:root {
  --sng-font-ui: "Avenir Next", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --sng-bg: #f3f7ff;
  --sng-bg-top: #f9fbff;
  --sng-ink: #0b1220;
  --sng-muted: #5a6887;
  --sng-surface: #ffffff;
  --sng-surface-soft: #eef4ff;
  --sng-border: #d7e1f4;
  --sng-primary: #2563eb;
  --sng-primary-hover: #1f56cf;
  --sng-link: #1f56cf;
  --sng-success: #15713a;
  --sng-error: #b42318;
  --sng-warning-bg: #fff6ea;
  --sng-shadow: 0 24px 48px #1f2b4522;
  --sng-focus: 0 0 0 3px #2563eb59;
  --sng-radius-lg: 18px;
  --sng-radius-md: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --sng-bg: #0d1422;
    --sng-bg-top: #0b1220;
    --sng-ink: #e7efff;
    --sng-muted: #9fb0d1;
    --sng-surface: #121c2d;
    --sng-surface-soft: #172338;
    --sng-border: #2a3a55;
    --sng-primary: #3f7df9;
    --sng-primary-hover: #5b91ff;
    --sng-link: #8db6ff;
    --sng-success: #8de6a5;
    --sng-error: #ff9a9a;
    --sng-warning-bg: #3c2d1d;
    --sng-shadow: 0 24px 48px #00000055;
  }
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--sng-bg);
}

body.sng-console {
  min-height: 100%;
  margin: 0;
  color: var(--sng-ink);
  font-family: var(--sng-font-ui);
  line-height: 1.55;
  background:
    radial-gradient(circle at 8% 0%, #2563eb26 0, #0000 42%),
    radial-gradient(circle at 95% 12%, #22c55e1c 0, #0000 45%),
    linear-gradient(180deg, var(--sng-bg-top), var(--sng-bg));
}

.sng-console .site-shell {
  width: 100%;
  padding: 12px;
}

.sng-console .site-header,
.sng-console .page-container,
.sng-console .site-footer {
  width: min(1180px, 100%);
  margin-inline: auto;
}

.sng-console .site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 16px;
  color: var(--sng-ink);
  background: color-mix(in srgb, var(--sng-surface) 92%, transparent);
  border: 1px solid var(--sng-border);
  border-radius: var(--sng-radius-lg);
  box-shadow: 0 8px 24px #1c284212;
  backdrop-filter: blur(10px);
}

.sng-console .brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--sng-ink);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: .01em;
  text-decoration: none;
}

.sng-console .brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: #fff;
  font-size: .75rem;
  letter-spacing: .08em;
  background: linear-gradient(135deg, #2563eb, #1e40af);
  border: 1px solid #6d9cff;
  border-radius: 11px;
  box-shadow: 0 8px 20px #2563eb42;
}

.sng-console .site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sng-console .site-nav a {
  padding: 7px 11px;
  color: var(--sng-muted);
  font-size: .85rem;
  font-weight: 700;
  text-decoration: none;
  background: var(--sng-surface-soft);
  border: 1px solid transparent;
  border-radius: 9px;
}

.sng-console .site-nav a:hover {
  color: var(--sng-link);
  border-color: var(--sng-border);
}

.sng-console .page-container {
  padding: 26px 4px 42px;
}

.sng-console h1 {
  margin: 0 0 20px;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -.035em;
}

.sng-console h2 {
  margin: 0 0 12px;
  font-size: 1.12rem;
  letter-spacing: -.01em;
}

.sng-console a {
  color: var(--sng-link);
}

.sng-console .card {
  margin: 14px 0;
  padding: clamp(17px, 2.4vw, 24px);
  overflow-x: auto;
  background: var(--sng-surface);
  border: 1px solid var(--sng-border);
  border-radius: var(--sng-radius-lg);
  box-shadow: var(--sng-shadow);
}

.sng-console .login-panel {
  width: min(520px, 100%);
  margin-top: 28px;
}

.sng-console form.grid,
.sng-console fieldset.grid {
  display: grid;
  gap: 13px;
  max-width: 760px;
}

.sng-console fieldset {
  padding: 16px;
  border: 1px solid var(--sng-border);
  border-radius: var(--sng-radius-md);
}

.sng-console label {
  display: grid;
  gap: 6px;
  color: var(--sng-muted);
  font-size: .88rem;
  font-weight: 700;
}

.sng-console input,
.sng-console textarea,
.sng-console select,
.sng-console button {
  min-height: 42px;
  padding: 9px 11px;
  color: var(--sng-ink);
  font: inherit;
  border-radius: 10px;
}

.sng-console input[type="checkbox"],
.sng-console input[type="radio"] {
  width: auto;
  min-height: auto;
  padding: 0;
  accent-color: var(--sng-primary);
}

.sng-console label:has(input[type="checkbox"]),
.sng-console label:has(input[type="radio"]) {
  display: flex;
  align-items: center;
  flex-direction: row;
  gap: 8px;
}

.sng-console input,
.sng-console textarea,
.sng-console select {
  width: 100%;
  background: var(--sng-surface-soft);
  border: 1px solid var(--sng-border);
  outline: none;
}

.sng-console input:focus,
.sng-console textarea:focus,
.sng-console select:focus {
  border-color: var(--sng-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--sng-primary) 24%, transparent);
}

.sng-console .btn {
  display: inline-flex;
  width: fit-content;
  min-height: auto;
  align-items: center;
  justify-content: center;
  appearance: none;
  cursor: pointer;
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  background: var(--sng-primary);
  border: 0;
  border-radius: 999px;
  padding: 10px 16px;
  box-shadow: 0 8px 20px #2563eb59;
  transition: transform .04s ease, box-shadow .2s ease, background .2s ease;
}

.sng-console .btn:hover {
  background: var(--sng-primary-hover);
}

.sng-console .btn:focus {
  outline: none;
  box-shadow: var(--sng-focus);
}

.sng-console .btn:active {
  transform: translateY(1px);
}

.sng-console .btn-secondary {
  color: var(--sng-primary);
  background: transparent;
  border: 2px solid color-mix(in srgb, var(--sng-primary) 55%, transparent);
  box-shadow: none;
}

.sng-console .btn-secondary:hover {
  background: color-mix(in srgb, var(--sng-primary) 8%, transparent);
}

.sng-console .btn-danger {
  color: #fff;
  background: #ef4444;
  box-shadow: 0 8px 20px #ef444440;
}

.sng-console .btn-danger:hover {
  background: #ef4444;
  filter: brightness(1.05);
}

.sng-console table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
}

.sng-console th,
.sng-console td {
  padding: 11px 10px;
  text-align: left;
  border-bottom: 1px solid var(--sng-border);
}

.sng-console th {
  color: var(--sng-muted);
  font-size: .75rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.sng-console code {
  padding: 2px 6px;
  overflow-wrap: anywhere;
  background: var(--sng-surface-soft);
  border: 1px solid var(--sng-border);
  border-radius: 6px;
}

.sng-console .token {
  overflow-wrap: anywhere;
  background: var(--sng-warning-bg);
}

.sng-console .error {
  color: var(--sng-error);
  font-weight: 700;
}

.sng-console .success {
  color: var(--sng-success);
  font-weight: 700;
}

.sng-console .site-footer {
  padding: 18px 16px 10px;
  color: var(--sng-muted);
  font-size: .86rem;
  border-top: 1px solid var(--sng-border);
}

@media (max-width: 680px) {
  .sng-console .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .sng-console .page-container {
    padding-top: 22px;
  }
}