/* ============================================
   TB — TradeBrain shared layout + components
   Sept 2026 refresh — design pass v2.
   Fraunces display + Manrope body, navy #415c76 + cyan #2c98d9.
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;0,9..144,800;1,9..144,400;1,9..144,500&family=Manrope:wght@400;500;600;700;800&display=swap');

:root {
  --font-display: 'Fraunces', 'EB Garamond', Georgia, serif;
  --font-body: 'Manrope', system-ui, -apple-system, sans-serif;
  --color-ink: #0d1c30;
  --color-navy: #415c76;
  --color-navy-deep: #2f4860;
  --color-cyan: #2c98d9;
  --color-cyan-deep: #1c7fb8;
  --color-cyan-soft: #e8f6fd;
  --color-mist: #f4f9fc;
  --color-line: #d9e6f0;
  --color-line-strong: #bfd8e9;
  --color-muted: #57697c;
  --color-dark-1: #0b1729;
  --color-dark-2: #060d1a;
  --text-hero: clamp(2.5rem, 3.4vw + 1.35rem, 4.2rem);
  --text-h2: clamp(1.65rem, 1.4vw + 1.1rem, 2.45rem);
  --text-h3: clamp(1.15rem, 0.5vw + 0.95rem, 1.35rem);
  --text-lead: clamp(1.05rem, 0.3vw + 0.95rem, 1.2rem);
  --space-section: clamp(60px, 8vw, 104px);
  --space-section-sm: clamp(44px, 5vw, 72px);
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 1px 2px rgba(13,28,48,.04), 0 14px 30px -12px rgba(13,28,48,.16);
  --shadow-card-hover: 0 2px 6px rgba(13,28,48,.06), 0 26px 48px -14px rgba(13,28,48,.22);
}

body { font-family: var(--font-body); color: #262b33; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; color: var(--color-ink); }
h1 { font-size: var(--text-hero); font-weight: 700; line-height: 1.05; letter-spacing: -0.02em; }
h2 { font-size: var(--text-h2); line-height: 1.16; letter-spacing: -0.01em; }
h3 { font-size: var(--text-h3); line-height: 1.32; }
p { line-height: 1.7; }
.container { max-width: 1180px; }
section, .section { padding: var(--space-section) 0; }
section[id] { scroll-margin-top: 84px; }

/* ── Focus (accessibility floor) ── */
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ── Header ── */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: saturate(160%) blur(10px); -webkit-backdrop-filter: saturate(160%) blur(10px); border-bottom: 1px solid transparent; transition: box-shadow .3s, border-color .3s, background .3s; }
.site-header.scrolled { box-shadow: 0 8px 30px rgba(13,28,48,0.08); border-bottom-color: var(--color-line); background: rgba(255,255,255,0.97); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.header-logo img { height: 36px; width: auto; }
.header-nav { display: flex; align-items: center; gap: 30px; }
.header-nav a { font-weight: 600; font-size: 14.5px; letter-spacing: .005em; color: var(--color-ink); transition: color .2s; position: relative; }
.header-nav a:not(.header-cta)::after { content: ''; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px; background: var(--color-cyan); border-radius: 1px; transform: scaleX(0); transform-origin: right; transition: transform .25s var(--ease-out); }
.header-nav a:hover:not(.header-cta), .header-nav a.active:not(.header-cta) { color: var(--color-cyan-deep); }
.header-nav a:hover:not(.header-cta)::after, .header-nav a.active:not(.header-cta)::after { transform: scaleX(1); transform-origin: left; }
.header-cta { background: var(--color-navy); color: #fff !important; padding: 11px 22px; border-radius: 999px; font-size: 14px; letter-spacing: .01em; box-shadow: 0 6px 16px rgba(65,92,118,.18); transition: background .2s, transform .2s, box-shadow .2s; }
.header-cta:hover { background: var(--color-ink); transform: translateY(-1px); box-shadow: 0 10px 22px rgba(13,28,48,.28); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; margin: -8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-ink); border-radius: 1px; transition: all .3s; }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
@media (max-width: 820px) {
  .nav-toggle { display: flex; }
  .header-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; flex-direction: column; align-items: flex-start; padding: 20px var(--gutter) 24px; gap: 18px; box-shadow: 0 16px 32px rgba(13,28,48,.12); border-top: 1px solid var(--color-line); }
  .header-nav.open { display: flex; }
  .header-nav a:not(.header-cta)::after { display: none; }
  .header-cta { width: 100%; text-align: center; justify-content: center; }
}

