:root {
  color-scheme: light;
  --bg: #eef2f7;
  --surface: #ffffff;
  --surface-soft: #f7f9fc;
  --text: #111827;
  --muted: #5b6474;
  --border: #d8dee9;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --accent-soft: #dbeafe;
  --success: #047857;
  --success-soft: #d1fae5;
  --danger: #b91c1c;
  --danger-soft: #fee2e2;
  --warning: #b45309;
  --warning-soft: #fef3c7;
  --shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
  --radius: 20px;
  --radius-small: 12px;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0b1120;
    --surface: #111827;
    --surface-soft: #172033;
    --text: #f3f4f6;
    --muted: #aab3c2;
    --border: #2b364a;
    --accent: #60a5fa;
    --accent-strong: #93c5fd;
    --accent-soft: #1e3a5f;
    --success: #6ee7b7;
    --success-soft: #064e3b;
    --danger: #fca5a5;
    --danger-soft: #7f1d1d;
    --warning: #fcd34d;
    --warning-soft: #78350f;
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  }
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

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

body {
  min-height: 100dvh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.18), transparent
    32rem),
    radial-gradient(circle at bottom right, rgba(14, 165, 233, 0.12),
    transparent 30rem),
    var(--bg);
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  letter-spacing: -0.04em;
}

h2 {
  font-size: clamp(1.1rem, 4vw, 1.45rem);
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

.app {
  width: min(100%, 760px);
  min-height: 100dvh;
  margin: 0 auto;
  padding:
    max(20px, env(safe-area-inset-top))
    16px
    max(24px, env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 2px;
}

.tagline {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.95rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.token-panel {
  display: grid;
  gap: 10px;
  background: var(--surface-soft);
}

form.card {
  display: grid;
  gap: 14px;
}

label,
legend {
  color: var(--text);
  font-size: 0.93rem;
  font-weight: 650;
}

input,
select,
button,
.button-link {
  font: inherit;
}

input,
select {
  width: 100%;
  min-height: 48px;
  margin-top: 7px;
  padding: 11px 13px;
  color: var(--text);
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-small);
  outline: none;
}

input::placeholder {
  color: var(--muted);
  opacity: 0.8;
}

input:focus-visible,
select:focus-visible,
button:focus-visible,
.button-link:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--accent-soft);
  outline-offset: 2px;
  border-color: var(--accent);
}

.options {
  border: 1px solid var(--border);
  border-radius: var(--radius-small);
  background: var(--surface-soft);
}

.options summary {
  padding: 14px;
  cursor: pointer;
  color: var(--muted);
  font-weight: 650;
  user-select: none;
}

.options .grid {
  padding: 0 14px 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
}

.field {
  display: block;
  min-width: 0;
}

.radio-field {
  margin: 0;
  padding: 0;
  border: 0;
}

.radio-field legend {
  margin-bottom: 7px;
  padding: 0;
}

.radio {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 38px;
  font-weight: 500;
}

.radio input {
  width: 20px;
  min-height: 20px;
  margin: 0;
  accent-color: var(--accent);
}

.inline {
  display: flex;
  gap: 10px;
}

.inline input {
  flex: 1 1 auto;
}

.inline button {
  flex: 0 0 auto;
  margin-top: 7px;
}

button,
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms
    ease;
}

button:active,
.button-link:active {
  transform: translateY(1px);
}

button:disabled {
  cursor: wait;
  opacity: 0.55;
}

.primary {
  color: #ffffff;
  background: var(--accent);
}

.primary:hover {
  background: var(--accent-strong);
}

.secondary {
  color: var(--text);
  background: var(--surface-soft);
  border-color: var(--border);
}

.secondary:hover {
  border-color: var(--accent);
}

.compact {
  min-height: 40px;
  padding: 8px 13px;
  font-size: 0.9rem;
}

.link-button {
  justify-self: start;
  min-height: auto;
  padding: 0;
  color: var(--muted);
  background: transparent;
  border: 0;
  font-size: 0.9rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.error {
  padding: 11px 13px;
  color: var(--danger);
  background: var(--danger-soft);
  border-radius: var(--radius-small);
  font-size: 0.92rem;
}

.hint,
.meta,
.footer {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.status-card {
  display: grid;
  gap: 13px;
}

.status-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.eyebrow {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge {
  flex: 0 0 auto;
  padding: 5px 9px;
  color: var(--muted);
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.status-card[data-status="ready"] .badge {
  color: var(--success);
  background: var(--success-soft);
  border-color: transparent;
}

.status-card[data-status="failed"] .badge {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: transparent;
}

.status-card[data-status="processing"] .badge,
.status-card[data-status="downloading_source"] .badge,
.status-card[data-status="waiting_for_source"] .badge {
  color: var(--warning);
  background: var(--warning-soft);
  border-color: transparent;
}

progress {
  width: 100%;
  height: 12px;
  overflow: hidden;
  border: 0;
  border-radius: 999px;
  background: var(--surface-soft);
  appearance: none;
}

progress::-webkit-progress-bar {
  background: var(--surface-soft);
}

progress::-webkit-progress-value {
  background: linear-gradient(90deg, var(--accent), #0ea5e9);
  border-radius: 999px;
}

progress::-moz-progress-bar {
  background: linear-gradient(90deg, var(--accent), #0ea5e9);
  border-radius: 999px;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.84rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.actions > * {
  flex: 1 1 180px;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding: 8px 4px 0;
}

@media (max-width: 560px) {
  .card {
    padding: 16px;
    border-radius: 16px;
  }

  .topbar {
    align-items: center;
  }

  .inline {
    flex-direction: column;
  }

  .inline button {
    margin-top: 0;
  }

  .actions > * {
    flex-basis: 100%;
  }

  .footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}