/* ==========================================================================
   Trading Bots Pro — site.css
   One stylesheet for every page. Tokens match the Command Center brand card:
   navy surfaces, green→blue gradient, Inter + JetBrains Mono, gradient accent bar.
   ========================================================================== */

:root {
  /* surfaces */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #273449;
  --surface-card: rgba(30, 41, 59, 0.6);
  --surface-inset: rgba(15, 23, 42, 0.55);

  /* text (all pass WCAG AA on --bg-primary) */
  --text-primary: #e2e8f0;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;

  /* brand */
  --brand-green: #10b981;
  --brand-green-2: #34d399;
  --brand-blue: #3b82f6;
  --brand-blue-2: #60a5fa;
  --gold: #fbbf24;
  --danger: #ef4444;
  --danger-soft: #f87171;

  /* lines */
  --border: rgba(148, 163, 184, 0.15);
  --border-soft: rgba(148, 163, 184, 0.10);
  --border-brand: rgba(16, 185, 129, 0.30);
  --border-danger: rgba(239, 68, 68, 0.30);

  /* gradients + shadows */
  --grad-brand: linear-gradient(135deg, #10b981 0%, #3b82f6 100%);
  --grad-bg: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --grad-accent-bar: linear-gradient(90deg, #10b981 0%, #3b82f6 50%, #10b981 100%);
  --grad-danger-bar: linear-gradient(90deg, #ef4444 0%, #f87171 50%, #ef4444 100%);
  --shadow-cta: 0 10px 30px rgba(16, 185, 129, 0.30);
  --shadow-cta-sm: 0 6px 18px rgba(16, 185, 129, 0.25);
  --shadow-card: 0 20px 40px rgba(16, 185, 129, 0.10);

  /* type */
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Consolas, monospace;

  /* layout */
  --wrap: 1180px;
  --gutter: 24px;
  --radius: 14px;
  --radius-sm: 10px;
  --header-h: 68px;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image: var(--grad-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--brand-blue-2); text-decoration: none; }
a:hover { color: var(--brand-green-2); }
p a, li a, td a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(96, 165, 250, 0.4); }
strong { color: var(--text-primary); font-weight: 600; }
:focus-visible { outline: 2px solid var(--brand-green); outline-offset: 3px; border-radius: 4px; }
::selection { background: rgba(16, 185, 129, 0.35); color: #fff; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.wrap-narrow { max-width: 860px; margin: 0 auto; padding: 0 var(--gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 12px; top: -48px; z-index: 2000; background: var(--brand-green); color: #04110c; padding: 8px 14px; border-radius: 8px; font-weight: 600; }
.skip-link:focus { top: 12px; color: #04110c; }

