/* xtest public — professional multilingual company site */
:root {
  --ink: #102a43;
  --ink-soft: #243b53;
  --muted: #627d98;
  --line: rgba(16, 42, 67, 0.12);
  --surface: #f3f6f8;
  --surface-2: #e8eef3;
  --paper: #fafbfc;
  --accent: #0f766e;
  --accent-hover: #0d5f59;
  --accent-soft: rgba(15, 118, 110, 0.12);
  --danger: #b91c1c;
  --ok: #047857;
  --font-display: "Literata", "Georgia", serif;
  --font-body: "Sora", "Segoe UI", sans-serif;
  --shadow-soft: 0 18px 50px rgba(16, 42, 67, 0.08);
  --radius: 4px;
  --header-h: 4.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.site {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(15, 118, 110, 0.08), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(16, 42, 67, 0.06), transparent 50%),
    linear-gradient(180deg, var(--surface) 0%, var(--paper) 40%, var(--surface-2) 100%);
  background-attachment: fixed;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--accent-hover); }

img { max-width: 100%; height: auto; }

.site-shell { width: min(1120px, calc(100% - 2rem)); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  display: flex;
  align-items: center;
  backdrop-filter: blur(14px);
  background: rgba(250, 251, 252, 0.82);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.35s var(--ease), background 0.35s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(250, 251, 252, 0.95);
  box-shadow: 0 8px 30px rgba(16, 42, 67, 0.06);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
}
.brand img { height: 36px; width: auto; }
.brand:hover { color: var(--ink); }

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: transparent;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 1.1rem;
  height: 2px;
  margin: 0.28rem auto;
  background: var(--ink);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.15rem 1.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  position: relative;
  padding: 0.35rem 0;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: 0;
  height: 2px;
  background: var(--accent);
  transition: right 0.35s var(--ease);
}
.nav-links a:hover,
.nav-links a.is-active { color: var(--ink); }
.nav-links a:hover::after,
.nav-links a.is-active::after { right: 0; }

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: 0.5rem;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.7);
  padding: 0.35rem 0.55rem;
  border-radius: var(--radius);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-decoration: none;
}
.lang-switch:hover { color: var(--ink); border-color: rgba(15,118,110,0.35); }
.lang-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 0.4rem);
  min-width: 10rem;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  border-radius: var(--radius);
  padding: 0.35rem;
  display: none;
}
.lang-wrap { position: relative; }
.lang-wrap.open .lang-menu { display: block; }
.lang-menu a {
  display: block;
  padding: 0.45rem 0.65rem;
  color: var(--ink-soft);
  text-decoration: none;
  border-radius: 3px;
  font-size: 0.88rem;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 500;
}
.lang-menu a:hover,
.lang-menu a.is-active { background: var(--accent-soft); color: var(--ink); }

/* Hero */
.hero {
  position: relative;
  min-height: min(88vh, 760px);
  display: grid;
  align-items: end;
  color: #f7fafc;
  overflow: hidden;
}
.hero-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(16,42,67,0.25) 0%, rgba(16,42,67,0.72) 55%, rgba(16,42,67,0.88) 100%),
    url("https://images.unsplash.com/photo-1497366216548-37526070297c?auto=format&fit=crop&w=2000&q=80") center/cover no-repeat;
  transform: scale(1.04);
  animation: heroZoom 18s var(--ease) both;
}
@keyframes heroZoom {
  from { transform: scale(1.08); }
  to { transform: scale(1); }
}
.hero-inner {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto 4.5rem;
  max-width: 38rem;
}
.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 4.6rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin: 0 0 1.1rem;
  animation: rise 0.9s var(--ease) both;
}
.hero-title {
  font-family: var(--font-body);
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  font-weight: 500;
  line-height: 1.35;
  margin: 0 0 0.85rem;
  max-width: 28ch;
  animation: rise 0.9s 0.12s var(--ease) both;
}
.hero-lead {
  margin: 0 0 1.75rem;
  color: rgba(247,250,252,0.82);
  font-size: 1.02rem;
  max-width: 36ch;
  animation: rise 0.9s 0.22s var(--ease) both;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  animation: rise 0.9s 0.32s var(--ease) both;
}
@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2.85rem;
  padding: 0.7rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-ghost {
  background: transparent;
  color: #f7fafc;
  border-color: rgba(247,250,252,0.45);
}
.btn-ghost:hover { background: rgba(247,250,252,0.1); color: #fff; }
.btn-ink {
  background: var(--ink);
  color: #fff;
}
.btn-ink:hover { background: var(--ink-soft); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* Sections */
.site-main { flex: 1; }
.section {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
}
.section-head {
  max-width: 36rem;
  margin-bottom: 2rem;
}
.section-kicker {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.65rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.55rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.75rem;
  color: var(--ink);
}
.section-copy {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.prose {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 42rem;
}
.prose p { margin: 0 0 1rem; }

