*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --midnight: #0b1120;
  --charcoal: #151d2e;
  --slate-dark: #1e293b;
  --deep-slate: #2d3a4f;
  --silver: #94a3b8;
  --light: #cbd5e1;
  --snow: #f8fafc;
  --teal: #14b8a6;
  --teal-dark: #0d9488;
  --teal-dim: rgba(20, 184, 166, 0.15);
  --emerald: #10b981;
  --coral: #f43f5e;
}

body {
  margin: 0;
  font-family: "Inter", -apple-system, system-ui, sans-serif;
  font-size: 16px;
  background: var(--midnight);
  color: var(--light);
  line-height: 1.6;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

h1,
h2,
h3 {
  color: var(--snow);
  letter-spacing: -0.02em;
  line-height: 1.2;
  font-weight: 700;
}

h2,
h3 {
  font-weight: 600;
}

a {
  color: var(--teal);
  text-decoration: none;
}

a:hover {
  color: var(--snow);
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 17, 32, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--deep-slate);
}

.site-nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.site-nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.site-nav-links a {
  color: var(--light);
  font-size: 14px;
  font-weight: 500;
}

.site-nav-links a:hover {
  color: var(--snow);
}

.site-nav-brand {
  display: inline-flex;
  align-items: center;
}

.site-nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-nav-menu-button {
  display: none;
  border: 1px solid var(--deep-slate);
  border-radius: 8px;
  background: var(--charcoal);
  color: var(--light);
  height: 36px;
  width: 36px;
  align-items: center;
  justify-content: center;
}

.site-nav-menu {
  display: none;
}

.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--teal-dark);
  background: var(--teal-dark);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.15s ease, border-color 0.15s ease;
}

.site-btn:hover {
  background: var(--teal);
  border-color: var(--teal);
  color: #fff;
  transform: translateY(-1px);
}

.site-btn-secondary {
  background: transparent;
  border-color: var(--deep-slate);
  color: var(--light);
}

.site-btn-secondary:hover {
  background: var(--teal-dim);
  border-color: var(--teal);
  color: var(--snow);
}

.site-main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 64px 24px 96px;
}

.site-main > section + section {
  margin-top: 24px;
}

.site-main-account {
  max-width: 800px;
}

.site-main-auth {
  max-width: 520px;
}

.card {
  background: var(--charcoal);
  border: 1px solid var(--deep-slate);
  border-radius: 14px;
  padding: 24px;
}

.site-stack {
  display: grid;
  gap: 20px;
}

.hero-title {
  color: var(--snow);
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.1;
  margin: 0 0 12px;
}

.hero-subtitle {
  color: var(--silver);
  font-size: 18px;
  max-width: 640px;
}

.muted {
  color: var(--silver);
}

.mono {
  font-family: "JetBrains Mono", monospace;
}

pre {
  margin: 0;
  border: 1px solid var(--deep-slate);
  border-radius: 12px;
  background: var(--slate-dark);
  color: var(--light);
  padding: 16px;
  overflow-x: auto;
}

label {
  color: var(--light);
  font-size: 14px;
  font-weight: 500;
}

input:not([type="checkbox"]):not([type="radio"]),
select,
textarea {
  width: 100%;
  margin-top: 8px;
  padding: 10px 12px;
  border: 1px solid var(--deep-slate);
  border-radius: 8px;
  background: var(--slate-dark);
  color: var(--snow);
  font: inherit;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 2px var(--teal-dim);
}

.form-row {
  margin-bottom: 16px;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.site-input-shell {
  margin-top: 8px;
  padding: 12px;
  border: 1px solid var(--deep-slate);
  border-radius: 8px;
  background: var(--slate-dark);
}

.site-alert {
  margin-bottom: 16px;
  border-radius: 8px;
  border: 1px solid var(--deep-slate);
  padding: 10px 12px;
  font-size: 14px;
}

.site-alert-notice {
  border-color: rgba(16, 185, 129, 0.5);
  color: #6ee7b7;
  background: rgba(16, 185, 129, 0.12);
}

.site-alert-alert {
  border-color: rgba(244, 63, 94, 0.5);
  color: #fda4af;
  background: rgba(244, 63, 94, 0.12);
}

.site-footer {
  border-top: 1px solid var(--deep-slate);
  background: rgba(11, 17, 32, 0.65);
}

.site-footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--silver);
  font-size: 14px;
}

.site-footer-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.inline-form {
  margin: 0;
}

.site-table {
  width: 100%;
  border-collapse: collapse;
}

.site-table th,
.site-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--deep-slate);
  text-align: left;
  vertical-align: top;
}

.site-table th {
  color: var(--silver);
  font-size: 14px;
  font-weight: 600;
}

@media (max-width: 700px) {
  .site-nav-links {
    gap: 14px;
  }
}

@media (max-width: 600px) {
  .site-nav-links,
  .site-nav-right .site-btn {
    display: none;
  }

  .site-nav-menu-button {
    display: inline-flex;
  }

  .site-nav.is-open .site-nav-menu {
    display: block;
    border-top: 1px solid var(--deep-slate);
    background: rgba(11, 17, 32, 0.98);
  }

  .site-nav-menu-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 8px 24px 14px;
    display: grid;
  }

  .site-nav-menu a {
    color: var(--light);
    border-bottom: 1px solid var(--deep-slate);
    padding: 12px 0;
    font-size: 14px;
  }

  .site-nav-menu a:last-child {
    border-bottom: 0;
  }

  .site-nav-menu .inline-form {
    margin-top: 12px;
  }

  .site-nav-menu .site-btn {
    width: 100%;
  }

  .site-main {
    padding-top: 48px;
    padding-bottom: 72px;
  }
}