/* InfoVisa.lu — Professional Schengen Visa Information
   Design system 2026 — Mobile-first, accessible, fast */

:root {
  /* Brand palette — EU-inspired blue + warm accents */
  --c-blue-900: #0a2240;
  --c-blue-700: #003399; /* EU blue */
  --c-blue-500: #1e5fbe;
  --c-blue-100: #e8f0ff;
  --c-blue-50:  #f5f9ff;
  --c-gold:     #ffcc00; /* EU gold */
  --c-amber:    #f59e0b;
  --c-green:    #16a34a;
  --c-red:      #dc2626;
  --c-grey-900: #0f172a;
  --c-grey-700: #334155;
  --c-grey-500: #64748b;
  --c-grey-300: #cbd5e1;
  --c-grey-100: #f1f5f9;
  --c-grey-50:  #f8fafc;
  --c-white:    #ffffff;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Inter', system-ui, sans-serif;

  /* Spacing scale */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-8: 3rem;
  --s-10: 4rem;
  --s-12: 6rem;

  /* Layout */
  --max-w: 1200px;
  --max-w-prose: 760px;
  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.04);
  --shadow:    0 4px 12px rgba(15,23,42,.08);
  --shadow-lg: 0 12px 32px rgba(15,23,42,.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--c-grey-900);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; height: auto; display: block; }

a { color: var(--c-blue-700); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--c-grey-900);
  margin: 0 0 var(--s-4);
}
h1 { font-size: clamp(1.85rem, 4vw, 2.75rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-top: var(--s-8); letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; margin-top: var(--s-6); }
h4 { font-size: 1.05rem; }

p { margin: 0 0 var(--s-4); }
ul, ol { padding-left: 1.4rem; margin: 0 0 var(--s-4); }
li { margin-bottom: var(--s-2); }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--s-5); }
.container-prose { max-width: var(--max-w-prose); margin: 0 auto; padding: 0 var(--s-5); }

/* ======= HEADER ======= */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.96);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--c-grey-300);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s-5); padding: var(--s-3) 0;
}
.brand { display: flex; align-items: center; gap: var(--s-3); font-weight: 700; font-size: 1.15rem; color: var(--c-blue-900); }
.brand:hover { text-decoration: none; }
.brand-logo {
  width: 36px; height: 36px; border-radius: 8px;
  background: linear-gradient(135deg, var(--c-blue-700), var(--c-blue-500));
  color: var(--c-gold); display: grid; place-items: center;
  font-weight: 800; font-size: 1.1rem;
}

.nav { display: flex; align-items: center; gap: var(--s-1); }
.nav a {
  padding: var(--s-2) var(--s-3); border-radius: var(--radius-sm);
  color: var(--c-grey-700); font-size: 0.95rem; font-weight: 500;
}
.nav a:hover { background: var(--c-blue-50); color: var(--c-blue-700); text-decoration: none; }
.nav a.active { background: var(--c-blue-100); color: var(--c-blue-700); }

.lang-switch {
  position: relative;
}
.lang-switch summary {
  list-style: none; cursor: pointer; padding: var(--s-2) var(--s-3);
  border-radius: var(--radius-sm); font-weight: 500; font-size: 0.95rem;
  display: inline-flex; align-items: center; gap: var(--s-2);
  border: 1px solid var(--c-grey-300); background: var(--c-white);
}
.lang-switch summary::-webkit-details-marker { display: none; }
.lang-switch summary:hover { background: var(--c-grey-100); }
.lang-switch[open] summary { background: var(--c-blue-100); }
.lang-switch ul {
  position: absolute; right: 0; top: calc(100% + 4px);
  background: var(--c-white); border: 1px solid var(--c-grey-300);
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
  padding: var(--s-2); margin: 0; min-width: 180px; list-style: none;
}
.lang-switch ul li { margin: 0; }
.lang-switch ul a {
  display: flex; align-items: center; gap: var(--s-3);
  padding: var(--s-2) var(--s-3); border-radius: var(--radius-sm);
  font-size: 0.95rem;
}
.lang-switch ul a:hover { background: var(--c-blue-50); text-decoration: none; }
.flag { font-size: 1.1rem; }

.menu-btn {
  display: none; background: none; border: 0; padding: var(--s-2);
  cursor: pointer; border-radius: var(--radius-sm);
}
.menu-btn:hover { background: var(--c-grey-100); }

@media (max-width: 900px) {
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--c-white); border-bottom: 1px solid var(--c-grey-300);
    flex-direction: column; align-items: stretch; padding: var(--s-3); gap: 0; }
  .nav.open { display: flex; }
  .nav a { padding: var(--s-3); border-radius: var(--radius-sm); }
  .menu-btn { display: inline-grid; place-items: center; }
}

