:root {
  color-scheme: light;
  --bg: #f4f9ff;
  --panel: rgba(255, 255, 255, 0.88);
  --panel-solid: #ffffff;
  --text: #0e2035;
  --muted: #657a93;
  --blue: #147cff;
  --blue-dark: #075bb8;
  --cyan: #48d6ff;
  --green: #12b981;
  --line: rgba(133, 169, 205, 0.28);
  --soft: #eaf6ff;
  --shadow: 0 20px 60px rgba(15, 89, 150, 0.14);
  --shadow-soft: 0 10px 32px rgba(15, 89, 150, 0.09);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #07111f;
  --panel: rgba(10, 26, 46, 0.86);
  --panel-solid: #0b1a2d;
  --text: #eef7ff;
  --muted: #98aec7;
  --blue: #4aa3ff;
  --blue-dark: #79c4ff;
  --cyan: #64e6ff;
  --green: #5ee0ad;
  --line: rgba(160, 197, 232, 0.20);
  --soft: rgba(48, 132, 255, 0.16);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --shadow-soft: 0 12px 34px rgba(0, 0, 0, 0.24);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 80% -10%, rgba(72, 214, 255, 0.26), transparent 28rem),
    radial-gradient(circle at 0% 10%, rgba(20, 124, 255, 0.18), transparent 26rem),
    linear-gradient(180deg, var(--bg) 0%, var(--bg) 100%);
}

a { color: var(--blue-dark); text-decoration: none; }
.hidden { display: none !important; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 5vw, 72px);
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  color: white;
  font-weight: 900;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 12px 28px rgba(20, 124, 255, 0.30);
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.nav-link, .theme-toggle {
  min-height: 40px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--muted);
  font-weight: 800;
}
.nav-link.active, .nav-link:hover, .theme-toggle:hover {
  color: var(--blue-dark);
  background: var(--soft);
}

.theme-toggle {
  border: 1px solid var(--line);
  background: var(--panel);
  cursor: pointer;
}

.user-pill {
  max-width: 240px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--blue-dark);
  background: var(--soft);
  border: 1px solid var(--line);
  font-weight: 900;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

main { min-height: 72vh; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 36px;
  align-items: center;
  padding: clamp(44px, 8vw, 96px) clamp(18px, 5vw, 72px) 42px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(52px, 8vw, 104px);
  line-height: 0.92;
  letter-spacing: 0;
}

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.55;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue-dark);
  font-weight: 900;
  text-transform: uppercase;
  font-size: 12px;
}

.hero-actions, .row-actions { display: flex; gap: 12px; flex-wrap: wrap; }

button, .link-button {
  border: 0;
  border-radius: 8px;
  padding: 13px 18px;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.primary {
  color: white;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  box-shadow: 0 14px 30px rgba(22, 136, 255, 0.26);
}

.secondary {
  color: var(--blue-dark);
  background: var(--soft);
  border: 1px solid var(--line);
}

button:disabled { opacity: 0.55; cursor: not-allowed; }

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.trust-row span, .badge {
  padding: 6px 10px;
  color: var(--blue-dark);
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 900;
}

.hero-panel {
  display: grid;
  gap: 14px;
}

.premium-card, .signal-card, .tariff-card, .panel, .metric, .feature-card, .referral-note {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.premium-card {
  padding: 24px;
}

.premium-card h2 {
  margin: 14px 0 8px;
  font-size: 28px;
}

.premium-card p { color: var(--muted); line-height: 1.55; }

.signal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.signal-card {
  display: grid;
  gap: 8px;
  padding: 18px;
  min-height: 92px;
}

.signal-card strong { color: var(--green); font-size: 22px; }

.section {
  padding: 42px clamp(18px, 5vw, 72px);
}

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  padding: 22px;
  display: grid;
  gap: 10px;
}

.feature-card span {
  color: var(--blue-dark);
  font-weight: 900;
}

.feature-card h3 { margin: 0; font-size: 22px; }
.feature-card p { margin: 0; color: var(--muted); line-height: 1.5; }

.section-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}

.section h1, .section h2, .panel h2 {
  margin: 0 0 14px;
}

.tariff-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.tariff-groups {
  display: grid;
  gap: 22px;
}

.tariff-group {
  display: grid;
  gap: 14px;
}

.tariff-group-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  padding: 0 2px;
}

.tariff-group-title h3 {
  margin: 0;
  font-size: 24px;
}

.tariff-group-title p {
  max-width: 520px;
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
  text-align: right;
}

.tariff-card {
  display: grid;
  gap: 12px;
  padding: 20px;
}

.tariff-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.tariff-head h3 { margin: 0; font-size: 20px; }

.price { font-size: 34px; font-weight: 950; }
.tariff-card p, .muted { color: var(--muted); }

.mini-list {
  display: grid;
  gap: 6px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.35;
  font-size: 14px;
}

.split, .referral-note {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.9fr);
  gap: 24px;
  align-items: center;
}

