:root {
  --platform-bg: #f6f8fb;
  --platform-surface: #ffffff;
  --platform-surface-2: #f9fbfd;
  --platform-ink: #0b1220;
  --platform-ink-2: #334155;
  --platform-muted: #64748b;
  --platform-line: #dbe3ee;
  --platform-line-strong: #c7d2e2;
  --platform-accent: #0f766e;
  --platform-accent-2: #0ea5a4;
  --platform-danger: #b42318;
  --platform-warning: #b45309;
  --platform-info: #0f5b99;
  --platform-radius-xs: 6px;
  --platform-radius-sm: 8px;
  --platform-radius-md: 10px;
  --platform-radius-lg: 14px;
  --platform-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --platform-shadow-md: 0 18px 60px rgba(15, 23, 42, 0.08);
  --platform-space-1: 4px;
  --platform-space-2: 8px;
  --platform-space-3: 12px;
  --platform-space-4: 16px;
  --platform-space-5: 20px;
  --platform-space-6: 24px;
  --platform-space-8: 32px;
  --platform-space-10: 40px;
  --platform-transition: 160ms ease;
}

body.page-auth,
body.page-platform {
  background:
    radial-gradient(900px 460px at 82% -12%, rgba(14, 165, 164, 0.12), transparent 68%),
    linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  color: var(--platform-ink);
}

body.page-platform {
  --platform-panel-bg: rgba(255, 255, 255, 0.92);
  --platform-card-bg: #ffffff;
  --platform-card-ink: #102033;
  --platform-card-muted: #526176;
}

body.page-auth .wrap,
body.page-platform .wrap {
  width: min(1280px, calc(100% - 32px));
}

body.page-auth section,
body.page-platform section {
  box-shadow: none;
}

.platform-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border: 1px solid var(--platform-line);
  border-radius: 999px;
  background: #ffffff;
  color: var(--platform-accent);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.platform-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid transparent;
  border-radius: var(--platform-radius-sm);
  font: inherit;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--platform-transition), background var(--platform-transition), border-color var(--platform-transition);
}

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

.platform-btn--primary {
  background: #0b1220;
  color: #ffffff;
}

.platform-btn--accent {
  background: var(--platform-accent-2);
  color: #052f2e;
}

.platform-btn--secondary {
  background: #eef2f7;
  border-color: #d9e2ef;
  color: var(--platform-ink);
}

.platform-btn--secondary:hover {
  background: #e2e8f0;
  border-color: #cbd5e1;
}

.platform-btn--ghost {
  background: #ffffff;
  border-color: var(--platform-line);
  color: var(--platform-ink);
}

.platform-btn--block {
  width: 100%;
}

.auth-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(390px, 0.66fr);
  gap: clamp(30px, 6vw, 86px);
  align-items: start;
  margin: 0;
  min-height: auto;
  padding: clamp(42px, 6vw, 86px) 0 76px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.auth-intro {
  padding: var(--platform-space-4) 0;
}

.auth-intro h1 {
  max-width: 10.5ch;
  color: var(--platform-ink);
  font-size: clamp(3.6rem, 7.5vw, 7.8rem);
  line-height: 0.94;
  letter-spacing: 0;
}

.auth-intro p {
  color: var(--platform-muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.auth-principles {
  display: grid;
  gap: 10px;
  max-width: 620px;
  margin-top: 24px;
}

.auth-principles div {
  display: grid;
  gap: 3px;
  padding: 14px;
  border: 1px solid var(--platform-line);
  border-radius: var(--platform-radius-md);
  background: rgba(255, 255, 255, 0.72);
}

.auth-principles strong {
  display: block;
  color: var(--platform-ink);
}

.auth-principles span {
  color: var(--platform-muted);
  font-size: 0.95rem;
}

.auth-card {
  margin-top: clamp(16px, 3vw, 34px);
  border: 1px solid var(--platform-line);
  border-radius: var(--platform-radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.86)),
    var(--platform-surface);
  box-shadow: var(--platform-shadow-md);
  padding: clamp(20px, 3vw, 30px);
}

.auth-card h2 {
  margin: 0;
  color: var(--platform-ink);
  font-size: clamp(1.55rem, 3vw, 2.05rem);
  line-height: 1.1;
}

