/* Default Light Theme Variables (Pink & White) */
:root {
    --bg-black: #FFF0F2;
    --card-bg: #ffffff;
    --gold: #FF4081; /* Pinkish accent for light mode */
    --gold-hover: #F50057;
    --text-white: #1B5E20; /* Dark green for text in pink theme */
    --text-muted: #1565C0; /* Blue for muted text in pink theme */
    --danger: #e74c3c;
    --success: #2E7D32;
    --border: #E2E2E2;
    --input-bg: #ffffff;
    --header-bg: #ffffff;
}

/* Dark Theme Variables (Gold & Black) */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-black: #0a0a0a;
        --card-bg: #141414;
        --gold: #d4af37;
        --gold-hover: #f1c40f;
        --text-white: #e0e0e0;
        --text-muted: #a0a0a0;
        --danger: #e74c3c;
        --success: #2ecc71;
        --border: #222222;
        --input-bg: #1a1a1a;
        --header-bg: #141414;
    }
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-black);
    color: var(--text-white);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

/* Typography */
.gold-text {
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: bold;
}

h1, h2, h3 {
    margin-bottom: 20px;
}

/* Header */
.main-header {
    background-color: var(--header-bg);
    border-bottom: 2px solid var(--gold);
    padding: 15px 0;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav ul {
    list-style: none;
    display: flex;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: var(--gold);
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: background-color 0.3s, border-color 0.3s;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 14px;
}

input, select, textarea {
    width: 100%;
    padding: 12px;
    background-color: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-white);
    font-size: 16px;
    transition: all 0.3s;
}

input:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 2px rgba(255, 64, 129, 0.1);
}

.row {
    display: flex;
    gap: 20px;
}

.col {
    flex: 1;
}

/* Buttons */
.btn {
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 700;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    text-align: center;
}

.btn-gold {
    background-color: var(--gold);
    color: #ffffff;
}

.btn-gold:hover {
    background-color: var(--gold-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

@media (prefers-color-scheme: dark) {
    .btn-gold { color: #000000; }
}

.btn-danger {
    background-color: var(--danger);
    color: white;
}

.btn-sm {
    padding: 8px 15px;
    font-size: 13px;
}

.form-actions {
    margin-top: 20px;
    text-align: right;
}

/* Alerts */
.alert {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-weight: 600;
}

.alert-success {
    background-color: rgba(46, 125, 50, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-danger {
    background-color: rgba(231, 76, 60, 0.1);
    border: 1px solid var(--danger);
    color: var(--danger);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    color: var(--gold);
    text-transform: uppercase;
    font-size: 14px;
    font-weight: 700;
}

/* Badges */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

.badge-success { background-color: var(--success); color: white; }
.badge-danger { background-color: var(--danger); color: white; }

/* Login Page */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-box {
    width: 100%;
    max-width: 400px;
    text-align: center;
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    border: 2px solid var(--gold);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .container { padding: 15px; }
    .row { flex-direction: column; gap: 10px; }
    .header-content { flex-direction: column; gap: 15px; }
    nav ul { width: 100%; justify-content: center; }
    nav ul li { margin: 0 10px; }
    .card { padding: 20px; }
    .btn { width: 100%; margin-bottom: 10px; }
    .form-actions { text-align: center; }
    table th:nth-child(3), table td:nth-child(3) { display: none; } /* Hide email on small mobile */
}