/* ---------- type ---------- */
h1, h2, h3, h4 { line-height: 1.2; letter-spacing: -0.02em; color: var(--text-primary); }
h1 { font-size: clamp(2.1rem, 5.2vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.35rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 650; letter-spacing: -0.01em; }
h4 { font-size: 1rem; font-weight: 600; }
.grad-text {
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: var(--brand-green);
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--brand-green-2);
}
.eyebrow::before { content: ''; width: 18px; height: 2px; background: var(--grad-brand); border-radius: 2px; }
.lead { font-size: clamp(1.05rem, 1.6vw, 1.2rem); color: var(--text-secondary); line-height: 1.7; }
.muted { color: var(--text-muted); }
.mono { font-family: var(--font-mono); }
.small { font-size: 0.875rem; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(15, 23, 42, 0.82);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
  transition: transform 0.3s ease;
}
.site-header.is-hidden { transform: translateY(-100%); }
.site-header .wrap { height: var(--header-h); display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img { width: 40px; height: 40px; border-radius: 9px; }
.brand-name {
  font-family: var(--font-mono); font-weight: 700; font-size: 1.05rem; letter-spacing: -0.03em;
  background: var(--grad-brand); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; white-space: nowrap;
}
.site-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.site-nav a {
  position: relative; color: var(--text-secondary); font-size: 0.93rem; font-weight: 500;
  padding: 8px 12px; border-radius: 8px; transition: color 0.15s, background 0.15s;
}
.site-nav a:hover { color: var(--text-primary); background: rgba(148, 163, 184, 0.08); }
.site-nav a[aria-current="page"] { color: var(--text-primary); }
.site-nav a[aria-current="page"]::after {
  content: ''; position: absolute; left: 12px; right: 12px; bottom: 2px; height: 2px;
  border-radius: 2px; background: var(--grad-brand);
}
.header-cta { margin-left: 8px; }
.menu-btn {
  display: none; margin-left: auto; width: 44px; height: 44px; border-radius: 10px;
  background: rgba(148, 163, 184, 0.08); border: 1px solid var(--border); cursor: pointer;
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.menu-btn span { width: 20px; height: 2px; background: var(--text-secondary); border-radius: 2px; transition: transform 0.25s, opacity 0.2s; }
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none; position: fixed; inset: var(--header-h) 0 0 0; z-index: 999;
  background: rgba(15, 23, 42, 0.98); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
  padding: 24px var(--gutter) 40px; overflow-y: auto;
}
.mobile-nav.is-open { display: block; }
.mobile-nav a:not(.btn) {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 4px; font-size: 1.1rem; font-weight: 600; color: var(--text-primary);
  border-bottom: 1px solid var(--border-soft);
}
.mobile-nav a:not(.btn)::after { content: '→'; font-family: var(--font-mono); color: var(--text-muted); }
.mobile-nav .btn { width: 100%; margin-top: 24px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 600 0.95rem/1 var(--font-sans); letter-spacing: -0.005em;
  padding: 13px 22px; border-radius: var(--radius-sm); border: 1px solid transparent;
  cursor: pointer; white-space: nowrap; text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.2s ease, filter 0.2s ease, background 0.2s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--grad-brand); color: #fff; box-shadow: var(--shadow-cta-sm); }
.btn-primary:hover { color: #fff; box-shadow: var(--shadow-cta); filter: brightness(1.06); }
.btn-ghost {
  color: var(--text-primary);
  background: linear-gradient(var(--bg-primary), var(--bg-primary)) padding-box, var(--grad-brand) border-box;
}
.btn-ghost:hover { color: #fff; background: linear-gradient(#131d33, #131d33) padding-box, var(--grad-brand) border-box; }
.btn-sm { padding: 9px 16px; font-size: 0.875rem; }
.btn-lg { padding: 16px 30px; font-size: 1.05rem; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.6; cursor: wait; transform: none; }
.btn .arrow { font-family: var(--font-mono); transition: transform 0.2s; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- sections ---------- */
.section { padding: clamp(48px, 6.5vw, 80px) 0; }
.section-tight { padding: clamp(40px, 5vw, 64px) 0; }
.section-head { max-width: 720px; margin: 0 auto 44px; text-align: center; }
.section-head .eyebrow { margin-bottom: 14px; }
.section-head h2 { margin-bottom: 14px; }
.section-head p { color: var(--text-secondary); }
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent); border: 0; }

/* ---------- hero ---------- */
.hero { position: relative; padding: clamp(64px, 10vw, 120px) 0 clamp(48px, 7vw, 88px); overflow: hidden; }
.hero::before {                               /* grid lines, fading out */
  content: ''; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 75%);
}
.hero::after {                                /* brand glow */
  content: ''; position: absolute; z-index: -1; pointer-events: none;
  width: 720px; height: 720px; left: 50%; top: -360px; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(16, 185, 129, 0.18) 0%, rgba(59, 130, 246, 0.10) 40%, transparent 70%);
}
.hero-inner { max-width: 820px; margin: 0 auto; text-align: center; }
.hero .eyebrow { margin-bottom: 20px; }
.hero h1 { margin-bottom: 22px; }
.hero .lead { max-width: 660px; margin: 0 auto 32px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-note {
  display: inline-flex; gap: 10px; align-items: flex-start; text-align: left;
  margin-top: 28px; padding: 12px 16px; max-width: 640px;
  background: rgba(239, 68, 68, 0.07); border: 1px solid var(--border-danger); border-radius: var(--radius-sm);
  color: var(--text-secondary); font-size: 0.875rem; line-height: 1.55;
}
.hero-note .ico { color: var(--danger-soft); flex-shrink: 0; margin-top: 1px; }
.page-hero { padding: clamp(48px, 7vw, 84px) 0 clamp(28px, 4vw, 44px); position: relative; overflow: hidden; }
.page-hero::after {
  content: ''; position: absolute; z-index: -1; pointer-events: none; width: 560px; height: 560px;
  left: 50%; top: -320px; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(16, 185, 129, 0.14) 0%, rgba(59, 130, 246, 0.07) 45%, transparent 70%);
}
.page-hero .eyebrow { margin-bottom: 14px; }
.page-hero h1 { font-size: clamp(2rem, 4.4vw, 3rem); margin-bottom: 14px; }
.page-hero.center { text-align: center; }
.page-hero.center .lead { max-width: 680px; margin: 0 auto; }