/* ======= HERO ======= */
.hero {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(255,204,0,0.18), transparent 60%),
    radial-gradient(900px 500px at 0% 0%, rgba(0,51,153,0.10), transparent 60%),
    linear-gradient(180deg, var(--c-blue-50), var(--c-white));
  padding: var(--s-12) 0 var(--s-10);
  border-bottom: 1px solid var(--c-grey-300);
}
.hero-inner { max-width: 880px; }
.hero h1 { color: var(--c-blue-900); margin-bottom: var(--s-5); }
.hero p.lead { font-size: 1.2rem; color: var(--c-grey-700); margin-bottom: var(--s-6); }
.hero-cta { display: flex; flex-wrap: wrap; gap: var(--s-3); }

.btn {
  display: inline-flex; align-items: center; gap: var(--s-2);
  padding: var(--s-3) var(--s-5); border-radius: var(--radius);
  font-weight: 600; font-size: 0.98rem; cursor: pointer;
  transition: transform .08s ease, box-shadow .15s ease, background .15s ease;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-primary { background: var(--c-blue-700); color: var(--c-white); }
.btn-primary:hover { background: var(--c-blue-900); color: var(--c-white); }
.btn-outline { background: var(--c-white); color: var(--c-blue-700); border-color: var(--c-blue-700); }
.btn-outline:hover { background: var(--c-blue-50); }
.btn-gold { background: var(--c-gold); color: var(--c-blue-900); }
.btn-gold:hover { background: #ffd633; color: var(--c-blue-900); }

/* ======= SECTIONS ======= */
section.block { padding: var(--s-10) 0; }
section.block.alt { background: var(--c-grey-50); }
.section-eyebrow { color: var(--c-blue-700); font-weight: 600; text-transform: uppercase; letter-spacing: .08em; font-size: .82rem; }

/* ======= GRID / CARDS ======= */
.grid { display: grid; gap: var(--s-5); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.card {
  background: var(--c-white); border: 1px solid var(--c-grey-300);
  border-radius: var(--radius-lg); padding: var(--s-5);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--c-blue-500); }
.card-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--c-blue-100); color: var(--c-blue-700);
  display: grid; place-items: center; margin-bottom: var(--s-4);
  font-size: 1.4rem;
}
.card h3 { margin-top: 0; }
.card p { color: var(--c-grey-700); margin-bottom: var(--s-3); }
.card a.card-link; font-weight: 600; }
.card a.card-link::after { content: " →"; }

/* ======= ALERTS / CALLOUTS ======= */
.alert {
  padding: var(--s-4) var(--s-5); border-radius: var(--radius);
  border-left: 4px solid; margin: var(--s-5) 0;
}
.alert-info    { background: #eff6ff; border-color: var(--c-blue-700); }
.alert-warning { background: #fef3c7; border-color: var(--c-amber); }
.alert-success { background: #ecfdf5; border-color: var(--c-green); }
.alert-danger  { background: #fef2f2; border-color: var(--c-red); }
.alert strong { display: block; margin-bottom: var(--s-2); }

/* ======= TABLES ======= */
.table-wrap { overflow-x: auto; margin: var(--s-5) 0; border: 1px solid var(--c-grey-300); border-radius: var(--radius); }
table {
  width: 100%; border-collapse: collapse; font-size: 0.95rem;
  background: var(--c-white);
}
thead th {
  text-align: left; padding: var(--s-3) var(--s-4);
  background: var(--c-blue-50); color: var(--c-blue-900);
  font-weight: 700; font-size: 0.9rem; text-transform: uppercase; letter-spacing: .04em;
  border-bottom: 1px solid var(--c-grey-300);
}
tbody td { padding: var(--s-3) var(--s-4); border-bottom: 1px solid var(--c-grey-100); vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--c-grey-50); }

/* Country table specific */
.country-table td .flag { margin-right: var(--s-2); }
.country-table a.apply-link {
  display: inline-block; padding: 4px 10px; border-radius: 999px;
  background: var(--c-blue-700); color: var(--c-white); font-size: 0.85rem; font-weight: 600;
}
.country-table a.apply-link:hover { background: var(--c-blue-900); text-decoration: none; }

/* ======= FAQ ======= */
.faq details {
  background: var(--c-white); border: 1px solid var(--c-grey-300);
  border-radius: var(--radius); padding: var(--s-4) var(--s-5);
  margin-bottom: var(--s-3); transition: border-color .15s;
}
.faq details[open] { border-color: var(--c-blue-500); box-shadow: var(--shadow-sm); }
.faq summary {
  cursor: pointer; font-weight: 600; font-size: 1.05rem; color: var(--c-grey-900);
  list-style: none; display: flex; align-items: flex-start; gap: var(--s-3);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "+"; flex-shrink: 0;
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--c-blue-100); color: var(--c-blue-700);
  display: grid; place-items: center; font-weight: 700; font-size: 1.1rem;
  transition: transform .2s, background .15s;
}
.faq details[open] summary::before { content: "−"; background: var(--c-blue-700); color: var(--c-white); }
.faq details > p, .faq details > ul { margin-top: var(--s-3); color: var(--c-grey-700); }

