:root {
  --navy: #03045E;
  --navy-mid: #023E8A;
  --navy-light: #0077B6;
  --cyan: #00B4D8;
  --cyan-light: #90E0EF;
  --cyan-pale: #CAF0F8;
  --bg: #020318;
  --glass: rgba(3, 4, 94, 0.32);
  --glass-border: rgba(0, 180, 216, 0.15);
  --text: #f0f8ff;
  --text-muted: rgba(240, 248, 255, 0.6);
  --danger: #ff5d73;
  --success: #35d68a;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg) radial-gradient(circle at 20% 0%, rgba(0,180,216,0.10), transparent 45%);
  color: var(--text);
  min-height: 100vh;
}

a { color: var(--cyan-light); }

.admin-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 230px;
  flex-shrink: 0;
  background: rgba(3, 4, 94, 0.35);
  border-right: 1px solid var(--glass-border);
  padding: 24px 18px;
}

.sidebar h1 { font-size: 1.1rem; margin: 0 0 24px; color: var(--cyan-light); }

.sidebar nav a {
  display: block;
  padding: 10px 12px;
  margin-bottom: 4px;
  border-radius: 8px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
}

.sidebar nav a:hover, .sidebar nav a.active {
  background: rgba(0, 180, 216, 0.12);
  color: var(--text);
}

.sidebar .user-box {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--glass-border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.main { flex: 1; padding: 32px 40px; max-width: 1100px; }

.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.page-header h2 { margin: 0; font-size: 1.5rem; }

.card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}

.btn {
  display: inline-block;
  background: linear-gradient(120deg, var(--navy-light), var(--cyan));
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  font-size: 0.9rem;
}
.btn.secondary { background: rgba(255,255,255,0.08); }
.btn.danger { background: var(--danger); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--glass-border); font-size: 0.9rem; }
th { color: var(--text-muted); font-weight: 600; text-transform: uppercase; font-size: 0.72rem; letter-spacing: 0.05em; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.72rem; font-weight: 600; }
.badge.published { background: rgba(53,214,138,0.15); color: var(--success); }
.badge.draft { background: rgba(255,255,255,0.1); color: var(--text-muted); }
.badge.unread { background: rgba(0,180,216,0.18); color: var(--cyan-light); }

label { display: block; font-size: 0.85rem; margin: 14px 0 6px; color: var(--text-muted); }
input[type=text], input[type=email], input[type=password], input[type=url], input[type=file],
textarea, select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  font-size: 0.92rem;
  font-family: inherit;
}
textarea { min-height: 220px; resize: vertical; }

.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 18px; font-size: 0.9rem; }
.alert.error { background: rgba(255,93,115,0.12); border: 1px solid rgba(255,93,115,0.4); color: #ffb3c0; }
.alert.success { background: rgba(53,214,138,0.12); border: 1px solid rgba(53,214,138,0.4); color: var(--success); }

.login-shell {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
}
.login-card { width: 100%; max-width: 380px; }
.login-card h1 { text-align: center; margin-bottom: 4px; }
.login-card p.sub { text-align: center; color: var(--text-muted); margin-top: 0; margin-bottom: 20px; font-size: 0.88rem; }

.actions-row { display: flex; gap: 8px; }
.muted { color: var(--text-muted); font-size: 0.85rem; }