/* session strip — the trading day as a timeline, under the hero */
.session-strip {
  display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 56px;
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  background: var(--surface-inset);
}

.session-strip > div { padding: 16px 18px; border-right: 1px solid var(--border-soft); text-align: left; }
.session-strip > div:last-child { border-right: 0; }
.session-strip .t { font-family: var(--font-mono); font-size: 0.75rem; color: var(--brand-green-2); letter-spacing: 0.04em; }
.session-strip .l { font-size: 0.92rem; font-weight: 600; margin-top: 4px; }

/* ---------- cards ---------- */
.card {
  position: relative; overflow: hidden;
  background: var(--surface-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.card::before {                               /* brand accent bar (brand card signature) */
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--grad-accent-bar);
}
.card.plain::before { display: none; }
.card.lift:hover { transform: translateY(-4px); border-color: var(--border-brand); box-shadow: var(--shadow-card); }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--text-secondary); }
.card p + p { margin-top: 12px; }
.card.danger { background: rgba(239, 68, 68, 0.06); border-color: var(--border-danger); }
.card.danger::before { background: var(--grad-danger-bar); }
.card.danger h3, .card.danger h4 { color: var(--danger-soft); }
.card.featured { border-color: var(--border-brand); box-shadow: var(--shadow-card); }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.icon-tile {
  width: 44px; height: 44px; border-radius: 11px; margin-bottom: 18px;
  display: grid; place-items: center; color: var(--brand-green-2);
  background: rgba(16, 185, 129, 0.10); border: 1px solid var(--border-brand);
}
.icon-tile svg { width: 22px; height: 22px; }

/* badges */
.badge {
  display: inline-flex; align-items: center; gap: 7px;
  font: 600 0.72rem/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase;
  padding: 6px 10px; border-radius: 999px; border: 1px solid var(--border); color: var(--text-secondary);
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.badge.live { color: var(--brand-green-2); border-color: var(--border-brand); background: rgba(16, 185, 129, 0.08); }
.badge.live .dot { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6); animation: pulse 2s infinite; }
.badge.testing { color: var(--gold); border-color: rgba(251, 191, 36, 0.35); background: rgba(251, 191, 36, 0.07); }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55); } 70% { box-shadow: 0 0 0 7px rgba(52, 211, 153, 0); } 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); } }

/* check lists */
.checks { list-style: none; display: grid; gap: 10px; margin-top: 18px; }
.checks li { position: relative; padding-left: 28px; color: var(--text-secondary); line-height: 1.55; }
.checks li::before {
  content: ''; position: absolute; left: 0; top: 4px; width: 17px; height: 17px; border-radius: 5px;
  background: rgba(16, 185, 129, 0.12) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%2334d399' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3.5 8.5l3 3 6-7'/%3E%3C/svg%3E") center/12px no-repeat;
}
.checks.cross li::before {
  background: rgba(239, 68, 68, 0.12) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23f87171' stroke-width='2.2' stroke-linecap='round'%3E%3Cpath d='M4.5 4.5l7 7M11.5 4.5l-7 7'/%3E%3C/svg%3E") center/11px no-repeat;
}

/* ---------- strategies + stats ---------- */
.strategy-card { display: flex; flex-direction: column; gap: 0; }
.strategy-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 14px; }
.strategy-card .tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0 14px; }
.tag { font: 500 0.75rem/1 var(--font-mono); padding: 5px 8px; border-radius: 6px; color: var(--text-muted); background: rgba(148, 163, 184, 0.08); }
.stats { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border-soft); }
.stats-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.stats-head span { font: 600 0.75rem/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); }
.stat-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.stat {
  background: var(--surface-inset); border: 1px solid var(--border-soft); border-radius: var(--radius-sm);
  padding: 14px 14px 12px;
}
.stat-label { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--text-muted); }
.stat-value { font-family: var(--font-mono); font-weight: 700; font-size: 1.45rem; line-height: 1.25; margin: 6px 0 2px; color: var(--text-primary); }
.stat-value.positive { color: var(--brand-green-2); }
.stat-value.negative { color: var(--danger-soft); }
.stat-value.in-testing { color: var(--gold); font-size: 1rem; padding: 5px 0; font-family: var(--font-sans); }
.stat-suffix { font-size: 0.7em; opacity: 0.8; margin-left: 1px; }
.stat-detail { font-size: 0.78rem; color: var(--text-muted); }
.fineprint { font-size: 0.8rem; line-height: 1.55; color: var(--text-muted); margin-top: 14px; }