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-body); font-weight: 700; font-size: 15px; padding: 13px 25px; border-radius: 999px; transition: all .25s var(--ease-out); text-decoration: none; }
.btn-primary { background: var(--color-navy); color: #fff; box-shadow: 0 1px 2px rgba(13,28,48,.08); }
.btn-primary:hover { background: var(--color-ink); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(13,28,48,.24); }
.btn-cyan { background: var(--color-cyan); color: #fff; }
.btn-cyan:hover { background: var(--color-cyan-deep); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(44,152,217,.32); }
.btn-outline { background: transparent; color: var(--color-ink); border: 1.5px solid rgba(13,28,48,.22); }
.btn-outline:hover { border-color: var(--color-cyan); color: var(--color-cyan-deep); transform: translateY(-2px); }
.btn-white { background: #fff; color: var(--color-ink); }
.btn-white:hover { background: var(--color-cyan-soft); transform: translateY(-2px); }
.btn-arrow::after { content: ''; display: inline-block; width: 16px; height: 16px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14'/%3E%3Cpath d='m12 5 7 7-7 7'/%3E%3C/svg%3E") no-repeat center / contain; transition: transform .25s; }
.btn-arrow:hover::after { transform: translateX(4px); }
.btn-primary.btn-arrow::after, .btn-cyan.btn-arrow::after { filter: brightness(0) invert(1); }

/* ── Type helpers ── */
.eyebrow { display: inline-flex; align-items: center; gap: 9px; font-size: 12.5px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--color-cyan-deep); margin-bottom: 16px; }
.eyebrow::before { content: ''; display: block; width: 18px; height: 2px; background: currentColor; border-radius: 1px; flex: none; }
.lead { font-size: var(--text-lead); color: var(--color-muted); }
.section-head { max-width: 660px; margin: 0 auto 46px; text-align: center; }
.section-head p { margin-top: 14px; }
.section-head.left { margin-left: 0; text-align: left; }
.mist { background: var(--color-mist); }
.muted { color: var(--color-muted); }

/* ── Hero ── */
.hero { padding: clamp(60px, 9vw, 116px) 0 clamp(44px, 6vw, 80px); background: radial-gradient(900px 520px at 85% -12%, rgba(44,152,217,.14), transparent 60%), linear-gradient(180deg, #f7fbfd 0%, #fff 100%); }
.hero-grid { display: grid; gap: 40px; align-items: center; }
@media (min-width: 900px) { .hero-grid { grid-template-columns: 1.15fr 0.85fr; gap: 56px; } }
.hero h1 { margin: 0 0 22px; max-width: 13ch; }
.hero h1 em { font-style: italic; font-weight: 500; color: inherit; }
.hero .lead { max-width: 54ch; margin-bottom: 28px; }
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 28px; font-size: 13.5px; color: var(--color-muted); font-weight: 600; }
.hero-proof span { display: inline-flex; align-items: center; }
.hero-proof span::before { content: ''; width: 15px; height: 15px; margin-right: 7px; border-radius: 50%; background: var(--color-cyan-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231c7fb8' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") no-repeat center / 9px; flex: none; }
.hero-visual { position: relative; }
.hero-visual img { width: 100%; border-radius: var(--radius-xl); box-shadow: var(--shadow-card); border: 1px solid rgba(13,28,48,.06); }
.hero-card { position: absolute; left: -12px; bottom: 22px; background: #fff; border: 1px solid var(--color-line); border-radius: 14px; padding: 14px 16px; box-shadow: var(--shadow-card-hover); max-width: 300px; font-size: 13.5px; line-height: 1.5; }
.hero-card strong { display: block; font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--color-cyan-deep); margin-bottom: 5px; }
@media (max-width: 899px) { .hero-card { position: static; margin-top: 16px; max-width: none; } }
@media (max-width: 640px) { .hero h1 { max-width: 15ch; } }

