/* ============================================================
   Jera China — стили сайта
   Палитра: фон #06080F · красный #D8402C · синий #6FB4FF
   ============================================================ */

:root {
  --bg: #06080F;
  --bg-soft: #0A1220;
  --panel: #0C1018;
  --ink: #E8EDF6;
  --muted: #A9B8D4;
  --dim: #5E7396;
  --red: #D8402C;
  --red-dark: #A62E1E;
  --red-soft: rgba(216, 64, 44, 0.14);
  --blue: #6FB4FF;
  --line: rgba(111, 180, 255, 0.14);
  --line-red: rgba(216, 64, 44, 0.3);
  --font-display: 'Russo One', 'Arial Black', sans-serif;
  --font-body: 'Golos Text', 'Segoe UI', system-ui, sans-serif;
  --container: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--red); text-decoration: none; }
a:hover { color: #EF6650; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 400; margin: 0; }

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ---------- Кнопки ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  gap: 10px;
  padding: 15px 30px;
  border-radius: 12px;
  font-size: 15.5px;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  color: #FFF6F3;
  box-shadow: 0 8px 32px rgba(216, 64, 44, 0.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(216, 64, 44, 0.35); color: #FFFFFF; }

.btn-ghost {
  background: transparent;
  border: 1px solid rgba(111, 180, 255, 0.35);
  color: #CBD8EE;
}
.btn-ghost:hover { border-color: var(--blue); color: #FFFFFF; }

/* ---------- Шапка ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 8, 15, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-block: 14px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
}
.logo:hover { color: var(--ink); }

.logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.logo-name { font-family: var(--font-display); font-size: 17px; letter-spacing: 0.1em; white-space: nowrap; }
.logo-tag { font-size: 10px; letter-spacing: 0.14em; color: var(--dim); text-transform: uppercase; }

.main-nav { display: flex; align-items: center; gap: 20px; }
.main-nav a { font-size: 14px; font-weight: 500; color: var(--muted); white-space: nowrap; }
.main-nav a:hover { color: var(--ink); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.header-actions .btn { white-space: nowrap; padding: 12px 20px; font-size: 14px; }

.lang-switch { display: flex; gap: 2px; font-size: 13px; font-weight: 600; }
.lang-switch a, .lang-switch span {
  padding: 5px 8px;
  border-radius: 7px;
  color: var(--dim);
}
.lang-switch a:hover { color: var(--ink); }
.lang-switch .active { background: var(--red-soft); color: var(--red); }

.burger {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
}
.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  margin-block: 4px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Мобильное меню */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px 24px 24px;
  border-top: 1px solid var(--line);
  background: rgba(6, 8, 15, 0.97);
}
.mobile-menu a {
  padding: 12px 4px;
  font-size: 16px;
  color: var(--muted);
  border-bottom: 1px solid rgba(111, 180, 255, 0.08);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu.open { display: flex; }

/* ---------- Герой ---------- */

.hero {
  background:
    radial-gradient(1000px 600px at 78% 30%, rgba(111, 180, 255, 0.10), transparent 65%),
    radial-gradient(700px 420px at 12% 85%, rgba(216, 64, 44, 0.08), transparent 65%),
    var(--bg);
  overflow: hidden;
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-block: 64px 48px;
}

.hero-copy { display: flex; flex-direction: column; gap: 22px; flex: 1 1 480px; min-width: 0; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--red);
  text-transform: uppercase;
}
.eyebrow::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--red);
  box-shadow: 0 0 12px rgba(216, 64, 44, 0.9);
  flex-shrink: 0;
}

.hero h1 {
  font-size: clamp(32px, 4.6vw, 50px);
  line-height: 1.18;
  text-wrap: balance;
}

.hero-lead { margin: 0; font-size: 17.5px; color: var(--muted); max-width: 540px; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-chips { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 4px; }
.chip {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 18px;
  border-radius: 12px;
  background: rgba(111, 180, 255, 0.06);
  border: 1px solid var(--line);
}
.chip b { font-family: var(--font-display); font-weight: 400; font-size: 20px; }
.chip span { font-size: 12.5px; color: var(--dim); }

.hero-map { flex: 1 1 480px; min-width: 0; }
.hero-map svg { width: 100%; height: auto; display: block; }