/* segmented toggle */
.segmented {
  display: inline-flex; padding: 4px; gap: 4px; border-radius: 12px;
  background: var(--surface-inset); border: 1px solid var(--border);
}
.segmented button {
  font: 600 0.88rem/1 var(--font-sans); color: var(--text-muted); background: transparent;
  border: 0; border-radius: 9px; padding: 10px 16px; cursor: pointer; transition: color 0.15s, background 0.15s;
}
.segmented button[aria-selected="true"] { color: #fff; background: var(--grad-brand); box-shadow: var(--shadow-cta-sm); }
.segmented button:not([aria-selected="true"]):hover { color: var(--text-primary); }

.scaled { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 24px; }
.scaled .card { text-align: center; padding: 24px 18px; }
.scaled .acct { font: 600 0.78rem/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); }
.scaled .amt { font: 700 clamp(1.6rem, 3vw, 2.1rem)/1.2 var(--font-mono); margin-top: 10px; color: var(--brand-green-2); }
.scaled .amt.negative { color: var(--danger-soft); }
.scaled .amt.in-testing { color: var(--gold); font: 600 1.1rem/1.6 var(--font-sans); }
.scaled [data-strategy][hidden] { display: none; }

/* ---------- steps + timeline ---------- */
.steps { counter-reset: step; }
.step-num {
  font: 700 0.85rem/1 var(--font-mono); color: var(--brand-green-2); letter-spacing: 0.04em;
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px;
}
.step-num::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--grad-brand); }

.timeline { position: relative; display: grid; gap: 16px; padding-left: 36px; }
.timeline::before { content: ''; position: absolute; left: 11px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--brand-green), var(--brand-blue)); opacity: 0.6; border-radius: 2px; }
.timeline .card { padding: 22px 24px; }
.timeline .card::after {
  content: ''; position: absolute; left: -32px; top: 26px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--bg-primary); border: 3px solid var(--brand-green);
}
.timeline .card { overflow: visible; }
.timeline .card::before { border-radius: var(--radius) var(--radius) 0 0; }
.timeline .time { font: 600 0.8rem/1 var(--font-mono); color: var(--brand-green-2); letter-spacing: 0.03em; margin-bottom: 8px; display: block; }

/* ---------- pricing ---------- */
.price-card { display: flex; flex-direction: column; }
.price-card .tier { font: 600 0.8rem/1 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); }
.price-card .price { font: 800 2.6rem/1 var(--font-sans); letter-spacing: -0.03em; margin: 16px 0 4px; }
.price-card .per { font-size: 0.95rem; font-weight: 500; color: var(--text-muted); letter-spacing: 0; }
.price-card .checks { margin-bottom: 26px; flex: 1; }
.price-card .ribbon { position: absolute; top: 18px; right: 18px; }
.carousel-dots { display: none; justify-content: center; gap: 8px; margin-top: 18px; }
.carousel-dots button { width: 8px; height: 8px; border-radius: 50%; border: 0; background: rgba(148, 163, 184, 0.35); cursor: pointer; padding: 0; transition: width 0.2s, background 0.2s; }
.carousel-dots button.active { width: 22px; border-radius: 4px; background: var(--grad-brand); }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative; overflow: hidden; text-align: center;
  border: 1px solid var(--border-brand); border-radius: 20px; padding: clamp(40px, 6vw, 64px) 24px;
  background: radial-gradient(ellipse at top, rgba(16, 185, 129, 0.14), transparent 60%), var(--surface-card);
}
.cta-band::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--grad-accent-bar); }
.cta-band h2 { margin-bottom: 12px; }
.cta-band p { color: var(--text-secondary); max-width: 560px; margin: 0 auto 28px; }

/* ---------- callouts ---------- */
.callout {
  display: flex; gap: 14px; padding: 18px 20px; border-radius: var(--radius-sm);
  background: rgba(239, 68, 68, 0.07); border: 1px solid var(--border-danger); color: var(--text-secondary);
  font-size: 0.93rem; line-height: 1.6;
}
.callout .ico { color: var(--danger-soft); flex-shrink: 0; margin-top: 2px; }
.callout.info { background: rgba(59, 130, 246, 0.07); border-color: rgba(59, 130, 246, 0.3); }
.callout.info .ico { color: var(--brand-blue-2); }
.callout strong { color: var(--text-primary); }
.callout.loud { font-family: var(--font-mono); font-size: 0.84rem; letter-spacing: 0.01em; color: var(--text-primary); }

