:root {
  --bg: #0f1115;
  --card: #181b22;
  --card-border: #272b35;
  --text: #e6e8ec;
  --muted: #9aa0ab;
  --accent: #3ddc84; /* Android green */
  --accent-press: #2fae67;
  --error-bg: #2a1416;
  --error-border: #5c1a1f;
  --error-text: #ff6b6b;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f5f7;
    --card: #ffffff;
    --card-border: #e0e2e8;
    --text: #1a1c21;
    --muted: #5d636e;
    --error-bg: #fde9ea;
    --error-border: #f3b4b8;
    --error-text: #c0341d;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

/* Header */
header h1 {
  margin: 0 0 0.25rem;
  font-size: 2rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

header h1 .subtitle {
  color: var(--accent);
  font-size: 1.5rem;
}

.intro {
  color: var(--muted);
  margin-top: 0.75rem;
}

/* Step cards */
.step {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 1.1rem 1.3rem 1.3rem;
  margin-top: 1.25rem;
}

.step-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.step-head h2 {
  margin: 0;
  font-size: 1.15rem;
}

.step-num {
  flex: 0 0 auto;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  background: var(--card-border);
  color: var(--text);
}

.step.done .step-num {
  background: var(--accent);
  color: #05210f;
  font-size: 0; /* hide the number */
}

.step.done .step-num::after {
  content: "✓";
  font-size: 1.1rem;
}

.step-body {
  margin-top: 0.85rem;
}

.step-body > :first-child {
  margin-top: 0;
}

.step-body ul,
.step-body ol {
  padding-left: 1.2rem;
}

.step-body li {
  margin: 0.35rem 0;
}

code {
  font-family: var(--mono);
  background: rgba(125, 130, 140, 0.18);
  padding: 0.1em 0.35em;
  border-radius: 5px;
  font-size: 0.9em;
}

/* Actions / buttons */
.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--card-border);
  background: var(--card);
  color: var(--text);
  padding: 0.6rem 1.2rem;
  border-radius: 9px;
  transition: background 0.12s, opacity 0.12s;
}

button:hover:not(:disabled) {
  background: rgba(125, 130, 140, 0.14);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #05210f;
  font-weight: 600;
}

button.primary:hover:not(:disabled) {
  background: var(--accent-press);
}

/* Status text */
.status {
  font-size: 0.92rem;
  color: var(--muted);
}

.status.ok {
  color: var(--accent);
  font-weight: 600;
}

.status.error {
  color: var(--error-text);
  font-weight: 600;
}

.device-info {
  margin-top: 0.75rem;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Inline notice (browser/claim warnings) */
.notice {
  border-radius: 9px;
  padding: 0.75rem 1rem;
  margin-top: 1rem;
}

.notice p {
  margin: 0;
}

.notice.error {
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  color: var(--error-text);
}

/* Results table */
.results-table {
  border-collapse: collapse;
  width: 100%;
  margin-top: 1rem;
  font-size: 0.9rem;
}

.results-table th,
.results-table td {
  text-align: left;
  padding: 0.45rem 0.7rem;
  border-bottom: 1px solid var(--card-border);
  vertical-align: top;
}

.results-table th {
  color: var(--muted);
  font-weight: 600;
  border-bottom-width: 2px;
}

.results-table .ok {
  color: var(--accent);
  font-weight: 600;
}

.results-table .error {
  color: var(--error-text);
  font-weight: 600;
  word-break: break-word;
}

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

.results-table input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--accent);
  cursor: pointer;
}

.results-table input[type="checkbox"]:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

#profiles-table {
  overflow-x: auto;
}

/* Collapsible technical log */
.log-details {
  margin-top: 1.75rem;
}

.log-details summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.9rem;
}

.log {
  font-family: var(--mono);
  font-size: 0.8rem;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 9px;
  padding: 0.8rem;
  max-height: 320px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0.6rem 0 0;
}

footer {
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.85rem;
}

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

.hidden {
  display: none !important;
}