/* 廣宣君 — Base Styles */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --bg: #0f172a;
    --bg-card: #1e293b;
    --bg-input: #334155;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --border: #475569;
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --radius: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

.auth-container {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 12px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.3);
}

.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo h1 {
    font-size: 2rem;
    color: var(--primary);
}

.auth-logo p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Navbar */
.navbar {
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    height: 56px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand a {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    margin-left: 2rem;
    gap: 0.25rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    transition: all 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text);
    background: var(--bg-input);
}

.nav-user {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* Dashboard */
.dashboard h2 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.stat-card {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.6rem 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius);
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    color: var(--text);
    background: var(--bg-input);
}

.btn:hover { opacity: 0.85; }

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

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-full { width: 100%; justify-content: center; }

.btn-sm {
    padding: 0.25rem 0.6rem;
    font-size: 0.8rem;
}

/* Alert */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-error {
    background: rgba(239,68,68,0.15);
    color: var(--error);
    border: 1px solid rgba(239,68,68,0.3);
}

.alert-success {
    background: rgba(34,197,94,0.15);
    color: var(--success);
    border: 1px solid rgba(34,197,94,0.3);
}

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

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 0.6rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
}

/* Status badges */
.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success { background: rgba(34,197,94,0.2); color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.2); color: var(--warning); }
.badge-error { background: rgba(239,68,68,0.2); color: var(--error); }
.badge-info { background: rgba(99,102,241,0.2); color: var(--primary); }

/* Footer */
.footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--border);
    margin-top: 2rem;
}

/* Placeholder pages */
.page-placeholder {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--text-muted);
}

.page-placeholder h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text);
}