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

:root {
    /* Dark Theme Colors */
    --bg-primary: #0a0e1a;
    --bg-secondary: #151b2b;
    --bg-tertiary: #1e2639;
    --bg-hover: #252d42;
    
    /* Accent Colors */
    --accent-blue: #3b82f6;
    --accent-green: #10b981;
    --accent-purple: #8b5cf6;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
    
    /* Text Colors */
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-tertiary: #6b7280;
    
    /* Border & Shadow */
    --border-color: #2d3748;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
}

/* ===== LOGIN PAGE ===== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    position: relative;
}

.login-container {
    position: relative;
    z-index: 10;
}

.login-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 3rem;
    width: 420px;
    max-width: 95vw;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 2;
}

.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo-container {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 8px 16px rgba(59, 130, 246, 0.3);
}

.logo-container i {
    font-size: 2.5rem;
    color: white;
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    width: 100%;
}

.input-icon {
    position: relative;
}

.input-icon i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.25rem;
    color: var(--text-tertiary);
}

.input-icon input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: all 0.3s ease;
}

.input-icon input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.input-icon input::placeholder {
    color: var(--text-tertiary);
}

.error-message {
    padding: 0.875rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--accent-red);
    border-radius: 10px;
    color: var(--accent-red);
    font-size: 0.9rem;
    text-align: center;
}

.btn-login {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.login-footer {
    margin-top: 2rem;
    text-align: center;
}

.login-footer p {
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

/* Animated Background */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.bg-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 500px;
    height: 500px;
    background: var(--accent-blue);
    top: -250px;
    left: -250px;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-purple);
    bottom: -200px;
    right: -200px;
    animation-delay: -10s;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-green);
    top: 50%;
    left: 50%;
    animation-delay: -5s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(50px, 50px);
    }
}

/* ===== DASHBOARD LAYOUT ===== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.sidebar-header {
    padding: 2rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo i {
    font-size: 2rem;
    color: var(--accent-blue);
}

.sidebar-nav {
    flex: 1;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-item i {
    font-size: 1.5rem;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(139, 92, 246, 0.2));
    color: var(--accent-blue);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    margin-bottom: 1rem;
    background: var(--bg-tertiary);
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.user-info i {
    font-size: 1.5rem;
}

.btn-logout {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--accent-red);
    border-radius: 10px;
    color: var(--accent-red);
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-logout:hover {
    background: rgba(239, 68, 68, 0.2);
}

/* Main Content */
.main-content {
    margin-left: 280px;
    min-height: 100vh;
    background: var(--bg-primary);
}

.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.server-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-tertiary);
    animation: pulse 2s infinite;
}

.status-dot.online {
    background: var(--accent-green);
}

.status-dot.offline {
    background: var(--accent-red);
}

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

.btn-refresh {
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.25rem;
}

.btn-refresh:hover {
    background: var(--bg-hover);
    transform: rotate(90deg);
}

/* Content Sections */
.content-section {
    display: none;
    padding: 2rem;
}

.content-section.active {
    display: block;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
}

.stat-icon.blue { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.stat-icon.green { background: linear-gradient(135deg, #10b981, #059669); }
.stat-icon.purple { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.stat-icon.orange { background: linear-gradient(135deg, #f59e0b, #d97706); }

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

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

/* Charts */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
}

.chart-header {
    margin-bottom: 1.5rem;
}

.chart-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.chart-container {
    position: relative;
    height: 300px;
}

/* Card */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    margin-bottom: 2rem;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Data Table */
.data-table {
    width: 100%;
    overflow-x: auto;
}

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

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table tr:hover {
    background: var(--bg-hover);
}

.badge {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 500;
}

.badge.connect { background: rgba(16, 185, 129, 0.2); color: var(--accent-green); }
.badge.disconnect { background: rgba(239, 68, 68, 0.2); color: var(--accent-red); }
.badge.connection_lost { background: rgba(245, 158, 11, 0.2); color: var(--accent-orange); }
.badge.kicked { background: rgba(139, 92, 246, 0.2); color: var(--accent-purple); }
.badge.banned { background: rgba(239, 68, 68, 0.3); color: var(--accent-red); }

/* Top Users */
.top-users-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.top-user-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.top-user-item:hover {
    background: var(--bg-hover);
    transform: translateX(4px);
}

.user-rank {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.user-rank.gold { background: linear-gradient(135deg, #fbbf24, #f59e0b); color: white; }
.user-rank.silver { background: linear-gradient(135deg, #d1d5db, #9ca3af); color: white; }
.user-rank.bronze { background: linear-gradient(135deg, #f97316, #ea580c); color: white; }
.user-rank.default { background: var(--bg-secondary); color: var(--text-secondary); border: 1px solid var(--border-color); }

.user-info-top {
    flex: 1;
    margin-left: 1rem;
}

.user-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.user-connections {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Filter Controls */
.filter-controls {
    display: flex;
    gap: 0.5rem;
}

.form-select {
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
}

/* Search Box */
.search-box {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.search-box i {
    font-size: 1.25rem;
    color: var(--text-tertiary);
}

.search-box input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
}

.search-box input:focus {
    outline: none;
}

.btn-search {
    padding: 0.625rem 1.5rem;
    background: var(--accent-blue);
    border: none;
    border-radius: 8px;
    color: white;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-search:hover {
    background: #2563eb;
    transform: translateY(-2px);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 240px;
    }
    
    .main-content {
        margin-left: 240px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .main-content {
        margin-left: 0;
    }
}