/* ════════════════════════════════════════════════════════════════
   FOOTER / UTILITY PAGES — .ft-* (quartet v6)
   About · Contact · Support · Methodology · Imprint · Embed ·
   Privacy · Security · Terms.  Quiet, trustworthy, editorial.

   Token map (design → codebase):
     --bg/--bg-2/--surface    → --bg-deep / --surface-deep
     --surface-2              → --surface-deep-2
     --surface-hi             → --surface-deep-hi
     --line                   → --line-deep
     --line-2                 → --line-deep-2
     --ink                    → --ink-deep
     --ink-2                  → --ink-deep-2
     --muted                  → --muted-deep
     --muted-2                → --muted-deep-2
     --faint                  → --faint-deep
     --cyan                   → --quartet-cyan
     --violet                 → --quartet-violet
     --indigo                 → --quartet-indigo
     --amber                  → --quartet-amber
     --coral                  → --quartet-coral
     --pos                    → --quartet-pos
     --pos-fill               → --quartet-pos-fill
     --pos-border             → --quartet-pos-border
     --neg                    → --quartet-neg
     --font-mono              → --font-quartet-mono

   Accent driven by --res-accent vars on .ft-page (default cyan).
   ════════════════════════════════════════════════════════════════ */

.ft-page {
  --res-accent: var(--quartet-cyan);
  --res-accent-2: var(--quartet-cyan-2);
  --res-accent-fill: var(--quartet-cyan-fill);
  --res-accent-border: var(--quartet-cyan-border);
  --res-accent-ink: var(--bg-deep);
  font-family: var(--font-quartet);
  color: var(--ink-deep);
  max-width: 1180px; margin: 0 auto; padding: 28px 32px 64px;
}
.ft-page.narrow { max-width: 880px; }
.ft-page.mid { max-width: 1000px; }

/* ─── Hero / page head ─────────────────────────────────────────── */
.ft-hero { padding: 18px 0 34px; margin-bottom: 48px; border-bottom: 1px solid var(--line-deep-2); }
.ft-hero.center { text-align: center; }
.ft-eyebrow {
  display: flex; align-items: center; gap: 12px;
  font-size: 10.5px; color: var(--muted-deep);
  text-transform: uppercase; letter-spacing: 0.20em; font-weight: 600;
  margin-bottom: 20px;
}
.ft-hero.center .ft-eyebrow { justify-content: center; }
.ft-eyebrow .pulse {
  display: inline-block; width: 6px; height: 6px; border-radius: 999px;
  background: var(--res-accent); animation: ft-capital-pulse 2.4s ease-out infinite;
}
@keyframes ft-capital-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(109, 212, 220, 0.55); }
  70%  { box-shadow: 0 0 0 7px rgba(109, 212, 220, 0); }
  100% { box-shadow: 0 0 0 0 rgba(109, 212, 220, 0); }
}
.ft-eyebrow .sep { color: var(--faint-deep); }
.ft-eyebrow .mono { font-family: var(--font-quartet-mono); letter-spacing: 0.06em; color: var(--muted-deep-2); text-transform: none; }
.ft-title {
  font-size: 50px; font-weight: 600; letter-spacing: -0.038em; line-height: 1.0;
  color: var(--ink-deep); margin: 0 0 18px; text-wrap: balance;
}
.ft-title .accent { color: var(--res-accent); }
.ft-lede {
  font-size: 17px; color: var(--muted-deep); line-height: 1.6; margin: 0; max-width: 64ch; text-wrap: pretty;
}
.ft-hero.center .ft-lede { margin-left: auto; margin-right: auto; }
.ft-lede b { color: var(--ink-deep-2); font-weight: 500; }
.ft-updated {
  font-family: var(--font-quartet-mono); font-size: 11.5px; color: var(--muted-deep-2);
  letter-spacing: 0.02em; margin-top: 16px;
}

