:root {
  --bg: #06080e;
  --bg-card: rgba(15, 21, 35, 0.85);
  --bg-elev: rgba(24, 33, 54, 0.75);
  --border: rgba(148, 163, 184, 0.14);
  --border-hi: rgba(56, 189, 248, 0.45);
  --fg: #f1f5f9;
  --mut: #94a3b8;
  --acc: #2563eb;
  --acc2: #06b6d4;
  --ok: #10b981;
  --warn: #f59e0b;
  --err: #ef4444;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(37, 99, 235, 0.16), transparent 38%),
    radial-gradient(circle at 88% 18%, rgba(6, 182, 212, 0.12), transparent 38%),
    radial-gradient(circle at 50% 90%, rgba(16, 185, 129, 0.06), transparent 45%);
  color: var(--fg);
  font: 15px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: #38bdf8; text-decoration: none; transition: 0.18s; }
a:hover { color: #7dd3fc; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 22px; width: 100%; }

/* Верхняя техническая полоса */
.topbar {
  background: rgba(3, 5, 10, 0.9);
  border-bottom: 1px solid var(--border);
  font-size: 12.5px;
  color: var(--mut);
  padding: 6px 0;
}
.topbar .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.topbar-items { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

/* Шапка и навигация */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(6, 8, 14, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
header.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 14px;
  flex-wrap: wrap;
  padding-top: 10px;
  padding-bottom: 10px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 800;
  font-size: 18.5px;
  color: #fff;
  letter-spacing: -0.3px;
}
.brand:hover { color: #fff; }
.badge-region {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(6, 182, 212, 0.16);
  color: #22d3ee;
  border: 1px solid rgba(6, 182, 212, 0.35);
}
nav.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.nav-link {
  padding: 7px 12px;
  border-radius: 8px;
  color: var(--mut);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  background: transparent;
}
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, 0.04); }
.nav-link.active {
  color: #fff;
  background: rgba(37, 99, 235, 0.18);
  border-color: rgba(59, 130, 246, 0.4);
}
.header-actions { display: flex; gap: 10px; align-items: center; }

/* Кнопки */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 9px;
  font-weight: 600;
  font-size: 14px;
  background: linear-gradient(135deg, var(--acc), var(--acc2));
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.12);
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(37, 99, 235, 0.28);
  transition: 0.18s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 22px rgba(6, 182, 212, 0.4); color: #fff; }
.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  box-shadow: none;
  color: var(--fg);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); border-color: var(--border-hi); }
.btn-sm { padding: 7px 13px; font-size: 13px; }
.btn-full { width: 100%; }

/* Вкладки-экраны (SPA + Multi-page) */
.view-section { display: none; padding: 36px 0 56px; }
.view-section.active { display: block; }

/* Hero */
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 32px;
  align-items: center;
  margin-bottom: 42px;
}
.pill-ok {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 5px 13px;
  border-radius: 99px;
  font-size: 12.5px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #a7f3d0;
  margin-bottom: 18px;
}
.dot-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 10px var(--ok);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
.hero-title {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 16px;
}
.text-grad {
  background: linear-gradient(90deg, #60a5fa, #22d3ee, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  color: var(--mut);
  font-size: 16.5px;
  margin-bottom: 24px;
  max-width: 590px;
}
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.hero-badges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}
.mini-stat .v { font-weight: 700; font-size: 16px; color: #fff; }
.mini-stat .l { font-size: 12px; color: var(--mut); }

/* Карточки и сетки */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  backdrop-filter: blur(12px);
}
.card-hi { border-color: rgba(56, 189, 248, 0.35); }
.card h3 { font-size: 17.5px; margin-bottom: 8px; color: #fff; }
.card p { color: var(--mut); font-size: 14px; }

.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 18px; margin-top: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 20px; margin-top: 20px; }

.sec-head { margin: 36px 0 18px; }
.sec-head h2 { font-size: 24px; letter-spacing: -0.4px; margin-bottom: 6px; }
.sec-head p { color: var(--mut); font-size: 14.5px; }

/* Телеметрия и график */
canvas#telemetryCanvas {
  width: 100%;
  height: 155px;
  display: block;
  margin: 14px 0;
  border-radius: 10px;
  background: rgba(3, 5, 10, 0.65);
  border: 1px solid var(--border);
}
.telemetry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.t-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
}
.t-box .v { font-size: 17px; font-weight: 700; color: #fff; }
.t-box .l { font-size: 11.5px; color: var(--mut); }

/* Тарифные карточки */
.tariff-card { display: flex; flex-direction: column; justify-content: space-between; position: relative; }
.tariff-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 99px;
  background: rgba(37, 99, 235, 0.25);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.4);
}
.spec-list { list-style: none; margin: 14px 0 18px; }
.spec-list li {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.07);
  font-size: 13.5px;
}
.spec-list li span:first-child { color: var(--mut); }
.spec-list li span:last-child { color: #fff; font-weight: 600; }
.price-tag { font-size: 28px; font-weight: 800; color: #38bdf8; margin-bottom: 14px; }
.price-tag small { font-size: 13px; color: var(--mut); font-weight: 400; }

