/* ============== CORTEXA — themes ============== */
:root {
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --radius-card: 22px;
  --radius-btn: 12px;
  --radius-pill: 999px;
}
html[data-theme="dark"] {
  --bg-0: #0A0608;
  --bg-1: #120A0C;
  --bg-2: #1A0E11;
  --card: rgba(20, 12, 14, 0.7);
  --card-solid: #140C0E;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #FFFFFF;
  --text-dim: #9CA3AF;
  --text-muted: #6B7280;
  --content-text: #C7CACE;
  --accent: #E63946;
  --accent-bright: #FF3B47;
  --accent-deep: #7A0E1A;
  --accent-grad: linear-gradient(135deg, #7A0E1A 0%, #FF3B47 100%);
  --shadow-card: 0 1px 0 rgba(255,255,255,0.04) inset, 0 30px 60px -20px rgba(0,0,0,0.6);
  --hero-glow-1: rgba(230,57,70,0.18);
  --hero-glow-2: rgba(122,14,26,0.15);
  --noise-opacity: 0.5;
  --skeleton-a: rgba(255,255,255,0.04);
  --skeleton-b: rgba(255,255,255,0.08);
  --pill-active-bg: #FFFFFF;
  --pill-active-fg: #0A0608;
}
html[data-theme="light"] {
  --bg-0: #FAFAF8;
  --bg-1: #FFFFFF;
  --bg-2: #F2EFEC;
  --card: rgba(255, 255, 255, 0.92);
  --card-solid: #FFFFFF;
  --border: rgba(10, 6, 8, 0.08);
  --border-strong: rgba(10, 6, 8, 0.18);
  --text: #0A0608;
  --text-dim: #4B5563;
  --text-muted: #6B7280;
  --content-text: #2A2226;
  --accent: #C72A37;
  --accent-bright: #E63946;
  --accent-deep: #7A0E1A;
  --accent-grad: linear-gradient(135deg, #C72A37 0%, #FF3B47 100%);
  --shadow-card: 0 1px 0 rgba(255,255,255,0.7) inset, 0 20px 40px -20px rgba(122,14,26,0.18);
  --hero-glow-1: rgba(230,57,70,0.12);
  --hero-glow-2: rgba(122,14,26,0.08);
  --noise-opacity: 0.18;
  --skeleton-a: rgba(10,6,8,0.04);
  --skeleton-b: rgba(10,6,8,0.08);
  --pill-active-bg: #0A0608;
  --pill-active-fg: #FFFFFF;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg-0); color: var(--text); font-family: var(--font-body); -webkit-font-smoothing: antialiased; }

/* Smooth theme switching — only animate the elements that change with theme.
   Avoid universal selector — it tanks performance. */
html, body,
.header, .nav, .switcher, .switcher button,
.card, .stat-card, .ad-slot, .option, .question-image,
.btn-outline, .btn-ghost, .badge, .iq-level,
.faq-q .icon, .progress-bar, .progress-track,
.cookie-banner, .footer, .footer-col a,
.bd-card, .big-cta, .testimonial, .step, .category {
  transition: background-color .45s cubic-bezier(0.22, 1, 0.36, 1),
              border-color .45s cubic-bezier(0.22, 1, 0.36, 1),
              color .45s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow .45s cubic-bezier(0.22, 1, 0.36, 1);
}
/* Suspend transitions during the very first paint to avoid theme flash */
html.no-anim, html.no-anim * { transition: none !important; }
body {
  font-size: 16px; line-height: 1.6;
  background:
    radial-gradient(1200px 600px at 80% -10%, var(--hero-glow-1), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, var(--hero-glow-2), transparent 60%),
    var(--bg-0);
  min-height: 100vh; position: relative; overflow-x: hidden;
}
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 1;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.06 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: var(--noise-opacity); mix-blend-mode: overlay;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.02em; line-height: 1.05; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 28px; position: relative; z-index: 2; }

/* ============== HEADER ============== */
.header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg-0) 60%, transparent);
  border-bottom: 1px solid transparent; transition: border-color .3s, background .3s;
}
.header.scrolled { border-bottom-color: var(--border); background: color-mix(in srgb, var(--bg-0) 90%, transparent); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 20px; letter-spacing: -0.02em; }
.logo-mark { width: 30px; height: 30px; }
.logo-mark img, .logo-mark svg { width: 100%; height: 100%; display: block; border-radius: 8px; }