/* ======= TIMELINE ======= */
.timeline { position: relative; padding-left: var(--s-6); margin: var(--s-6) 0; }
.timeline::before {
  content: ""; position: absolute; left: 12px; top: 0; bottom: 0;
  width: 2px; background: var(--c-grey-300);
}
.timeline-item { position: relative; margin-bottom: var(--s-5); }
.timeline-item::before {
  content: ""; position: absolute; left: -28px; top: 6px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--c-blue-700); border: 3px solid var(--c-white);
  box-shadow: 0 0 0 1px var(--c-blue-700);
}
.timeline-item h4 { margin: 0 0 var(--s-1); }
.timeline-item p { color: var(--c-grey-700); }

/* ======= ADSENSE WRAPPERS ======= */
.ad-slot {
  margin: var(--s-6) auto;
  text-align: center; min-height: 90px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-grey-50);
  border: 1px dashed var(--c-grey-300);
  border-radius: var(--radius);
  color: var(--c-grey-500); font-size: 0.85rem;
}
.ad-slot ins { display: block; }
.ad-label {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--c-grey-500); margin-bottom: 4px; text-align: center;
}

/* ======= FORMS ======= */
.form-row { display: grid; gap: var(--s-3); margin-bottom: var(--s-4); }
.form-row label { font-weight: 600; font-size: 0.95rem; color: var(--c-grey-700); }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: var(--s-3); border: 1px solid var(--c-grey-300);
  border-radius: var(--radius-sm); font-family: inherit; font-size: 1rem;
  background: var(--c-white);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: 0; border-color: var(--c-blue-500); box-shadow: 0 0 0 3px var(--c-blue-100);
}

/* ======= COST CALCULATOR ======= */
.calc {
  background: var(--c-blue-50); border: 1px solid var(--c-blue-100);
  border-radius: var(--radius-lg); padding: var(--s-6); margin: var(--s-6) 0;
}
.calc h3 { margin-top: 0; color: var(--c-blue-900); }
.calc-result {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: var(--s-4); margin-top: var(--s-4);
  background: var(--c-white); border: 1px solid var(--c-blue-100);
  border-radius: var(--radius); font-weight: 600;
}
.calc-result .total { font-size: 1.6rem; color: var(--c-blue-700); font-weight: 800; }

/* ======= FOOTER ======= */
.site-footer {
  background: var(--c-blue-900); color: #cbd5e1;
  padding: var(--s-10) 0 var(--s-5); margin-top: var(--s-10);
}
.site-footer h4 { color: var(--c-white); margin-top: 0; font-size: 1rem; }
.site-footer a { color: #cbd5e1; }
.site-footer a:hover { color: var(--c-gold); }
.footer-grid { display: grid; gap: var(--s-6); grid-template-columns: 2fr repeat(3, 1fr); margin-bottom: var(--s-6); }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: var(--s-2); }
.footer-bottom { padding-top: var(--s-5); border-top: 1px solid rgba(255,255,255,.1);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--s-3);
  font-size: 0.85rem; color: #94a3b8; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .footer-grid { grid-template-columns: 1fr; } }

/* ======= UTILITIES ======= */
.text-center { text-align: center; }
.muted { color: var(--c-grey-500); }
.small { font-size: 0.9rem; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.pill { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.8rem; font-weight: 600;
  background: var(--c-blue-100); color: var(--c-blue-700); }
.pill-amber  { background: #fef3c7; color: #92400e; }
.pill-green  { background: #dcfce7; color: #166534; }
.pill-red    { background: #fee2e2; color: #991b1b; }

.breadcrumb { color: var(--c-grey-500); font-size: 0.9rem; padding: var(--s-3) 0; }
.breadcrumb a { color: var(--c-grey-500); }
.breadcrumb a:hover { color: var(--c-blue-700); }
.breadcrumb span { margin: 0 var(--s-2); }

/* ======= COOKIE BANNER ======= */
.cookie-banner {
  position: fixed; left: var(--s-4); right: var(--s-4); bottom: var(--s-4);
  z-index: 100; max-width: 720px; margin: 0 auto;
  background: var(--c-white); border: 1px solid var(--c-grey-300);
  border-radius: var(--radius-lg); padding: var(--s-5);
  box-shadow: var(--shadow-lg);
  display: none;
}
.cookie-banner.show { display: block; }
.cookie-banner h4 { margin: 0 0 var(--s-2); }
.cookie-banner p { margin: 0 0 var(--s-4); font-size: 0.92rem; color: var(--c-grey-700); }
.cookie-actions { display: flex; gap: var(--s-3); flex-wrap: wrap; }

/* Skip link */
.skip-link {
  position: absolute; left: -9999px;
  background: var(--c-blue-900); color: var(--c-white);
  padding: var(--s-2) var(--s-4); z-index: 1000;
}
.skip-link:focus { left: var(--s-3); top: var(--s-3); }