/* ── Logo strip ── */
.logos { padding: 34px 0 8px; }
.logos p { text-align: center; font-size: 12.5px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--color-muted); margin-bottom: 24px; }
.logos-grid { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 20px 42px; }
.logos-grid img { max-height: 42px; width: auto; opacity: .7; filter: grayscale(1); transition: opacity .3s, filter .3s; }
.logos-grid a:hover img { opacity: 1; filter: none; }

/* ── Cards ── */
.cards { display: grid; gap: 22px; }
@media (min-width: 700px) { .cards-2 { grid-template-columns: 1fr 1fr; } .cards-3 { grid-template-columns: repeat(3, 1fr); } .cards-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .cards-4 { grid-template-columns: repeat(4, 1fr); } }
.card-tb { background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg); padding: 30px 28px; box-shadow: var(--shadow-card); transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out), border-color .3s; }
.card-tb:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); border-color: var(--color-line-strong); }
.card-tb h3 { margin-bottom: 10px; }
.card-tb p { color: var(--color-muted); font-size: 15.5px; }
.card-icon { width: 46px; height: 46px; border-radius: 12px; background: linear-gradient(135deg, var(--color-cyan-soft), #d7effb); color: var(--color-cyan-deep); display: grid; place-items: center; margin-bottom: 20px; box-shadow: inset 0 0 0 1px rgba(28,127,184,.14); }
.card-icon svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* ── Agents ── */
.agents-section { background: linear-gradient(180deg, var(--color-dark-1) 0%, var(--color-dark-2) 100%); color: #c9d6e6; position: relative; overflow: hidden; }
.agents-section::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 85% 65% at 55% 0%, black 35%, transparent 88%);
  mask-image: radial-gradient(ellipse 85% 65% at 55% 0%, black 35%, transparent 88%);
  pointer-events: none;
}
.agents-section::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(700px 420px at 90% 5%, rgba(44,152,217,.26), transparent 60%), radial-gradient(520px 320px at 4% 100%, rgba(44,152,217,.13), transparent 55%);
  pointer-events: none;
}
.agents-section .container { position: relative; z-index: 1; }
.agents-section h2, .agents-section h3 { color: #fff; }
.agents-section .eyebrow { color: #8fc9ec; }
.agents-section p { color: #aebfd2; }
.agent-grid { display: grid; gap: 16px; margin-top: 38px; }
@media (min-width: 640px) { .agent-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .agent-grid { grid-template-columns: repeat(3, 1fr); } }
.agent { display: flex; gap: 16px; align-items: flex-start; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.09); border-radius: 16px; padding: 22px; transition: background .3s, transform .3s, border-color .3s; }
.agent:hover { background: rgba(255,255,255,.075); border-color: rgba(255,255,255,.18); transform: translateY(-3px); }
.agent-mark { flex: 0 0 46px; width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; font-family: var(--font-display); font-weight: 700; font-size: 19px; color: #fff; box-shadow: 0 8px 18px -4px rgba(44,152,217,.5); }
.agent:nth-child(6n+1) .agent-mark { background: linear-gradient(135deg, #2c98d9, #57b6ea); }
.agent:nth-child(6n+2) .agent-mark { background: linear-gradient(135deg, #163a56, #2c98d9); }
.agent:nth-child(6n+3) .agent-mark { background: linear-gradient(135deg, #415c76, #4fb3e8); }
.agent:nth-child(6n+4) .agent-mark { background: linear-gradient(135deg, #1c7fb8, #7fd0ef); }
.agent:nth-child(6n+5) .agent-mark { background: linear-gradient(135deg, #2f4860, #2c98d9); }
.agent:nth-child(6n+6) .agent-mark { background: linear-gradient(135deg, #0f2e4a, #3fa8dd); }
.agent h3 { font-size: 1.1rem; margin-bottom: 2px; }
.agent .for { font-size: 12px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; color: #7fbfe6; margin-bottom: 8px; }
.agent p { font-size: 14.5px; line-height: 1.55; margin: 0; color: #aebfd2; }
.agents-cta { margin-top: 38px; display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.agents-cta .btn-outline { color: #fff; border-color: rgba(255,255,255,.35); }
.agents-cta .btn-outline:hover { border-color: #fff; color: #fff; }