/* Анимации карты */
@keyframes dashmove { to { stroke-dashoffset: -26; } }
@keyframes pulse { 0%, 100% { opacity: 0.35; } 50% { opacity: 1; } }
.route-arc { stroke-dasharray: 8 5; animation: dashmove 2.6s linear infinite; }
.node-pulse { animation: pulse 2.4s ease-in-out infinite; }

@media (prefers-reduced-motion: reduce) {
  .route-arc, .node-pulse { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Лента направлений ---------- */

.routes-strip {
  border-block: 1px solid var(--line);
  background: var(--panel);
}
.routes-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}
.route-cell {
  padding: 20px 18px;
  border-inline-end: 1px solid rgba(111, 180, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.route-cell:last-child { border-inline-end: none; }
.route-cell b { font-family: var(--font-display); font-weight: 400; font-size: 15.5px; }
.route-cell span { font-size: 12.5px; color: var(--dim); }
.route-cell.accent b { color: var(--red); }

/* ---------- Секции ---------- */

.section { padding-block: 72px; }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 36px;
}
.section-head h2 { font-size: clamp(26px, 3.4vw, 34px); }
.section-head p { margin: 0; font-size: 15px; color: var(--dim); max-width: 420px; text-align: end; }

/* ---------- Услуги ---------- */

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.service-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px;
  border-radius: 16px;
  background: linear-gradient(160deg, rgba(111, 180, 255, 0.08), rgba(111, 180, 255, 0.02));
  border: 1px solid rgba(111, 180, 255, 0.16);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.service-card:hover { transform: translateY(-4px); border-color: rgba(111, 180, 255, 0.4); }
.service-card.accent {
  background: linear-gradient(160deg, rgba(216, 64, 44, 0.12), rgba(216, 64, 44, 0.03));
  border-color: var(--line-red);
}
.service-card.accent:hover { border-color: rgba(216, 64, 44, 0.6); }
.service-card svg { width: 30px; height: 30px; flex-shrink: 0; }
.service-card h3 { font-size: 17px; line-height: 1.4; }
.service-card p { margin: 0; font-size: 14.5px; color: var(--muted); }

/* ---------- Корабль + статистика ---------- */

.sea-band {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 55%, var(--bg) 100%);
  padding-top: 24px;
  overflow: hidden;
}
.sea-band .ship-svg { width: 100%; height: auto; display: block; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  padding-block: 8px 56px;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-inline-start: 2px solid var(--red);
  padding-inline-start: 18px;
}
.stat:nth-child(even) { border-inline-start-color: var(--blue); }
.stat b { font-family: var(--font-display); font-weight: 400; font-size: clamp(24px, 3vw, 32px); }
.stat span { font-size: 13.5px; color: var(--dim); }

/* ---------- Процесс ---------- */

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
}
.step { display: flex; flex-direction: column; gap: 14px; }
.step-line { display: flex; align-items: center; gap: 12px; }
.step-dot {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--red);
  box-shadow: 0 0 14px rgba(216, 64, 44, 0.8);
  flex-shrink: 0;
}
.step:nth-child(even) .step-dot { background: var(--blue); box-shadow: 0 0 14px rgba(111, 180, 255, 0.7); }
.step-line::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, rgba(216, 64, 44, 0.5), rgba(111, 180, 255, 0.15));
}
[dir="rtl"] .step-line::after { background: linear-gradient(to left, rgba(216, 64, 44, 0.5), rgba(111, 180, 255, 0.15)); }
.step h3 { font-size: 16.5px; }
.step p { margin: 0; font-size: 14.5px; color: var(--muted); }

/* ---------- Форма / CTA ---------- */

.cta-block {
  border-radius: 20px;
  background:
    radial-gradient(600px 300px at 20% 0%, rgba(216, 64, 44, 0.14), transparent 70%),
    linear-gradient(160deg, #0C1322, #080C16);
  border: 1px solid var(--line-red);
  display: flex;
  gap: 48px;
  padding: 52px 56px;
  align-items: center;
}
.cta-copy { display: flex; flex-direction: column; gap: 14px; flex: 1 1 380px; }
.cta-copy h2 { font-size: clamp(24px, 3vw, 30px); }
.cta-copy p { margin: 0; font-size: 15.5px; color: var(--muted); max-width: 460px; }
.cta-contacts { font-size: 14.5px; color: var(--dim); }
.cta-contacts a { color: var(--muted); }
.cta-contacts a:hover { color: var(--ink); }