/* ─── Prose ────────────────────────────────────────────────────── */
.ft-prose { color: var(--ink-deep-2); }
.ft-prose p { font-size: 15px; line-height: 1.72; margin: 0 0 18px; max-width: 70ch; text-wrap: pretty; }
.ft-prose p:last-child { margin-bottom: 0; }
.ft-prose strong, .ft-prose b { color: var(--ink-deep); font-weight: 600; }
.ft-prose ul { list-style: none; margin: 0 0 18px; padding: 0; max-width: 70ch; }
.ft-prose ul li {
  position: relative; padding-left: 22px; font-size: 15px; line-height: 1.68;
  margin-bottom: 12px; text-wrap: pretty;
}
.ft-prose ul li::before {
  content: ''; position: absolute; left: 4px; top: 10px;
  width: 5px; height: 5px; border-radius: 999px; background: var(--res-accent); opacity: 0.85;
}
.ft-prose ul li strong { color: var(--ink-deep); }
.ft-prose h3 { font-size: 15px; font-weight: 600; color: var(--ink-deep); margin: 24px 0 10px; letter-spacing: -0.01em; }
.ft-link {
  color: var(--res-accent); text-decoration: underline; text-underline-offset: 2px;
  text-decoration-thickness: 1px; text-decoration-color: var(--res-accent-border);
  transition: text-decoration-color .15s;
}
.ft-link:hover { text-decoration-color: var(--res-accent); }
.ft-code-inline {
  font-family: var(--font-quartet-mono); font-size: 0.92em; color: var(--ink-deep);
  background: var(--surface-deep); border: 1px solid var(--line-deep-2); border-radius: 4px;
  padding: 1px 6px; letter-spacing: -0.01em;
}

/* agreement / highlight callout */
.ft-callout {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 18px 20px; margin-bottom: 40px;
  background: var(--res-accent-fill); border: 1px solid var(--res-accent-border);
  border-radius: 8px;
}
.ft-callout svg { width: 18px; height: 18px; color: var(--res-accent); flex-shrink: 0; margin-top: 1px; }
.ft-callout p { margin: 0; font-size: 14px; line-height: 1.6; color: var(--ink-deep); max-width: none; }

/* ─── Legal doc — sticky TOC + sections ────────────────────────── */
.ft-doc { display: grid; grid-template-columns: 232px minmax(0, 1fr); gap: 64px; align-items: start; }
.ft-toc { position: sticky; top: 24px; align-self: start; }
.ft-toc-label {
  font-size: 10px; color: var(--muted-deep); text-transform: uppercase;
  letter-spacing: 0.18em; font-weight: 600; margin-bottom: 14px;
}
.ft-toc nav { display: flex; flex-direction: column; gap: 1px; border-left: 1px solid var(--line-deep-2); }
.ft-toc a {
  display: grid; grid-template-columns: 26px 1fr; align-items: baseline; gap: 8px;
  padding: 7px 12px; margin-left: -1px;
  border-left: 1px solid transparent;
  font-size: 12.5px; color: var(--muted-deep); text-decoration: none; line-height: 1.35;
  transition: color .15s, border-color .15s;
}
.ft-toc a .n { font-family: var(--font-quartet-mono); font-size: 10.5px; color: var(--muted-deep-2); font-variant-numeric: tabular-nums; }
.ft-toc a:hover { color: var(--ink-deep); }
.ft-toc a.active { color: var(--res-accent); border-left-color: var(--res-accent); }
.ft-toc a.active .n { color: var(--res-accent); }

.ft-doc-body { min-width: 0; }
.ft-sec { padding-bottom: 40px; margin-bottom: 40px; border-bottom: 1px solid var(--line-deep); scroll-margin-top: 24px; }
.ft-sec:last-child { border-bottom: 0; margin-bottom: 0; }
.ft-sec-n {
  font-family: var(--font-quartet-mono); font-size: 11px; color: var(--res-accent);
  letter-spacing: 0.06em; font-weight: 600; margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}
.ft-sec h2 { font-size: 24px; font-weight: 600; letter-spacing: -0.022em; color: var(--ink-deep); margin: 0 0 18px; }

/* ─── About ────────────────────────────────────────────────────── */
.ft-about { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 52px; align-items: start; }
.ft-portrait {
  width: 200px; height: 200px; border-radius: 999px; overflow: hidden;
  border: 1px solid var(--line-deep-2); background: var(--surface-deep);
  display: block;
}
.ft-portrait img { width: 100%; height: 100%; object-fit: cover; }
.ft-about-bio h2 { font-size: 30px; font-weight: 600; letter-spacing: -0.025em; color: var(--ink-deep); margin: 0 0 22px; }
.ft-about-bio .ft-prose p { font-size: 15.5px; }
.ft-about-sig {
  margin-top: 28px; display: inline-flex; align-items: center; gap: 12px;
  font-size: 13px; color: var(--muted-deep);
}
.ft-about-sig .nm { font-weight: 600; color: var(--ink-deep-2); }

