:root {
  --bg-dark: #0F172A;
  --bg-card: #1E293B;
  --bg-input: #334155;
  --accent-gold: #FACC15;
  --accent-blue: #3B82F6;
  --accent-green: #22C55E;
  --accent-red: #EF4444;
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --border: #334155;
  --font-family: 'Work Sans', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-family);
  background-color: var(--bg-dark);
  color: var(--text-main);
  display: flex;
  min-height: 100vh;
}

/* LOGIN SCREEN */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at center, #1E293B 0%, #0F172A 100%);
}
.login-box {
  background: var(--bg-card);
  padding: 40px;
  border-radius: 12px;
  border: 1px solid var(--border);
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.5);
  text-align: center;
}
.login-box h1 {
  font-size: 24px;
  color: var(--accent-gold);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.login-box p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 24px;
}
.form-group {
  margin-bottom: 20px;
  text-align: left;
}
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
}
.form-control {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-main);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}
.form-control:focus {
  border-color: var(--accent-gold);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px;
  background: var(--accent-gold);
  color: #000;
  font-weight: 700;
  font-size: 14px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.1s, background 0.2s;
}
.btn:hover { background: #EAB308; }
.btn-danger { background: var(--accent-red); color: #fff; }
.btn-danger:hover { background: #DC2626; }
.btn-secondary { background: #475569; color: #fff; }
.btn-secondary:hover { background: #334155; }
.btn-sm { padding: 6px 12px; font-size: 12px; width: auto; }

/* ADMIN LAYOUT */
.sidebar {
  width: 260px;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}
.sidebar-header {
  padding: 24px;
  border-bottom: 1px solid var(--border);
}
.sidebar-header h2 {
  font-size: 18px;
  color: var(--accent-gold);
}
.sidebar-header span {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
}
.sidebar-nav {
  list-style: none;
  padding: 16px 0;
  flex: 1;
}
.sidebar-nav li a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s;
}
.sidebar-nav li a:hover, .sidebar-nav li a.active {
  color: var(--text-main);
  background: var(--bg-input);
  border-left: 4px solid var(--accent-gold);
}
.sidebar-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

.main-content {
  flex: 1;
  padding: 32px;
  overflow-y: auto;
}
.header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}
.header-bar h1 {
  font-size: 28px;
  font-weight: 800;
}

/* TABLES */
.table-card {
  background: var(--bg-card);
  border-radius: 8px;
  border: 1px solid var(--border);
  overflow: hidden;
  margin-top: 20px;
}
.admin-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.admin-table th, .admin-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.admin-table th {
  background: var(--bg-dark);
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 1px;
}
.admin-table tr:hover {
  background: rgba(255,255,255,0.02);
}

/* MODAL */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 100;
  align-items: center;
  justify-content: center;
}
.modal.open { display: flex; }
.modal-content {
  background: var(--bg-card);
  border-radius: 10px;
  border: 1px solid var(--border);
  width: 100%;
  max-width: 600px;
  padding: 24px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 { font-size: 20px; color: var(--accent-gold); }
.close-btn { cursor: pointer; font-size: 20px; color: var(--text-muted); }

/* GRID CARDS FOR STATS */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: 8px;
}
.stat-card .num {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent-gold);
  margin-top: 6px;
}