:root {
    --primary: #00d4ff;
    --secondary: #7b2cbf;
    --success: #00ff88;
    --danger: #ff0055;
    --warning: #ffaa00;
    --dark: #0f0f23;
    --darker: #0a0a1a;
    --card: #1a1a2e;
    --text: #ffffff;
    --text-muted: #888888;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: var(--dark);
    color: var(--text);
    line-height: 1.6;
}

/* Alert */
.alert {
    padding: 15px;
    margin: 20px;
    border-radius: 8px;
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    min-width: 300px;
    animation: slideIn 0.3s ease;
}

.alert-success { background: rgba(0, 255, 136, 0.2); border: 1px solid var(--success); color: var(--success); }
.alert-error { background: rgba(255, 0, 85, 0.2); border: 1px solid var(--danger); color: var(--danger); }
.alert-warning { background: rgba(255, 170, 0, 0.2); border: 1px solid var(--warning); color: var(--warning); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Buttons */
.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.btn-success {
    background: var(--success);
    color: var(--dark);
}

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

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.3);
}

/* Cards */
.card {
    background: var(--card);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 20px;
    border: 1px solid rgba(255,255,255,0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

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

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

.form-control {
    width: 100%;
    padding: 12px 15px;
    background: var(--darker);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    color: var(--text);
    font-size: 16px;
    transition: 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.table th {
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 1px;
}

.table tr:hover {
    background: rgba(255,255,255,0.02);
}

/* Status Badges */
.badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success { background: rgba(0, 255, 136, 0.2); color: var(--success); }
.badge-pending { background: rgba(255, 170, 0, 0.2); color: var(--warning); }
.badge-danger { background: rgba(255, 0, 85, 0.2); color: var(--danger); }

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Auth Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--darker) 100%);
    padding: 20px;
}

.auth-box {
    background: var(--card);
    padding: 40px;
    border-radius: 20px;
    width: 100%;
    max-width: 450px;
    border: 1px solid rgba(255,255,255,0.1);
}

.auth-box h2 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 28px;
}

.auth-box h2 span {
    color: var(--primary);
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    color: var(--text-muted);
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
}

/* Dashboard Layout */
.dashboard {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background: var(--darker);
    padding: 30px 20px;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-logo {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-logo h2 {
    color: var(--primary);
    font-size: 24px;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 5px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 8px;
    transition: 0.3s;
}

.sidebar-menu a i {
    width: 30px;
    font-size: 18px;
}

.sidebar-menu a:hover, .sidebar-menu a.active {
    background: rgba(0, 212, 255, 0.1);
    color: var(--primary);
}

.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 30px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: linear-gradient(135deg, rgba(0,212,255,0.1) 0%, rgba(123,44,191,0.1) 100%);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid rgba(0,212,255,0.2);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0,212,255,0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.stat-card h3 {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-card .amount {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
}

.stat-card .icon {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 40px;
    opacity: 0.1;
}

/* Investment Plans */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.plan-card {
    background: var(--card);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    border: 2px solid transparent;
    transition: 0.3s;
    position: relative;
    overflow: hidden;
}

.plan-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.plan-card.featured {
    border-color: var(--primary);
    box-shadow: 0 0 30px rgba(0,212,255,0.2);
}

.plan-card.featured::before {
    content: 'POPULAR';
    position: absolute;
    top: 15px;
    right: -30px;
    background: var(--primary);
    color: var(--dark);
    padding: 5px 40px;
    transform: rotate(45deg);
    font-size: 12px;
    font-weight: bold;
}

.plan-name {
    font-size: 24px;
    margin-bottom: 10px;
}

.plan-return {
    font-size: 48px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 20px 0;
}

.plan-return span {
    font-size: 20px;
}

.plan-features {
    list-style: none;
    margin: 25px 0;
}

.plan-features li {
    padding: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    color: var(--text-muted);
}

.plan-features li:last-child {
    border-bottom: none;
}

/* Referral Section */
.referral-box {
    background: linear-gradient(135deg, rgba(0,212,255,0.1), rgba(123,44,191,0.1));
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    margin-bottom: 30px;
}

.referral-code {
    background: var(--darker);
    padding: 15px 30px;
    border-radius: 10px;
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 2px;
    margin: 20px 0;
    display: inline-block;
    border: 2px dashed var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .dashboard {
        flex-direction: column;
    }
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* Loading */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Progress Bar */
.progress {
    background: var(--darker);
    border-radius: 10px;
    height: 10px;
    overflow: hidden;
    margin: 10px 0;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    height: 100%;
    border-radius: 10px;
    transition: width 0.3s;
}