.auth-card p {
  color: var(--platform-muted);
}

.auth-provider {
  display: grid;
  gap: 10px;
  margin: 20px 0;
}

.auth-google-icon {
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #ffffff;
  color: #0b1220;
  font-size: 0.78rem;
  font-weight: 900;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--platform-muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  height: 1px;
  flex: 1;
  background: var(--platform-line);
}

.platform-form {
  display: grid;
  gap: 14px;
}

.platform-field {
  display: grid;
  gap: 7px;
}

.platform-label {
  color: var(--platform-ink-2);
  font-size: 0.92rem;
  font-weight: 800;
}

.platform-input {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--platform-line-strong);
  border-radius: var(--platform-radius-sm);
  background: #ffffff;
  color: var(--platform-ink);
  font: inherit;
  transition: border-color var(--platform-transition), box-shadow var(--platform-transition), background var(--platform-transition);
}

.platform-input:focus {
  outline: none;
  border-color: var(--platform-accent-2);
  box-shadow: 0 0 0 4px rgba(14, 165, 164, 0.14);
}

.platform-input:user-invalid {
  border-color: var(--platform-danger);
}

.platform-help {
  color: var(--platform-muted);
  font-size: 0.88rem;
}

.platform-alert {
  padding: 12px 14px;
  border: 1px solid var(--platform-line);
  border-radius: var(--platform-radius-md);
  background: #ffffff;
  color: var(--platform-ink-2);
}

.platform-alert--error {
  border-color: #fecaca;
  background: #fff5f5;
  color: var(--platform-danger);
}

.platform-alert--info {
  border-color: #bfdbfe;
  background: #eff6ff;
  color: var(--platform-info);
}

.auth-footnote {
  margin-top: 16px;
  color: var(--platform-muted);
  font-size: 0.95rem;
}

.auth-footnote a {
  color: var(--platform-accent);
  font-weight: 800;
}

.platform-dashboard {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 26px;
  margin: 0;
  padding: 34px 0 64px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.platform-sidebar,
.platform-panel {
  border: 1px solid var(--platform-line);
  border-radius: var(--platform-radius-lg);
  background: var(--platform-panel-bg);
  box-shadow: var(--platform-shadow-sm);
}

.platform-sidebar {
  position: sticky;
  top: 94px;
  align-self: start;
  padding: 14px;
}

.platform-sidebar > strong {
  display: block;
  margin-top: 12px;
  color: var(--platform-ink);
  font-size: 1.06rem;
}

.platform-sidebar > p {
  margin: 8px 0 14px;
  color: var(--platform-muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.platform-sidebar .panel-subnav,
.platform-panel .panel-subnav {
  display: grid;
  gap: 6px;
  margin: 0 0 14px;
}

.platform-panel .panel-subnav {
  display: none;
}

.platform-sidebar a,
.platform-sidebar button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-height: 40px;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: var(--platform-radius-sm);
  background: transparent;
  color: var(--platform-ink-2);
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.platform-sidebar a[aria-current="page"],
.platform-sidebar a:hover,
.platform-sidebar button:hover {
  background: #eef6f7;
  border-color: #cde7ea;
  color: #0f766e;
}

.platform-panel {
  padding: clamp(18px, 3vw, 28px);
}

.platform-panel h1 {
  margin-top: 14px;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.platform-panel .local-note,
.platform-panel .local-card {
  border-color: var(--platform-line);
  border-radius: var(--platform-radius-md);
  background: var(--platform-card-bg);
  color: var(--platform-card-ink);
  box-shadow: none;
}

.platform-panel .local-note h2,
.platform-panel .local-note h3,
.platform-panel .local-card strong {
  color: var(--platform-card-ink);
}

.platform-panel .local-note p,
.platform-panel .local-note li,
.platform-panel .local-card span {
  color: var(--platform-card-muted);
}

.platform-panel .btn {
  min-height: 38px;
  padding: 9px 13px;
  border-radius: var(--platform-radius-sm);
  box-shadow: none;
}

.platform-panel .btn-primary {
  background: #0b1220;
  color: #ffffff;
}

.platform-panel .btn-ghost,
.platform-panel .logout-btn {
  background: #ffffff;
  border-color: var(--platform-line);
  color: var(--platform-ink);
}