/* As seen on */
.ft-seen { margin-top: 52px; padding-top: 36px; border-top: 1px solid var(--line-deep); }
.ft-seen-label {
  font-size: 10px; color: var(--muted-deep); text-transform: uppercase;
  letter-spacing: 0.20em; font-weight: 600; margin-bottom: 20px;
}
.ft-badges { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.ft-badge {
  width: 188px; height: 80px; border-radius: 8px; overflow: hidden;
  border: 1px solid var(--line-deep-2); background: var(--surface-deep);
  display: flex; align-items: center; justify-content: center;
}
.ft-badge img { max-width: 100%; max-height: 100%; object-fit: contain; }
.ft-badge a { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; }

/* generic accent icon tile */
.ft-icon {
  width: 46px; height: 46px; border-radius: 11px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--res-accent); background: var(--res-accent-fill); border: 1px solid var(--res-accent-border);
}
.ft-icon svg { width: 22px; height: 22px; }
.tint-cyan   .ft-icon, .ft-icon.tint-cyan   { color: var(--quartet-cyan);   background: rgba(109,212,220,0.10); border-color: rgba(109,212,220,0.32); }
.tint-indigo .ft-icon, .ft-icon.tint-indigo { color: var(--quartet-indigo); background: rgba(138,159,255,0.10); border-color: rgba(138,159,255,0.32); }
.tint-violet .ft-icon, .ft-icon.tint-violet { color: var(--quartet-violet); background: rgba(184,141,255,0.10); border-color: rgba(184,141,255,0.32); }
.tint-amber  .ft-icon, .ft-icon.tint-amber  { color: var(--quartet-amber);  background: rgba(255,198,109,0.10); border-color: rgba(255,198,109,0.32); }
.tint-coral  .ft-icon, .ft-icon.tint-coral  { color: var(--quartet-coral);  background: rgba(255,155,122,0.10); border-color: rgba(255,155,122,0.32); }
.tint-pos    .ft-icon, .ft-icon.tint-pos    { color: var(--quartet-pos);    background: var(--quartet-pos-fill); border-color: var(--quartet-pos-border); }

/* ─── Contact ──────────────────────────────────────────────────── */
.ft-contact { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr); gap: 48px; align-items: start; }
.ft-form-card {
  background: var(--surface-deep); border: 1px solid var(--line-deep-2); border-radius: 14px;
  padding: 34px 34px 30px;
}
.ft-form { display: flex; flex-direction: column; gap: 22px; }
.ft-field { display: flex; flex-direction: column; gap: 9px; }
.ft-field > label { font-size: 12.5px; font-weight: 600; color: var(--res-accent); letter-spacing: 0.01em; }
.ft-field .req { color: var(--quartet-neg); margin-left: 3px; }
.ft-input, .ft-textarea {
  width: 100%; box-sizing: border-box; font-family: inherit; font-size: 14.5px; color: var(--ink-deep);
  background: var(--bg-deep); border: 1px solid var(--line-deep-2); border-radius: 9px; padding: 13px 15px;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.ft-input::placeholder, .ft-textarea::placeholder { color: var(--muted-deep-2); }
.ft-input:hover, .ft-textarea:hover { border-color: var(--muted-deep-2); }
.ft-input:focus, .ft-textarea:focus { outline: none; border-color: var(--res-accent); box-shadow: 0 0 0 3px var(--res-accent-fill); background: var(--surface-deep); }
.ft-textarea { min-height: 168px; resize: vertical; line-height: 1.6; }
.ft-field.invalid .ft-input, .ft-field.invalid .ft-textarea { border-color: var(--quartet-neg); }
.ft-field-error { font-size: 11.5px; color: var(--quartet-neg); display: none; align-items: center; gap: 6px; }
.ft-field.invalid .ft-field-error { display: flex; }
.ft-field-error svg { width: 13px; height: 13px; flex-shrink: 0; }
.ft-charcount { font-size: 11px; color: var(--muted-deep-2); font-family: var(--font-quartet-mono); align-self: flex-end; }
.ft-submit {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 15px; border-radius: 9px; cursor: pointer; margin-top: 2px;
  font-family: inherit; font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  background: var(--res-accent); color: var(--res-accent-ink); border: 1px solid var(--res-accent);
  transition: all .15s;
}
.ft-submit svg { width: 15px; height: 15px; transition: transform .2s; }
.ft-submit:hover { background: var(--res-accent-2); border-color: var(--res-accent-2); transform: translateY(-1px); }
.ft-submit:hover svg { transform: translateX(3px); }
.ft-submit:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }
.ft-form-note { margin-top: 18px; font-size: 12px; color: var(--muted-deep-2); display: flex; align-items: flex-start; gap: 9px; line-height: 1.5; }
.ft-form-note svg { width: 14px; height: 14px; color: var(--quartet-pos); flex-shrink: 0; margin-top: 1px; }