/* ---------- legal documents ---------- */
.doc-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px; align-items: start; }
.toc { position: sticky; top: calc(var(--header-h) + 24px); max-height: calc(100vh - var(--header-h) - 48px); overflow-y: auto; }
.toc-title { font: 600 0.75rem/1 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 12px; }
.toc ol { list-style: none; display: grid; gap: 2px; border-left: 1px solid var(--border); }
.toc a { display: block; padding: 6px 0 6px 14px; margin-left: -1px; border-left: 2px solid transparent; font-size: 0.875rem; color: var(--text-muted); line-height: 1.4; }
.toc a:hover { color: var(--text-primary); }
.toc a.active { color: var(--brand-green-2); border-left-color: var(--brand-green); }
.doc .doc-meta { font: 500 0.82rem/1 var(--font-mono); color: var(--text-muted); margin-bottom: 28px; display: inline-flex; gap: 8px; align-items: center; padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; }
.doc section { padding: 30px 0; border-top: 1px solid var(--border-soft); }
.doc section:first-of-type { border-top: 0; padding-top: 8px; }
.doc h2 { font-size: 1.35rem; margin-bottom: 14px; display: flex; gap: 12px; align-items: baseline; }
.doc h2 .n { font: 600 0.9rem/1 var(--font-mono); color: var(--brand-green-2); }
.doc h3 { font-size: 1.02rem; color: var(--brand-blue-2); margin: 20px 0 8px; }
.doc p { color: var(--text-secondary); margin-bottom: 12px; }
.doc ul { margin: 10px 0 14px 0; padding-left: 20px; color: var(--text-secondary); }
.doc li { margin: 7px 0; padding-left: 4px; }
.doc li::marker { color: var(--brand-green); }
.doc .caps { font-size: 0.9rem; letter-spacing: 0.01em; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); margin: 12px 0; }
table { width: 100%; border-collapse: collapse; font-size: 0.93rem; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border-soft); }
th { font: 600 0.75rem/1.3 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); background: var(--surface-inset); }
td { color: var(--text-secondary); }
tr:last-child td { border-bottom: 0; }

/* ---------- forms ---------- */
.form-card { padding: clamp(24px, 4vw, 44px); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label, .fieldset-label { font-size: 0.88rem; font-weight: 600; color: var(--text-secondary); }
.req { color: var(--danger-soft); }
.opt { color: var(--text-muted); font-weight: 500; }
.input, .select, .textarea {
  width: 100%; font: 400 1rem/1.4 var(--font-sans); color: var(--text-primary);
  background: var(--surface-inset); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 13px 14px; transition: border-color 0.15s, box-shadow 0.15s; appearance: none;
}
.input::placeholder, .textarea::placeholder { color: #64748b; }
.input:hover, .select:hover, .textarea:hover { border-color: rgba(148, 163, 184, 0.3); }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--brand-green); box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15); }
.select {
  padding-right: 40px; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; background-size: 14px;
}
.select option { background: var(--bg-secondary); color: var(--text-primary); }
.textarea { min-height: 110px; resize: vertical; }
.field-hint { font-size: 0.84rem; color: var(--text-muted); }
.field-hint button { font: inherit; color: var(--brand-green-2); background: none; border: 0; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; padding: 0; }
.chips { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.chip {
  position: relative; display: flex; gap: 12px; align-items: flex-start; cursor: pointer;
  padding: 14px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface-inset);
  transition: border-color 0.15s, background 0.15s;
}
.chip:hover { border-color: rgba(148, 163, 184, 0.3); }
.chip:has(input:checked) { border-color: var(--brand-green); background: rgba(16, 185, 129, 0.07); }
.chip input, .consent input { width: 18px; height: 18px; margin-top: 2px; flex-shrink: 0; accent-color: var(--brand-green); cursor: pointer; }
.chip b { display: block; font-size: 0.93rem; color: var(--text-primary); font-weight: 600; }
.chip small { display: block; font-size: 0.82rem; color: var(--text-muted); margin-top: 2px; line-height: 1.45; }
.consent {
  display: flex; gap: 12px; align-items: flex-start; cursor: pointer; padding: 16px 18px;
  border-radius: var(--radius-sm); background: rgba(239, 68, 68, 0.06); border: 1px solid var(--border-danger);
  font-size: 0.86rem; line-height: 1.6; color: var(--text-secondary);
}
.hp { position: absolute !important; left: -10000px !important; width: 1px; height: 1px; overflow: hidden; }
.form-msg {
  margin-top: 16px; padding: 14px 16px; border-radius: var(--radius-sm); font-size: 0.93rem; line-height: 1.5;
  background: rgba(239, 68, 68, 0.09); border: 1px solid rgba(239, 68, 68, 0.4); color: var(--danger-soft);
}
.form-msg.info { background: rgba(59, 130, 246, 0.08); border-color: rgba(59, 130, 246, 0.35); color: var(--brand-blue-2); }
.success-panel { text-align: center; padding: 16px 0; }
.success-panel .tick {
  width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(16, 185, 129, 0.12); border: 1px solid var(--border-brand); color: var(--brand-green-2);
}
.success-panel h2 { margin-bottom: 10px; }
.success-panel p { color: var(--text-secondary); max-width: 520px; margin: 0 auto 10px; }

