/* Linguosofia — responsive four-language website */
:root {
  --bg-deep: #120000;
  --bg-dark: #310000;
  --bg-red: #a90000;
  --bg-hot: #d90000;
  --title-blue: #1f38ff;
  --text-yellow: #ffe94a;
  --text-soft: #fff3a0;
  --gold: #ffd84d;
  --card: rgba(42, 0, 0, .70);
  --card-strong: rgba(26, 0, 0, .88);
  --line: rgba(255, 232, 74, .34);
  --shadow: 0 18px 50px rgba(0,0,0,.34);
  --radius: 22px;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--text-yellow);
  background:
    radial-gradient(circle at 50% 22%, rgba(226, 0, 0, .96) 0%, rgba(164, 0, 0, .92) 28%, rgba(81, 0, 0, .96) 58%, var(--bg-deep) 100%),
    linear-gradient(135deg, #5d0000, #150000 68%);
  line-height: 1.65;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(120deg, rgba(255,255,255,.045), transparent 28%, transparent 72%, rgba(255,255,255,.025));
  z-index: -1;
}
a { color: #fff36b; text-underline-offset: 3px; }
a:hover { color: white; }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font: inherit; }
.skip-link {
  position: fixed; left: 12px; top: -80px; z-index: 9999;
  background: var(--text-yellow); color: #120000; padding: 10px 14px; border-radius: 10px;
  font-weight: 800; transition: top .2s ease;
}
.skip-link:focus { top: 12px; }
.site-header {
  position: sticky; top: 0; z-index: 1000;
  backdrop-filter: blur(14px);
  background: rgba(30,0,0,.86);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 35px rgba(0,0,0,.24);
}
.header-inner {
  max-width: var(--max); margin: 0 auto; min-height: 84px; padding: 12px 20px;
  display: flex; align-items: center; gap: 18px;
}
.brand { flex: 0 0 auto; display: inline-flex; align-items: center; text-decoration: none; }
.brand img { width: 250px; max-width: 42vw; border-radius: 4px; box-shadow: 0 4px 16px rgba(0,0,0,.3); }
.nav-toggle {
  display: none; margin-left: auto; border: 1px solid var(--line); background: rgba(255,232,74,.1);
  color: var(--text-yellow); border-radius: 12px; padding: 10px 13px; cursor: pointer; font-weight: 800;
}
.primary-nav { margin-left: auto; }
.primary-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: nowrap; align-items: center; gap: 3px; }
.primary-nav a {
  display: block; color: var(--text-yellow); text-decoration: none; font-weight: 750;
  padding: 9px 10px; border-radius: 10px; font-size: .95rem;
}
.primary-nav a:hover, .primary-nav a[aria-current="page"] { background: rgba(255,232,74,.15); color: white; }
.language-box { flex: 0 0 auto; }
.language-box label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.language-box select {
  color: #1d0000; background: var(--text-yellow); border: 0; border-radius: 12px; padding: 9px 30px 9px 10px;
  font-weight: 900; cursor: pointer; width: 120px; max-width: 120px;
}
main { max-width: var(--max); margin: 0 auto; padding: 42px 20px 72px; }
.hero {
  min-height: 70vh; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(320px,.92fr); align-items: center; gap: 42px;
}
.hero-copy { padding: 16px 0; }
.eyebrow { text-transform: uppercase; letter-spacing: .13em; font-weight: 900; font-size: .84rem; color: var(--text-soft); }
h1,h2,h3 { color: var(--title-blue); line-height: 1.08; letter-spacing: -.02em; margin-top: 0; text-shadow: 0 1px 0 rgba(255,255,255,.18), 0 2px 12px rgba(0,0,0,.35); }
h1 { font-size: clamp(2.5rem, 7vw, 5.3rem); margin-bottom: 18px; }
h2 { font-size: clamp(1.8rem, 4vw, 3.1rem); margin-bottom: 18px; }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.7rem); margin-bottom: 12px; }
p { margin: 0 0 1rem; font-size: 1.06rem; }
.lead { font-size: clamp(1.1rem, 2.1vw, 1.35rem); color: #fff15f; max-width: 760px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 11px 18px;
  border-radius: 13px; border: 2px solid var(--text-yellow); font-weight: 900; text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn-primary { background: var(--text-yellow); color: #1c24bb; box-shadow: 0 12px 28px rgba(0,0,0,.22); }
.btn-secondary { background: rgba(30,0,0,.36); color: var(--text-yellow); }
.btn:hover { transform: translateY(-2px); color: #1c24bb; box-shadow: 0 15px 30px rgba(0,0,0,.3); }
.btn-secondary:hover { color: white; background: rgba(255,232,74,.12); }
.hero-visual {
  position: relative; border-radius: 30px; padding: 20px; background: linear-gradient(145deg, rgba(255,235,74,.14), rgba(50,0,0,.58));
  border: 1px solid var(--line); box-shadow: var(--shadow);
}
.hero-visual .collage { width: min(100%, 530px); margin: 0 auto; border-radius: 20px; box-shadow: 0 18px 40px rgba(0,0,0,.35); }
.hero-visual .slogan { width: min(88%, 420px); margin: 18px auto 0; border-radius: 8px; }
.page-heading { padding: 36px 0 24px; }
.page-heading p { max-width: 850px; }
.content-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(290px,.68fr); gap: 30px; align-items: start; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(20px, 3vw, 32px); box-shadow: var(--shadow);
}
.card + .card { margin-top: 20px; }
.visual-card img { margin: 0 auto; border-radius: 18px; max-height: 520px; object-fit: contain; }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; margin-top: 28px; }
.feature { min-height: 100%; background: rgba(36,0,0,.64); border: 1px solid var(--line); border-radius: 18px; padding: 22px; }
