/* Beam web client styles: mobile-first, single column, light + dark themes. */

:root {
  --accent: #2563eb;
  --accent-ink: #ffffff;
  --bg: #f8fafc;
  --card: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --radius: 14px;
  --focus: #f59e0b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #60a5fa;
    --accent-ink: #0b1220;
    --bg: #0f172a;
    --card: #1e293b;
    --ink: #f1f5f9;
    --muted: #94a3b8;
    --line: #334155;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

#app {
  max-width: 480px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}

@media (prefers-reduced-motion: no-preference) {
  .card { transition: transform 0.15s ease, box-shadow 0.2s ease; }
}

.brand h1 { font-size: 1.9rem; margin: 0.2em 0 0; letter-spacing: -0.02em; }
.tagline { color: var(--muted); margin: 0 0 1em; }

#status {
  min-height: 1.5em;
  font-weight: 600;
  margin: 0 0 12px;
}

h2 { font-size: 1.25rem; margin: 0 0 0.5em; }
.muted { color: var(--muted); }
.center { text-align: center; }
.error { color: #dc2626; font-weight: 600; min-height: 1.5em; }
@media (prefers-color-scheme: dark) {
  .error { color: #f87171; }
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgb(0 0 0 / 0.06);
}

.card.ghost { background: transparent; box-shadow: none; }

button, .file-pick, #downloadBtn {
  display: block;
  width: 100%;
  min-height: 44px;
  font-size: 1.05rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  padding: 12px 16px;
  margin-top: 12px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
}

button.primary, .file-pick, #downloadBtn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
}

button.big, .file-pick.big, #downloadBtn.big {
  font-size: 1.15rem;
  padding: 14px 16px;
}

button.secondary { background: transparent; }

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

button:focus-visible, .file-pick:focus-visible, a:focus-visible,
input:focus-visible, summary:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

input[type="text"] {
  display: block;
  width: 100%;
  min-height: 44px;
  font-size: 1.4rem;
  letter-spacing: 0.35em;
  text-align: center;
  text-transform: uppercase;
  border-radius: 10px;
  border: 2px solid var(--line);
  background: var(--card);
  color: var(--ink);
  padding: 10px 8px 10px 16px;
}

.field-label {
  display: block;
  font-weight: 600;
  margin: 12px 0 6px;
}

.file-line { overflow-wrap: anywhere; }

.dropzone {
  border: 2px dashed var(--line);
  border-radius: 10px;
  padding: 22px 12px;
  margin-top: 12px;
  text-align: center;
  color: var(--muted);
}

.dropzone.over {
  border-color: var(--accent);
  color: var(--ink);
}

progress {
  width: 100%;
  height: 18px;
  margin-top: 8px;
  accent-color: var(--accent);
}

.spinner {
  width: 40px;
  height: 40px;
  margin: 16px auto;
  border-radius: 50%;
  border: 4px solid var(--line);
  border-top-color: var(--accent);
}

@media (prefers-reduced-motion: no-preference) {
  .spinner { animation: spin 0.9s linear infinite; }
}

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

#details { margin-top: 8px; }

#details summary {
  min-height: 44px;
  display: flex;
  align-items: center;
  cursor: pointer;
  color: var(--muted);
  font-weight: 600;
  border-radius: 8px;
}

#log {
  background: #0b1220;
  color: #cbd5e1;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  padding: 12px;
  height: 220px;
  overflow-y: auto;
  border-radius: 10px;
  overflow-wrap: anywhere;
}

@media (prefers-color-scheme: light) {
  #log { background: #0f172a; }
}

#log div { padding: 1px 0; border-bottom: 1px solid rgb(255 255 255 / 0.05); }

footer {
  margin-top: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

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