/* Калькулятор */
.calc-layout { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: 22px; margin-top: 18px; }
.range-row { margin-bottom: 18px; }
.range-top { display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 14px; font-weight: 600; }
input[type="range"] { width: 100%; accent-color: #22d3ee; cursor: pointer; }
.calc-summary {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(160deg, rgba(23, 35, 58, 0.9), rgba(11, 17, 30, 0.95));
}

/* Таблицы и статус */
.data-table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 14px; }
.data-table th, .data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.data-table th { color: var(--mut); font-weight: 600; font-size: 12.5px; text-transform: uppercase; }
.status-ok {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 99px;
  font-size: 12px;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Терминал Looking Glass и API */
.lg-controls { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.inp, .sel, .txt {
  width: 100%;
  padding: 10px 13px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: rgba(4, 7, 13, 0.8);
  color: #fff;
  font-size: 14px;
}
.inp:focus, .sel:focus, .txt:focus { outline: none; border-color: #38bdf8; }
.lg-Controls-inp { flex: 1; min-width: 200px; }
pre.term {
  background: #04060b;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  overflow-x: auto;
  color: #a7f3d0;
  font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  min-height: 170px;
}
.tab-bar { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.code-tab {
  padding: 6px 13px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--mut);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}
.code-tab.active { background: rgba(56, 189, 248, 0.16); color: #38bdf8; border-color: rgba(56, 189, 248, 0.45); }

/* ==================== СЛОЖНЫЙ МАСТЕР РЕГИСТРАЦИИ И ЗАКАЗА ==================== */
.wizard-shell {
  max-width: 880px;
  margin: 0 auto;
}
.stepper {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 22px;
}
.step-item {
  padding: 11px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  font-size: 13px;
  color: var(--mut);
}
.step-item strong { display: block; font-size: 11.5px; text-transform: uppercase; margin-bottom: 2px; }
.step-item.active {
  border-color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
  color: #fff;
}
.step-item.done {
  border-color: rgba(16, 185, 129, 0.45);
  background: rgba(16, 185, 129, 0.08);
  color: #a7f3d0;
}
.wiz-pane { display: none; }
.wiz-pane.active { display: block; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-bottom: 15px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; color: #cbd5e1; }
.form-hint { font-size: 12px; color: var(--mut); margin-top: 4px; }

.entity-switch { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.entity-btn {
  flex: 1;
  min-width: 170px;
  padding: 10px 12px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--mut);
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  text-align: center;
}
.entity-btn.active {
  background: rgba(37, 99, 235, 0.2);
  border-color: #3b82f6;
  color: #fff;
}

.os-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(155px, 1fr)); gap: 10px; margin-bottom: 16px; }
.os-card {
  padding: 11px 12px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  font-size: 13px;
}
.os-card strong { display: block; color: #fff; }
.os-card span { font-size: 11.5px; color: var(--mut); }
.os-card.active {
  border-color: #22d3ee;
  background: rgba(6, 182, 212, 0.14);
}

/* Шкала сложности пароля */
.pwd-meter {
  height: 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  margin-top: 7px;
  overflow: hidden;
}
.pwd-bar { height: 100%; width: 0%; transition: 0.25s; }
.pwd-s0 { width: 5%; background: var(--err); }
.pwd-s1 { width: 30%; background: var(--err); }
.pwd-s2 { width: 60%; background: var(--warn); }
.pwd-s3 { width: 85%; background: #38bdf8; }
.pwd-s4 { width: 100%; background: var(--ok); }

/* Чекбоксы комплаенса */
.chk-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 13.5px;
  color: #cbd5e1;
  cursor: pointer;
}
.chk-row input { margin-top: 4px; accent-color: #38bdf8; }

/* Антибот PoW верификация */
.pow-box {
  padding: 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(3, 5, 10, 0.7);
  margin: 14px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.pow-status { font-size: 13px; color: var(--mut); }
.pow-status.ok { color: #34d399; font-weight: 600; }

.alert-box {
  display: none;
  padding: 12px 14px;
  border-radius: 9px;
  font-size: 13.5px;
  margin-bottom: 14px;
}
.alert-err { background: rgba(239, 68, 68, 0.14); border: 1px solid rgba(239, 68, 68, 0.4); color: #fca5a5; }
.alert-ok { background: rgba(16, 185, 129, 0.14); border: 1px solid rgba(16, 185, 129, 0.4); color: #a7f3d0; }
.alert-warn { background: rgba(245, 158, 11, 0.14); border: 1px solid rgba(245, 158, 11, 0.4); color: #fde68a; }
.alert-box.show { display: block; }

.hidden { display: none !important; }
.wiz-actions { display: flex; justify-content: space-between; gap: 12px; margin-top: 20px; }

/* Модальное окно входа */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 4, 9, 0.78);
  backdrop-filter: blur(7px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 90;
  padding: 18px;
}
.modal-overlay.open { display: flex; }
.modal-card { max-width: 450px; width: 100%; }

/* Подвал */
footer.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  background: rgba(4, 6, 11, 0.85);
  padding: 32px 0;
  font-size: 13px;
  color: var(--mut);
}
footer.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; }

@media (max-width: 860px) {
  .hero-grid, .calc-layout, .form-grid, .stepper { grid-template-columns: 1fr; }
}