:root {
  --bg: #121212;
  --panel-border: #313131;
  --input-bg: #313131;
  --footer-bg: #313131;
  --text: #e5e7eb;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --accent-strong: #b45309;
  --accent-soft: #fbbf24;
  --error: #f87171;
  --error-bg: rgba(248, 113, 113, 0.12);
  --error-border: rgba(248, 113, 113, 0.45);
  --warn: #fbbf24;
  --warn-bg: rgba(251, 191, 36, 0.10);
  --warn-border: rgba(251, 191, 36, 0.40);
  --ok: #34d399;
  --ok-bg: rgba(52, 211, 153, 0.10);
  --ok-border: rgba(52, 211, 153, 0.40);
}

* { box-sizing: border-box; }

html, body { background: var(--bg); }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-soft); text-decoration: none; }
a:hover { color: var(--accent); }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.92em;
  padding: 0.1em 0.35em;
  border-radius: 0.35em;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

pre {
  white-space: pre-wrap;
  word-break: break-word;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--panel-border);
  border-radius: 1rem;
  color: var(--text);
}

h1, h2, h3 { color: var(--text); font-weight: 700; line-height: 1.2; }
h2 { font-size: 1.5rem; margin: 0 0 0.25rem; }
p { margin: 0 0 1rem; color: var(--text-muted); }
p:last-child { margin-bottom: 0; }
ul { margin: 0 0 1rem; padding-left: 1.25rem; color: var(--text-muted); }
ul li { margin-bottom: 0.35rem; }

/* Layout */
.app { flex: 1 0 auto; display: flex; flex-direction: column; }
header.site-header { padding: 1.25rem 1rem; }
header.site-header .container {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
header.site-header .brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  font-weight: 600;
  font-size: 1.05rem;
}
header.site-header .brand .logo {
  width: 40px;
  height: 40px;
  display: block;
}
header.site-header .version {
  margin-left: auto;
  color: var(--text-dim);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

main { flex: 1 0 auto; padding: 0 1rem 3rem; }
.container { max-width: 720px; margin: 0 auto; }

footer.site-footer {
  background: var(--footer-bg);
  color: var(--text-muted);
  padding: 1.25rem 1rem;
  margin-top: auto;
}
footer.site-footer .container {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
}
footer.site-footer .brand { color: var(--text); font-weight: 600; }
footer.site-footer .sep { width: 1px; height: 1.25rem; background: rgba(255, 255, 255, 0.15); }

/* Banners */
.banner {
  padding: 0.85rem 1rem;
  border-radius: 1rem;
  margin-bottom: 0.85rem;
  border: 1px solid;
  font-size: 0.92rem;
  line-height: 1.5;
}
.banner strong { color: var(--text); }
.banner.warn { background: var(--warn-bg); color: var(--warn); border-color: var(--warn-border); }
.banner.ok { background: var(--ok-bg); color: var(--ok); border-color: var(--ok-border); }
.banner.error { background: var(--error-bg); color: var(--error); border-color: var(--error-border); }
.banner.warn strong,
.banner.ok strong,
.banner.error strong { color: inherit; filter: brightness(1.15); }

/* Panel (matches Panel.js: rounded-3xl, border-2, p-6) */
.card {
  background: transparent;
  border: 2px solid var(--panel-border);
  border-radius: 1.5rem;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}
@media (min-width: 640px) { .card { padding: 2rem; } }

/* Page header (matches PageHeader.js) */
.page-header {
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.page-header .subtitle {
  font-size: 0.7rem;
  text-align: center;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 0.5rem;
}
.page-header h2 {
  text-align: center;
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1;
  margin: 0;
}

/* Progress steps */
.progress { display: flex; gap: 0.4rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.progress .step {
  flex: 1;
  min-width: 6rem;
  padding: 0.55rem 0.75rem;
  border-radius: 999px;
  background: transparent;
  border: 1px solid var(--panel-border);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: all 0.2s ease-out;
}
.progress .step.active {
  background: var(--accent-strong);
  color: #fff;
  border-color: var(--accent-strong);
  box-shadow: 0 4px 14px -4px rgba(180, 83, 9, 0.6);
}
.progress .step.done {
  color: var(--ok);
  border-color: var(--ok-border);
  background: var(--ok-bg);
}

