:root {
  --primary: #2d5f8a;
  --primary-dark: #1e4664;
  --bg: #f5f6f8;
  --card-bg: #ffffff;
  --border: #dde1e6;
  --text: #222;
  --muted: #6b7280;
  --success: #2e7d4f;
  --danger: #c0392b;
}

* { box-sizing: border-box; }

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

header.topbar {
  background: var(--primary-dark);
  color: white;
  padding: 0.9rem 1.2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

header.topbar a { color: white; text-decoration: none; }
header.topbar nav a { margin-right: 1rem; opacity: 0.9; }
header.topbar nav a:hover { opacity: 1; text-decoration: underline; }

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.2rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.2rem;
  margin-bottom: 1.2rem;
}

h1, h2, h3 { line-height: 1.3; }

form.inline { display: inline; }

label { display: block; margin: 0.6rem 0 0.2rem; font-weight: 600; font-size: 0.9rem; }
input[type=text], input[type=password], input[type=number], select {
  width: 100%;
  padding: 0.55rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
}

button, .btn {
  display: inline-block;
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.55rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.95rem;
  text-decoration: none;
  margin-top: 0.8rem;
}
button:hover, .btn:hover { background: var(--primary-dark); }
button.danger, .btn.danger { background: var(--danger); }
button.secondary, .btn.secondary { background: var(--muted); }

.error { color: var(--danger); font-weight: 600; margin: 0.5rem 0; }
.success { color: var(--success); font-weight: 600; margin: 0.5rem 0; }

table { width: 100%; border-collapse: collapse; margin-top: 0.8rem; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
th { background: #f0f2f5; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.9rem;
  margin-top: 0.8rem;
}

.photo-tile {
  display: block;
  text-decoration: none;
  color: var(--text);
  border: 2px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: white;
  transition: border-color 0.15s;
}
.photo-tile.scored { border-color: var(--success); }
.photo-tile img { width: 100%; aspect-ratio: 1/1; object-fit: cover; display: block; }
.photo-tile .tile-label {
  padding: 0.4rem 0.5rem;
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.badge {
  font-size: 0.72rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: #e5e7eb;
  color: #444;
}
.badge.scored { background: var(--success); color: white; }

.group-tabs a {
  display: inline-block;
  padding: 0.5rem 1rem;
  margin-right: 0.5rem;
  border-radius: 6px;
  background: #e9edf1;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}
.group-tabs a.active { background: var(--primary); color: white; }

.score-photo {
  width: 100%;
  max-height: 60vh;
  object-fit: contain;
  border-radius: 10px;
  background: #111;
  display: block;
  margin-bottom: 1rem;
}

.weighted-total {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 0.8rem 0;
}

.criterion-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  margin: 0.6rem 0;
}
.criterion-row label { margin: 0; flex: 1; }
.criterion-row input { width: 90px; }

.link-box {
  font-family: monospace;
  font-size: 0.8rem;
  background: #f0f2f5;
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
  word-break: break-all;
  display: block;
}

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