/* ── Stats ── */
.stats-band { padding: var(--space-section-sm) 0; }
.stats-band .container > div { display: grid; background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); overflow: hidden; }
@media (min-width: 700px) { .stats-band .container > div { grid-template-columns: repeat(3, 1fr); } }
.stat { text-align: center; padding: 36px 22px; position: relative; }
@media (max-width: 699px) { .stat { border-top: 1px solid var(--color-line); } .stat:first-child { border-top: 0; } }
@media (min-width: 700px) { .stat:not(:first-child)::before { content: ''; position: absolute; left: 0; top: 22%; bottom: 22%; width: 1px; background: var(--color-line); } }
.stat-number { font-family: var(--font-display); font-weight: 700; font-size: clamp(2.1rem, 3.2vw, 2.95rem); color: var(--color-navy); line-height: 1; margin-bottom: 10px; letter-spacing: -0.01em; }
.stat-desc { color: var(--color-muted); font-size: 14.5px; max-width: 230px; margin: 0 auto; line-height: 1.5; }

/* ── Steps ── */
.steps { display: grid; gap: 22px; counter-reset: step; }
@media (min-width: 800px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { position: relative; padding: 30px 26px 26px; background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg); transition: transform .3s var(--ease-out), box-shadow .3s; }
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.step::before { counter-increment: step; content: counter(step, decimal-leading-zero); font-family: var(--font-display); font-size: 2.1rem; font-weight: 700; color: var(--color-cyan); display: block; margin-bottom: 12px; line-height: 1; letter-spacing: -0.02em; }
.step h3 { margin-bottom: 8px; }
.step p { color: var(--color-muted); font-size: 15.5px; }

/* ── Tiers ── */
.tiers { display: grid; gap: 24px; align-items: stretch; }
@media (min-width: 900px) { .tiers { grid-template-columns: repeat(3, 1fr); gap: 22px; } }
.tier { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg); padding: 32px 28px; box-shadow: var(--shadow-card); position: relative; transition: transform .3s var(--ease-out), box-shadow .3s; }
.tier:hover { transform: translateY(-4px); }
.tier.featured { border: 2px solid var(--color-cyan); box-shadow: 0 26px 56px -16px rgba(44,152,217,.34); background: linear-gradient(180deg, #fff 0%, #fff 55%, var(--color-cyan-soft) 220%); }
@media (min-width: 900px) {
  .tier.featured { transform: translateY(-14px); padding-top: 40px; padding-bottom: 40px; }
  .tier.featured:hover { transform: translateY(-18px); }
}
.tier.featured::before { content: 'Most partners start here'; position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--color-cyan); color: #fff; font-size: 11.5px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; padding: 6px 16px; border-radius: 999px; box-shadow: 0 8px 18px rgba(44,152,217,.4); white-space: nowrap; }
.tier .eyebrow { margin-bottom: 10px; }
.tier h3 { font-size: 1.55rem; margin-bottom: 8px; }
.tier .fit { color: var(--color-muted); font-size: 15px; margin-bottom: 20px; }
.tier ul { list-style: none; padding: 0; margin: 0 0 26px; flex: 1; }
.tier li { padding: 9px 0 9px 28px; position: relative; font-size: 15px; border-top: 1px solid var(--color-line); }
.tier li:first-child { border-top: 0; }
.tier li::before { content: ''; position: absolute; left: 2px; top: 14px; width: 16px; height: 16px; border-radius: 50%; background: var(--color-cyan-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231c7fb8' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") no-repeat center / 10px; }
.tier .btn { align-self: flex-start; }

/* ── Case studies ── */
.case { display: block; background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow-card); transition: transform .3s var(--ease-out), box-shadow .3s, border-color .3s; }
.case:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); border-color: var(--color-line-strong); }
.case .eyebrow { margin-bottom: 10px; }
.case h3 { margin-bottom: 8px; }
.case p { color: var(--color-muted); font-size: 15px; margin-bottom: 16px; }
.case span:last-child { font-weight: 700; color: var(--color-cyan-deep); font-size: 14.5px; }