.nav { display: flex; align-items: center; gap: 4px; padding: 5px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-pill); position: relative; }
.nav-pill { position: absolute; top: 5px; height: calc(100% - 10px); background: var(--pill-active-bg); border-radius: var(--radius-pill); transition: left .55s cubic-bezier(0.22, 1, 0.36, 1), width .55s cubic-bezier(0.22, 1, 0.36, 1), opacity .25s, background-color .45s ease; z-index: 0; pointer-events: none; box-shadow: 0 2px 8px -2px rgba(0,0,0,0.15); will-change: left, width; }
.nav a { padding: 8px 14px; border-radius: var(--radius-pill); font-size: 13px; color: var(--text-dim); transition: color .55s cubic-bezier(0.22, 1, 0.36, 1); white-space: nowrap; position: relative; z-index: 1; }
.nav a:hover { color: var(--text); }
.nav a.active { color: var(--pill-active-fg); font-weight: 500; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
.header-cta-wrap { display: flex; gap: 10px; align-items: center; }

/* lang & theme switchers */
.switcher { display: inline-flex; gap: 2px; padding: 4px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-pill); }
.switcher button { padding: 6px 10px; font-size: 12px; border-radius: var(--radius-pill); color: var(--text-dim); transition: all .2s; display: inline-flex; align-items: center; justify-content: center; min-width: 32px; }
.switcher button:hover { color: var(--text); }
.switcher button.active { background: var(--pill-active-bg); color: var(--pill-active-fg); }
.switcher button svg { width: 14px !important; height: 14px !important; display: block; }

@media (max-width: 1100px) {
  .nav { display: none; }
}
@media (max-width: 700px) {
  .switcher-lang { display: none; }
  .header-cta-wrap .btn { padding: 10px 14px; font-size: 13px; }
}

/* ============== BUTTONS ============== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 14px 22px; border-radius: var(--radius-pill); font-size: 14px; font-weight: 500; transition: transform .15s ease, box-shadow .25s ease, background .25s; cursor: pointer; white-space: nowrap; border: 1px solid transparent; }
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--accent-grad); color: white; box-shadow: 0 10px 30px -10px rgba(255,59,71,0.6), inset 0 1px 0 rgba(255,255,255,0.25); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 18px 40px -12px rgba(255,59,71,0.8), inset 0 1px 0 rgba(255,255,255,0.3); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--border-strong); }
.btn-outline:hover { background: color-mix(in srgb, var(--text) 6%, transparent); }
.btn-ghost { color: var(--text-dim); padding: 10px 14px; }
.btn-ghost:hover { color: var(--text); }
.btn-lg { padding: 18px 30px; font-size: 16px; }

/* ============== BADGE ============== */
.badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: var(--radius-pill); background: color-mix(in srgb, var(--accent) 12%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); font-size: 13px; color: var(--accent-bright); }
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-bright); box-shadow: 0 0 10px var(--accent-bright); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity:1; transform:scale(1);} 50% { opacity:0.4; transform:scale(1.4);} }

/* ============== CARD ============== */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 28px; box-shadow: var(--shadow-card); transition: border-color .3s, transform .3s, box-shadow .3s; position: relative; overflow: hidden; }
.card:hover { border-color: color-mix(in srgb, var(--accent) 35%, transparent); transform: translateY(-3px); box-shadow: var(--shadow-card), 0 0 50px -20px color-mix(in srgb, var(--accent) 40%, transparent); }
.card-glow::before { content: ""; position: absolute; inset: -1px; border-radius: var(--radius-card); padding: 1px; background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 40%, transparent), transparent 50%); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none; opacity: 0; transition: opacity .3s; }
.card-glow:hover::before { opacity: 1; }

