:root {
  --green: #0b6b2c;
  --green-dark: #074b20;
  --gold: #d8ad3e;
  --cream: #fff8e3;
  --ink: #20241f;
  --muted: #60675f;
  --line: #d9ded6;
  --soft: #f4f7f2;
  --white: #fff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; line-height: 1.6; }
img { display: block; max-width: 100%; }
a { color: var(--green-dark); }
.container { width: min(1120px, calc(100% - 40px)); margin: auto; }
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; }
.brand-logo { width: 56px; height: 56px; object-fit: cover; border-radius: 8px; }
.brand strong { display: block; font-size: 1.2rem; }
.brand small { display: block; color: var(--muted); }
nav { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; }
nav a { color: var(--ink); text-decoration: none; font-weight: 650; }
nav a:hover { color: var(--green); }
.lang-switch { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; background: var(--soft); }
.hero { padding: 58px 0; background: linear-gradient(135deg, var(--cream), #fff 60%); }
.hero-grid { display: grid; grid-template-columns: .9fr 1.25fr; gap: 46px; align-items: center; }
.eyebrow { color: var(--green); font-weight: 800; text-transform: uppercase; letter-spacing: .05em; }
h1 { margin: 0 0 18px; font-size: clamp(2.8rem, 7vw, 5.4rem); line-height: .98; }
h2 { margin: 0 0 22px; font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1.15; }
h3 { margin: 12px 0 8px; }
.lead { font-size: 1.15rem; }
.question { font-size: 1.05rem; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.button { display: inline-block; padding: 13px 20px; border-radius: 9px; text-decoration: none; font-weight: 750; }
.button.primary, .button.small { color: white; background: var(--green); }
.button.primary:hover, .button.small:hover { background: var(--green-dark); }
.button.secondary { background: #e8efe7; color: var(--green-dark); }
.button.small { padding: 10px 16px; }
.hero-figure { margin: 0; }
.hero-figure img { border: 1px solid #bbc4b7; border-radius: 14px; box-shadow: 0 18px 45px rgba(0,0,0,.16); }
.section { padding: 66px 0; }
.alt { background: var(--soft); }
.text-column { max-width: 820px; }
.card-gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 260px)); justify-content: center; gap: 24px; }
.card-gallery figure { margin: 0; background: white; padding: 12px; border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 12px 28px rgba(0,0,0,.08); }
.card-gallery img { width: 100%; border-radius: 8px; }
.card-gallery figcaption { display: flex; justify-content: space-between; gap: 12px; padding: 12px 4px 2px; }
.card-gallery figcaption span { color: var(--muted); }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 14px; }
.features div { padding: 17px 18px; background: white; border: 1px solid var(--line); border-left: 5px solid var(--gold); border-radius: 10px; }
.section-intro { max-width: 800px; }
.downloads { display: grid; grid-template-columns: repeat(auto-fit, minmax(235px, 1fr)); gap: 18px; margin-top: 26px; }
.downloads article { background: white; border: 1px solid var(--line); border-radius: 13px; padding: 22px; box-shadow: 0 8px 20px rgba(0,0,0,.05); }
.level { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: .82rem; font-weight: 800; }
.very-easy { background: #dff4e4; color: #1d6a32; }
.easy { background: #e9f1d6; color: #526517; }
.medium { background: #fff0c9; color: #765300; }
.hard { background: #f7dddd; color: #8a2929; }
.privacy-note { border-top: 1px solid var(--line); }
footer { border-top: 1px solid var(--line); padding: 24px 0; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 15px; color: var(--muted); }
.language-choice {
  min-height: 100vh; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--cream), white 60%);
}
.choice-card {
  width: min(640px, calc(100% - 40px));
  padding: 36px; border: 1px solid var(--line); border-radius: 18px;
  background: white; box-shadow: 0 18px 45px rgba(0,0,0,.12); text-align: center;
}
.choice-logo { width: 110px; margin: 0 auto 18px; border-radius: 14px; }
.choice-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .header-inner { align-items: flex-start; flex-direction: column; padding: 14px 0; }
  .site-header { position: static; }
  .card-gallery { grid-template-columns: 1fr; }
}