.platform-panel .action-row,
.platform-panel .logout-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.platform-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.platform-metric {
  padding: 16px;
  border: 1px solid var(--platform-line);
  border-radius: var(--platform-radius-md);
  background: #ffffff;
}

.platform-metric strong {
  display: block;
  color: var(--platform-ink);
  font-size: 1.7rem;
}

.platform-metric span {
  color: var(--platform-muted);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

@media (prefers-color-scheme: dark) {
  body.page-platform[data-platform-dark="true"] {
    --platform-bg: #070b10;
    --platform-surface: #0f1722;
    --platform-surface-2: #111b28;
    --platform-ink: #eff6ff;
    --platform-ink-2: #d6e4f2;
    --platform-muted: #9aacbd;
    --platform-line: rgba(214, 228, 242, 0.16);
    --platform-line-strong: rgba(214, 228, 242, 0.24);
    --platform-panel-bg: #111a26;
    --platform-card-bg: #172231;
    --platform-card-ink: #eff6ff;
    --platform-card-muted: #d1dbea;
    background:
      radial-gradient(900px 460px at 82% -12%, rgba(14, 165, 164, 0.16), transparent 68%),
      linear-gradient(180deg, #070b10 0%, #0b111a 100%);
  }

  body.page-platform[data-platform-dark="true"] .site-header {
    background: rgba(7, 11, 16, 0.82);
    border-bottom-color: rgba(214, 228, 242, 0.14);
  }

  body.page-platform[data-platform-dark="true"] .platform-sidebar,
  body.page-platform[data-platform-dark="true"] .platform-panel,
  body.page-platform[data-platform-dark="true"] .platform-metric,
  body.page-platform[data-platform-dark="true"] .auth-principles div {
    background: rgba(15, 23, 34, 0.82);
  }

  body.page-platform[data-platform-dark="true"] .platform-input,
  body.page-platform[data-platform-dark="true"] .platform-btn--ghost,
  body.page-platform[data-platform-dark="true"] .platform-kicker {
    background: rgba(255, 255, 255, 0.04);
    color: var(--platform-ink);
  }

  body.page-platform[data-platform-dark="true"] .platform-panel .btn-primary {
    background: #eaf2ff;
    color: #08111f;
  }

  body.page-platform[data-platform-dark="true"] .platform-panel .btn-ghost,
  body.page-platform[data-platform-dark="true"] .platform-panel .logout-btn {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--platform-line);
    color: var(--platform-ink);
  }

  body.page-platform[data-platform-dark="true"] .platform-sidebar .panel-subnav a,
  body.page-platform[data-platform-dark="true"] .platform-sidebar .panel-subnav a[aria-current="page"],
  body.page-platform[data-platform-dark="true"] .platform-sidebar .panel-subnav a:hover,
  body.page-platform[data-platform-dark="true"] .platform-sidebar button,
  body.page-platform[data-platform-dark="true"] .platform-sidebar button:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(214, 228, 242, 0.16);
    color: #eef6ff;
  }

  body.page-platform[data-platform-dark="true"] .platform-sidebar .panel-subnav a[aria-current="page"],
  body.page-platform[data-platform-dark="true"] .platform-sidebar .panel-subnav a:hover {
    background: #eaf2ff;
    border-color: #eaf2ff;
    color: #08111f;
  }

  body.page-platform[data-platform-dark="true"] .platform-panel h1,
  body.page-platform[data-platform-dark="true"] .platform-panel h2,
  body.page-platform[data-platform-dark="true"] .platform-panel h3,
  body.page-platform[data-platform-dark="true"] .platform-panel p,
  body.page-platform[data-platform-dark="true"] .platform-panel li {
    text-shadow: none;
  }

  body.page-platform[data-platform-dark="true"] .platform-panel > p {
    color: #eef6ff;
  }

  body.page-platform[data-platform-dark="true"] .platform-panel .local-note {
    border-color: rgba(214, 228, 242, 0.2);
  }
}

@media (max-width: 980px) {
  .auth-shell,
  .platform-dashboard {
    grid-template-columns: 1fr;
  }

  .auth-shell {
    min-height: auto;
  }

  .auth-intro h1 {
    max-width: 9ch;
  }

  .platform-sidebar {
    position: static;
  }

  .platform-metrics {
    grid-template-columns: 1fr;
  }
}