.ft-success { text-align: center; padding: 28px 12px 16px; }
.ft-success .ok {
  display: inline-flex; align-items: center; justify-content: center; width: 62px; height: 62px;
  border-radius: 999px; margin: 0 auto 22px; background: var(--quartet-pos-fill); border: 1px solid var(--quartet-pos-border); color: var(--quartet-pos);
}
.ft-success .ok svg { width: 30px; height: 30px; }
.ft-success h2 { font-size: 24px; font-weight: 600; color: var(--ink-deep); margin: 0 0 12px; letter-spacing: -0.02em; }
.ft-success p { font-size: 14.5px; color: var(--muted-deep); margin: 0 auto 26px; max-width: 42ch; line-height: 1.55; }
.ft-success .ft-submit { width: auto; padding: 12px 22px; }

/* Contact aside */
.ft-aside { display: flex; flex-direction: column; gap: 14px; }
.ft-aside-card {
  display: block; text-decoration: none; color: inherit;
  background: var(--surface-deep); border: 1px solid var(--line-deep-2); border-radius: 12px;
  padding: 22px 22px; transition: border-color .2s, transform .2s;
}
a.ft-aside-card:hover { border-color: var(--res-accent-border); transform: translateY(-3px); }
.ft-aside-card .top { display: flex; align-items: center; gap: 13px; margin-bottom: 12px; }
.ft-aside-card .ft-icon { width: 40px; height: 40px; border-radius: 10px; }
.ft-aside-card .ft-icon svg { width: 19px; height: 19px; }
.ft-aside-card h3 { font-size: 15px; font-weight: 600; color: var(--ink-deep); margin: 0; letter-spacing: -0.01em; }
.ft-aside-card p { font-size: 13px; color: var(--muted-deep); line-height: 1.55; margin: 0; }
.ft-aside-card .go { display: inline-flex; align-items: center; gap: 7px; margin-top: 14px;
  font-size: 10.5px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--res-accent); }
.ft-aside-card .go svg { width: 13px; height: 13px; transition: transform .2s; }
a.ft-aside-card:hover .go svg { transform: translateX(3px); }

/* ─── Support ──────────────────────────────────────────────────── */
.ft-support { max-width: 760px; margin: 0 auto; }
.ft-support-head { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.ft-support-head .ft-icon { width: 54px; height: 54px; border-radius: 14px; }
.ft-support-head .ft-icon svg { width: 26px; height: 26px; }
.ft-support-head h1 { font-size: 38px; font-weight: 600; letter-spacing: -0.03em; color: var(--ink-deep); margin: 0; }
.ft-support-lede { font-size: 16px; color: var(--muted-deep); line-height: 1.6; margin: 0 0 34px; text-wrap: pretty; }
.ft-support-benefits {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-bottom: 40px;
}
.ft-benefit {
  display: flex; align-items: center; gap: 13px; padding: 16px 18px;
  background: var(--surface-deep); border: 1px solid var(--line-deep-2); border-radius: 10px;
}
.ft-benefit .chk {
  width: 26px; height: 26px; border-radius: 999px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--res-accent-fill); border: 1px solid var(--res-accent-border); color: var(--res-accent);
}
.ft-benefit .chk svg { width: 14px; height: 14px; }
.ft-benefit span { font-size: 14px; color: var(--ink-deep-2); line-height: 1.4; }