/* ============== HERO ============== */
.hero { padding: 70px 0 90px; position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 60px; align-items: center; }
.hero h1 { font-size: clamp(36px, 5.4vw, 72px); margin: 24px 0 20px; padding-bottom: 0.12em; }
.hero-title .hero-line { display: block; }
.hero h1 .grad {
  background: linear-gradient(135deg, #FF6B72 0%, #E63946 50%, #7A0E1A 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-style: italic;
  display: inline-block;
  padding: 0 0.22em 0 0.06em;   /* extra right padding so italic Q tail isn't clipped */
  line-height: inherit;
}
.hero-sub { font-size: 19px; color: var(--text-dim); max-width: 520px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 50px; }
.stat-card { padding: 22px; border-radius: 18px; background: var(--card); border: 1px solid var(--border); }
.stat-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 10px; }
.stat-value { font-family: var(--font-display); font-size: 32px; font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.stat-value .accent { color: var(--accent-bright); }

.hero-visual { position: relative; aspect-ratio: 1; max-width: 560px; justify-self: end; width: 100%; }
.brain-stage { position: absolute; inset: 0; }
.brain-glow { position: absolute; inset: -10%; background: radial-gradient(circle at 50% 50%, rgba(255,59,71,0.45) 0%, rgba(122,14,26,0.25) 30%, transparent 65%); filter: blur(40px); animation: breathe 4s ease-in-out infinite; }
@keyframes breathe { 0%,100% { opacity: 0.7; transform: scale(1);} 50% { opacity: 1; transform: scale(1.05);} }
@keyframes orbitA { to { transform: rotate(360deg); } }

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero-visual { order: -1; max-width: 420px; justify-self: center; }
  .hero { padding: 40px 0 60px; }
  .hero-stats { grid-template-columns: 1fr; }
}

/* ============== SECTIONS ============== */
.section { padding: 90px 0; position: relative; }
.section-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.section-eyebrow { display: inline-flex; gap: 8px; align-items: center; font-size: 13px; color: var(--accent-bright); text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 16px; font-weight: 500; }
.section-eyebrow::before { content: ""; width: 24px; height: 1px; background: var(--accent); }
.section-title { font-size: clamp(32px, 4.5vw, 52px); margin-bottom: 16px; }
.section-sub { font-size: 17px; color: var(--text-dim); }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step { padding: 32px; min-height: 240px; }
.step-num { font-family: var(--font-display); font-size: 14px; color: var(--accent-bright); margin-bottom: 22px; display: flex; align-items: center; gap: 10px; }
.step-num::before { content: ""; width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.step h3 { font-size: 22px; margin-bottom: 10px; }
.step p { color: var(--text-dim); font-size: 15px; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }

.categories { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.category { padding: 28px; min-height: 220px; display: flex; flex-direction: column; justify-content: space-between; }
.category-icon { width: 48px; height: 48px; border-radius: 12px; background: color-mix(in srgb, var(--accent) 14%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); display: grid; place-items: center; color: var(--accent-bright); margin-bottom: 18px; }
.category h3 { font-size: 20px; margin-bottom: 8px; }
.category p { color: var(--text-dim); font-size: 14px; }
@media (max-width: 900px) { .categories { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .categories { grid-template-columns: 1fr; } }

/* ============== AD SLOT ============== */
.ad-slot { position: relative; border: 1px solid var(--border); border-radius: 16px; background: var(--card); padding: 18px 20px; min-height: 100px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.ad-slot::before { content: attr(data-ad-label); position: absolute; top: 8px; right: 14px; font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.12em; }
html[lang="en"] .ad-slot::before { content: "Ad"; }
html[lang="ru"] .ad-slot::before { content: "Реклама"; }
.ad-skeleton { width: 100%; height: 60px; border-radius: 10px; background: linear-gradient(90deg, var(--skeleton-a) 25%, var(--skeleton-b) 50%, var(--skeleton-a) 75%); background-size: 200% 100%; animation: shimmer 1.8s linear infinite; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.ad-leaderboard { min-height: 110px; }
.ad-rectangle { min-height: 250px; max-width: 360px; margin: 0 auto; }
.ad-vertical { min-height: 600px; width: 200px; }
.ad-inline { min-height: 90px; max-width: 760px; margin: 16px auto; }

/* Sticky side ads for desktop test/result pages */
.ad-sidebar { position: fixed; top: 110px; width: 200px; z-index: 5; }
.ad-sidebar-left { left: 24px; }
.ad-sidebar-right { right: 24px; }
.ad-sidebar .ad-slot { background: var(--card); }
@media (max-width: 1480px) { .ad-sidebar { display: none; } }

