/* claude-snap PWA — minimal, dark-by-default. No external fonts; system stack. */

:root {
  color-scheme: dark light;
  --bg: #0d1117;
  --surface: #161b22;
  --surface-2: #1f262d;
  --border: #2d343c;
  --text: #e6edf3;
  --muted: #9ba8b4;
  --accent: #d97757;
  --accent-text: #1a1a1a;
  --user: #2d3a4a;
  --assistant: #2a2218;
  --error: #f85149;
  --ok: #3fb950;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.brand strong {
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.brand .tag {
  color: var(--muted);
  font-size: 0.85rem;
}

main {
  flex: 1;
  width: 100%;
  max-width: 920px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.banner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 0.9rem;
  color: var(--muted);
}

.banner code {
  background: var(--surface-2);
  padding: 1px 5px;
  border-radius: 3px;
}

.banner a {
  color: var(--accent);
  text-decoration: none;
}

.banner a:hover {
  text-decoration: underline;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card h2 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.dropzone {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 32px 16px;
  text-align: center;
  cursor: pointer;
  color: var(--muted);
  background: var(--surface-2);
  outline: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.dropzone:focus-visible,
.dropzone:hover {
  border-color: var(--accent);
  color: var(--text);
}

.dropzone.dragover {
  border-color: var(--accent);
  background: rgba(217, 119, 87, 0.08);
}

.dropzone p {
  margin: 0;
}

details {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
}

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

details textarea {
  margin-top: 10px;
  width: 100%;
  min-height: 100px;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, Menlo, monospace;
  font-size: 0.85rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px;
  resize: vertical;
}

textarea {
  width: 100%;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, Menlo, monospace;
  font-size: 0.9rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  resize: vertical;
}

button {
  background: var(--accent);
  color: var(--accent-text);
  border: 0;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

button:hover { filter: brightness(1.05); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

button.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

button.ghost:hover {
  color: var(--text);
}

.status {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  min-height: 1.2em;
}

.status[data-kind="error"] { color: var(--error); }
.status[data-kind="ok"]    { color: var(--ok); }

.row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.key-row {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 10px;
  align-items: center;
}

.key-row label {
  font-size: 0.85rem;
  color: var(--muted);
}

.key-row input[type="password"] {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Consolas, Menlo, monospace;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 0.9rem;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 6px;
}

select {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: inherit;
  font-size: 0.9rem;
}

.transcript,
.chat-log {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 60vh;
  overflow-y: auto;
  padding: 4px;
}

.bubble {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
}

.bubble.role-user      { background: var(--user); }
.bubble.role-assistant { background: var(--assistant); }

.bubble .role {
  font-size: 0.75rem;
  text-transform: lowercase;
  color: var(--muted);
  margin-bottom: 4px;
}

.bubble .body {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.5;
}

.meta {
  font-size: 0.85rem;
  color: var(--muted);
}

.meta p {
  margin: 0;
}

footer {
  text-align: center;
  padding: 16px;
  font-size: 0.8rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  background: var(--surface);
}

footer a {
  color: var(--muted);
  text-decoration: none;
}

footer a:hover {
  color: var(--text);
  text-decoration: underline;
}

.hidden { display: none !important; }

.optional {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 400;
  margin-left: 6px;
}

.hint strong { color: var(--text); }

@media (max-width: 600px) {
  .key-row {
    grid-template-columns: 1fr;
  }
  .card {
    padding: 12px;
  }
}