.ft-tiers { display: grid; gap: 14px; margin-bottom: 32px; }
.ft-tier {
  position: relative; display: flex; align-items: center; gap: 18px; overflow: hidden;
  padding: 22px 24px; text-decoration: none; color: inherit;
  background: var(--surface-deep); border: 1px solid var(--line-deep-2); border-radius: 14px;
  transition: border-color .2s, transform .2s;
}
.ft-tier:hover { transform: translateY(-3px); border-color: var(--res-accent-border); }
.ft-tier-icon {
  width: 52px; height: 52px; border-radius: 13px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center; font-size: 26px;
  background: var(--surface-deep); border: 1px solid var(--line-deep-2);
}
.ft-tier-meta { flex: 1; min-width: 0; }
.ft-tier-meta .t { display: block; font-size: 18px; font-weight: 600; color: var(--ink-deep); letter-spacing: -0.015em; }
.ft-tier-meta .s { display: block; font-size: 13px; color: var(--muted-deep); margin-top: 3px; }
.ft-tier-arrow { color: var(--muted-deep-2); transition: transform .2s, color .2s; }
.ft-tier-arrow svg { width: 20px; height: 20px; display: block; }
.ft-tier:hover .ft-tier-arrow { transform: translateX(4px); color: var(--res-accent); }
/* featured tier — subtle accent wash */
.ft-tier.featured {
  border-color: var(--res-accent-border);
  background:
    radial-gradient(140% 160% at 0% 0%, var(--res-accent-fill), transparent 60%),
    var(--surface-deep);
}
.ft-tier.featured .ft-tier-icon { background: var(--res-accent-fill); border-color: var(--res-accent-border); }
.ft-tier.featured .ft-tier-arrow { color: var(--res-accent); }
.ft-tier .ft-tier-tag {
  position: absolute; top: 16px; right: 18px;
  font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--res-accent);
}
.ft-support-foot {
  text-align: center; font-size: 14px; color: var(--muted-deep); font-style: italic;
  padding-top: 28px; border-top: 1px solid var(--line-deep); text-wrap: pretty;
}

/* ─── Methodology ──────────────────────────────────────────────── */
.ft-methods { display: grid; gap: 14px; margin-bottom: 52px; }
.ft-method {
  display: grid; grid-template-columns: 46px minmax(0, 1fr); gap: 20px; align-items: start;
  background: var(--surface-deep); border: 1px solid var(--line-deep-2); border-radius: 12px;
  padding: 26px 28px; transition: border-color .2s;
}
.ft-method:hover { border-color: var(--res-accent-border); }
.ft-method-body h3 { font-size: 17px; font-weight: 600; color: var(--ink-deep); margin: 0 0 9px; letter-spacing: -0.01em; }
.ft-method-body p { font-size: 14px; color: var(--muted-deep); line-height: 1.62; margin: 0; max-width: 72ch; text-wrap: pretty; }
.ft-formula {
  display: inline-block; font-family: var(--font-quartet-mono); font-size: 13px; color: var(--ink-deep);
  background: var(--bg-deep); border: 1px solid var(--line-deep-2); border-radius: 6px;
  padding: 8px 12px; margin: 12px 0 4px; letter-spacing: -0.01em;
}
.ft-formula sup { color: var(--res-accent); }
.ft-formula .v { color: var(--res-accent); }
.ft-sources { background: var(--surface-deep); border: 1px solid var(--line-deep-2); border-radius: 12px; padding: 26px 28px; }
.ft-sources-label { font-size: 10px; color: var(--muted-deep); text-transform: uppercase; letter-spacing: 0.18em; font-weight: 600; margin-bottom: 16px; }
.ft-source-list { display: grid; gap: 2px; }
.ft-source {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 13px 0; border-top: 1px solid var(--line-deep); text-decoration: none; color: var(--ink-deep-2);
  transition: color .15s;
}
.ft-source:first-child { border-top: 0; }
.ft-source:hover { color: var(--res-accent); }
.ft-source .nm { font-size: 14.5px; font-weight: 500; }
.ft-source .ar { color: var(--muted-deep-2); transition: transform .2s, color .2s; }
.ft-source .ar svg { width: 15px; height: 15px; display: block; }
.ft-source:hover .ar { transform: translateX(3px); color: var(--res-accent); }

