/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #48bb78;
    --warning-color: #fbbf24;
    --danger-color: #f56565;
    --dark-color: #1a202c;
    --light-color: #f7fafc;
    --text-color: #2d3748;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    min-height: 100vh;
    color: var(--text-color);
}

/* Mobile Container */
.mobile-container {
    max-width: 450px;
    margin: 0 auto;
    background: var(--light-color);
    min-height: 100vh;
    position: relative;
    padding-bottom: 70px;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
}

/* Header */
.app-header {
    background: white;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.app-header h1 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.app-header .balance {
    font-size: 28px;
    font-weight: bold;
    color: var(--secondary-color);
}

/* Mining Section */
.mining-section {
    background: white;
    margin: 20px;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    text-align: center;
}

.mining-rate {
    font-size: 18px;
    color: #718096;
    margin-bottom: 15px;
}

.mining-rate span {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 24px;
}

.mining-button {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s;
    width: 100%;
    max-width: 250px;
}

.mining-button.active {
    background: linear-gradient(135deg, var(--danger-color), #c53030);
}

.mining-button:hover {
    transform: scale(1.05);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    padding: 20px;
}

.stat-card {
    background: white;
    padding: 15px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.stat-card i {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-card .label {
    font-size: 14px;
    color: #718096;
    margin-bottom: 5px;
}

.stat-card .value {
    font-size: 20px;
    font-weight: bold;
    color: var(--text-color);
}

/* Plans Grid */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    padding: 20px;
}

.plan-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}

.plan-card:hover {
    transform: translateY(-5px);
}

.plan-card.popular {
    border: 2px solid var(--primary-color);
}

.plan-name {
    font-size: 18px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.plan-price {
    font-size: 24px;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: 15px;
}

.plan-rate {
    font-size: 16px;
    color: #718096;
    margin-bottom: 20px;
}

.plan-rate span {
    color: var(--success-color);
    font-weight: bold;
}

.buy-button {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 14px;
    cursor: pointer;
    width: 100%;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-width: 450px;
    margin: 0 auto;
    background: white;
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
}

.nav-item {
    text-align: center;
    color: #718096;
    text-decoration: none;
    font-size: 12px;
    transition: color 0.3s;
}

.nav-item i {
    font-size: 24px;
    display: block;
    margin-bottom: 4px;
}

.nav-item.active {
    color: var(--primary-color);
}

/* Forms */
.form-container {
    padding: 20px;
    background: white;
    border-radius: 15px;
    margin: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #4a5568;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    transition: opacity 0.3s;
}

.btn:hover {
    opacity: 0.9;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #c53030);
}

/* Referral Section */
.referral-section {
    background: white;
    margin: 20px;
    padding: 20px;
    border-radius: 15px;
}

.referral-code {
    background: #f7fafc;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    margin: 15px 0;
}

.referral-code .code {
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-color);
    letter-spacing: 2px;
}

.copy-button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 5px;
    margin-left: 10px;
    cursor: pointer;
}

/* Withdrawal Section */
.withdraw-section {
    background: white;
    margin: 20px;
    padding: 20px;
    border-radius: 15px;
}

.method-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.method-btn {
    flex: 1;
    padding: 12px;
    border: 2px solid #e2e8f0;
    background: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.method-btn.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Admin Panel Styles */
.admin-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.admin-header {
    background: white;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.admin-table {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

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

.admin-table th,
.admin-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.admin-table th {
    background: #f7fafc;
    font-weight: 600;
}

.status-badge {
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

.status-pending {
    background: #fef3c7;
    color: #92400e;
}

.status-approved {
    background: #def7ec;
    color: #03543f;
}

.status-rejected {
    background: #fde2e2;
    color: #9b1c1c;
}

/* Responsive Design */
@media (max-width: 768px) {
    .plans-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.mining-active {
    animation: pulse 2s infinite;
}