/* tcf.monster — public site. Every value comes from tokens.css (the design system). */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font-sans); font-size: 16px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
svg { display: block; }
sup { font-size: .7em; line-height: 0; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 8px; }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 8px 12px; border-radius: var(--radius-sm); z-index: 50; }
.skip:focus { left: 8px; }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 32px; }
.spacer { flex: 1; }

/* type */
h1, h2, h3, h4 { margin: 0; }
h1 { font-family: var(--font-display); font-weight: 700; font-size: clamp(40px, 5.4vw, 64px); line-height: 1.03; letter-spacing: -0.02em; }
h2 { font-family: var(--font-display); font-weight: 700; font-size: clamp(30px, 3.6vw, 44px); line-height: 1.08; letter-spacing: -0.015em; }
h3 { font-weight: 800; font-size: 20px; line-height: 1.25; letter-spacing: -0.01em; }
p { margin: 0; }
.wordmark { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; font-size: 24px; text-decoration: none; white-space: nowrap; color: var(--ink); }
.wordmark .dot { color: var(--accent); }
.kicker { font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.lead { font-size: 20px; line-height: 1.5; color: var(--ink-muted); max-width: 34em; }
.mark { display: inline-flex; align-items: center; gap: 3px; font-family: var(--font-mono); font-weight: 700; letter-spacing: .04em; line-height: 1; }
.mark svg { width: 1em; height: 1em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.mark.big { font-size: 26px; color: var(--accent); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 46px; padding: 0 22px; border-radius: var(--radius-pill); border: 2px solid var(--ink); background: var(--surface); color: var(--ink); font: inherit; font-weight: 800; font-size: 15px; text-decoration: none; cursor: pointer; white-space: nowrap; box-shadow: var(--shadow-press); transition: transform var(--duration-quick) var(--ease-out), box-shadow var(--duration-quick) var(--ease-out); }
.btn:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--ink); }
.btn.primary { background: var(--accent); color: var(--on-accent); }
.btn.lg { height: 56px; padding: 0 30px; font-size: 16px; }
.btn.small { height: 40px; padding: 0 18px; font-size: 14px; }
.btn.quiet { box-shadow: none; border-color: var(--line); background: transparent; }
.btn.quiet:hover { border-color: var(--ink); }

/* header */
.top { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--bg) 90%, transparent); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 28px; height: 72px; }
.top nav { display: flex; gap: 2px; }
.top nav a { text-decoration: none; font-weight: 700; font-size: 15px; color: var(--ink-muted); padding: 8px 12px; border-radius: var(--radius-pill); }
.top nav a:hover { color: var(--ink); background: var(--surface-2); }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: var(--radius-pill); padding: 3px; background: var(--surface); }
.lang button { border: 0; background: none; font: inherit; font-weight: 800; font-size: 12px; letter-spacing: .04em; padding: 6px 10px; border-radius: var(--radius-pill); color: var(--ink-muted); cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
.link-signin { font-weight: 800; font-size: 15px; text-decoration: none; }
.link-signin:hover { text-decoration: underline; text-underline-offset: 4px; }

/* hero */
.hero { padding: 80px 0 72px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 64px; align-items: center; }
.hero-copy { display: flex; flex-direction: column; gap: 24px; align-items: flex-start; }
.pill-sun { display: inline-block; background: var(--sun-soft); color: var(--ink); border: 1.5px solid var(--sun); font-weight: 800; font-size: 13px; padding: 6px 12px; border-radius: var(--radius-pill); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 4px; }
.checks { list-style: none; margin: 4px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 14px; font-weight: 700; color: var(--ink-muted); }
.checks li { display: flex; align-items: center; gap: 6px; }
.checks svg { width: 16px; height: 16px; fill: none; stroke: var(--ok); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }

