padding: 0.45rem 0.4rem;
  background: linear-gradient(180deg, #2a5ef0, #1a4fdb);
  color: #fff;
  cursor: default;
  opacity: 0.35;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  transition: opacity 0.3s, box-shadow 0.3s, transform 0.2s;
}
.pro-mock-add.is-hot {
  opacity: 1;
  box-shadow: 0 0 0 2px rgba(91, 140, 255, 0.5), 0 6px 16px rgba(26, 79, 219, 0.35);
}

.pro-mock-main {
  flex: 1;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(500px 200px at 80% -20%, rgba(26, 79, 219, 0.18), transparent 55%),
    linear-gradient(165deg, #10182c 0%, #0b1020 100%);
  display: flex;
  flex-direction: column;
}
.pro-mock-deckbar {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  padding: 0.45rem 0.65rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  min-height: 2.4rem;
}
.pro-mock-deckbar-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pro-mock-deckbar-sub {
  font-size: 0.65rem;
  color: var(--muted);
}
.pro-mock-empty {
  position: absolute;
  inset: 2.5rem 0 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  color: var(--muted);
  font-size: 0.85rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s;
  text-align: center;
  padding: 1rem;
  z-index: 1;
}
.pro-mock-empty.is-on { opacity: 1; }
.pro-mock-empty-icon {
  font-size: 1.4rem;
  opacity: 0.45;
  margin-bottom: 0.2rem;
}
.pro-mock-empty-hint {
  font-size: 0.72rem;
  opacity: 0.75;
  max-width: 12rem;
}
.pro-mock-cols {
  display: flex;
  gap: 0.45rem;
  flex: 1;
  padding: 0.5rem;
  align-items: stretch;
  position: relative;
  z-index: 1;
}
.pro-mock-col {
  flex: 1;
  min-width: 0;
  background: rgba(8, 12, 22, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 0.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
  opacity: 0;
  transform: translateY(12px) scale(0.96);
  transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.3s, border-color 0.3s;
}
.pro-mock-col.is-on {
  opacity: 1;
  transform: none;
}
.pro-mock-col.is-pop {
  border-color: rgba(62, 207, 142, 0.55);
  box-shadow: 0 0 0 1px rgba(62, 207, 142, 0.25), 0 8px 20px rgba(0, 0, 0, 0.25);
}
.pro-mock-col-head {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.pro-mock-col-badge {
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #9af0c4;
  background: rgba(62, 207, 142, 0.15);
  border-radius: 4px;
  padding: 0.1rem 0.28rem;
  flex-shrink: 0;
}
.pro-mock-col-title {
  font-size: 0.62rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--accent2);
}
.pro-mock-col-card {
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.04);
  padding: 0.28rem 0.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
}
.pro-mock-col-line {
  height: 0.28rem;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.12);
}
.pro-mock-col-line.short { width: 55%; }
.pro-mock-col-line.med { width: 78%; }

.pro-mock-picker {
  position: absolute;
  left: 50%;
  top: 54%;
  transform: translate(-50%, -50%) scale(0.9);
  width: min(13rem, 72%);
  background: #161f3d;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 0.6rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s, transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 4;
}
.pro-mock-picker.is-on {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.pro-mock-picker-title {
  margin: 0 0 0.4rem;
  font-size: 0.74rem;
  font-weight: 700;
}
.pro-mock-picker-opt {
  font-size: 0.74rem;
  padding: 0.38rem 0.45rem;
  border-radius: 7px;
  color: var(--muted);
  margin-bottom: 0.12rem;
  transition: background 0.2s, color 0.2s, transform 0.15s;
}
.pro-mock-picker-opt.is-hot {
  background: rgba(91, 140, 255, 0.25);
  color: var(--text);
  font-weight: 600;
  transform: translateX(2px);
}
.pro-mock-list-menu {
  margin-top: 0.35rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 0.4rem;
  display: none;
  flex-direction: column;
  gap: 0.18rem;
  max-height: 6.5rem;
  overflow: hidden;
}
.pro-mock-list-menu.is-on { display: flex; }
.pro-mock-list-row {
  font-size: 0.7rem;
  padding: 0.35rem 0.4rem;
  border-radius: 6px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background 0.2s, color 0.2s, transform 0.15s;
  border: 1px solid transparent;
}
.pro-mock-list-row.is-hot {
  background: rgba(62, 207, 142, 0.18);
  border-color: rgba(62, 207, 142, 0.35);
  color: #9af0c4;
  transform: translateX(2px);
}
.pro-mock-list-row.is-done {
  opacity: 0.45;
  text-decoration: line-through;
}

