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

:root {
    --bg-primary: #0a0f1e;
    --bg-secondary: #0f172a;
    --bg-card: #131b31;
    --border: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --purple: #7c3aed;
    --purple-light: #9333ea;
    --cyan: #22d3ee;
    --gold: #d4af37;
    --green: #10b981;
    --red: #ef4444;
    --yellow: #f59e0b;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    display: flex;
    min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 20px;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
}

.logo {
    width: 45px;
    height: 45px;
    border-radius: 10px;
    object-fit: contain;
    background: rgba(124, 58, 237, 0.1);
    padding: 4px;
}

.brand {
    font-size: 18px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--purple) 0%, var(--cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-sub {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 10px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    cursor: pointer;
}

.nav-item:hover {
    background: rgba(124, 58, 237, 0.1);
    color: var(--text-primary);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.2) 0%, rgba(34, 211, 238, 0.1) 100%);
    color: var(--text-primary);
    border-left: 3px solid var(--purple);
}

.nav-icon {
    font-size: 18px;
}

.sidebar-footer {
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--purple), var(--cyan));
}

.user-name {
    font-size: 14px;
    font-weight: 600;
}

.user-role {
    font-size: 11px;
    color: var(--text-secondary);
}

.login-btn {
    width: 100%;
    padding: 10px;
    border-radius: 10px;
    border: none;
    background: linear-gradient(135deg, var(--purple) 0%, var(--purple-light) 100%);
    color: white;
    font-family: inherit;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.4);
}

/* ===== MAIN ===== */
.main {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 32px;
    border-bottom: 1px solid var(--border);
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.topbar h2 {
    font-size: 22px;
    font-weight: 700;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 10px var(--green);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.content {
    padding: 32px;
    flex: 1;
}

/* ===== CARDS ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--purple);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--purple), var(--cyan));
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 32px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary), var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-sub {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 8px;
}

.section-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ===== PLACEHOLDER ===== */
.placeholder {
    background: var(--bg-card);
    border: 1px dashed var(--border);
    border-radius: 16px;
    padding: 60px 20px;
    text-align: center;
    color: var(--text-secondary);
}

.placeholder-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.placeholder h3 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.placeholder p {
    font-size: 14px;
}