/* ── Testimonials (slider kept from the previous build) ── */
.testimonial-slider { position: relative; max-width: 780px; margin: 0 auto; display: flex; align-items: center; gap: 16px; }
.ts-viewport { overflow: hidden; flex: 1; min-width: 0; }
.ts-track { display: flex; transition: transform .6s var(--ease-out); will-change: transform; }
.ts-slide { flex: 0 0 100%; min-width: 0; background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-lg); padding: 42px 44px; box-shadow: var(--shadow-card); text-align: center; }
.ts-quote-mark { display: block; font-family: var(--font-display); font-size: 3.2rem; line-height: 1; color: var(--color-cyan); opacity: .35; margin-bottom: 6px; }
.ts-slide p { font-size: 1.1rem; font-family: var(--font-display); font-style: italic; line-height: 1.6; margin-bottom: 22px; color: var(--color-ink); }
.ts-author { font-weight: 800; color: var(--color-ink); }
.ts-title { font-size: 14px; color: var(--color-muted); }
.ts-arrow { flex-shrink: 0; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--color-line); background: #fff; color: var(--color-cyan-deep); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: background .25s, color .25s, transform .25s, border-color .25s; }
.ts-arrow:hover { background: var(--color-cyan); border-color: var(--color-cyan); color: #fff; transform: scale(1.08); }
.ts-arrow svg { width: 20px; height: 20px; }
.ts-dots { position: absolute; left: 0; right: 0; bottom: -36px; display: flex; justify-content: center; gap: 10px; }
.ts-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--color-muted); opacity: .35; border: none; padding: 0; cursor: pointer; transition: opacity .25s, transform .25s, background .25s; }
.ts-dot:hover { opacity: .7; }
.ts-dot[aria-current="true"] { background: var(--color-cyan); opacity: 1; transform: scale(1.25); }
@media (max-width: 640px) { .testimonial-slider { gap: 8px; } .ts-slide { padding: 30px 20px; } .ts-arrow { width: 40px; height: 40px; } .ts-arrow svg { width: 16px; height: 16px; } }
@media (prefers-reduced-motion: reduce) { .ts-track { transition: none; } }

/* ── Playbook band ── */
.playbook-band { background: linear-gradient(135deg, var(--color-navy) 0%, #2f4860 55%, var(--color-cyan-deep) 135%); color: #fff; border-radius: var(--radius-xl); padding: clamp(30px, 4vw, 50px); display: grid; gap: 24px; align-items: center; position: relative; overflow: hidden; }
.playbook-band::before { content: ''; position: absolute; inset: 0; background: radial-gradient(440px 280px at 92% -25%, rgba(255,255,255,.18), transparent 62%); pointer-events: none; }
.playbook-band > * { position: relative; z-index: 1; }
@media (min-width: 860px) { .playbook-band { grid-template-columns: 1.3fr 0.7fr; } }
.playbook-band h2, .playbook-band h3 { color: #fff; }
.playbook-band p { color: #d8e5f1; }
.playbook-band .eyebrow { color: #9fd3f5; }
.playbook-band .actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: flex-start; }
@media (min-width: 860px) { .playbook-band .actions { justify-content: flex-end; } }

/* ── FAQ ── */
.faq { max-width: 800px; margin: 0 auto; }
.faq details { border-top: 1px solid var(--color-line); padding: 6px 0; }
.faq details:last-child { border-bottom: 1px solid var(--color-line); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 40px 18px 0; font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; color: var(--color-ink); position: relative; transition: color .2s; }
.faq summary:hover { color: var(--color-cyan-deep); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 1.6rem; color: var(--color-cyan); font-weight: 400; transition: transform .25s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq .answer { padding: 0 0 20px; color: var(--color-muted); }