.pro-mock-typebox {
  position: absolute;
  left: 50%;
  top: 48%;
  transform: translate(-50%, -50%) scale(0.94);
  width: min(14rem, 78%);
  background: #161f3d;
  border: 1px solid rgba(91, 140, 255, 0.35);
  border-radius: 12px;
  padding: 0.65rem 0.75rem;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.45);
  opacity: 0;
  pointer-events: none;
  z-index: 4;
  transition: opacity 0.28s, transform 0.28s;
}
.pro-mock-typebox.is-on {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.pro-mock-typebox-label {
  display: block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.pro-mock-typebox-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  min-height: 1.2em;
}
.pro-mock-caret {
  display: inline-block;
  width: 1.5px;
  height: 0.95em;
  margin-left: 1px;
  background: var(--accent2);
  vertical-align: text-bottom;
  animation: pro-caret 0.85s steps(1) infinite;
}
@keyframes pro-caret {
  50% { opacity: 0; }
}

.pro-cursor {
  position: absolute;
  width: 16px;
  height: 16px;
  margin-left: -2px;
  margin-top: -2px;
  z-index: 8;
  pointer-events: none;
  opacity: 0;
  transition: left 0.5s cubic-bezier(0.22, 1, 0.36, 1),
              top 0.5s cubic-bezier(0.22, 1, 0.36, 1),
              opacity 0.2s;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.45));
}
.pro-cursor::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  border-left: 11px solid #fff;
  border-right: 7px solid transparent;
  border-bottom: 9px solid transparent;
  border-top: 14px solid transparent;
  transform: rotate(-12deg);
}
.pro-cursor-ripple {
  position: absolute;
  left: 0;
  top: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(91, 140, 255, 0.85);
  opacity: 0;
  transform: scale(0.3);
}
.pro-cursor.is-click .pro-cursor-ripple {
  animation: pro-ripple 0.45s ease-out;
}
@keyframes pro-ripple {
  0% { opacity: 0.9; transform: scale(0.3); }
  100% { opacity: 0; transform: scale(1.6); }
}

/* Sync checklist with walkthrough */
.pro-steps li {
  transition: color 0.25s, background 0.25s, border-color 0.25s;
  border-radius: 8px;
  padding: 0.2rem 0.4rem 0.2rem 0.15rem;
  border-left: 2px solid transparent;
}
.pro-steps li.is-walk-on {
  color: var(--text);
  background: rgba(91, 140, 255, 0.12);
  border-left-color: var(--accent2);
}
.pro-steps li.is-walk-done {
  color: var(--muted);
}

@media (max-width: 520px) {
  .pro-mock-body { height: 260px; }
  .pro-mock-rail { width: 6.4rem; }
  .pro-walk-head { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .pro-cursor { display: none !important; }
  .pro-mock-col,
  .pro-mock-picker,
  .pro-mock-typebox,
  .pro-mock-deck-item,
  .pro-mock-add,
  .pro-walk-caption { transition: none !important; }
  .pro-mock-caret { animation: none; opacity: 1; }
}

#created {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}
#created li {
  padding: 0.55rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.95rem;
}
#created li:first-child { border-top: none; }

.site-footer {
  text-align: center;
  color: var(--muted);
  font-size: .85rem;
  padding: 2rem 1rem 3rem;
}
.waiting {
  color: var(--accent2);
  font-size: .95rem;
  margin-top: .5rem;
}

/* Signal weight sliders */
.sliders {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  margin: var(--s-1) 0 var(--s-3);
}
.slider-row {
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: var(--s-2) var(--s-3);
}
.slider-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--s-1);
}
.slider-head label { font-weight: 600; }
.slider-val {
  font-variant-numeric: tabular-nums;
  color: var(--accent2);
  font-weight: 600;
  min-width: 2rem;
  text-align: right;
  font-size: var(--text-sm);
}
.slider-hint {
  margin: var(--s-1) 0 0;
  font-size: var(--text-xs);
  color: var(--muted);
  line-height: var(--lh-snug);
}
.slider-row input[type="range"] {
  width: 100%;
  accent-color: var(--accent2);
  height: var(--s-3);
  cursor: pointer;
}
.presets { margin-bottom: var(--s-1); }