.lead-form { display: flex; flex-direction: column; gap: 12px; flex: 1 1 400px; max-width: 520px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.lead-form input,
.lead-form select,
.lead-form textarea {
  width: 100%;
  padding: 14px 18px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(111, 180, 255, 0.2);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14.5px;
  resize: vertical;
}
.lead-form input::placeholder, .lead-form textarea::placeholder { color: var(--dim); }
.lead-form select { appearance: none; -webkit-appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--dim) 50%), linear-gradient(135deg, var(--dim) 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%; background-size: 6px 6px; background-repeat: no-repeat; }
[dir="rtl"] .lead-form select { background-position: 20px 50%, 14px 50%; }
.lead-form select option { background: #0C1018; color: var(--ink); }
.lead-form select.is-empty { color: var(--dim); }
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(216, 64, 44, 0.15);
}
.form-note { font-size: 12px; color: var(--dim); margin: 0; }

/* ---------- Блок с вкладками (заявка + калькулятор) ---------- */

.section, #contact, #calculator { scroll-margin-top: 84px; }

.tabs-block {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  background:
    radial-gradient(600px 300px at 20% 0%, rgba(216, 64, 44, 0.10), transparent 70%),
    linear-gradient(160deg, #0C1322, #080C16);
}
.tabs-nav {
  display: flex;
  flex-direction: column;
  flex: 0 0 300px;
  background: rgba(255, 255, 255, 0.02);
  border-inline-end: 1px solid var(--line);
  padding-block: 16px;
}
.tab-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 24px;
  background: none;
  border: none;
  border-inline-start: 3px solid transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 600;
  cursor: pointer;
  text-align: start;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn.active {
  color: var(--ink);
  background: rgba(216, 64, 44, 0.08);
  border-inline-start-color: var(--red);
}
.tab-btn svg { flex-shrink: 0; }
.tabs-panels { flex: 1; padding: 40px 44px; min-width: 0; }
.tab-panel { display: none; gap: 44px; align-items: flex-start; }
.tab-panel.active { display: flex; }
.panel-copy { display: flex; flex-direction: column; gap: 12px; flex: 1 1 280px; }
.panel-copy h3 { font-size: clamp(20px, 2.4vw, 26px); }
.panel-copy p { margin: 0; font-size: 15px; color: var(--muted); max-width: 380px; }
.panel-full { flex: 1 1 100%; min-width: 0; display: flex; flex-direction: column; gap: 18px; }
.panel-full h3 { font-size: clamp(20px, 2.4vw, 26px); }
.panel-full > p { margin: 0; font-size: 14.5px; line-height: 1.65; color: var(--muted); max-width: 720px; }

/* Внутренние подвкладки (виды транспорта) */
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pills button {
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
}
.pills button.active { border-color: var(--red); color: #FFFFFF; background: rgba(216, 64, 44, 0.12); }
.pill-pane { display: none; flex-direction: column; gap: 14px; }
.pill-pane.active { display: flex; }
.pill-pane p { margin: 0; font-size: 14.5px; line-height: 1.65; color: var(--muted); max-width: 720px; }

/* Таблица тарифов */
.table-scroll { overflow-x: auto; }
.price-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 460px; }
.price-table th, .price-table td { padding: 11px 14px; text-align: start; border-bottom: 1px solid rgba(111, 180, 255, 0.12); white-space: nowrap; }
.price-table th { color: var(--dim); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; }
.price-table td { color: var(--ink); }
.price-table td:first-child { font-weight: 600; }
.price-table td.accent { color: var(--red); font-weight: 600; }
.tab-note { font-size: 13px; line-height: 1.6; color: var(--dim); margin: 0; max-width: 720px; }

/* Аккордеон (услуги, FAQ) */
.acc { border-top: 1px solid var(--line); }
.acc details { border-bottom: 1px solid var(--line); }
.acc summary {
  cursor: pointer;
  padding: 16px 4px;
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}
.acc summary::-webkit-details-marker { display: none; }
.acc summary::after { content: '+'; color: var(--red); font-size: 20px; font-weight: 400; flex-shrink: 0; }
.acc details[open] summary::after { content: '\2013'; }
.acc .acc-body { padding: 0 4px 16px; color: var(--muted); font-size: 14.5px; line-height: 1.65; }
.acc .acc-body p { margin: 0 0 10px; }
.acc .acc-body p:last-child { margin-bottom: 0; }
.acc .acc-body ul { margin: 0 0 10px; padding-inline-start: 20px; }
.acc .acc-body li { margin-bottom: 6px; }