/* ============== BIG CTA ============== */
.big-cta { padding: 90px 40px; border-radius: 28px; background: radial-gradient(circle at 50% 100%, color-mix(in srgb, var(--accent) 25%, transparent), transparent 60%), var(--card); border: 1px solid var(--border); text-align: center; position: relative; overflow: hidden; }
.big-cta h2 { font-size: clamp(36px, 5vw, 60px); margin-bottom: 16px; position: relative; }
.big-cta p { color: var(--text-dim); font-size: 17px; max-width: 540px; margin: 0 auto 36px; position: relative; }

.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.testimonial { padding: 28px; }
.testimonial-quote { font-size: 16px; line-height: 1.55; color: var(--text); margin-bottom: 22px; }
.testimonial-quote::before { content: "\201C"; display: block; font-family: var(--font-display); font-size: 50px; line-height: 0.6; color: var(--accent); margin-bottom: 12px; }
.testimonial-meta { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--accent-grad); color: #fff; display: grid; place-items: center; font-weight: 600; font-family: var(--font-display); }
.testimonial-name { font-weight: 500; font-size: 14px; }
.testimonial-role { font-size: 13px; color: var(--text-muted); }
@media (max-width: 880px) { .testimonials { grid-template-columns: 1fr; } }

.logos { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 28px 0; opacity: 0.5; flex-wrap: wrap; }
.logos span { font-family: var(--font-display); font-weight: 600; font-size: 20px; letter-spacing: -0.02em; color: var(--text-dim); }
.logos .label { font-size: 13px; opacity: 0.8; max-width: 140px; line-height: 1.3; font-family: var(--font-body); font-weight: 400; }

.faq { max-width: 780px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); padding: 22px 0; }
.faq-q { display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-size: 18px; font-weight: 500; gap: 16px; }
.faq-q .icon { width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--border-strong); display: grid; place-items: center; flex-shrink: 0; transition: transform .3s, background .3s, border-color .3s, color .3s; }
.faq-item.open .faq-q .icon { transform: rotate(45deg); background: var(--accent); border-color: var(--accent); color: #fff; }
.faq-a { height: 0; overflow: hidden; opacity: 0; color: var(--text-dim); font-size: 15px;
  transition: height .45s cubic-bezier(0.22, 1, 0.36, 1),
              margin-top .45s cubic-bezier(0.22, 1, 0.36, 1),
              opacity .3s ease .05s; }
.faq-item.open .faq-a { margin-top: 14px; opacity: 1; }
.faq-q { user-select: none; }

.footer { border-top: 1px solid var(--border); padding: 70px 0 30px; margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer-brand p { color: var(--text-dim); margin-top: 14px; max-width: 280px; font-size: 14px; }
.footer-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-muted); margin-bottom: 16px; font-weight: 500; }
.footer-col a { display: block; padding: 6px 0; color: var(--text-dim); font-size: 14px; transition: color .2s; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 24px; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 13px; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-bottom { flex-direction: column; gap: 12px; } }

.cookie-banner { position: fixed; bottom: 20px; left: 20px; right: 20px; max-width: 540px; margin: 0 auto; background: var(--card); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid var(--border-strong); border-radius: 18px; padding: 22px; box-shadow: 0 30px 80px -20px rgba(0,0,0,0.4); z-index: 200; transform: translateY(calc(100% + 40px)); transition: transform .5s cubic-bezier(0.16, 1, 0.3, 1); }
.cookie-banner.show { transform: translateY(0); }
.cookie-banner h4 { font-size: 16px; margin-bottom: 8px; }
.cookie-banner p { font-size: 13px; color: var(--text-dim); margin-bottom: 16px; line-height: 1.5; }
.cookie-banner p a { color: var(--accent-bright); text-decoration: underline; }
.cookie-banner-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.cookie-banner .btn { padding: 10px 18px; font-size: 13px; }