/* ─── Imprint ──────────────────────────────────────────────────── */
.ft-imprint { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.ft-imprint-card {
  background: var(--surface-deep); border: 1px solid var(--line-deep-2); border-radius: 12px; padding: 28px 30px;
}
.ft-imprint-card.span2 { grid-column: 1 / -1; }
.ft-imprint-card h2 {
  font-size: 11px; font-weight: 600; color: var(--res-accent); text-transform: uppercase;
  letter-spacing: 0.18em; margin: 0 0 18px;
}
.ft-imprint-card address { font-style: normal; }
.ft-imprint-card .line { font-size: 15px; color: var(--ink-deep-2); line-height: 1.65; }
.ft-imprint-card .line.strong { color: var(--ink-deep); font-weight: 600; }
.ft-imprint-row { display: flex; gap: 12px; padding: 9px 0; border-top: 1px solid var(--line-deep); font-size: 14.5px; }
.ft-imprint-row:first-child { border-top: 0; }
.ft-imprint-row .k { color: var(--muted-deep-2); min-width: 96px; }
.ft-imprint-row .v { color: var(--ink-deep-2); }
.ft-imprint-card .ft-prose p { font-size: 14px; }

/* ─── Embed ────────────────────────────────────────────────────── */
.ft-embed-section { margin-bottom: 56px; }
.ft-section-head { margin-bottom: 24px; }
.ft-section-head h2 {
  font-size: 12px; font-weight: 600; color: var(--res-accent); text-transform: uppercase;
  letter-spacing: 0.18em; margin: 0;
}
.ft-section-head .sub { font-size: 14px; color: var(--muted-deep); margin: 8px 0 0; line-height: 1.55; }

.ft-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.ft-step {
  background: var(--surface-deep); border: 1px solid var(--line-deep-2); border-radius: 12px;
  padding: 26px 26px 24px;
}
.ft-step-n {
  display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px;
  border-radius: 999px; margin-bottom: 18px; font-family: var(--font-quartet-mono); font-size: 14px; font-weight: 600;
  background: var(--res-accent-fill); border: 1px solid var(--res-accent-border); color: var(--res-accent);
  font-variant-numeric: tabular-nums;
}
.ft-step h3 { font-size: 16px; font-weight: 600; color: var(--ink-deep); margin: 0 0 8px; letter-spacing: -0.01em; }
.ft-step p { font-size: 13.5px; color: var(--muted-deep); line-height: 1.55; margin: 0; }

/* Try-it panel */
.ft-tryit { background: var(--surface-deep); border: 1px solid var(--line-deep-2); border-radius: 14px; overflow: hidden; }
.ft-tryit-controls {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)) auto; gap: 18px; align-items: end;
  padding: 24px 26px; border-bottom: 1px solid var(--line-deep);
}
.ft-control { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.ft-control label { font-size: 10.5px; color: var(--muted-deep); text-transform: uppercase; letter-spacing: 0.14em; font-weight: 600; }
.ft-select {
  appearance: none; -webkit-appearance: none; cursor: pointer;
  width: 100%; box-sizing: border-box; font-family: inherit; font-size: 13.5px; color: var(--ink-deep);
  background: var(--bg-deep); border: 1px solid var(--line-deep-2); border-radius: 8px; padding: 11px 36px 11px 13px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23565d6e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 13px center;
  transition: border-color .15s;
}
.ft-select:focus { outline: none; border-color: var(--res-accent); }
.ft-attr { display: flex; align-items: center; gap: 10px; cursor: pointer; user-select: none; padding-bottom: 11px; }
.ft-attr-box {
  width: 18px; height: 18px; border-radius: 5px; border: 1px solid var(--line-deep-2); background: var(--bg-deep);
  display: inline-flex; align-items: center; justify-content: center; color: transparent; transition: all .15s; flex-shrink: 0;
}
.ft-attr-box svg { width: 12px; height: 12px; }
.ft-attr.on .ft-attr-box { background: var(--res-accent); border-color: var(--res-accent); color: var(--res-accent-ink); }
.ft-attr span { font-size: 12px; color: var(--ink-deep-2); max-width: 16ch; line-height: 1.35; }