.referral-note {
  margin: 42px clamp(18px, 5vw, 72px);
  padding: 24px;
}

.steps {
  display: grid;
  gap: 12px;
}

.steps div {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border-radius: 8px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.steps b {
  display: grid;
  place-items: center;
  min-width: 34px;
  height: 34px;
  border-radius: 8px;
  color: white;
  background: var(--blue);
}

.steps.compact div { background: var(--soft); box-shadow: none; }

.cabinet {
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  gap: 22px;
  padding: 34px clamp(18px, 5vw, 72px);
}

.cabinet-menu, .panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
  padding: 20px;
}

.cabinet-menu {
  align-self: start;
  position: sticky;
  top: 88px;
  display: grid;
  gap: 8px;
}

.cabinet-menu a {
  padding: 10px;
  color: var(--muted);
  border-radius: 8px;
  font-weight: 800;
}
.cabinet-menu a:hover { background: var(--soft); color: var(--blue-dark); }

.cabinet-content { display: grid; gap: 16px; }

.cabinet-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.85fr);
  gap: 18px;
  align-items: center;
  background: linear-gradient(135deg, color-mix(in srgb, var(--panel-solid) 72%, var(--blue) 28%), var(--panel));
}

.cabinet-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(32px, 5vw, 52px);
}

.cabinet-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.cabinet-stats div {
  display: grid;
  gap: 4px;
  padding: 12px;
  border-radius: 8px;
  background: var(--soft);
  border: 1px solid var(--line);
}

.cabinet-stats span { color: var(--muted); font-size: 12px; }
.cabinet-stats strong { font-size: 20px; }

.panel-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
}

.panel-heading h2,
.panel-heading .eyebrow {
  margin-bottom: 0;
}

.account-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.account-panel h2,
.account-panel p {
  margin: 0;
}

.login-form {
  display: grid;
  gap: 12px;
}

.login-main-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.code-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.login-providers {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.provider-button,
.provider-soon {
  min-height: 38px;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 900;
}

.provider-button {
  color: var(--blue-dark);
  background: var(--soft);
  border: 1px solid var(--line);
}

.provider-soon {
  color: var(--muted);
  background: color-mix(in srgb, var(--panel-solid) 80%, var(--soft) 20%);
  border: 1px solid var(--line);
}

.compact-done .login-form {
  display: none;
}

input, select {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: var(--panel-solid);
  font: inherit;
}

label {
  display: grid;
  gap: 7px;
  color: var(--text);
  font-weight: 900;
}

.subscription-box {
  display: grid;
  gap: 16px;
}

.status-dot {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--green);
  background: color-mix(in srgb, var(--green) 13%, transparent);
  border: 1px solid color-mix(in srgb, var(--green) 34%, transparent);
  font-weight: 900;
}

code {
  display: block;
  padding: 12px;
  color: var(--text);
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow-wrap: anywhere;
}

.pay-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.pay-form button,
.pay-form .notice {
  grid-column: 1 / -1;
}

.notice {
  padding: 12px 14px;
  color: var(--text);
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  line-height: 1.45;
}

.notice.error {
  color: #b42318;
  background: #fff2f2;
  border-color: #ffd0d0;
}

html[data-theme="dark"] .notice.error {
  color: #ffb4aa;
  background: rgba(180, 35, 24, 0.18);
  border-color: rgba(255, 180, 170, 0.26);
}

.server-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.server-list div {
  display: grid;
  gap: 5px;
  padding: 14px;
  border-radius: 8px;
  background: var(--soft);
  border: 1px solid var(--line);
}

.server-list span { color: var(--muted); font-size: 14px; }

.narrow { max-width: 980px; margin: 0 auto; }
.admin-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.metric {
  padding: 18px;
  display: grid;
  gap: 8px;
}
.metric span { color: var(--muted); }
.metric strong { font-size: 32px; }

.legal p { line-height: 1.65; color: var(--muted); }
.legal h2 { margin-top: 26px; }

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  padding: 28px clamp(18px, 5vw, 72px);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer > div:first-child {
  display: grid;
  gap: 4px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

@media (max-width: 980px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .hero, .split, .cabinet, .cabinet-hero, .referral-note { grid-template-columns: 1fr; }
  .features, .tariff-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cabinet-menu { position: static; }
  .tariff-group-title { align-items: start; flex-direction: column; }
  .tariff-group-title p { text-align: left; }
}

@media (max-width: 640px) {
  .features, .signal-grid, .tariff-grid, .admin-grid, .pay-form, .login-main-row, .server-list, .cabinet-stats {
    grid-template-columns: 1fr;
  }
  .account-panel, .panel-heading { align-items: start; flex-direction: column; }
  .hero h1 { font-size: 54px; }
  .lead { font-size: 17px; }
  nav { width: 100%; }
  .nav-link, .theme-toggle { flex: 1; justify-content: center; text-align: center; }
}