.section-band {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.7), rgba(232,238,243,0.55));
  border-block: 1px solid var(--line);
}
.feature-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 4vw, 2.75rem);
}
.feature-row h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 0 0 0.55rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.feature-row p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.55;
}

.page-banner {
  padding: 3.5rem 0 2rem;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(15,118,110,0.08), transparent 45%),
    linear-gradient(180deg, #fff, transparent);
}
.page-banner h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0;
  letter-spacing: -0.025em;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.contact-form {
  background: rgba(255,255,255,0.78);
  border: 1px solid var(--line);
  padding: clamp(1.5rem, 3vw, 2rem);
  box-shadow: var(--shadow-soft);
}
.field { margin-bottom: 1rem; }
.field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
.field input,
.field textarea,
.field select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  padding: 0.75rem 0.85rem;
  font: inherit;
  color: var(--ink);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field-error { color: var(--danger); font-size: 0.85rem; margin-top: 0.3rem; }
.contact-aside {
  padding-top: 0.5rem;
}
.contact-aside dl { margin: 0; }
.contact-aside dt {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 1.25rem;
}
.contact-aside dd {
  margin: 0.25rem 0 0;
  color: var(--ink);
  font-size: 1.05rem;
}

.flash {
  width: min(1120px, calc(100% - 2rem));
  margin: 1rem auto 0;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
  font-size: 0.95rem;
}
.flash-ok { border-color: rgba(4,120,87,0.25); background: #ecfdf5; color: var(--ok); }
.flash-err { border-color: rgba(185,28,28,0.25); background: #fef2f2; color: var(--danger); }

/* Footer */
.site-footer {
  margin-top: auto;
  background: var(--ink);
  color: rgba(247,250,252,0.72);
  padding: 3rem 0 1.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}
.footer-brand {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: #fff;
  margin: 0 0 0.75rem;
}
.site-footer a { color: rgba(247,250,252,0.82); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-title {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(247,250,252,0.5);
  margin: 0 0 0.85rem;
  font-weight: 700;
}
.footer-list { list-style: none; margin: 0; padding: 0; }
.footer-list li + li { margin-top: 0.45rem; }
.footer-bottom {
  width: min(1120px, calc(100% - 2rem));
  margin: 2rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(247,250,252,0.12);
  font-size: 0.85rem;
  color: rgba(247,250,252,0.45);
}

@media (max-width: 860px) {
  .contact-grid,
  .footer-grid,
  .feature-row { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-block; }
  .nav-panel {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: rgba(250,251,252,0.98);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1rem 1.25rem;
    box-shadow: var(--shadow-soft);
  }
  .nav-panel.open { display: block; }
  .nav-links { flex-direction: column; align-items: flex-start; gap: 0.35rem; }
  .lang-wrap { margin-top: 0.75rem; }
  .hero { min-height: 78vh; }
  .hero-inner { margin-bottom: 3rem; }
}