/* hero product visual: a real practice screen, drawn from the design system */
.hero-visual { position: relative; padding: 0 0 36px 0; }
.app-window { display: flex; background: var(--surface); border: 2px solid var(--ink); border-radius: 22px; box-shadow: 0 8px 0 var(--ink); overflow: hidden; min-height: 420px; }
.app-rail { width: 56px; flex: none; border-right: 1px solid var(--line); display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 14px 0; }
.rail-logo { width: 26px; height: 26px; border-radius: 8px; background: var(--accent); border: 2px solid var(--ink); margin-bottom: 8px; }
.rail-item { width: 38px; height: 38px; border-radius: 11px; display: flex; align-items: center; justify-content: center; color: var(--ink-muted); }
.rail-item svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.rail-item.on { background: var(--accent); color: var(--on-accent); }
.app-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.app-head { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 800; }
.app-crumb { display: inline-flex; align-items: center; gap: 6px; }
.app-crumb .mark { font-size: 14px; }
.app-count { color: var(--ink-muted); }
.sw { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 800; color: var(--ink-muted); }
.sw i { width: 30px; height: 18px; border-radius: 999px; background: var(--line); position: relative; }
.sw i::after { content: ""; position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; border-radius: 50%; background: var(--surface); border: 1.5px solid var(--ink); box-sizing: border-box; }
.sw.on { color: var(--ink); }
.sw.on i { background: var(--accent); }
.sw.on i::after { left: 14px; }
.app-body { flex: 1; display: grid; grid-template-columns: 1fr 1fr; }
.app-passage { padding: 16px; border-right: 1px solid var(--line); font-size: 13.5px; line-height: 1.6; display: flex; flex-direction: column; gap: 10px; }
.app-hint { background: var(--accent-soft); border-radius: 10px; padding: 8px 10px; font-size: 12.5px; }
.app-hint b { display: block; font-size: 10px; letter-spacing: .08em; color: var(--accent); }
.app-question { padding: 16px; display: flex; flex-direction: column; gap: 7px; }
.app-q { font-weight: 800; font-size: 14px; margin-bottom: 2px; }
.opt { display: flex; align-items: center; gap: 10px; min-height: 38px; padding: 6px 10px; border: 2px solid var(--line); border-radius: 10px; background: var(--surface); font-size: 13px; font-weight: 600; }
.opt b { width: 22px; height: 22px; border-radius: 6px; border: 2px solid var(--line); display: inline-flex; align-items: center; justify-content: center; font-size: 11px; color: var(--ink-muted); flex: none; }
.opt.ok { border-color: var(--ok); background: var(--ok-soft); font-weight: 800; }
.opt.ok b { background: var(--ok); border-color: var(--ok); color: #fff; }
.opt.bad { border-color: var(--bad); background: var(--bad-soft); font-weight: 800; }
.opt.bad b { background: var(--bad); border-color: var(--bad); color: #fff; }
.why { margin-top: 4px; background: var(--ok-soft); border-radius: 12px; padding: 8px 10px; font-size: 12.5px; }
.why b { display: block; font-size: 10px; letter-spacing: .08em; color: var(--ok); }
.float-score { position: absolute; left: -28px; bottom: 0; background: var(--surface); border: 2px solid var(--ink); border-radius: 18px; box-shadow: 0 6px 0 var(--ink); padding: 14px 18px; display: flex; flex-direction: column; gap: 2px; min-width: 210px; }
.fs-label { font-size: 11px; font-weight: 800; color: var(--ink-muted); letter-spacing: .02em; }
.fs-score { font-family: var(--font-display); font-weight: 700; font-size: 44px; line-height: 1; letter-spacing: -0.02em; }
.fs-score small { font-family: var(--font-sans); font-size: 15px; font-weight: 700; color: var(--ink-muted); margin-left: 4px; }
.fs-nclc { align-self: flex-start; margin-top: 4px; font-size: 12px; font-weight: 800; background: var(--sun); color: #23201c; border-radius: 999px; padding: 3px 10px; }

/* facts */
.facts { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface); }
.facts-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.facts-grid > div { padding: 28px 24px; display: flex; flex-direction: column; gap: 4px; border-left: 1px solid var(--line); }
.facts-grid > div:first-child { border-left: 0; padding-left: 0; }
.facts strong { font-family: var(--font-display); font-weight: 700; font-size: 30px; line-height: 1.1; letter-spacing: -0.01em; }
.facts span { font-size: 14px; font-weight: 700; color: var(--ink-muted); }

