:root {
  --bg: #07080c;
  --card: #12141a;
  --line: rgba(255, 255, 255, 0.07);
  --text: #f3f5f8;
  --muted: #9aa3b2;
  --blue: #3b82f6;
  --blue-2: #2563eb;
  --green: #34d399;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body {
  font-family: Inter, system-ui, sans-serif;
  min-height: 100%;
}

a { color: inherit; }
::selection { background: var(--blue); color: #fff; }

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(900px 520px at 88% 8%, rgba(59, 130, 246, 0.16), transparent 58%),
    radial-gradient(700px 400px at 10% 70%, rgba(59, 130, 246, 0.05), transparent 60%);
  z-index: 0;
}

.nav, main, .footer { position: relative; z-index: 1; }

.wrap {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 14px;
  z-index: 40;
  display: flex;
  justify-content: center;
  padding: 0 16px;
  margin-bottom: 8px;
}
.nav-inner {
  width: min(1120px, 100%);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  padding: 8px 10px 8px 18px;
  background: rgba(16, 18, 24, 0.78);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: blur(18px);
}
.nav-right {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 13px;
  white-space: nowrap;
}
.logo svg { color: #e8eaef; }
.nav-links {
  display: flex;
  gap: 22px;
}
.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
}
.nav-links a:hover { color: var(--text); }
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  color: var(--text);
  font-size: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: 0;
  border-radius: 10px;
  padding: 8px 14px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}
.btn-lg { padding: 12px 22px; font-size: 15px; }
.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.28);
}
.btn-primary:hover { background: var(--blue-2); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.14);
}
.btn-ghost:hover { border-color: rgba(255, 255, 255, 0.28); }
.nav-cta { padding: 9px 16px; box-shadow: none; }
.btn-text {
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
}
.btn-text:hover { color: var(--blue); }

.hero {
  padding: 88px 0 56px;
}
.hero.tight { padding: 48px 0 8px; }
h1 {
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.045em;
  margin: 0 0 18px;
  font-weight: 700;
  max-width: 16ch;
  background: linear-gradient(92deg, #fff 0%, #fff 42%, #8b93a5 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead, .sub, .muted, .fine, .mission {
  color: var(--muted);
  line-height: 1.6;
}
.lead { font-size: 18px; max-width: 46ch; margin: 0 0 28px; }
.hero-actions { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }

.section { padding: 56px 0; }
h2 {
  font-size: clamp(30px, 3.6vw, 44px);
  letter-spacing: -0.035em;
  margin: 0 0 12px;
  font-weight: 700;
}
.sub { margin: 0 0 28px; max-width: 54ch; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 8px;
}
.section-head .sub { margin: 0 0 18px; text-align: right; }

.speed-card,
.feature-row article,
.steps article,
.plan,
.cards-4 article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
}
.speed-card {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
  padding: 28px 32px;
  margin-bottom: 14px;
  align-items: center;
}
.speed-card h3, .feature-row h3, .steps h3 { margin: 0 0 8px; font-size: 22px; }
.speed-card p, .feature-row p, .steps p, .cards-4 p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}
.speed-chart {
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
  gap: 28px;
  height: 160px;
  padding-right: 12px;
}
.bar-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  height: 100%;
  justify-content: flex-end;
}
.bar {
  width: 42px;
  border-radius: 8px 8px 4px 4px;
}
.bar-dim { height: 42%; background: #2a303c; }
.bar-glow {
  height: 92%;
  background: linear-gradient(180deg, #60a5fa, #2563eb);
  box-shadow: 0 0 28px rgba(59, 130, 246, 0.45);
}
.bar-col span { font-size: 12px; color: var(--muted); }

.feature-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.feature-row article { padding: 24px; }
.mission {
  margin: 28px 0 0;
  max-width: 62ch;
  font-size: 14px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 28px;
}
.steps article {
  padding: 22px 22px 24px;
  position: relative;
  min-height: 170px;
}
.steps span {
  position: absolute;
  top: 18px;
  right: 18px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.plan {
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
  padding: 28px 22px 22px;
}
.plan h3 { margin: 0; font-size: 16px; font-weight: 500; color: var(--muted); }
.plan .btn { margin-top: 16px; width: 100%; padding: 11px 14px; }
.price { font-size: 40px; font-weight: 700; margin: 10px 0 0; letter-spacing: -0.03em; color: var(--text); }
.price small { font-size: 18px; color: var(--muted); }
.plan-blue {
  border-color: rgba(59, 130, 246, 0.7);
  box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.25), 0 0 36px rgba(37, 99, 235, 0.18);
}
.tag {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
}
.tag-pop {
  left: 50%;
  right: auto;
  top: -11px;
  transform: translateX(-50%);
  background: var(--blue);
  color: #fff;
}
.tag-deal { background: #166534; color: #bbf7d0; }
.fine { margin-top: 16px; font-size: 13px; }

.invite {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 28px 32px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
}
.invite .sub { margin: 0; }

.devices {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 0 0 18px;
}
.devices a {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 14px;
  padding: 16px 16px;
  color: var(--text);
  font-size: 15px;
}
.devices a:hover { border-color: rgba(59, 130, 246, 0.45); }
.devices svg { color: #c5cad3; flex-shrink: 0; }