.feature-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.feature-tags span {
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(111, 180, 255, 0.07);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 500;
}

/* ---------- Калькулятор объёма ---------- */

.calc-block {
  border-radius: 20px;
  background:
    radial-gradient(600px 300px at 80% 0%, rgba(111, 180, 255, 0.10), transparent 70%),
    linear-gradient(160deg, #0C1322, #080C16);
  border: 1px solid var(--line);
  display: flex;
  gap: 48px;
  padding: 52px 56px;
  align-items: flex-start;
}
.calc-copy { display: flex; flex-direction: column; gap: 14px; flex: 1 1 340px; }
.calc-copy h2 { font-size: clamp(24px, 3vw, 30px); }
.calc-copy p { margin: 0; font-size: 15.5px; color: var(--muted); max-width: 420px; }
.calc-form { display: flex; flex-direction: column; gap: 14px; flex: 1 1 400px; max-width: 500px; }
.calc-form input {
  width: 100%;
  padding: 14px 18px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(111, 180, 255, 0.2);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14.5px;
}
.calc-form input::placeholder { color: var(--dim); }
.calc-form input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(111, 180, 255, 0.15); }
.calc-units { display: flex; align-items: center; gap: 10px; }
.calc-units span { font-size: 13.5px; color: var(--dim); }
.unit-switch { display: flex; gap: 6px; }
.unit-switch button {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--dim);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  font-family: var(--font-body);
  font-weight: 600;
  cursor: pointer;
}
.unit-switch button.active { border-color: var(--blue); color: #FFFFFF; background: rgba(111, 180, 255, 0.12); }
.calc-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.calc-result {
  display: flex;
  gap: 32px;
  padding: 16px 20px;
  border-radius: 10px;
  background: rgba(111, 180, 255, 0.06);
  border: 1px solid var(--line);
}
.calc-result > div { display: flex; flex-direction: column; gap: 2px; }
.calc-result b { font-family: var(--font-display); font-weight: 400; font-size: 24px; color: var(--ink); }
.calc-result span { font-size: 12.5px; color: var(--dim); }

/* ---------- Футер ---------- */

.site-footer { border-top: 1px solid var(--line); }
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-block: 26px;
  font-size: 13px;
  color: var(--dim);
}
.footer-inner .logo-name { font-size: 13px; letter-spacing: 0.1em; color: var(--dim); }

/* ---------- Появление при скролле ---------- */

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Адаптив ---------- */

@media (max-width: 1240px) {
  .main-nav { display: none; }
  .burger { display: block; }
}

@media (max-width: 1060px) {
  .hero-inner { flex-direction: column; align-items: stretch; }
  .hero-map { order: -1; max-width: 560px; margin-inline: auto; }
  .routes-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .route-cell:nth-child(3n) { border-inline-end: none; }
  .services-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-block { flex-direction: column; align-items: stretch; padding: 36px 28px; }
  .lead-form { max-width: none; }
  .calc-block { flex-direction: column; align-items: stretch; padding: 36px 28px; }
  .calc-form { max-width: none; }
  .tabs-block { flex-direction: column; }
  .tabs-nav { flex-direction: row; flex: none; border-inline-end: none; border-bottom: 1px solid var(--line); padding-block: 0; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .tab-btn { flex: 0 0 auto; justify-content: center; padding: 15px 16px; border-inline-start: none; border-bottom: 3px solid transparent; font-size: 14px; }
  .tab-btn svg { display: none; }
  .tab-btn.active { border-inline-start-color: transparent; border-bottom-color: var(--red); }
  .tabs-panels { padding: 28px 24px; }
  .tab-panel.active { flex-direction: column; gap: 24px; }
  .tab-panel .panel-copy, .tab-panel .lead-form, .tab-panel .calc-form { flex: none; }
  .lead-form, .calc-form { max-width: none; width: 100%; }
}

@media (max-width: 640px) {
  .section { padding-block: 52px; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .section-head p { text-align: start; }
  .routes-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .route-cell:nth-child(3n) { border-inline-end: 1px solid rgba(111, 180, 255, 0.08); }
  .route-cell:nth-child(2n) { border-inline-end: none; }
  .services-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process-grid { grid-template-columns: 1fr; }
  .header-actions .btn { display: none; }
  .logo-tag { display: none; }
  .form-grid { grid-template-columns: 1fr; }
  .calc-result { flex-direction: column; gap: 12px; }
  .hero-chips .chip { flex: 1 1 40%; }
}