* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
}

:root {
    --primary-green: #1E4D3A;
    --secondary-yellow: #F4C542;
    --text-dark: #2D3748;
    --text-light: #FFFFFF;
    --background-light: #FAF9F6;
    --background-offwhite: #F7FAFC;
    --accent-green-light: #2D6B4F;
    --accent-green-dark: #173A2A;
    --border-light: #E2E8F0;
    --status-completed: #38A169;
    --status-pending: #D69E2E;
    --status-failed: #E53E3E;
    --shadow-light: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-large: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    background: var(--background-light);
    min-height: 100vh;
    line-height: 1.6;
    color: var(--text-dark);
}

/* Improved Responsive Design */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Mobile First Approach */
@media (max-width: 576px) {
    .container {
        padding: 0 10px;
    }
}

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

.auth-card {
    background: var(--text-light);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-large);
    width: 100%;
    max-width: 450px;
    backdrop-filter: blur(10px);
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header h1 {
    color: var(--primary-green);
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.auth-header p {
    color: #666;
    font-size: 1.1rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-light);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--text-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-green);
    outline: none;
    box-shadow: 0 0 0 3px rgba(30, 77, 58, 0.1);
    transform: translateY(-2px);
}

.btn {
    width: 100%;
    padding: 15px 25px;
    background: var(--primary-green);
    color: var(--text-light);
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn:hover {
    background: var(--accent-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn:active {
    transform: translateY(0);
}

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

.sidebar {
    width: 280px;
    background: var(--primary-green);
    padding: 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: var(--shadow-medium);
}

.sidebar-header {
    padding: 25px 20px;
    border-bottom: 1px solid var(--accent-green-light);
    text-align: center;
    background: var(--accent-green-dark);
}

.sidebar-header h2 {
    color: var(--text-light);
    font-size: 1.5rem;
    font-weight: 700;
}

.sidebar-nav {
    list-style: none;
    padding: 20px 0;
}

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

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 15px 25px;
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
    opacity: 0.8;
    border-left: 4px solid transparent;
    font-weight: 500;
}

.sidebar-nav a:hover {
    background: var(--accent-green-light);
    opacity: 1;
    border-left-color: var(--secondary-yellow);
    padding-left: 30px;
}

.sidebar-nav a.active {
    background: var(--secondary-yellow);
    color: var(--text-dark);
    opacity: 1;
    font-weight: 600;
    border-left-color: var(--secondary-yellow);
}

.sidebar-nav i {
    margin-right: 15px;
    font-size: 1.2rem;
    width: 20px;
    text-align: center;
}

.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 0;
    background: var(--background-offwhite);
    min-height: 100vh;
    transition: all 0.3s ease;
}

.dashboard-header {
    background: var(--primary-green);
    color: var(--text-light);
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-light);
    position: sticky;
    top: 0;
    z-index: 100;
}

.dashboard-header h1 {
    font-size: 1.8rem;
    font-weight: 700;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.lang-selector select {
    padding: 10px 15px;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    background: var(--text-light);
    color: var(--text-dark);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lang-selector select:focus {
    border-color: var(--secondary-yellow);
    outline: none;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-avatar {
    width: 45px;
    height: 45px;
    background: var(--secondary-yellow);
    color: var(--text-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
    box-shadow: var(--shadow-light);
}

/* Enhanced Content Area */
.content-area {
    padding: 30px;
}

/* Enhanced Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--text-light);
    padding: 25px;
    border-radius: 16px;
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-green), var(--secondary-yellow));
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.stat-card.wallet {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green-light) 100%);
    color: var(--text-light);
}

.stat-card h3 {
    font-size: 0.9rem;
    margin-bottom: 10px;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.stat-card .value {
    font-size: 2.2rem;
    font-weight: bold;
    margin: 15px 0;
    font-weight: 700;
}

/* Enhanced Dashboard Content */
.dashboard-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 25px;
}

.card {
    background: var(--text-light);
    padding: 25px;
    border-radius: 16px;
    box-shadow: var(--shadow-light);
    margin-bottom: 25px;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: var(--shadow-medium);
}

.card h2 {
    color: var(--primary-green);
    margin-bottom: 20px;
    font-size: 1.4rem;
    font-weight: 700;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--secondary-yellow);
}

/* Enhanced Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

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

.table th {
    background: var(--background-offwhite);
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

/* Enhanced Forms */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 25px;
    flex-wrap: wrap;
}

.btn-secondary {
    background: var(--secondary-yellow);
    color: var(--text-dark);
}

.btn-secondary:hover {
    background: #e0b43a;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-green);
    color: var(--primary-green);
}

.btn-outline:hover {
    background: var(--primary-green);
    color: var(--text-light);
    transform: translateY(-2px);
}

/* Enhanced Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    border-left: 4px solid transparent;
    font-weight: 500;
}

.alert-success {
    background: #f0fff4;
    color: var(--status-completed);
    border-left-color: var(--status-completed);
}

.alert-error {
    background: #fff5f5;
    color: var(--status-failed);
    border-left-color: var(--status-failed);
}