/* Forms */
label {
  display: block;
  font-weight: 500;
  margin: 1rem 0 0.4rem;
  color: var(--text);
  font-size: 0.9rem;
}
label:first-child { margin-top: 0; }
label.inline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.5rem 0;
  cursor: pointer;
}

input[type=text],
input[type=password],
input[type=number],
textarea,
select {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  padding: 0.65rem 1rem;
  border-radius: 1.5rem;
  border: 1px solid transparent;
  background: var(--input-bg);
  color: var(--text);
  transition: box-shadow 0.15s ease-out, border-color 0.15s ease-out;
}
input::placeholder, textarea::placeholder { color: var(--text-dim); }
input:focus, textarea:focus, select:focus { outline: none; box-shadow: 0 0 0 2px var(--accent-hover); }
input[type=checkbox] { width: 1.05rem; height: 1.05rem; accent-color: var(--accent-strong); }
textarea {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88rem;
  min-height: 9rem;
  line-height: 1.5;
  border-radius: 1rem;
}

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.85rem; }
.row.thirds { grid-template-columns: 2fr 1fr; }
@media (max-width: 540px) { .row, .row.thirds { grid-template-columns: 1fr; } }

.table-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 0.85rem;
}
.table-grid > div { min-width: 0; }
.table-grid label {
  margin: 0 0 0.25rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 500;
}
.table-grid input { padding: 0.45rem 0.85rem; font-size: 0.88rem; }
@media (max-width: 540px) { .table-grid { grid-template-columns: 1fr; } }

small.hint {
  color: var(--text-muted);
  display: block;
  margin-top: 0.5rem;
  font-size: 0.82rem;
  line-height: 1.5;
}

details {
  margin: 1rem 0;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--panel-border);
  border-radius: 1rem;
}
details > summary {
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  list-style: none;
}
details > summary::-webkit-details-marker { display: none; }
details > summary::before {
  content: '\25B8';
  display: inline-block;
  margin-right: 0.5rem;
  transition: transform 0.15s ease-out;
}
details[open] > summary::before { transform: rotate(90deg); }
details > *:not(summary) { margin-top: 0.65rem; }

/* Buttons (matches button.css + Button.js) */
.button-row { display: flex; gap: 0.6rem; justify-content: flex-end; margin-top: 1.5rem; flex-wrap: wrap; }
.button-row.split { justify-content: space-between; }
button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  padding: 0.55rem 1.5rem;
  min-height: 2.5rem;
  border: 1px solid transparent;
  background: var(--accent-strong);
  color: #fff;
  border-radius: 999px;
  transition: opacity 0.2s ease-out, transform 0.15s ease-out, background 0.2s ease-out;
}
button:hover:not([disabled]) { opacity: 0.85; }
button:active:not([disabled]) { transform: scale(0.97); }
button.secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--panel-border);
  font-weight: 500;
}
button.secondary:hover:not([disabled]) { background: rgba(255, 255, 255, 0.05); opacity: 1; }
button[disabled] { opacity: 0.5; cursor: not-allowed; }

/* Tabs (segmented control) */
.tabs {
  display: inline-flex;
  padding: 0.25rem;
  gap: 0.25rem;
  margin-bottom: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
}
.tabs button {
  background: transparent;
  color: var(--text-muted);
  border: none;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  min-height: auto;
  font-weight: 500;
  font-size: 0.88rem;
}
.tabs button:hover:not(.active):not([disabled]) {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  opacity: 1;
}
.tabs button.active { background: var(--accent-strong); color: #fff; }
@media (max-width: 540px) {
  .tabs { display: flex; flex-wrap: wrap; }
  .tabs button { flex: 1 0 auto; }
}

/* Success state (rendered by app.js after finalize) */
.success {
  text-align: center;
  padding: 1rem 0;
}
.success .check {
  width: 4rem;
  height: 4rem;
  margin: 0 auto 1rem;
  border-radius: 9999px;
  background: var(--ok-bg);
  border: 2px solid var(--ok-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ok);
  font-size: 2rem;
  line-height: 1;
}
.success h2 { text-align: center; margin-bottom: 0.5rem; }
.success p { text-align: center; }