/* =========================================
   KI Training Review — responsive CSS
   ========================================= */
:root {
  --blue: #2478d1;
  --blue-dark: #1358a3;
  --blue-soft: #eaf4ff;
  --ink: #122033;
  --muted: #5f6f82;
  --line: #dfe7f0;
  --surface: #ffffff;
  --surface-alt: #f5f8fc;
  --green: #18a673;
  --amber: #f0a51a;
  --shadow: 0 18px 50px rgba(18, 32, 51, .10);
  --radius: 20px;
  --max: 1120px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: var(--font);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
.container { width: min(var(--max), calc(100% - 32px)); margin-inline: auto; }
.narrow { width: min(820px, calc(100% - 32px)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -100px; z-index: 999; padding: 10px 14px; background: var(--ink); color: #fff; border-radius: 8px; }
.skip-link:focus { top: 12px; }
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(223,231,240,.8);
}
.header-inner { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; letter-spacing: -.02em; }
.brand small { display: block; color: var(--muted); font-size: .68rem; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 11px; color: #fff; background: linear-gradient(135deg, var(--blue), #56a8f3); font-size: .75rem; box-shadow: 0 8px 18px rgba(36,120,209,.25); }
.menu-toggle { border: 1px solid var(--line); background: #fff; padding: 9px 12px; border-radius: 10px; font-weight: 700; cursor: pointer; }
.site-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 16px; background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
.site-nav.is-open { display: grid; gap: 8px; }
.site-nav a { padding: 11px 12px; text-decoration: none; font-weight: 700; border-radius: 10px; }
.site-nav a:hover { background: var(--surface-alt); }
.site-nav .nav-cta { color: #fff; background: var(--blue); text-align: center; }
.hero { overflow: hidden; padding: 54px 0 72px; background: radial-gradient(circle at 90% 10%, #dff0ff 0, transparent 32%), linear-gradient(180deg,#f7fbff 0%,#fff 100%); }
.hero-grid { display: grid; gap: 42px; align-items: center; }
.eyebrow, .kicker { margin: 0 0 12px; color: var(--blue-dark); font-size: .78rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.hero h1 { margin: 0; max-width: 760px; font-size: clamp(2.4rem, 8vw, 4.9rem); line-height: 1.03; letter-spacing: -.055em; }
.hero h1 span { color: var(--blue); }
.lead { max-width: 720px; margin: 22px 0; font-size: 1.12rem; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 50px; padding: 13px 19px; border-radius: 12px; font-weight: 850; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #fff; background: linear-gradient(135deg,var(--blue),#3d94e7); box-shadow: 0 12px 25px rgba(36,120,209,.25); }
.btn-primary:hover { box-shadow: 0 15px 30px rgba(36,120,209,.32); }
.btn-light { color: var(--blue-dark); background: #fff; }
.text-link { font-weight: 800; text-underline-offset: 4px; }
.microcopy { color: var(--muted); font-size: .88rem; }
.hero-media { margin: 0; justify-self: center; max-width: 430px; }
.hero-media img { width: 100%; border-radius: 22px; box-shadow: var(--shadow); border: 8px solid #fff; }
figcaption { margin-top: 9px; color: var(--muted); font-size: .76rem; text-align: center; }
.section { padding: 76px 0; }
.section-alt { background: var(--surface-alt); }
.section-heading { max-width: 780px; margin-bottom: 32px; }
.section-heading h2, .two-col h2, .callout h2, .price-card h2, .final-cta h2 { margin: 0 0 14px; font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.1; letter-spacing: -.035em; }
.section-heading > p:last-child { color: var(--muted); margin-bottom: 0; }
.verdict-grid { display: grid; gap: 20px; }
.score-card, .quick-summary, .feature-card, .info-card, .quote-card, .price-card, .pc-card { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 10px 35px rgba(18,32,51,.06); }
.score-card { padding: 26px; background: linear-gradient(145deg,#fff,#f1f8ff); }
.score-label { color: var(--muted); font-size: .8rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.score { display: block; margin: 7px 0; font-size: 4.5rem; line-height: 1; letter-spacing: -.06em; color: var(--blue-dark); }
.score span { font-size: 1.25rem; color: var(--muted); letter-spacing: 0; }
.score-card p { color: var(--muted); }
.badge { display: inline-flex; padding: 7px 10px; border-radius: 999px; background: #e6f8f0; color: #087a54; font-size: .78rem; font-weight: 800; }
.quick-summary { padding: 26px; }
.quick-summary h3 { margin-top: 0; font-size: 1.25rem; }
.check-list, .pc-card ul { padding: 0; margin: 0; list-style: none; }
.check-list li { padding: 10px 0 10px 27px; border-bottom: 1px solid var(--line); position: relative; }
.check-list li:last-child { border-bottom: 0; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 900; }
.feature-grid { display: grid; gap: 16px; }
.feature-card { padding: 24px; }
.icon { display: inline-grid; place-items: center; width: 42px; height: 42px; margin-bottom: 17px; border-radius: 12px; background: var(--blue-soft); color: var(--blue-dark); font-weight: 900; }