/* Enhanced Status Badges */
.status {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-completed {
    background: #f0fff4;
    color: var(--status-completed);
}

.status-pending {
    background: #fffaf0;
    color: var(--status-pending);
}

.status-failed {
    background: #fff5f5;
    color: var(--status-failed);
}

/* Enhanced Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
    position: fixed;
    top: 20px;
    left: 20px;
    background: var(--primary-green);
    border-radius: 8px;
    width: 45px;
    height: 45px;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-light);
}

.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 999;
}

.mobile-overlay.active {
    display: block;
}

/* Enhanced Calculator */
.calculator-result {
    background: var(--background-offwhite);
    padding: 20px;
    border-radius: 12px;
    margin-top: 15px;
    text-align: center;
    font-weight: bold;
    border: 1px solid var(--border-light);
    font-size: 1.1rem;
}

/* Enhanced Transaction Types */
.transaction-type {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.type-send {
    background: #fff5f5;
    color: var(--status-failed);
}

.type-receive {
    background: #f0fff4;
    color: var(--status-completed);
}

.type-airtime {
    background: #ebf8ff;
    color: #3182ce;
}

.type-data {
    background: #faf5ff;
    color: #805ad5;
}

.type-exchange {
    background: #fffaf0;
    color: var(--status-pending);
}

/* Enhanced Network Options */
.network-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    margin-top: 10px;
}

.network-option {
    border: 2px solid var(--border-light);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--text-light);
}

.network-option:hover {
    border-color: var(--primary-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.network-option.active {
    border-color: var(--primary-green);
    background: var(--background-offwhite);
    box-shadow: var(--shadow-light);
}

.network-option input {
    display: none;
}

.network-logo {
    width: 40px;
    height: 40px;
    margin-bottom: 10px;
    border-radius: 8px;
    object-fit: contain;
}

.network-name {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
}

/* Enhanced Country Selector */
.country-selector {
    position: relative;
}

.country-search {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-light);
    border-radius: 12px;
    margin-bottom: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.country-search:focus {
    border-color: var(--primary-green);
    outline: none;
    box-shadow: 0 0 0 3px rgba(30, 77, 58, 0.1);
}

.country-options {
    max-height: 200px;
    overflow-y: auto;
    border: 2px solid var(--border-light);
    border-radius: 12px;
    background: var(--text-light);
    position: absolute;
    width: 100%;
    z-index: 10;
    box-shadow: var(--shadow-medium);
    display: none;
}

.country-option {
    padding: 12px 15px;
    cursor: pointer;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background 0.2s ease;
}

.country-option:hover {
    background: var(--background-offwhite);
}

.country-option:last-child {
    border-bottom: none;
}

.country-flag {
    font-size: 1.2rem;
}

/* Enhanced Responsive Design */
@media (max-width: 1200px) {
    .dashboard-content {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        width: 250px;
    }
    
    .main-content {
        margin-left: 250px;
    }
}

@media (max-width: 992px) {
    .sidebar {
        width: 70px;
    }
    
    .sidebar-header h2,
    .sidebar-nav span {
        display: none;
    }
    
    .sidebar-nav a {
        justify-content: center;
        padding: 15px;
    }
    
    .sidebar-nav i {
        margin-right: 0;
        font-size: 1.3rem;
    }
    
    .main-content {
        margin-left: 70px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-overlay.active {
        display: block;
    }
    
    .dashboard-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
        padding: 20px;
    }
    
    .header-actions {
        flex-direction: column;
        gap: 15px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .content-area {
        padding: 20px;
    }
    
    .card {
        padding: 20px;
    }
    
    .table {
        font-size: 0.9rem;
    }
    
    .table th,
    .table td {
        padding: 10px 8px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

@media (max-width: 576px) {
    .auth-card {
        padding: 30px 20px;
    }
    
    .auth-header h1 {
        font-size: 2rem;
    }
    
    .content-area {
        padding: 15px;
    }
    
    .card {
        padding: 15px;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .stat-card .value {
        font-size: 1.8rem;
    }
    
    .network-options {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 10px;
    }
    
    .network-option {
        padding: 15px;
    }
}

/* Enhanced No Data States */
.no-data {
    text-align: center;
    padding: 40px 20px;
    color: #666;
}

.no-data i {
    font-size: 3rem;
    color: #ddd;
    margin-bottom: 15px;
}

/* Enhanced Exchange Rate Display */
.exchange-rate {
    background: var(--background-offwhite);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
    border: 1px solid var(--border-light);
    font-size: 1.1rem;
}

/* Enhanced Balance Info */
.balance-info {
    background: var(--background-offwhite);
    padding: 20px;
    border-radius: 12px;
    margin: 20px 0;
    text-align: center;
    font-weight: bold;
    border: 1px solid var(--border-light);
    font-size: 1.1rem;
}

/* Loading States */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--border-light);
    border-top: 2px solid var(--primary-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Enhanced Focus States */
button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

/* Enhanced Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background-offwhite);
}

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-green);
}