:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --success: #16a34a;
  --success-bg: #dcfce7;
  --warning: #b45309;
  --warning-bg: #fef3c7;
  --danger: #991b1b;
  --danger-bg: #fee2e2;
  --danger-border: #fca5a5;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
}

* { box-sizing: border-box; }

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

.nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav .brand { font-weight: 700; font-size: 1.15rem; color: var(--text); text-decoration: none; }
.nav a:not(.brand) { color: var(--text-muted); text-decoration: none; font-size: 0.9rem; }
.nav a:not(.brand):hover { color: var(--accent); }

.container { max-width: 960px; margin: 0 auto; padding: 40px 24px 60px; }
.container.narrow { max-width: 620px; }

h1 { font-size: 1.5rem; margin: 0 0 10px; }
p.hint { color: var(--text-muted); font-size: 0.9rem; line-height: 1.5; }
code { background: #f1f5f9; padding: 2px 6px; border-radius: 4px; font-size: 0.85em; }
a { color: var(--accent); }
hr { border: none; border-top: 1px solid var(--border); margin: 32px 0; }

.btn {
  background: var(--accent); color: white; border: none; padding: 11px 22px;
  border-radius: 8px; font-size: 0.95rem; cursor: pointer; font-weight: 500;
}
.btn:hover { background: var(--accent-hover); }
.btn:disabled { background: #cbd5e1; cursor: not-allowed; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 18px; margin-top: 20px; }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; box-shadow: var(--shadow);
}
.card img { width: 100%; height: 160px; object-fit: cover; border-radius: 6px; display: block; margin-bottom: 10px; background: #f1f5f9; }
.card .fname { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 8px; word-break: break-all; }
.card h2 { font-size: 1rem; margin: 0 0 6px; }

select {
  width: 100%; padding: 8px 10px; border-radius: 7px; border: 1px solid var(--border);
  font-size: 0.9rem; background: var(--surface); color: var(--text);
}
.reasoning { font-size: 0.75rem; color: #94a3b8; margin-top: 8px; line-height: 1.4; }
.reasoning.low { color: var(--warning); font-weight: 600; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; }
.badge.done { background: var(--success-bg); color: var(--success); }
.badge.pending { background: var(--warning-bg); color: var(--warning); }
.badge.set { background: var(--success-bg); color: var(--success); }
.badge.unset { background: var(--danger-bg); color: var(--danger); }

.alert { background: var(--danger-bg); border: 1px solid var(--danger-border); color: var(--danger); padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; font-size: 0.9rem; }

.dropzone {
  border: 2px dashed #cbd5e1; border-radius: var(--radius); padding: 52px 20px; text-align: center;
  color: var(--text-muted); margin: 20px 0; transition: background 0.15s, border-color 0.15s;
  font-size: 0.95rem;
}
.dropzone.drag { background: #eff6ff; border-color: var(--accent); color: var(--accent); }

ul.plain { padding-left: 20px; margin: 10px 0; }
ul.plain li { margin-bottom: 8px; }

/* AI on/off toggle */
.toggle-row { display: flex; align-items: center; gap: 12px; margin: 18px 0; }
.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; flex: none; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; cursor: pointer; inset: 0; background: #cbd5e1; transition: 0.2s; border-radius: 999px; }
.toggle-slider::before { content: ""; position: absolute; height: 18px; width: 18px; left: 3px; top: 3px; background: white; transition: 0.2s; border-radius: 50%; box-shadow: 0 1px 2px rgba(0,0,0,0.2); }
.toggle-switch input:checked + .toggle-slider { background: var(--accent); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); }
.toggle-label { font-size: 0.92rem; font-weight: 600; }
.toggle-sub { font-size: 0.8rem; color: var(--text-muted); }

/* Upload status panel */
.upload-panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; margin: 16px 0; box-shadow: var(--shadow); }
.upload-panel-header { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 10px; }
.progress-track { background: #e2e8f0; height: 8px; border-radius: 4px; overflow: hidden; }
.progress-track.small { height: 5px; margin-top: 12px; }
.progress-fill { background: var(--accent); height: 100%; width: 0%; transition: width 0.2s ease; }
.upload-current { display: flex; align-items: center; gap: 10px; margin-top: 14px; font-size: 0.88rem; color: var(--text); }
.spinner { width: 14px; height: 14px; border: 2px solid #cbd5e1; border-top-color: var(--accent); border-radius: 50%; animation: spin 0.7s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }