:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1c1f26;
  --muted: #6b7280;
  --border: #e3e5ea;
  --primary: #c0392b;
  --primary-dark: #9c2c20;
  --success-bg: #e6f6ec;
  --success-text: #1e7a44;
  --error-bg: #fdecea;
  --error-text: #b3261e;
  --info-bg: #eaf2fd;
  --info-text: #1a56b0;
}

* { box-sizing: border-box; }

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

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

.wrap.narrow { max-width: 420px; padding-top: 60px; }

.site-header {
  background: var(--text);
  color: #fff;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.2rem;
}
.logo span { color: var(--primary); }
.logo small { font-size: 0.7rem; color: var(--muted); font-weight: 400; }

.site-header nav a {
  color: #d7d9de;
  text-decoration: none;
  margin-left: 20px;
  font-size: 0.95rem;
}
.site-header nav a:hover { color: #fff; }
.site-header nav a.btn-nav {
  background: var(--primary);
  color: #fff;
  padding: 6px 14px;
  border-radius: 6px;
}

main.wrap { padding: 32px 20px 64px; min-height: 60vh; }

.hero { margin-bottom: 32px; }
.hero h1 { font-size: 1.9rem; margin-bottom: 8px; }
.hero p { color: var(--muted); }

.flash {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 0.95rem;
}
.flash-success { background: var(--success-bg); color: var(--success-text); }
.flash-error { background: var(--error-bg); color: var(--error-text); }
.flash-info { background: var(--info-bg); color: var(--info-text); }

.track-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.track-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  text-decoration: none;
  color: var(--text);
  display: block;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.track-card:hover { box-shadow: 0 6px 18px rgba(0,0,0,0.08); transform: translateY(-2px); }
.track-card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.track-card .meta { display: flex; gap: 10px; font-size: 0.8rem; color: var(--muted); margin-bottom: 8px; }
.track-card .excerpt { font-size: 0.9rem; color: var(--muted); margin-bottom: 10px; min-height: 40px; }
.track-card .author { font-size: 0.8rem; color: var(--muted); }

.track-detail .meta { display: flex; gap: 16px; color: var(--muted); font-size: 0.9rem; margin: 10px 0; flex-wrap: wrap; }
.track-detail .author { color: var(--muted); margin-bottom: 20px; }
.download-gate {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-top: 20px;
}

.form {
  max-width: 520px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 0.9rem; font-weight: 600; }
.form input, .form textarea {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}
.form .hint { font-size: 0.8rem; color: var(--muted); margin: -8px 0 0; font-weight: 400; }
.form .actions { display: flex; gap: 12px; }

.btn, .btn-secondary, .btn-danger {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
}
.btn { background: var(--primary); color: #fff; }
.btn:hover { background: var(--primary-dark); }
.btn-secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn-danger { background: #fff; color: var(--error-text); border: 1px solid var(--error-text); }

.table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.table th, .table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.table th { background: #fafafa; color: var(--muted); font-weight: 600; }

.badge { padding: 3px 10px; border-radius: 999px; font-size: 0.78rem; background: #eee; }
.status-pending { background: #fff4dd; color: #92620a; }
.status-approved { background: var(--success-bg); color: var(--success-text); }
.status-rejected { background: var(--error-bg); color: var(--error-text); }

.stat-grid { display: flex; gap: 16px; margin: 20px 0; flex-wrap: wrap; }
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 24px;
  display: flex;
  flex-direction: column;
  min-width: 140px;
}
.stat-card .num { font-size: 1.8rem; font-weight: 700; }
.stat-card span:last-child { color: var(--muted); font-size: 0.85rem; }

.tabs { display: flex; gap: 6px; margin-bottom: 20px; }
.tabs a { padding: 8px 14px; text-decoration: none; color: var(--muted); border-radius: 8px 8px 0 0; border: 1px solid transparent; }
.tabs a.active { color: var(--text); background: var(--card); border-color: var(--border); border-bottom-color: var(--card); }

.site-footer { border-top: 1px solid var(--border); padding: 20px 0; color: var(--muted); font-size: 0.85rem; }