/* Code block */
.ft-code-wrap { padding: 22px 26px; }
.ft-code-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.ft-code-top .lbl { font-size: 10.5px; color: var(--muted-deep); text-transform: uppercase; letter-spacing: 0.16em; font-weight: 600; }
.ft-copy {
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
  background: transparent; border: 1px solid var(--line-deep-2); border-radius: 7px;
  color: var(--ink-deep-2); font-family: inherit; font-size: 11px; font-weight: 600; letter-spacing: 0.06em;
  padding: 7px 12px; transition: all .15s;
}
.ft-copy:hover { border-color: var(--res-accent-border); color: var(--res-accent); }
.ft-copy.copied { color: var(--quartet-pos); border-color: var(--quartet-pos-border); }
.ft-copy svg { width: 13px; height: 13px; }
.ft-code {
  font-family: var(--font-quartet-mono); font-size: 12.5px; line-height: 1.7; color: var(--ink-deep-2);
  background: var(--bg-deep); border: 1px solid var(--line-deep); border-radius: 8px;
  padding: 16px 18px; overflow-x: auto; white-space: pre-wrap; word-break: break-word;
}
.ft-code .tag { color: var(--res-accent); }
.ft-code .attr { color: var(--quartet-violet); }
.ft-code .str { color: var(--quartet-pos); }
.ft-code .cmt { color: var(--muted-deep-2); }

/* Live preview — kept as a slot for the embedded JS widget */
.ft-preview {
  margin-top: 14px;
  border: 1px solid var(--line-deep-2); border-radius: 14px; overflow: hidden; background: var(--surface-deep);
}
.ft-preview-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 18px; border-bottom: 1px solid var(--line-deep);
}
.ft-preview-bar .lbl { font-size: 10.5px; color: var(--muted-deep); text-transform: uppercase; letter-spacing: 0.16em; font-weight: 600; display: inline-flex; align-items: center; gap: 9px; }
.ft-preview-bar .pulse { width: 6px; height: 6px; border-radius: 999px; background: var(--res-accent); animation: ft-capital-pulse 2.4s ease-out infinite; }
.ft-preview-bar .url { font-family: var(--font-quartet-mono); font-size: 11px; color: var(--muted-deep-2); }
.ft-preview-slot {
  min-height: 360px; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px; text-align: center; padding: 48px 24px;
}
.ft-preview-slot .ic { width: 46px; height: 46px; border-radius: 11px; display: inline-flex; align-items: center; justify-content: center; color: var(--res-accent); background: var(--res-accent-fill); border: 1px solid var(--res-accent-border); }
.ft-preview-slot .ic svg { width: 22px; height: 22px; }
.ft-preview-slot .t { font-size: 13px; color: var(--ink-deep-2); font-weight: 600; }
.ft-preview-slot .d { font-family: var(--font-quartet-mono); font-size: 11.5px; color: var(--muted-deep-2); max-width: 46ch; line-height: 1.5; }

/* Embed preview iframe */
.ft-preview-frame { width: 100%; min-height: 400px; border: 0; }
.ft-preview-frame iframe { width: 100%; min-height: 400px; border: 0; }

/* Why embed grid */
.ft-why { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.ft-feature {
  background: var(--surface-deep); border: 1px solid var(--line-deep-2); border-radius: 12px;
  padding: 26px 26px 24px; transition: border-color .2s, transform .2s;
}
.ft-feature:hover { border-color: var(--res-accent-border); transform: translateY(-3px); }
.ft-feature .ft-icon { margin-bottom: 18px; }
.ft-feature h3 { font-size: 15.5px; font-weight: 600; color: var(--ink-deep); margin: 0 0 8px; letter-spacing: -0.01em; }
.ft-feature p { font-size: 13px; color: var(--muted-deep); line-height: 1.58; margin: 0; }

