:root {
  --bg: #07111b;
  --bg-soft: #0d1a2b;
  --panel: rgba(13, 23, 39, 0.88);
  --line: rgba(255, 255, 255, 0.08);
  --text: #f5f7fb;
  --muted: #9fb0c8;
  --accent: #4fd1c5;
  --accent-2: #4f8cff;
  --success: #34d399;
  --danger: #fb7185;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(79, 140, 255, 0.16), transparent 24%),
    radial-gradient(circle at top right, rgba(79, 209, 197, 0.12), transparent 20%),
    linear-gradient(180deg, #050b12 0%, #08101a 100%);
}

a { color: inherit; text-decoration: none; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(4, 8, 15, 0.65);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-inner,
.footer-inner {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand { font-weight: 800; letter-spacing: 0.02em; }

.main-nav,
.footer-links,
.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.main-nav a:not(.btn),
.footer-links a { color: var(--muted); }
.main-nav a:not(.btn):hover,
.footer-links a:hover { color: var(--text); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 12px 28px rgba(79, 140, 255, 0.25);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
}

.btn-full { width: 100%; }

.section { padding: 34px 0; }
.hero { padding: 42px 0 20px; }

.hero-grid,
.register-grid,
.cabinet-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 20px;
}

.hero-card,
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero-main,
.hero-side,
.join-box,
.info-card,
.feature-card,
.register-info,
.register-form-box,
.cabinet-main,
.cabinet-side { padding: 28px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #d7e4f8;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  font-size: clamp(36px, 6vw, 64px);
  line-height: 0.98;
  letter-spacing: -0.04em;
  margin: 18px 0 14px;
}

h2 {
  font-size: clamp(28px, 3vw, 40px);
  letter-spacing: -0.03em;
  margin-bottom: 10px;
}

h3 { font-size: 24px; margin-bottom: 10px; }

p, li, label span { color: var(--muted); line-height: 1.7; }
.section-head { margin-bottom: 18px; }

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

.check-list { margin: 18px 0 0; padding-left: 20px; }
.compact-list { display: grid; gap: 10px; }

.join-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.register-page,
.cabinet-page { padding: 30px 0 50px; }

.register-form { display: grid; gap: 16px; }
.register-form label { display: grid; gap: 8px; }

input {
  width: 100%;
  min-height: 52px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 0 16px;
  font: inherit;
}

input:focus {
  outline: 2px solid rgba(79, 140, 255, 0.45);
  border-color: rgba(79, 140, 255, 0.6);
}

.checkbox-row {
  display: flex !important;
  align-items: flex-start;
  gap: 12px;
}

.checkbox-row input {
  width: 18px;
  min-height: 18px;
  margin-top: 5px;
  padding: 0;
}

.alert {
  padding: 14px 16px;
  border-radius: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}

.alert-success {
  color: #d9fff3;
  background: rgba(52, 211, 153, 0.14);
  border: 1px solid rgba(52, 211, 153, 0.25);
}

.alert-error {
  color: #ffe1e7;
  background: rgba(251, 113, 133, 0.14);
  border: 1px solid rgba(251, 113, 133, 0.24);
}

.alert a { color: var(--text); text-decoration: underline; }
.form-links {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
}
.form-links a { color: var(--text); }

.account-chip {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  color: var(--muted);
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.profile-item {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255,255,255,.035);
  border: 1px solid rgba(255,255,255,.06);
}

.profile-item span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.profile-item strong {
  display: block;
  color: var(--text);
  font-size: 18px;
  word-break: break-word;
}

.site-footer { padding: 16px 0 34px; }

@media (max-width: 980px) {
  .hero-grid,
  .register-grid,
  .cabinet-grid,
  .cards-grid {
    grid-template-columns: 1fr;
  }

  .join-box,
  .header-inner,
  .footer-inner { align-items: flex-start; flex-direction: column; }

  .profile-grid { grid-template-columns: 1fr; }
}

@media (max-width: 780px) {
  .hero-main,
  .hero-side,
  .join-box,
  .info-card,
  .feature-card,
  .register-info,
  .register-form-box,
  .cabinet-main,
  .cabinet-side { padding: 20px; border-radius: 20px; }

  h1 { font-size: 40px; line-height: 1.02; }

  .main-nav,
  .footer-links,
  .hero-actions,
  .form-links { width: 100%; }

  .main-nav .btn,
  .hero-actions .btn,
  .footer-links a { width: 100%; }
}


.api-box {
  align-items: flex-start;
}

.api-list {
  display: grid;
  gap: 10px;
}

.api-list code {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 12px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  color: var(--text);
}

.profile-item {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255,255,255,.035);
  border: 1px solid rgba(255,255,255,.06);
}

.profile-item span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
}

.profile-item strong {
  display: block;
  font-size: 18px;
  line-height: 1.4;
}