.feature p { font-size: 1rem; }
.contact-strip {
  margin-top: 34px; padding: 18px 22px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px;
  border: 1px solid var(--line); border-radius: 18px; background: var(--card-strong);
}
.contact-strip p { margin: 0; }
.flag-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 22px; }
.flag-grid img { aspect-ratio: 16/9; object-fit: cover; border-radius: 12px; border: 1px solid rgba(255,255,255,.35); }
.pair-list { display: grid; gap: 10px; padding: 0; list-style: none; margin: 20px 0; }
.pair-list li { padding: 12px 14px; border-left: 4px solid var(--text-yellow); background: rgba(255,232,74,.07); border-radius: 0 12px 12px 0; font-weight: 800; }
.news-intro { display:grid; grid-template-columns:minmax(0,1fr) minmax(220px,.55fr); gap:24px; align-items:center; }
.news-intro img { max-height:300px; }
.news-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; margin-top: 26px; }
details.article { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 20px; box-shadow: var(--shadow); }
details.article summary { cursor: pointer; color: var(--title-blue); font-weight: 900; font-size: 1.25rem; line-height: 1.25; }
details.article summary::marker { color: var(--text-yellow); }
details.article p { margin-top: 16px; font-size: 1rem; }
.contact-layout { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(280px,.72fr); gap: 26px; align-items: start; }
form.contact-form { display: grid; gap: 15px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: grid; gap: 6px; }
.field label { font-weight: 850; }
.field input, .field textarea, .field select {
  width: 100%; color: #fffbd4; background: rgba(18,0,0,.78); border: 1px solid rgba(255,232,74,.48); border-radius: 12px;
  padding: 12px 13px; outline: none;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: #fff; box-shadow: 0 0 0 3px rgba(255,232,74,.14); }
.field textarea { min-height: 180px; resize: vertical; }
.field small { color: var(--text-soft); }
.honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.form-status { min-height: 1.6em; font-weight: 850; }
.form-status.ok { color: #d6ff8c; }
.form-status.error { color: #fff; }
.contact-aside .contact-data { margin-bottom: 18px; }
.contact-data a { font-weight: 800; word-break: break-word; }
.contact-aside .envelope { max-width: 240px; margin: 20px auto 0; filter: drop-shadow(0 18px 24px rgba(0,0,0,.32)); }
.testimonials-wrap { margin-top: 34px; }
.testimonial-shell { overflow: hidden; border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow); background: rgba(28,0,0,.76); }
.testimonial-track { display: flex; transition: transform 1.05s ease; will-change: transform; }
.testimonial { min-width: 100%; padding: clamp(24px, 4vw, 40px); }
.testimonial blockquote { margin: 0 0 14px; font-size: clamp(1.08rem, 2vw, 1.28rem); font-weight: 700; line-height: 1.65; }
.testimonial .source { color: var(--text-soft); font-size: .96rem; font-weight: 850; }
.testimonial-dots { display: flex; justify-content: center; gap: 8px; margin-top: 14px; }
.testimonial-dots button { width: 12px; height: 12px; padding: 0; border: 0; border-radius: 999px; background: rgba(255,232,74,.35); cursor: pointer; }
.testimonial-dots button[aria-current="true"] { background: var(--text-yellow); transform: scale(1.12); }
.disclosure { color: var(--text-soft); font-size: .9rem; margin-top: 12px; }
.site-footer { border-top: 1px solid var(--line); background: rgba(20,0,0,.88); }
.footer-inner { max-width: var(--max); margin: 0 auto; padding: 24px 20px; display: flex; flex-wrap: wrap; gap: 12px 26px; justify-content: space-between; align-items: center; }
.footer-inner p { margin: 0; font-size: .92rem; }
.footer-logo { width: 160px; border-radius: 3px; }
.note { padding: 14px 16px; border-left: 4px solid var(--text-yellow); background: rgba(255,232,74,.08); border-radius: 0 12px 12px 0; }
@media (max-width: 960px) {
  .header-inner { flex-wrap: wrap; }
  .nav-toggle { display: inline-flex; }
  .primary-nav { order: 4; width: 100%; display: none; margin: 0; }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { display: grid; grid-template-columns: repeat(3, 1fr); padding: 8px 0 4px; }
  .primary-nav a { text-align: center; }
  .language-box { margin-left: 0; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-visual { max-width: 700px; width: 100%; margin: 0 auto; }
  .content-grid, .contact-layout { grid-template-columns: 1fr; }
  .feature-grid, .news-grid { grid-template-columns: 1fr 1fr; }
  .news-intro { grid-template-columns: 1fr; }
  .news-intro img { max-height: 360px; }
}
@media (max-width: 620px) {
  main { padding: 26px 15px 54px; }
  .header-inner { padding-inline: 14px; min-height: 72px; }
  .brand img { width: 190px; max-width: 58vw; }
  .primary-nav ul { grid-template-columns: 1fr 1fr; }
  .language-box select { max-width: 110px; }
  .hero { gap: 22px; }
  .hero-visual { padding: 12px; border-radius: 20px; }
  .feature-grid, .news-grid, .form-row { grid-template-columns: 1fr; }
  .flag-grid { grid-template-columns: 1fr 1fr; }
  .contact-strip { align-items: flex-start; }
  .footer-inner { justify-content: center; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}