/* ==========================================================================
   IKO Kursy — Interaktywne Kursy Online
   Design system: nowoczesny EdTech / SaaS, paleta niebiesko-neutralna
   ========================================================================== */

:root {
  --navy-950: #0a1730;
  --navy-900: #0f1f3d;
  --navy-800: #16294f;
  --blue-700: #1d4ed8;
  --blue-600: #2563eb;
  --blue-500: #3b82f6;
  --blue-100: #dbeafe;
  --blue-50: #eff6ff;
  --sky: #38bdf8;
  --bg: #f6f8fc;
  --paper: #ffffff;
  --ink: #101828;
  --ink-soft: #475467;
  --line: #e4eaf3;
  --green-ok: #15803d;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 3px rgba(16, 24, 40, 0.07);
  --shadow-md: 0 12px 32px rgba(15, 31, 61, 0.10);
  --shadow-lg: 0 24px 64px rgba(10, 23, 48, 0.22);
  --font-display: "Sora", "Inter", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
  --maxw: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; height: auto; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--navy-900);
  margin: 0 0 0.6em;
  text-wrap: balance;
  letter-spacing: -0.015em;
}
h1 { font-size: clamp(2.1rem, 4.6vw, 3.3rem); }
h2 { font-size: clamp(1.55rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); }
p { margin: 0 0 1.1em; }
a { color: var(--blue-600); text-decoration-color: rgba(37, 99, 235, 0.35); text-underline-offset: 3px; }
a:hover { color: var(--blue-500); }
ul, ol { padding-left: 1.3em; margin: 0 0 1.2em; }
li { margin-bottom: 0.45em; }
strong { color: var(--navy-900); }
code {
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 0.9em;
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: 6px;
  padding: 0.1em 0.4em;
}
pre {
  background: var(--navy-900);
  color: #dbeafe;
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.3rem;
  overflow-x: auto;
  font-size: 0.92rem;
  line-height: 1.55;
}
pre code { background: none; border: 0; padding: 0; color: inherit; }
::selection { background: var(--blue-600); color: #fff; }

:focus-visible { outline: 3px solid var(--blue-500); outline-offset: 2px; border-radius: 4px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--navy-900); color: #fff;
  padding: 0.7rem 1.2rem; border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; color: #fff; }

.container { width: min(var(--maxw), 100% - 2.5rem); margin-inline: auto; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(246, 248, 252, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 0.7rem; text-decoration: none; color: var(--navy-900); }
.brand-mark { width: 44px; height: 44px; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-family: var(--font-display); font-weight: 800; font-size: 1.3rem; }
.brand-name em { font-style: normal; color: var(--blue-600); }
.brand-tag { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--ink-soft); }

.main-nav ul { display: flex; align-items: center; gap: 0.35rem; list-style: none; margin: 0; padding: 0; }
.main-nav a {
  display: block; padding: 0.55rem 0.9rem; border-radius: 999px;
  text-decoration: none; color: var(--ink); font-weight: 500; font-size: 0.95rem;
  transition: background 0.2s ease, color 0.2s ease;
}
.main-nav a:hover { background: var(--blue-50); color: var(--blue-700); }
.main-nav a[aria-current="page"] { background: var(--blue-600); color: #fff; }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 0.5rem 0.7rem; cursor: pointer; color: var(--navy-900); font: inherit; font-weight: 600;
}
@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; align-items: center; gap: 0.5rem; }
  .main-nav {
    position: absolute; inset: 72px 0 auto 0; display: none;
    background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: var(--shadow-md);
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; align-items: stretch; padding: 0.8rem 1.25rem 1.2rem; gap: 0.2rem; }
  .main-nav a { padding: 0.75rem 1rem; border-radius: var(--radius-sm); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1.6rem; border-radius: 999px;
  font-weight: 600; font-size: 1rem; text-decoration: none;
  border: 2px solid transparent; cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
  color: #fff; box-shadow: 0 10px 24px rgba(37, 99, 235, 0.35);
}
.btn-primary:hover { color: #fff; box-shadow: 0 14px 30px rgba(37, 99, 235, 0.45); }
.btn-outline-light { border-color: rgba(255,255,255,0.55); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,0.12); color: #fff; }
.btn-outline-dark { border-color: var(--blue-600); color: var(--blue-700); }
.btn-outline-dark:hover { background: var(--blue-600); color: #fff; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(900px 480px at 85% -10%, rgba(56, 189, 248, 0.28), transparent 60%),
    radial-gradient(700px 500px at -10% 110%, rgba(37, 99, 235, 0.35), transparent 55%),
    linear-gradient(155deg, var(--navy-900), var(--navy-800) 55%, var(--navy-950));
  color: var(--blue-100);
  padding: clamp(4rem, 9vw, 7rem) 0;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,0.07) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(180deg, black, transparent 85%);
}
.hero .container { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--sky); border: 1px solid rgba(56, 189, 248, 0.45);
  border-radius: 999px; padding: 0.4rem 1rem; margin-bottom: 1.4rem;
}
.hero h1 { color: #fff; max-width: 20ch; }
.hero h1 .accent { color: var(--sky); }
.hero-lead { font-size: clamp(1.08rem, 1.6vw, 1.25rem); max-width: 58ch; color: #c7d7f5; margin-bottom: 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; }