/* ── CTA / form ── */
.cta-section { background: var(--color-mist); }
.cta-grid { display: grid; gap: 32px; align-items: start; }
@media (min-width: 900px) { .cta-grid { grid-template-columns: 1.05fr 0.95fr; } }
.cta-form-container { background: #fff; padding: 2.25rem; border-radius: var(--radius-lg); box-shadow: var(--shadow-card); border: 1px solid var(--color-line); }
.cta-form-container h2 { font-size: 1.6rem; margin-bottom: 10px; }
.cta-form-container > p { color: var(--color-muted); margin-bottom: 22px; }
.cta-aside h3 { margin-bottom: 14px; }
.cta-aside ul { list-style: none; padding: 0; margin: 0 0 22px; }
.cta-aside li { padding: 11px 0 11px 30px; position: relative; border-top: 1px solid var(--color-line); color: #2a2e35; }
.cta-aside li:first-child { border-top: 0; }
.cta-aside li::before { content: ''; position: absolute; left: 0; top: 15px; width: 18px; height: 18px; border-radius: 50%; background: var(--color-cyan-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231c7fb8' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") no-repeat center / 11px; }
.cta-aside .direct { font-size: 15px; color: var(--color-muted); }
.cta-aside .direct a { color: var(--color-cyan-deep); font-weight: 700; }

/* ── Footer ── */
.site-footer { background: #0e1b34; color: #b9c8d9; padding: 68px 0 32px; border-top: 3px solid; border-image: linear-gradient(90deg, var(--color-navy), var(--color-cyan)) 1; }
.footer-inner { display: grid; gap: 40px; }
@media (min-width: 860px) { .footer-inner { grid-template-columns: 1.2fr 2fr; } }
.footer-brand img { height: 40px; width: auto; margin-bottom: 18px; filter: brightness(0) invert(1); }
.footer-brand p { font-size: 14.5px; line-height: 1.6; max-width: 300px; margin-bottom: 20px; color: #a9bccf; }
.footer-contact a { display: block; color: #fff; font-weight: 600; font-size: 15px; margin-bottom: 6px; }
.footer-contact a:hover { color: #7fc4ee; }
.footer-social { display: flex; gap: 10px; margin-top: 16px; }
.footer-social a { width: 36px; height: 36px; background: rgba(255,255,255,.08); border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: background .2s, transform .2s; }
.footer-social a:hover { background: var(--color-cyan); transform: translateY(-2px); }
.footer-social svg { width: 16px; height: 16px; fill: #fff; }
.footer-nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 560px) { .footer-nav { grid-template-columns: 1fr 1fr; } }
.footer-col h5 { font-family: var(--font-body); font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: #fff; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 14.5px; color: #a9bccf; margin-bottom: 10px; transition: color .2s; }
.footer-col a:hover { color: #7fc4ee; }
.footer-bottom { margin-top: 48px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); font-size: 13.5px; color: #8296ac; display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
.footer-bottom a { color: #a9bccf; text-decoration: underline; text-underline-offset: 3px; }

/* ── Blog playbook callout (injected on every post) ── */
.tb-post-playbook { max-width: 760px; margin: 40px auto 56px; padding: 0 var(--gutter); }
.tb-post-playbook .playbook-band { padding: 28px; }
.tb-post-playbook h3 { font-size: 1.35rem; margin-bottom: 6px; }
.tb-post-playbook p { font-size: 15px; margin: 0; }

/* ── Motion ── */
@keyframes tb-rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.rise { animation: tb-rise .7s var(--ease-out) both; }
.rise-2 { animation-delay: .12s; }
.rise-3 { animation-delay: .24s; }
@media (prefers-reduced-motion: reduce) { .rise, .rise-2, .rise-3 { animation: none; } }

/* Scroll-linked reveal — progressive enhancement only. Gated by @supports so
   content is fully visible everywhere except browsers that implement
   scroll-driven animations; never hidden by default without this feature. */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .card-tb, .agent, .step, .tier, .case {
      animation: tb-rise .6s ease-out both;
      animation-timeline: view();
      animation-range: entry 0% cover 20%;
    }
  }
}

/* ── Mobile rhythm tightening ── */
@media (max-width: 640px) {
  .hero { padding-top: 52px; padding-bottom: 40px; }
  .stats-band { padding: 40px 0; }
}