/* sections */
.band { padding: 104px 0; scroll-margin-top: 72px; }
.band.tint { background: var(--surface-2); }
.section-head { display: flex; flex-direction: column; gap: 14px; max-width: 760px; margin-bottom: 48px; }
.section-head > p:not(.kicker) { font-size: 18px; color: var(--ink-muted); }

.tests { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.test-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); padding: 26px 24px; display: flex; flex-direction: column; gap: 12px; }
.test-card h3 { font-size: 19px; }
.test-card .format { font-size: 13px; font-weight: 800; color: var(--ink); background: var(--surface-2); border-radius: 8px; padding: 6px 10px; align-self: flex-start; }
.test-card p:not(.format) { font-size: 15px; color: var(--ink-muted); }

.modes { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.mode { border-radius: var(--radius-lg); padding: 32px; display: flex; flex-direction: column; gap: 22px; border: 2px solid var(--ink); box-shadow: 0 6px 0 var(--ink); }
.mode header { display: flex; align-items: center; gap: 16px; }
.mode-icon { width: 52px; height: 52px; border-radius: 16px; display: flex; align-items: center; justify-content: center; flex: none; border: 2px solid currentColor; }
.mode-icon svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.mode-tag { font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.mode h3 { font-family: var(--font-display); font-weight: 700; font-size: 30px; letter-spacing: -0.01em; }
.mode ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; font-size: 16px; font-weight: 700; }
.mode li { display: flex; gap: 12px; align-items: flex-start; }
.mode li::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; margin-top: 9px; flex: none; opacity: .55; }
.mode.exam { background: var(--hall); color: var(--hall-ink); border-color: var(--hall); }
.mode.exam .mode-tag, .mode.exam .mode-icon { color: var(--sun); }
.mode.practice { background: var(--surface); }
.mode.practice .mode-tag { color: var(--accent); }
.mode.practice .mode-icon { color: var(--ok); }

.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.feature { display: flex; flex-direction: column; gap: 12px; }
.feature-visual { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); padding: 20px; display: flex; flex-direction: column; gap: 8px; height: 236px; overflow: hidden; margin-bottom: 8px; }
.feature p { font-size: 15.5px; color: var(--ink-muted); }
.note { border-radius: 12px; padding: 8px 12px; font-size: 13px; }
.note b { display: block; font-size: 10.5px; letter-spacing: .08em; }
.note.ok { background: var(--ok-soft); } .note.ok b { color: var(--ok); }
.note.bad { background: var(--bad-soft); } .note.bad b { color: var(--bad); }
.essay { background: var(--surface-2); border-radius: 12px; padding: 12px 14px; font-size: 14.5px; line-height: 1.9; }
.essay u { text-decoration: underline wavy var(--bad); text-underline-offset: 5px; }
.bubble { max-width: 82%; padding: 9px 13px; border-radius: 16px; font-size: 13.5px; }
.bubble.them { background: var(--surface-2); align-self: flex-start; border-bottom-left-radius: 4px; }
.bubble.me { background: var(--accent); color: var(--on-accent); align-self: flex-end; border-bottom-right-radius: 4px; font-weight: 700; }
.rec { margin-top: auto; align-self: flex-start; display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 13px; font-weight: 700; padding: 6px 12px; border: 2px solid var(--ink); border-radius: 999px; }
.rec i { width: 10px; height: 10px; border-radius: 50%; background: var(--bad); }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.steps li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); padding: 28px; display: flex; flex-direction: column; gap: 10px; }
.step-n { width: 40px; height: 40px; border-radius: 50%; background: var(--sun); color: #23201c; border: 2px solid var(--ink); font-family: var(--font-display); font-weight: 700; font-size: 20px; display: flex; align-items: center; justify-content: center; margin-bottom: 6px; }
.steps p { font-size: 15.5px; color: var(--ink-muted); }