/* ---------- Sections ---------- */
.section { padding: clamp(3.5rem, 7vw, 6rem) 0; }
.section-paper { background: var(--paper); }
.section-tint { background: linear-gradient(180deg, var(--blue-50), var(--bg)); }
.section-dark {
  background:
    radial-gradient(900px 420px at 90% 0%, rgba(56, 189, 248, 0.16), transparent 55%),
    linear-gradient(150deg, var(--navy-900), var(--navy-950));
  color: var(--blue-100);
}
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p { color: #c7d7f5; }

.section-head { max-width: 720px; margin-bottom: 2.6rem; }
.section-head.center { margin-inline: auto; text-align: center; }
.kicker {
  display: inline-block; font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--blue-600); margin-bottom: 0.8rem;
}
.section-dark .kicker { color: var(--sky); }
.lead { font-size: 1.13rem; color: var(--ink-soft); }
.section-dark .lead { color: #c7d7f5; }

/* ---------- Grids & cards ---------- */
.grid { display: grid; gap: 1.4rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.8rem; box-shadow: var(--shadow-sm); height: 100%;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--blue-100); }
.card h3 { margin-bottom: 0.5rem; }
.card p { color: var(--ink-soft); margin-bottom: 0.8rem; }
.card .more-link { font-weight: 600; text-decoration: none; }
.card .more-link::after { content: " →"; }

.icon-badge {
  width: 52px; height: 52px; display: grid; place-items: center;
  border-radius: 14px; margin-bottom: 1.1rem; color: var(--blue-600);
  background: linear-gradient(140deg, var(--blue-50), #f0f6ff);
  border: 1px solid var(--line);
}
.section-dark .icon-badge { background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.14); color: var(--sky); }

/* ---------- Course cards & meta ---------- */
.course-card { display: flex; flex-direction: column; }
.course-card h3 { margin-bottom: 0.4rem; }
.course-card .more-link { margin-top: auto; }
.badges { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-bottom: 0.9rem; }
.badge {
  font-size: 0.74rem; font-weight: 600; letter-spacing: 0.02em;
  padding: 0.25rem 0.75rem; border-radius: 999px;
  background: var(--blue-50); color: var(--blue-700); border: 1px solid var(--blue-100);
}
.badge-free { background: #ecfdf3; color: var(--green-ok); border-color: #bbf7d0; }
.badge-level { background: #f4f6fa; color: var(--ink-soft); border-color: var(--line); }

.course-meta {
  display: flex; flex-wrap: wrap; gap: 0.6rem 1.6rem; margin-top: 1.4rem;
  font-size: 0.95rem; color: var(--blue-100);
}
.course-meta span { display: inline-flex; align-items: center; gap: 0.45rem; }
.course-meta svg { flex: none; }

/* ---------- Filter bar (katalog kursów) ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 2rem; }
.filter-btn {
  font: inherit; font-weight: 600; font-size: 0.92rem; cursor: pointer;
  padding: 0.5rem 1.15rem; border-radius: 999px;
  border: 1px solid var(--line); background: var(--paper); color: var(--ink-soft);
  transition: all 0.18s ease;
}
.filter-btn:hover { border-color: var(--blue-500); color: var(--blue-700); }
.filter-btn.active { background: var(--blue-600); border-color: var(--blue-600); color: #fff; }
.course-card[hidden] { display: none; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; text-align: center; }
@media (max-width: 820px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat { padding: 1.4rem 1rem; border-radius: var(--radius); background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); }
.stat-value { display: block; font-family: var(--font-display); font-size: clamp(1.9rem, 3.4vw, 2.5rem); font-weight: 800; color: var(--sky); }
.stat-label { font-size: 0.92rem; color: #c7d7f5; }