/* ─── Shared site footer ──────────────────────────────────────── */
.ft-site-foot {
  border-top: 1px solid var(--line-deep-2);
  margin-top: 72px; padding: 0 32px;
  max-width: 1180px; margin-left: auto; margin-right: auto;
  font-family: var(--font-quartet);
}
.ft-site-foot-main {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: 40px;
  padding: 48px 0 44px;
}
.ft-site-foot-brand { max-width: 30ch; }
.ft-site-foot-brand .mark {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600; font-size: 16px; letter-spacing: -0.01em; color: var(--ink-deep);
  text-decoration: none; margin-bottom: 16px;
}
.ft-site-foot-brand .mark img {
  width: 18px; height: 18px; flex-shrink: 0;
}
.ft-site-foot-brand .tag {
  font-size: 13px; color: var(--muted-deep); line-height: 1.6; margin: 0 0 18px; text-wrap: pretty;
  background: none; padding: 0; border-radius: 0; font-weight: 400;
}
.ft-site-foot-social { display: flex; gap: 8px; }
.ft-site-foot-social a {
  width: 34px; height: 34px; border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line-deep-2); color: var(--muted-deep);
  transition: color .15s, border-color .15s, background .15s;
  text-decoration: none;
}
.ft-site-foot-social a:hover { color: var(--res-accent, var(--quartet-cyan)); border-color: var(--res-accent-border, var(--line-deep-2)); }
.ft-site-foot-social a svg { width: 16px; height: 16px; }

.ft-site-foot-col h4 {
  font-size: 10px; font-weight: 600; color: var(--muted-deep);
  text-transform: uppercase; letter-spacing: 0.18em; margin: 0 0 16px;
}
.ft-site-foot-col nav { display: flex; flex-direction: column; gap: 11px; }
.ft-site-foot-col nav a {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--muted-deep); text-decoration: none; transition: color .15s; width: max-content;
}
.ft-site-foot-col nav a:hover { color: var(--ink-deep); }
.ft-site-foot-col nav a svg { width: 13px; height: 13px; color: var(--res-accent, var(--quartet-cyan)); }

.ft-site-foot-bottom {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 24px;
  padding: 22px 0 8px; border-top: 1px solid var(--line-deep);
}
.ft-site-foot-copy {
  font-size: 11.5px; color: var(--muted-deep-2); line-height: 1.6; max-width: 92ch; text-wrap: pretty; margin: 0;
}
.ft-site-foot-copy b { color: var(--muted-deep); font-weight: 600; }
.ft-site-foot-copy .sep { color: var(--faint-deep); margin: 0 8px; }
.ft-site-foot-note {
  flex-shrink: 0; font-size: 10px; color: var(--muted-deep-2);
  text-transform: uppercase; letter-spacing: 0.14em; font-weight: 600;
  padding: 5px 11px; border: 1px solid var(--line-deep-2); border-radius: 999px; white-space: nowrap;
}

/* ─── Responsive ───────────────────────────────────────────────── */
@media (max-width: 1000px) {
  .ft-doc { grid-template-columns: 1fr; gap: 28px; }
  .ft-toc { position: static; }
  .ft-toc nav { flex-flow: row wrap; border-left: 0; gap: 6px; }
  .ft-toc a { border-left: 0; border: 1px solid var(--line-deep-2); border-radius: 999px; margin-left: 0; padding: 6px 12px; }
  .ft-toc a.active { border-color: var(--res-accent); }
  .ft-steps, .ft-why { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ft-tryit-controls { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ft-contact { grid-template-columns: 1fr; gap: 32px; }
  .ft-about { grid-template-columns: 160px minmax(0, 1fr); gap: 36px; }
  .ft-portrait { width: 160px; height: 160px; }
}
@media (max-width: 900px) {
  .ft-site-foot-main { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px 32px; }
  .ft-site-foot-brand { grid-column: 1 / -1; max-width: none; }
}
@media (max-width: 680px) {
  .ft-page { padding: 18px 16px 56px; }
  .ft-site-foot { padding: 0 16px; }
  .ft-title { font-size: 36px; }
  .ft-about { grid-template-columns: 1fr; gap: 26px; }
  .ft-support-benefits, .ft-imprint, .ft-steps, .ft-why { grid-template-columns: 1fr; }
  .ft-tryit-controls { grid-template-columns: 1fr; }
  .ft-support-head h1 { font-size: 30px; }
}
@media (max-width: 560px) {
  .ft-site-foot-main { grid-template-columns: 1fr; gap: 30px; padding: 36px 0 32px; }
  .ft-site-foot-bottom { flex-direction: column-reverse; align-items: flex-start; gap: 16px; }
}