.faq-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
}
.faq details:first-child { border-top: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  color: var(--muted);
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
}
.faq details[open] summary::after { content: "×"; }
.faq p { color: var(--muted); margin: 10px 0 0; }

.cta { padding: 48px 0 80px; }
.cta h2 {
  font-size: clamp(36px, 5vw, 64px);
  max-width: 12ch;
  margin-bottom: 16px;
}

.cards-4 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.cards-4 article { padding: 22px; }
.cards-4 article > .btn,
.cards-4 article > .hero-actions { margin-top: 18px; }
.cards-4 h3 { margin: 0 0 8px; font-size: 18px; }

.legal { padding: 48px 0 80px; max-width: 72ch; }
.legal h1 { max-width: none; background: none; color: var(--text); font-size: clamp(32px, 4vw, 48px); }
.legal p { color: var(--muted); line-height: 1.7; }

.footer {
  position: relative;
  padding: 56px 0 28px;
  border-top: 1px solid var(--line);
  overflow: hidden;
}
.footer-mark {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -18px;
  text-align: center;
  font-size: clamp(48px, 14vw, 160px);
  font-weight: 800;
  letter-spacing: -0.06em;
  color: rgba(255, 255, 255, 0.035);
  pointer-events: none;
  user-select: none;
  line-height: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr 1.1fr;
  gap: 28px;
  position: relative;
}
.footer p, .footer a { color: var(--muted); font-size: 14px; }
.footer a { display: block; text-decoration: none; margin: 6px 0; }
.footer a:hover { color: var(--text); }
.footer h4 {
  margin: 0 0 10px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text);
}
.copy { margin: 36px auto 0; color: var(--muted); font-size: 13px; position: relative; }

#plans, #faq, #invite, #contacts, #ios, #android, #windows, #macos, #linux, #tv, #router {
  scroll-margin-top: 88px;
}

.admin-body { background: #10140c; color: #f3f1e7; font-family: Inter, sans-serif; }
.admin-login {
  max-width: 360px;
  margin: 18vh auto;
  display: grid;
  gap: 12px;
  padding: 24px;
  border: 1px solid #333;
}
.admin-login input, .admin-login button,
.admin-row input, .admin-row button,
.admin-block textarea, .admin-block button,
.admin-bar button {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid #333;
  background: #0c0f0a;
  color: #f3f1e7;
}
.admin-login button, .admin-row button, .admin-block button {
  background: var(--blue);
  color: #fff;
  cursor: pointer;
}
.err { color: #fb7185; }
.admin-bar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid #333;
}
.admin-section { padding: 24px; }
.admin-row { display: grid; grid-template-columns: 1.4fr repeat(4, 1fr) auto; gap: 8px; margin-bottom: 8px; }
.admin-block { display: grid; gap: 8px; margin-bottom: 22px; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.admin-table th, .admin-table td { text-align: left; padding: 8px; border-bottom: 1px solid #333; }

@media (max-width: 980px) {
  .speed-card, .feature-row, .steps, .plans, .devices, .faq-grid, .footer-grid, .cards-4 {
    grid-template-columns: 1fr 1fr;
  }
  .section-head { display: block; }
  .section-head .sub { text-align: left; }
  .invite { flex-direction: column; align-items: flex-start; }
  .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 62px;
    right: 16px;
    left: 16px;
    flex-direction: column;
    gap: 12px;
    padding: 16px 18px;
    background: #12141a;
    border: 1px solid var(--line);
    border-radius: 16px;
  }
  .nav-links.open { display: flex; }
}
@media (max-width: 640px) {
  .wrap { width: calc(100% - 32px); }
  .speed-card, .feature-row, .steps, .plans, .devices, .faq-grid, .footer-grid, .cards-4 {
    grid-template-columns: 1fr;
  }
  .hero { padding-top: 48px; }
  h1 { max-width: none; }
  .speed-chart { justify-content: flex-start; height: 120px; }
}

.manage {
  min-height: calc(100vh - 180px);
  display: flex;
  justify-content: center;
  padding: 48px 16px 72px;
}
.manage-card {
  width: min(460px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px 24px;
}
.manage-card h1 { font-size: 28px; margin: 0 0 16px; }
.manage-card .kicker {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 12px;
  margin: 0 0 8px;
}
.manage-status {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 13px;
  margin-bottom: 16px;
}
.manage-status.on { background: rgba(52,211,153,.14); color: var(--green); }
.manage-status.off { background: rgba(251,113,133,.12); color: #fb7185; }
.manage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 0 0 18px;
}
.manage-grid dt { color: var(--muted); font-size: 12px; }
.manage-grid dd { margin: 4px 0 0; font-weight: 600; }
.manage-label { display: grid; gap: 6px; color: var(--muted); font-size: 13px; margin: 8px 0 12px; }
.manage-label input {
  width: 100%;
  font: inherit;
  background: #0c0e12;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
}
.manage-actions { display: grid; gap: 8px; margin: 12px 0; }
.manage-reset { margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line); }
.danger-text { color: #fb7185; }
.flash { padding: 10px 12px; border-radius: 10px; }
.flash.ok { background: rgba(52,211,153,.12); color: var(--green); }
.flash.err { background: rgba(251,113,133,.12); color: #fb7185; }