/* ============== TEST PAGE ============== */
.test-shell { min-height: 100vh; display: flex; flex-direction: column; }
.progress-bar { position: sticky; top: 72px; z-index: 30; background: color-mix(in srgb, var(--bg-0) 85%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid var(--border); padding: 18px 0; }
.progress-bar-inner { display: flex; align-items: center; gap: 20px; }
.progress-track { flex: 1; height: 6px; background: color-mix(in srgb, var(--text) 8%, transparent); border-radius: 999px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent-grad); border-radius: 999px; transition: width .5s cubic-bezier(0.16, 1, 0.3, 1); box-shadow: 0 0 10px rgba(255,59,71,0.6); }
.progress-counter { font-family: var(--font-display); font-size: 14px; color: var(--text-dim); font-variant-numeric: tabular-nums; white-space: nowrap; }
.progress-counter b { color: var(--text); font-weight: 600; }

.question-area { flex: 1; padding: 60px 0 100px; }
.question-card { max-width: 760px; margin: 0 auto; }
.question-cat { font-size: 12px; color: var(--accent-bright); text-transform: uppercase; letter-spacing: 0.16em; margin-bottom: 20px; }
.question-text { font-family: var(--font-display); font-size: clamp(26px, 3.5vw, 36px); line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 28px; }
.question-image { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 24px; margin-bottom: 28px; display: grid; place-items: center; color: var(--text); min-height: 180px; }
.question-image svg { max-width: 100%; max-height: 240px; height: auto; }

.options { display: grid; gap: 12px; }
.option { display: flex; align-items: center; gap: 16px; padding: 20px 22px; background: var(--card); border: 1px solid var(--border); border-radius: 16px; cursor: pointer; text-align: left; font-size: 17px; transition: all .2s ease; color: var(--text); }
.option:hover { border-color: var(--border-strong); background: color-mix(in srgb, var(--text) 5%, var(--card)); }
.option .marker { width: 26px; height: 26px; border-radius: 50%; border: 1.5px solid var(--border-strong); display: grid; place-items: center; flex-shrink: 0; transition: all .2s; font-size: 12px; font-weight: 600; color: var(--text-dim); font-family: var(--font-display); }
.option.selected { background: color-mix(in srgb, var(--accent) 12%, transparent); border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 0 30px -8px color-mix(in srgb, var(--accent) 50%, transparent); }
.option.selected .marker { background: var(--accent); border-color: var(--accent); color: #fff; }

.test-actions { max-width: 760px; margin: 36px auto 0; display: flex; justify-content: space-between; gap: 12px; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

.q-anim-enter { animation: qSlideIn .45s cubic-bezier(0.16, 1, 0.3, 1) both; }
@keyframes qSlideIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }

/* ============== RESULT PAGE ============== */
.result-wrap { padding: 70px 0; }
.iq-display { text-align: center; margin: 40px 0 50px; }
.iq-number { font-family: var(--font-display); font-size: clamp(120px, 22vw, 220px); font-weight: 700; line-height: 1; letter-spacing: -0.04em; background: linear-gradient(180deg, var(--text) 0%, #FF6B72 60%, #7A0E1A 100%); -webkit-background-clip: text; background-clip: text; color: transparent; font-variant-numeric: tabular-nums; padding-bottom: 0.05em; }
.iq-level { display: inline-flex; padding: 8px 20px; border-radius: 999px; background: color-mix(in srgb, var(--accent) 14%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); color: var(--accent-bright); font-size: 14px; font-weight: 500; margin-bottom: 18px; }
.iq-desc { color: var(--text-dim); max-width: 520px; margin: 0 auto; font-size: 17px; }

.breakdown { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 50px 0; }
.bd-card { padding: 22px; }
.bd-cat { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 12px; }
.bd-bar { height: 6px; background: color-mix(in srgb, var(--text) 8%, transparent); border-radius: 999px; margin: 14px 0 10px; overflow: hidden; }
.bd-fill { height: 100%; background: var(--accent-grad); border-radius: 999px; transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1); }
.bd-score { font-family: var(--font-display); font-size: 22px; font-weight: 600; }
.bd-score small { font-size: 14px; color: var(--text-dim); font-weight: 400; }
@media (max-width: 700px) { .breakdown { grid-template-columns: repeat(2, 1fr); } }

.result-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }

/* ============== ANSWER REVIEW ============== */
.review-section { margin-top: 60px; }
.review-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.review-list { display: flex; flex-direction: column; gap: 16px; }
.review-list[hidden] { display: none; }