/* ---------- Split ---------- */
.split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.split.reverse > .split-media { order: 2; }
@media (max-width: 880px) {
  .split { grid-template-columns: 1fr; }
  .split.reverse > .split-media { order: 0; }
}
.split-media { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-md); background: var(--navy-800); }
.split-media svg, .split-media img { display: block; width: 100%; height: auto; }

.checklist { list-style: none; padding: 0; margin: 0 0 1.4rem; }
.checklist li { position: relative; padding-left: 2rem; margin-bottom: 0.7rem; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: 0.3em;
  width: 1.15rem; height: 1.15rem; border-radius: 50%;
  background: var(--blue-600);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
  background-size: 0.65rem; background-position: center; background-repeat: no-repeat;
}

/* ---------- Modules (syllabus) ---------- */
.modules { list-style: none; margin: 0; padding: 0; counter-reset: mod; }
.modules li {
  position: relative; counter-increment: mod;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 1.1rem 1.3rem 1.1rem 4.2rem; margin-bottom: 0.8rem;
}
.modules li::before {
  content: counter(mod, decimal-leading-zero);
  position: absolute; left: 1.1rem; top: 1.05rem;
  font-family: var(--font-display); font-weight: 800; font-size: 1.05rem; color: var(--blue-600);
}
.modules h3 { margin-bottom: 0.25rem; font-size: 1.12rem; }
.modules p { margin: 0; color: var(--ink-soft); font-size: 0.97rem; }

/* ---------- Lesson navigation ---------- */
.lesson-nav {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  margin-top: 3rem; padding-top: 1.6rem; border-top: 1px solid var(--line);
}
.lesson-nav a {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 600; text-decoration: none;
  padding: 0.7rem 1.3rem; border-radius: 999px; border: 1px solid var(--line); background: var(--paper);
}
.lesson-nav a:hover { border-color: var(--blue-500); color: var(--blue-700); }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow-sm); margin: 1.6rem 0; }
table { width: 100%; border-collapse: collapse; background: var(--paper); font-size: 0.97rem; }
caption { text-align: left; padding: 0.9rem 1.2rem; font-weight: 600; color: var(--navy-900); background: var(--blue-50); }
th, td { padding: 0.85rem 1.2rem; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { background: var(--navy-900); color: #fff; font-weight: 600; white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:nth-child(even) { background: #f8fafd; }

/* ---------- Article / prose ---------- */
.article-hero {
  background:
    radial-gradient(800px 380px at 85% 0%, rgba(56, 189, 248, 0.18), transparent 60%),
    linear-gradient(160deg, var(--navy-900), var(--navy-800));
  color: var(--blue-100);
  padding: clamp(2.8rem, 6vw, 4.6rem) 0;
}
.article-hero h1 { color: #fff; max-width: 24ch; }
.article-hero .lead { color: #c7d7f5; max-width: 62ch; margin-bottom: 0; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 0.4rem; list-style: none; padding: 0; margin: 0 0 1.2rem; font-size: 0.85rem; }
.breadcrumb li { margin: 0; display: flex; align-items: center; gap: 0.4rem; }
.breadcrumb li + li::before { content: "/"; color: rgba(255,255,255,0.45); }
.breadcrumb a { color: var(--blue-100); text-decoration: none; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb [aria-current] { color: var(--sky); }
.article-meta { font-size: 0.88rem; color: #c7d7f5; margin-top: 1.1rem; }

.prose { max-width: 780px; }
.prose h2 { margin-top: 2.2em; }
.prose h3 { margin-top: 1.8em; }
.prose blockquote {
  margin: 1.8rem 0; padding: 1.2rem 1.6rem;
  border-left: 4px solid var(--blue-600); background: var(--paper);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink-soft); font-style: italic;
}
.prose .note {
  background: var(--blue-50); border: 1px solid var(--blue-100);
  border-radius: var(--radius); padding: 1.1rem 1.4rem; font-size: 0.97rem; margin: 1.8rem 0;
}
.exercise {
  background: #ecfdf3; border: 1px solid #bbf7d0; border-radius: var(--radius);
  padding: 1.1rem 1.4rem; margin: 1.8rem 0; font-size: 0.97rem;
}
.exercise strong { color: var(--green-ok); }

.article-card { display: flex; flex-direction: column; }
.article-card .card-tag { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--blue-600); margin-bottom: 0.6rem; }
.article-card .more-link { margin-top: auto; }

