/* Global Styles */
:root {
    --primary-color: #4f46e5;
    --secondary-color: #10b981;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --gray-color: #94a3b8;
    --danger-color: #ef4444;
    --success-color: #22c55e;
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --border-radius: 8px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f9fafb;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Typography */
h1, h2, h3, h4 {
    margin-bottom: 1rem;
    line-height: 1.2;
}

h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
}

h2 {
    font-size: 2rem;
    color: var(--dark-color);
}

h3 {
    font-size: 1.5rem;
}

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

a:hover {
    text-decoration: underline;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

/* Header & Navigation */
header {
    padding: 1.5rem 0;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

header h1 {
    margin: 0;
}

nav {
    display: flex;
    align-items: center;
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 1.5rem;
}

nav ul li a {
    font-weight: 500;
}

/* Main Content */
main {
    padding: 2rem 0;
}

/* Hero Section */
.hero {
    background-color: #ffffff;
    padding: 3rem;
    margin-bottom: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    color: var(--gray-color);
}

/* Features Section */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.feature-box {
    background-color: #ffffff;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease;
}

.feature-box:hover {
    transform: translateY(-5px);
}

.feature-box h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #4338ca;
    text-decoration: none;
}

.btn-secondary {
    background-color: var(--gray-color);
}

.btn-secondary:hover {
    background-color: #64748b;
}

/* Forms */
.payment-form {
    background-color: #ffffff;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #e2e8f0;
    border-radius: var(--border-radius);
    font-size: 1rem;
}

.form-submit {
    margin-top: 2rem;
}

/* Messages */
.error-message {
    background-color: #fef2f2;
    color: var(--danger-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--danger-color);
}

.success-message {
    background-color: #f0fdf4;
    color: var(--success-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    text-align: center;
    border: 1px solid #dcfce7;
}

.success-message h3 {
    color: var(--success-color);
    margin-bottom: 1rem;
}

.info-message {
    background-color: #eff6ff;
    color: #2563eb;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    border-left: 4px solid #2563eb;
}

.payment-btn {
    margin-top: 1rem;
    font-size: 1.2rem;
    padding: 1rem 2rem;
}

.hint {
    color: var(--gray-color);
    margin-top: 1rem;
    font-size: 0.9rem;
}

/* Checkout Page */
.checkout h2 {
    margin-bottom: 2rem;
}

.payment-info {
    background-color: #ffffff;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.payment-info h3 {
    margin-bottom: 1rem;
}

.payment-info ol {
    margin-left: 1.5rem;
}

.payment-info li {
    margin-bottom: 0.5rem;
}

/* Success Page */
.success {
    background-color: #ffffff;
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
}

.success-icon {
    background-color: var(--success-color);
    color: white;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 2rem;
}

.order-details {
    background-color: #f8fafc;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    text-align: left;
}

.action-buttons {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Account Page */
.account-header {
    margin-bottom: 2rem;
}

.balance-card {
    background-color: var(--primary-color);
    color: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-top: 1rem;
}

.balance-label {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.balance-amount {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.balance-actions {
    display: flex;
    gap: 1rem;
}

.balance-actions .btn {
    flex: 1;
}

.recent-order {
    margin-bottom: 2rem;
}

.order-card {
    background-color: #ffffff;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.transactions h3 {
    margin-bottom: 1rem;
}

.transaction-list {
    background-color: #ffffff;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

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

.transaction-list th, 
.transaction-list td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.transaction-list thead {
    background-color: #f8fafc;
}

.transaction-credit .amount {
    color: var(--success-color);
    font-weight: 600;
}

.transaction-withdraw .amount {
    color: var(--danger-color);
    font-weight: 600;
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.status-completed {
    background-color: #f0fdf4;
    color: var(--success-color);
}

.status-pending {
    background-color: #fffbeb;
    color: #d97706;
}

.status-failed {
    background-color: #fef2f2;
    color: var(--danger-color);
}

/* Footer */
footer {
    padding: 2rem 0;
    text-align: center;
    color: var(--gray-color);
    border-top: 1px solid #e2e8f0;
}

/* Responsive Styles */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        text-align: center;
    }
    
    nav {
        margin-top: 1rem;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0.5rem;
    }
    
    .hero {
        padding: 2rem;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .balance-actions {
        flex-direction: column;
    }
    
    .transaction-list {
        overflow-x: auto;
    }
}

/* Language Switcher */
.language-switcher {
    position: relative;
    margin-left: 1rem;
    cursor: pointer;
    z-index: 100;
}

.current-language {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.current-language:hover {
    background-color: #4338ca;
}

.language-options {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 0.5rem;
    margin-top: 0.5rem;
    display: none;
}

.language-switcher:hover .language-options {
    display: block;
}

.language-option {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--dark-color);
    text-decoration: none;
    white-space: nowrap;
    transition: background-color 0.3s ease;
}

.language-option:hover {
    background-color: #f5f5f5;
    text-decoration: none;
}