.rv-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 24px; position: relative; overflow: hidden; box-shadow: var(--shadow-card); }
.rv-item.rv-ok { border-left: 3px solid #34D399; }
.rv-item.rv-bad { border-left: 3px solid var(--accent); }
.rv-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; font-size: 13px; }
.rv-num { width: 28px; height: 28px; border-radius: 50%; background: color-mix(in srgb, var(--text) 8%, transparent); display: grid; place-items: center; font-family: var(--font-display); font-weight: 600; font-size: 13px; flex-shrink: 0; }
.rv-cat { color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.08em; font-size: 11px; flex: 1; }
.rv-mark { font-size: 22px; line-height: 1; font-weight: 700; }
.rv-item.rv-ok .rv-mark { color: #34D399; }
.rv-item.rv-bad .rv-mark { color: var(--accent-bright); }
.rv-question { font-family: var(--font-display); font-size: 18px; line-height: 1.3; margin-bottom: 14px; letter-spacing: -0.01em; }
.rv-image { background: color-mix(in srgb, var(--text) 4%, transparent); border: 1px solid var(--border); border-radius: 12px; padding: 16px; margin-bottom: 14px; display: grid; place-items: center; min-height: 100px; color: var(--text); }
.rv-image svg { max-width: 100%; max-height: 220px; height: auto; }
.rv-options { list-style: none; padding: 0; margin: 0 0 14px; display: flex; flex-direction: column; gap: 6px; }
.rv-opt { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-radius: 10px; background: color-mix(in srgb, var(--text) 4%, transparent); border: 1px solid transparent; font-size: 14px; color: var(--text-dim); }
.rv-opt.rv-correct { background: color-mix(in srgb, #34D399 14%, transparent); border-color: color-mix(in srgb, #34D399 40%, transparent); color: var(--text); }
.rv-opt.rv-yours-ok { background: color-mix(in srgb, #34D399 22%, transparent); border-color: #34D399; color: var(--text); font-weight: 500; }
.rv-opt.rv-wrong { background: color-mix(in srgb, var(--accent) 14%, transparent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); color: var(--text); text-decoration: line-through; text-decoration-color: var(--accent); }
.rv-letter { width: 22px; height: 22px; border-radius: 50%; background: var(--card-solid); border: 1px solid var(--border-strong); display: grid; place-items: center; font-size: 11px; font-family: var(--font-display); font-weight: 600; flex-shrink: 0; }
.rv-answers { font-size: 13px; color: var(--text-dim); display: flex; flex-direction: column; gap: 6px; padding-top: 12px; border-top: 1px solid var(--border); }
.rv-answers b { color: var(--text); font-family: var(--font-display); }
.rv-label { color: var(--text-muted); }
.rv-explain { margin-top: 14px; padding: 14px 16px; border-radius: 12px; background: color-mix(in srgb, var(--accent) 8%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent); }
.rv-explain-label { display: inline-block; font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--accent-bright); font-weight: 600; margin-bottom: 6px; }
.rv-explain p { color: var(--text); font-size: 14px; line-height: 1.55; margin: 0; }
@media (max-width: 600px) {
  .review-head { flex-direction: column; align-items: stretch; }
  .rv-item { padding: 18px; }
  .rv-question { font-size: 16px; }
}

/* ============== CONTENT PAGES ============== */
.content-page { padding: 60px 0 90px; }
.content-page .container { max-width: 800px; }
.content-page h1 { font-size: clamp(36px, 5vw, 56px); margin-bottom: 12px; padding-bottom: 0.1em; }
.content-page .lead { font-size: 17px; color: var(--text-dim); margin-bottom: 40px; }
.content-page h2 { font-size: 24px; margin: 40px 0 14px; }
.content-page h3 { font-size: 19px; margin: 26px 0 10px; }
.content-page p, .content-page li { color: var(--content-text); font-size: 16px; line-height: 1.7; margin-bottom: 12px; }
.content-page ul, .content-page ol { padding-left: 22px; margin-bottom: 16px; }
.content-page strong { color: var(--text); }
.content-page .meta { color: var(--text-muted); font-size: 13px; margin-bottom: 30px; }

.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 40px 0; }
@media (max-width: 700px) { .about-stats { grid-template-columns: 1fr; } }

.text-center { text-align: center; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s cubic-bezier(0.16, 1, 0.3, 1), transform .8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}