/* ---------- FAQ ---------- */
.faq details { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.05rem 1.4rem; margin-bottom: 0.9rem; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--navy-900); list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; color: var(--blue-600); transition: transform 0.2s ease; flex: none; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0.8rem 0 0.2rem; color: var(--ink-soft); }

/* ---------- Search ---------- */
.search-box { display: flex; gap: 0.7rem; max-width: 640px; margin: 0 0 2rem; }
.search-box input {
  flex: 1; font: inherit; padding: 0.85rem 1.2rem;
  border: 1px solid var(--line); border-radius: 999px; background: var(--paper);
}
.search-box input:focus { outline: 3px solid rgba(37,99,235,0.35); border-color: var(--blue-500); }
.search-result { display: block; text-decoration: none; margin-bottom: 0.9rem; }
.search-result h3 { margin-bottom: 0.2rem; }
.search-result .result-type { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--blue-600); }
.search-result p { margin: 0; }
.search-empty { color: var(--ink-soft); font-style: italic; }

/* ---------- CTA ---------- */
.cta-band {
  background:
    radial-gradient(700px 300px at 15% 100%, rgba(56, 189, 248, 0.2), transparent 60%),
    linear-gradient(140deg, var(--blue-700), var(--navy-950));
  border-radius: var(--radius); color: #fff; text-align: center;
  padding: clamp(2.2rem, 5vw, 3.6rem); box-shadow: var(--shadow-lg);
}
.cta-band h2 { color: #fff; }
.cta-band p { color: var(--blue-100); max-width: 56ch; margin-inline: auto; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-950); color: var(--blue-100); padding: 3.6rem 0 2rem; font-size: 0.95rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2.2rem; margin-bottom: 2.4rem; }
@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h2, .site-footer h3 {
  color: #fff; font-size: 0.85rem; font-family: var(--font-body);
  text-transform: uppercase; letter-spacing: 0.14em; margin-bottom: 1rem;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.5rem; }
.site-footer a { color: var(--blue-100); text-decoration: none; }
.site-footer a:hover { color: var(--sky); }
.footer-brand p { color: rgba(199, 215, 245, 0.75); max-width: 42ch; }
.footer-disclaimer {
  border: 1px solid rgba(255,255,255,0.14); background: rgba(255,255,255,0.04);
  border-radius: var(--radius); padding: 1.1rem 1.4rem;
  font-size: 0.86rem; color: rgba(199, 215, 245, 0.8); margin-bottom: 1.8rem;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1); padding-top: 1.4rem;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.6rem;
  font-size: 0.84rem; color: rgba(199, 215, 245, 0.6);
}

/* ---------- Cookie banner ---------- */
.cookie-banner {
  position: fixed; inset: auto 0 0 0; z-index: 300;
  background: rgba(10, 23, 48, 0.97); color: var(--blue-100);
  padding: 1.1rem 0; box-shadow: 0 -8px 30px rgba(0,0,0,0.35);
  transform: translateY(110%); transition: transform 0.35s ease;
}
.cookie-banner.visible { transform: translateY(0); }
.cookie-inner { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; }
.cookie-inner p { margin: 0; font-size: 0.92rem; flex: 1 1 420px; }
.cookie-inner a { color: var(--sky); }
.cookie-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.cookie-actions .btn { padding: 0.6rem 1.3rem; font-size: 0.92rem; }

/* ---------- Notices ---------- */
.notice-draft {
  background: #fffbeb; border: 1px dashed #b45309; border-radius: var(--radius);
  padding: 1rem 1.4rem; font-size: 0.92rem; color: #713f12; margin: 1.4rem 0;
}
.tag-list { display: flex; flex-wrap: wrap; gap: 0.5rem; list-style: none; padding: 0; margin: 0 0 1.4rem; }
.tag-list li { margin: 0; background: var(--blue-50); border: 1px solid var(--blue-100); border-radius: 999px; padding: 0.28rem 0.85rem; font-size: 0.85rem; color: var(--blue-700); }

/* ---------- 404 ---------- */
.error-hero { text-align: center; padding: clamp(4rem, 10vw, 8rem) 0; }
.error-code { font-family: var(--font-display); font-size: clamp(4rem, 12vw, 7rem); font-weight: 800; color: var(--blue-600); line-height: 1; margin-bottom: 0.5rem; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover { transform: none; }
}

@media print {
  .site-header, .site-footer, .cookie-banner, .hero-actions, .cta-band, .lesson-nav { display: none !important; }
  body { background: #fff; }
}