:root {
  color-scheme: light dark;
  --bg: #f6f5f2;
  --card: #fff;
  --fg: #141414;
  --muted: #5c5c5c;
  --border: #e4e1da;
  --accent: #1a56db;
  --accent-fg: #fff;
  --accent-hover: #1547b8;
  --danger: #b42318;
  --danger-bg: #fef3f2;
  --danger-hover: #fde8e6;
  --ok: #067647;
  --radius: 12px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0e0f;
    --card: #171718;
    --fg: #f3f3f3;
    --muted: #a0a0a0;
    --border: #2c2c2e;
    --accent: #6b9dff;
    --accent-fg: #0a0a0a;
    --accent-hover: #8cb4ff;
    --danger-bg: #2a1210;
    --danger-hover: #3a1815;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}

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

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.hero {
  margin-bottom: 28px;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 8px;
}

.eyebrow a {
  text-decoration: none;
  color: inherit;
}

h1 {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 650;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

.lead {
  color: var(--muted);
  margin: 0;
  font-size: 1.05rem;
}

.nav-links {
  margin: 14px 0 0;
  font-size: 14px;
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 16px;
}

.card h2 {
  margin: 0 0 16px;
  font-size: 1.05rem;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.card-head h2 {
  margin: 0;
}

.subh {
  margin: 20px 0 10px;
  font-size: 0.95rem;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--muted);
}

.optional {
  font-weight: 400;
  opacity: 0.8;
}

input,
textarea,
select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  font: inherit;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent);
  outline-offset: 1px;
  border-color: var(--accent);
}

textarea {
  resize: vertical;
}

.input-row {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}

.input-row input {
  margin-top: 0;
  flex: 1;
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 560px) {
  .row {
    grid-template-columns: 1fr;
  }
}

.hint {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 14px;
}

button,
.btn-link {
  appearance: none;
  border: none;
  background: var(--accent);
  color: var(--accent-fg);
  font: inherit;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease,
    transform 0.08s ease,
    opacity 0.15s ease,
    box-shadow 0.15s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

button:hover:not(:disabled):not(.is-busy),
.btn-link:hover {
  background: var(--accent-hover);
}

button:active:not(:disabled):not(.is-busy),
.btn-link:active {
  transform: scale(0.97);
}

button:focus-visible,
.btn-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

button.is-busy {
  cursor: wait;
  opacity: 0.85;
  pointer-events: none;
}

button.ghost,
.btn-link.ghost {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
}

button.ghost:hover:not(:disabled):not(.is-busy),
.btn-link.ghost:hover {
  background: color-mix(in srgb, var(--fg) 6%, transparent);
  border-color: color-mix(in srgb, var(--fg) 28%, var(--border));
}

button.small {
  padding: 6px 10px;
  font-size: 13px;
}

button.danger {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger);
}

button.danger:hover:not(:disabled):not(.is-busy) {
  background: var(--danger-hover);
}

button.is-ok {
  background: color-mix(in srgb, var(--ok) 18%, transparent);
  color: var(--ok);
  border: 1px solid color-mix(in srgb, var(--ok) 40%, transparent);
}

.btn-spinner {
  width: 0.95em;
  height: 0.95em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
  animation: nw-spin 0.65s linear infinite;
  opacity: 0.9;
}

@keyframes nw-spin {
  to {
    transform: rotate(360deg);
  }
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 12px;
}

.err {
  color: var(--danger);
  font-size: 14px;
  margin: 10px 0 0;
}

.ok {
  color: var(--ok);
  font-size: 14px;
}

.muted {
  color: var(--muted);
  font-size: 14px;
}

.preview {
  min-height: 80px;
}

.preview.is-loading {
  opacity: 0.65;
  pointer-events: none;
}

.flash {
  font-size: 13px;
  color: var(--muted);
  min-height: 1.2em;
  margin: 0 0 8px;
}

.flash.is-err {
  color: var(--danger);
}

.flash.is-ok {
  color: var(--ok);
}