.feature-card h3 { margin: 0 0 8px; font-size: 1.15rem; }
.feature-card p { margin: 0; color: var(--muted); }
.two-col { display: grid; gap: 38px; align-items: start; }
.two-col > div > p { color: var(--muted); }
.info-card { padding: 24px; }
.info-card h3 { margin-top: 0; }
.info-card dl { margin: 0; }
.info-card dl div { padding: 13px 0; border-bottom: 1px solid var(--line); }
.info-card dl div:last-child { border-bottom: 0; }
.info-card dt { color: var(--muted); font-size: .8rem; font-weight: 800; text-transform: uppercase; }
.info-card dd { margin: 2px 0 0; font-weight: 700; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 10px 35px rgba(18,32,51,.05); }
table { width: 100%; min-width: 640px; border-collapse: collapse; }
th, td { padding: 15px 17px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #f0f6fc; font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; }
tr:last-child td { border-bottom: 0; }
.pros-cons { display: grid; gap: 18px; }
.pc-card { padding: 26px; }
.pc-card h2 { margin-top: 0; font-size: 1.4rem; }
.pc-card li { padding: 10px 0 10px 28px; position: relative; border-bottom: 1px solid var(--line); }
.pc-card li:last-child { border-bottom: 0; }
.pro li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 900; }
.con li::before { content: "×"; position: absolute; left: 0; color: #d36b38; font-weight: 900; }
.callout { background: linear-gradient(135deg,#0f5da9,#2478d1); color: #fff; }
.callout .kicker { color: #cfe8ff; }
.callout-inner { display: flex; flex-direction: column; gap: 24px; align-items: flex-start; }
.callout p { max-width: 760px; color: #eaf5ff; }
.media-frame { overflow: hidden; border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
.media-frame img { width: 100%; }
.quote-card { padding: 30px; }
.quote { margin: 0; font-size: 1.2rem; font-weight: 750; letter-spacing: -.01em; }
.quote-note { margin-bottom: 0; color: var(--muted); font-size: .88rem; }
.notice { margin-top: 16px; padding: 16px 18px; border-left: 4px solid var(--amber); background: #fff9eb; color: #72520c; border-radius: 10px; }
.price-card { display: grid; gap: 28px; padding: 28px; }
.price-box { padding: 24px; border-radius: 16px; background: var(--blue-soft); }
.price-box span, .price-box small { display: block; color: var(--muted); }
.price-box strong { display: block; margin: 2px 0 6px; color: var(--blue-dark); font-size: 3.5rem; line-height: 1; }
.price-box .btn { width: 100%; margin-top: 16px; text-align: center; }
.faq-list details { border-bottom: 1px solid var(--line); background: #fff; }
.faq-list details:first-child { border-radius: 16px 16px 0 0; }
.faq-list details:last-child { border-radius: 0 0 16px 16px; }
.faq-list summary { padding: 20px; cursor: pointer; list-style: none; font-weight: 850; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; float: right; color: var(--blue); font-size: 1.4rem; line-height: 1; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: 0; padding: 0 20px 20px; color: var(--muted); }
.final-cta { padding: 76px 0; color: #fff; text-align: center; background: linear-gradient(135deg,#102b47,#1358a3); }
.final-cta .eyebrow { color: #bfe1ff; }
.final-cta h2 { max-width: 780px; margin-inline: auto; }
.final-cta p { max-width: 650px; margin: 0 auto 22px; color: #e1efff; }
.final-cta small { display: block; max-width: 780px; margin: 18px auto 0; color: #c6d9ec; }
.site-footer { padding: 46px 0 20px; color: #b8c7d7; background: #0b1724; }
.footer-grid { display: grid; gap: 28px; }
.footer-grid strong { color: #fff; }
.footer-grid p { margin-bottom: 0; font-size: .88rem; }
.site-footer a { color: #d9ebff; text-underline-offset: 3px; }
.footer-bottom { display: flex; flex-direction: column; gap: 5px; margin-top: 34px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); font-size: .78rem; }

@media (min-width: 720px) {
  .container { width: min(var(--max), calc(100% - 48px)); }
  .hero { padding: 78px 0 96px; }
  .hero-grid { grid-template-columns: minmax(0,1.25fr) minmax(280px,.75fr); }
  .hero-media { max-width: 360px; }
  .verdict-grid { grid-template-columns: .75fr 1.25fr; }
  .feature-grid { grid-template-columns: repeat(2,1fr); }
  .pros-cons { grid-template-columns: 1fr 1fr; }
  .callout-inner { flex-direction: row; align-items: center; justify-content: space-between; }
  .price-card { grid-template-columns: 1.4fr .6fr; align-items: center; padding: 38px; }
  .footer-grid { grid-template-columns: 1.2fr 1fr 1.4fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}
@media (min-width: 980px) {
  .menu-toggle { display: none; }
  .site-nav { position: static; display: flex; align-items: center; gap: 4px; padding: 0; background: transparent; border: 0; box-shadow: none; }
  .site-nav a { padding: 9px 10px; font-size: .9rem; }
  .site-nav .nav-cta { padding-inline: 14px; }
  .two-col { grid-template-columns: 1.2fr .8fr; }
  .feature-grid { grid-template-columns: repeat(4,1fr); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}