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

:root {
    --primary-dark: #1a1a1a;
    --secondary-dark: #2a2a2a;
    --accent-green: #1a4d2e;
    --accent-green-hover: #235a38;
    --text-primary: #f8f9fa;
    --text-secondary: #adb5bd;
    --border-color: #3a3a3a;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--primary-dark);
    color: var(--text-primary);
    line-height: 1.5;
}

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-box {
    background: var(--secondary-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo-container {
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
}

.login-header h1 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 4px;
}

.tagline {
    color: var(--text-secondary);
    font-size: 14px;
}

.login-form {
    margin-bottom: 24px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px;
    background: var(--primary-dark);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 15px;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-green);
}

.btn-primary {
    width: 100%;
    padding: 14px;
    background: var(--accent-green);
    color: var(--text-primary);
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: var(--accent-green-hover);
}

.btn-secondary {
    padding: 10px 20px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

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

.login-footer {
    text-align: center;
    margin-top: 16px;
}

.link-secondary {
    color: var(--text-secondary);
    font-size: 14px;
    text-decoration: none;
}

.link-secondary:hover {
    color: var(--text-primary);
}

.security-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 12px;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--secondary-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 90%;
    max-width: 400px;
}

.modal-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 20px;
    font-weight: 600;
}

.modal-body {
    padding: 24px;
}

.modal-body p {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.modal-body input {
    width: 100%;
    padding: 12px;
    background: var(--primary-dark);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 24px;
    text-align: center;
    letter-spacing: 8px;
}

.modal-body input:focus {
    outline: none;
    border-color: var(--accent-green);
}

.modal-footer {
    padding: 16px 24px 24px;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.top-header {
    height: 64px;
    background: var(--secondary-dark);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-left h1 {
    font-size: 18px;
    font-weight: 600;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.session-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: rgba(40, 167, 69, 0.1);
    border-radius: 4px;
    font-size: 14px;
    color: var(--success);
}

.main-container {
    display: flex;
    height: calc(100vh - 64px);
}

.sidebar {
    width: 240px;
    background: var(--secondary-dark);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
}

.nav-menu {
    list-style: none;
    padding: 16px 0;
}

.nav-link {
    display: block;
    padding: 12px 24px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.nav-link.active {
    background: rgba(26, 77, 46, 0.2);
    color: var(--text-primary);
    border-left: 3px solid var(--accent-green);
}

.content-area {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
}

.content-section {
    display: none;
}

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

.content-section h2 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 24px;
}

.account-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.account-card {
    background: var(--secondary-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    cursor: pointer;
    transition: all 0.2s;
}

.account-card:hover {
    border-color: var(--accent-green);
    transform: translateY(-2px);
}

.account-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.account-type {
    font-size: 16px;
    font-weight: 600;
}

.account-number {
    color: var(--text-secondary);
    font-size: 14px;
}

.account-balance {
    display: flex;
    flex-direction: column;
}

.balance-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.balance-amount {
    font-size: 32px;
    font-weight: 700;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.dashboard-panel {
    background: var(--secondary-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
}

.dashboard-panel h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.control-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.status-active {
    background: rgba(40, 167, 69, 0.2);
    color: var(--success);
}

.status-frozen {
    background: rgba(220, 53, 69, 0.2);
    color: var(--danger);
}

.security-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.info-row {
    display: flex;
    justify-content: space-between;
}

.info-label {
    color: var(--text-secondary);
    font-size: 14px;
}

.info-value {
    font-weight: 500;
    font-size: 14px;
}

.quick-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn-action {
    padding: 10px;
    background: var(--primary-dark);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-action:hover {
    background: var(--border-color);
}

.activity-panel {
    background: var(--secondary-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
}

.activity-panel h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.activity-log {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.activity-item {
    display: flex;
    justify-content: space-between;
    padding: 12px;
    background: var(--primary-dark);
    border-radius: 4px;
}

.activity-desc {
    font-size: 14px;
}

.activity-time {
    font-size: 12px;
    color: var(--text-secondary);
}

.accounts-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.account-detail-card {
    background: var(--secondary-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
}

.account-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.account-detail-header h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 4px;
}

.account-number-full {
    color: var(--text-secondary);
    font-size: 14px;
}

.balance-large {
    font-size: 36px;
    font-weight: 700;
}

.account-detail-footer {
    display: flex;
    justify-content: space-between;
    color: var(--text-secondary);
    font-size: 14px;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
}

.card-item {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.card-visual {
    background: linear-gradient(135deg, var(--accent-green) 0%, #0d3320 100%);
    border-radius: 12px;
    padding: 24px;
    height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-chip {
    width: 48px;
    height: 36px;
    background: linear-gradient(135deg, #ffd700 0%, #daa520 100%);
    border-radius: 6px;
}

.card-number {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: 2px;
}

.card-info {
    display: flex;
    justify-content: space-between;
}

.card-holder {
    font-size: 14px;
    font-weight: 500;
}

.card-expiry {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
}

.card-controls {
    background: var(--secondary-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
}

.empty-state p {
    margin-top: 16px;
    color: var(--text-secondary);
    font-size: 16px;
}

.statements-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.statement-item {
    background: var(--secondary-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-link {
    background: none;
    border: none;
    color: var(--accent-green);
    cursor: pointer;
    font-size: 14px;
    text-decoration: underline;
}

.btn-link:hover {
    color: var(--accent-green-hover);
}

.fraud-alert {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--danger);
    padding: 16px 24px;
    z-index: 999;
    animation: slideDown 0.3s
ease-out;
}

.fraud-alert.hidden {
    display: none;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

.alert-content {
    display: flex;
    align-items: center;
    gap: 12px;
    max-width: 1200px;
    margin: 0 auto;
}

.alert-content span {
    flex: 1;
    font-size: 14px;
    font-weight: 500;
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-close:hover {
    opacity: 0.8;
}

@media (max-width: 768px) {
    .sidebar {
        width: 200px;
    }
    
    .content-area {
        padding: 20px;
    }
    
    .account-cards,
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
.logo-container img,
.header-left img {
    object-fit: contain;
}
}