.free-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 64px; align-items: start; }
.founder { display: flex; flex-direction: column; gap: 18px; }
.founder .big { font-size: 20px; line-height: 1.6; }
.sig { display: flex; flex-direction: column; }
.sig-name { font-family: var(--font-display); font-weight: 700; font-size: 22px; }
.sig-place { font-size: 15px; font-weight: 700; color: var(--ink-muted); }
.gemini { margin-top: 12px; background: var(--surface-2); border-radius: var(--radius-md); padding: 20px 22px; display: flex; flex-direction: column; gap: 6px; }
.gemini p { font-size: 15.5px; color: var(--ink-muted); }
.support { background: var(--surface); border: 2px solid var(--ink); border-radius: var(--radius-lg); box-shadow: 0 6px 0 var(--ink); padding: 24px; display: flex; flex-direction: column; gap: 10px; scroll-margin-top: 90px; }
.support > p { font-size: 15px; color: var(--ink-muted); }
.kofi { margin-top: 8px; border-radius: var(--radius-md); overflow: hidden; background: #f9f9f9; }
.kofi iframe { display: block; width: 100%; border: 0; height: 560px; background: #f9f9f9; }

.faq-wrap { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 64px; align-items: start; }
.faq-wrap .section-head { margin-bottom: 0; }
.faq { display: flex; flex-direction: column; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 20px 40px 20px 0; font-weight: 800; font-size: 17px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-family: var(--font-display); font-size: 26px; color: var(--accent); }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 40px 22px 0; font-size: 16px; color: var(--ink-muted); }

.final { padding: 96px 0; background: var(--accent); color: #23201c; border-top: 2px solid var(--ink); border-bottom: 2px solid var(--ink); }
.final-inner { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 16px; }
.final p { font-size: 18px; font-weight: 700; }
.final .btn.primary { background: #fffbf2; color: #23201c; border-color: #23201c; box-shadow: 0 3px 0 #23201c; margin-top: 8px; }

.site-footer { padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.footer-brand { display: flex; flex-direction: column; gap: 10px; }
.footer-brand p { font-size: 15px; color: var(--ink-muted); }
.site-footer nav { display: flex; flex-direction: column; gap: 10px; }
.site-footer h4 { font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-muted); margin-bottom: 4px; }
.site-footer nav a { text-decoration: none; font-weight: 700; font-size: 15px; }
.site-footer nav a:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer-legal { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); }
.footer-legal p { font-size: 13px; color: var(--ink-muted); max-width: 70em; }

/* legal pages and 404 */
.wordmark.small { font-size: 18px; }
.page-title { font-size: 40px; }
.page-title.spaced { margin-top: 24px; }
.wrap.start { align-items: flex-start; }
.legal { padding: 64px 0 96px; }
.legal .wrap { max-width: 760px; display: flex; flex-direction: column; gap: 16px; }
.legal h2 { font-size: 22px; font-family: var(--font-sans); font-weight: 800; margin-top: 16px; }
.legal p, .legal li { font-size: 16px; color: var(--ink); }
.legal .note { font-size: 14px; color: var(--ink-muted); }
footer { border-top: 1px solid var(--line); }

@media (max-width: 1080px) {
  .tests { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-grid { gap: 40px; }
  .float-score { left: -12px; }
}
@media (max-width: 900px) {
  .top nav, .link-signin { display: none; }
  .hero { padding: 48px 0 56px; }
  .hero-grid, .free-grid, .faq-wrap, .modes { grid-template-columns: 1fr; gap: 40px; }
  .features, .steps { grid-template-columns: 1fr; }
  .facts-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts-grid > div { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); }
  .facts-grid > div:nth-child(-n+2) { border-top: 0; }
  .band { padding: 72px 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .float-score { left: 12px; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .top .wrap { gap: 10px; height: 62px; }
  .wordmark { font-size: 21px; }
  .lead { font-size: 18px; }
  .hero-actions, .hero-actions .btn { width: 100%; }
  .tests { grid-template-columns: 1fr; }
  .app-body { grid-template-columns: 1fr; }
  .app-passage { border-right: 0; border-bottom: 1px solid var(--line); }
  .app-head .sw:last-child { display: none; }
  .app-rail { display: none; }
  .hero-visual { padding-bottom: 0; display: flex; flex-direction: column; }
  .float-score { position: relative; left: 0; margin: -20px 0 0 16px; min-width: 0; align-self: flex-start; }
  .mode { padding: 24px; }
  .mode h3 { font-size: 26px; }
  .faq summary { font-size: 16px; }
  .final { padding: 72px 0; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: 1ms !important; animation-duration: 1ms !important; }
}