/* Minimal, dependency-free stylesheet for subs-gateway (no external CDNs). */

:root {
  color-scheme: light dark;
  --bg: #f6f7fb;
  --surface: #ffffff;
  --text: #1c2230;
  --muted: #5d6678;
  --border: #dfe3ec;
  --accent: #3457d5;
  --accent-text: #ffffff;
  --danger: #b42318;
  --danger-bg: #fdecea;
  --success: #0f6b45;
  --success-bg: #e7f6ee;
  --radius: 14px;
  --shadow: 0 10px 30px rgb(28 34 48 / 8%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151c;
    --surface: #1b202b;
    --text: #eef1f7;
    --muted: #a4adc0;
    --border: #2c3442;
    --accent: #7d95ff;
    --accent-text: #10131a;
    --danger: #ff938a;
    --danger-bg: #3a1d1b;
    --success: #7ee2b1;
    --success-bg: #13291f;
    --shadow: 0 10px 30px rgb(0 0 0 / 35%);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.55;
}

a {
  color: var(--accent);
}

.site-header,
.site-footer,
.container {
  width: min(960px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.container {
  flex: 1;
  padding: 1rem 0 3rem;
}

.hero {
  padding: 2.5rem 0 1.5rem;
  max-width: 46rem;
}

.hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

.lead {
  color: var(--muted);
  font-size: 1.1rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}

.feature h2 {
  margin-top: 0;
  font-size: 1.05rem;
}

.form-card {
  max-width: 30rem;
  margin: 1.5rem auto;
}

.form-card h1 {
  margin-top: 0;
}

label {
  display: block;
  font-weight: 600;
  margin: 1rem 0 0.35rem;
}

input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
}

input:focus-visible,
.button:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 45%, transparent);
  outline-offset: 2px;
}

.button {
  display: inline-block;
  margin-top: 1.25rem;
  padding: 0.7rem 1.15rem;
  font: inherit;
  font-weight: 600;
  color: var(--accent-text);
  background: var(--accent);
  border: 1px solid transparent;
  border-radius: 10px;
  text-decoration: none;
  cursor: pointer;
}

.button-secondary {
  color: var(--text);
  background: transparent;
  border-color: var(--border);
}

.button-small {
  margin-top: 0;
  padding: 0.45rem 0.8rem;
  font-size: 0.92rem;
}

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

.hint {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: 10px;
  border: 1px solid transparent;
}

.alert-error {
  color: var(--danger);
  background: var(--danger-bg);
  border-color: color-mix(in srgb, var(--danger) 30%, transparent);
}

.alert-success {
  color: var(--success);
  background: var(--success-bg);
  border-color: color-mix(in srgb, var(--success) 30%, transparent);
}

.cabinet-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.cabinet-head h1 {
  margin-top: 0;
}

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 0;
}

.facts div {
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.facts dt {
  color: var(--muted);
  font-size: 0.85rem;
}

.facts dd {
  margin: 0.2rem 0 0;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.empty-state {
  margin-top: 1rem;
}

.empty-state h2 {
  margin-top: 0;
}

.site-footer {
  padding: 1.5rem 0 2rem;
  color: var(--muted);
  font-size: 0.88rem;
  border-top: 1px solid var(--border);
}