:root {
  color-scheme: dark;
  --bg: #0a1020;
  --panel: rgba(12, 19, 38, 0.88);
  --panel-border: rgba(119, 141, 255, 0.28);
  --text: #edf2ff;
  --muted: #95a3c7;
  --accent: #73f0c6;
  --accent-2: #7ba7ff;
  --danger: #ff7b91;
  --warning: #ffd67c;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "SF Pro Display", "Inter", system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(115, 240, 198, 0.18), transparent 26%),
    radial-gradient(circle at bottom right, rgba(123, 167, 255, 0.18), transparent 32%),
    linear-gradient(160deg, #050913, #10182d 65%, #121f33);
  color: var(--text);
}

.shell {
  padding: 32px 20px 56px;
}

.card {
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 28px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  backdrop-filter: blur(14px);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.center-card {
  max-width: 640px;
  margin-top: 12vh;
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 12px;
  color: var(--accent);
}

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

.grid {
  display: grid;
  gap: 18px;
}

.grid.two {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.stack {
  display: grid;
  gap: 14px;
}

.input,
.button,
.textarea {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(148, 170, 255, 0.24);
  padding: 14px 16px;
  font: inherit;
}

.input,
.textarea {
  background: rgba(9, 14, 27, 0.88);
  color: var(--text);
}

.textarea {
  min-height: 140px;
  resize: vertical;
}

.button {
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #07101d;
  font-weight: 700;
  border: none;
  transition: transform 120ms ease, box-shadow 120ms ease;
  box-shadow: 0 12px 30px rgba(115, 240, 198, 0.22);
}

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

.button.secondary {
  background: rgba(20, 30, 57, 0.82);
  color: var(--text);
  border: 1px solid rgba(148, 170, 255, 0.18);
  box-shadow: none;
}

.button.danger {
  background: rgba(255, 123, 145, 0.16);
  color: #ffd8df;
  border: 1px solid rgba(255, 123, 145, 0.26);
  box-shadow: none;
}

.status {
  border-radius: 18px;
  padding: 14px 16px;
  background: rgba(9, 14, 27, 0.7);
  border: 1px solid rgba(148, 170, 255, 0.12);
  color: var(--muted);
  white-space: pre-wrap;
}

.status.success {
  border-color: rgba(115, 240, 198, 0.3);
  color: #cff8ea;
}

.status.error {
  border-color: rgba(255, 123, 145, 0.35);
  color: #ffd8df;
}

.status.warning {
  border-color: rgba(255, 214, 124, 0.35);
  color: #ffe7b2;
}

.dev-only[hidden] {
  display: none;
}

.hero {
  display: grid;
  gap: 10px;
  margin-bottom: 26px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.02;
}

.hero p {
  margin: 0;
  max-width: 62ch;
}

.section {
  border-radius: 22px;
  padding: 22px;
  background: rgba(8, 13, 24, 0.72);
  border: 1px solid rgba(148, 170, 255, 0.12);
}

.section h2,
.section h3 {
  margin: 0 0 10px;
}

.row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.row > * {
  flex: 1;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
  background: rgba(115, 240, 198, 0.12);
  color: #d9fff1;
}

.code {
  margin: 0;
  padding: 16px;
  border-radius: 18px;
  font-family: "SFMono-Regular", ui-monospace, monospace;
  background: #060a13;
  border: 1px solid rgba(148, 170, 255, 0.14);
  overflow: auto;
}

.list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.list li + li {
  margin-top: 10px;
}