/* ---------- footer ---------- */
.site-footer { margin-top: clamp(40px, 6vw, 72px); border-top: 1px solid var(--border-soft); background: rgba(10, 16, 32, 0.55); }
.footer-top { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 40px; padding: 56px 0 36px; }
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; margin-top: 14px; max-width: 340px; }
.footer-col h4 { font: 600 0.75rem/1 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 16px; }
.footer-col a { display: block; color: var(--text-secondary); font-size: 0.92rem; padding: 5px 0; }
.footer-col a:hover { color: var(--brand-green-2); }
.socials { display: flex; gap: 10px; flex-wrap: wrap; }
.socials a {
  width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; padding: 0;
  background: rgba(148, 163, 184, 0.08); border: 1px solid var(--border-soft); transition: background 0.2s, transform 0.2s;
}
.socials a:hover { background: var(--grad-brand); transform: translateY(-2px); }
.socials svg { width: 18px; height: 18px; fill: var(--text-muted); }
.socials a:hover svg { fill: #fff; }
.footer-legal { display: grid; gap: 14px; padding-bottom: 28px; }
.footer-legal p { font-size: 0.8rem; line-height: 1.6; color: var(--text-muted); }
.footer-legal .risk { padding: 16px 18px; border-radius: var(--radius-sm); background: rgba(239, 68, 68, 0.05); border: 1px solid rgba(239, 68, 68, 0.18); }
.footer-legal .risk strong { color: var(--danger-soft); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding: 20px 0 28px; border-top: 1px solid var(--border-soft); font-size: 0.84rem; color: var(--text-muted); }
.footer-bottom nav { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--brand-green-2); }

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 1020px) {
  .site-nav, .header-cta { display: none; }
  .menu-btn { display: inline-flex; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .doc-layout { grid-template-columns: 1fr; }
  .toc { display: none; }
}
@media (max-width: 720px) {
  :root { --gutter: 16px; --header-h: 62px; }
  .brand img { width: 34px; height: 34px; }
  .grid-2, .grid-3, .grid-4, .scaled, .form-grid, .chips { grid-template-columns: 1fr; }
  .session-strip { grid-template-columns: repeat(2, 1fr); }
  .session-strip > div:nth-child(2) { border-right: 0; }
  .session-strip > div:nth-child(-n+2) { border-bottom: 1px solid var(--border-soft); }
  .card { padding: 22px; }
  .hero-actions .btn { flex: 1 1 100%; }
  .pricing-track {
    display: grid; grid-auto-flow: column; grid-auto-columns: 86%; grid-template-columns: none;
    overflow-x: auto; scroll-snap-type: x mandatory; gap: 14px; padding: 6px 7% 10px; margin: 0 calc(var(--gutter) * -1);
    scrollbar-width: none;
  }
  .pricing-track::-webkit-scrollbar { display: none; }
  .pricing-track > * { scroll-snap-align: center; }
  .carousel-dots { display: flex; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .timeline { padding-left: 28px; }
  .timeline .card::after { left: -24px; }
  .timeline::before { left: 7px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* fixes */
.toc a, .footer-col a, .footer-bottom a, .mobile-nav a, .socials a, .btn { text-decoration: none; }
.doc > .callout { margin-bottom: 26px; }
.field .chip { font-weight: 400; color: var(--text-secondary); }
.chip small { font-weight: 400; }