/* Bitcoin-inspired theme */
:root {
    --bitcoin-orange: #f7931a;
    --dark-bg: #1a1a1a;
    --card-bg: #2d2d2d;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --border-color: #404040;
    --card-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    --hover-shadow: 0 4px 8px rgba(247, 147, 26, 0.2);
}

body {
    background: #0f0f0f;
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    color: #e0e0e0;
}

.container {
    max-width: 1200px;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

header h1 {
    color: var(--bitcoin-orange);
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

header .lead {
    color: #a0a0a0;
}

/* Balance Card */
.balance-card {
    background: linear-gradient(135deg, var(--dark-bg) 0%, #000000 100%);
    color: white;
    border: 2px solid var(--bitcoin-orange);
    box-shadow: 0 0 20px rgba(247, 147, 26, 0.15);
    border-radius: 0.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.balance-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(247, 147, 26, 0.3);
    border-color: #ffb84d;
}

.balance-card .card-title {
    color: var(--bitcoin-orange);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.balance-card .text-muted {
    color: #999 !important;
    font-size: 0.875rem;
}

.balance-amount {
    font-size: 3rem;
    font-weight: 700;
    margin: 1rem 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

/* Balance update animation */
.balance-amount.balance-update {
    animation: balancePop 0.6s ease;
}

@keyframes balancePop {
    0% {
        transform: scale(1);
        color: white;
    }
    25% {
        transform: scale(1.15);
        color: var(--bitcoin-orange);
        text-shadow: 0 0 30px rgba(247, 147, 26, 0.8),
                     0 0 15px rgba(247, 147, 26, 0.6);
    }
    50% {
        transform: scale(1.1);
        color: #ffb84d;
        text-shadow: 0 0 35px rgba(247, 147, 26, 1),
                     0 0 20px rgba(247, 147, 26, 0.8);
    }
    75% {
        transform: scale(1.05);
        color: var(--bitcoin-orange);
    }
    100% {
        transform: scale(1);
        color: white;
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    border-radius: 0.375rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--hover-shadow);
    border-color: var(--bitcoin-orange);
}

.card-header {
    background-color: var(--dark-bg);
    border-bottom: 1px solid var(--border-color);
    border-radius: 0.375rem 0.375rem 0 0 !important;
    padding: 1.25rem;
}

.card-header h5 {
    color: var(--bitcoin-orange);
    font-weight: 600;
    margin: 0;
}

.card-body {
    color: #e0e0e0;
}

/* Buttons */
.btn-primary {
    background-color: var(--bitcoin-orange);
    border: 2px solid var(--bitcoin-orange);
    color: #000;
    font-weight: 700;
    padding: 0.75rem 1.5rem;
    border-radius: 0.25rem;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background-color: #ffb84d;
    border-color: #ffb84d;
    color: #000;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(247, 147, 26, 0.4);
}

.btn-success {
    background-color: var(--success-color);
    border: 2px solid var(--success-color);
    color: white;
    font-weight: 700;
    padding: 0.75rem 1.5rem;
    border-radius: 0.25rem;
    transition: all 0.2s ease;
}

.btn-success:hover {
    background-color: #0ea472;
    border-color: #0ea472;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

/* Form Controls */
.form-control, .form-select {
    background-color: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    color: #e0e0e0;
    padding: 0.75rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus, .form-select:focus {
    background-color: #1a1a1a;
    border-color: var(--bitcoin-orange);
    color: #e0e0e0;
    box-shadow: 0 0 0 0.15rem rgba(247, 147, 26, 0.25);
}

.form-control::placeholder {
    color: #666;
}

.form-label {
    font-weight: 600;
    color: #b0b0b0;
    margin-bottom: 0.5rem;
}

.form-text {
    color: #808080;
}

/* Invoice Display */
.font-monospace {
    font-family: 'Courier New', Courier, monospace;
    word-break: break-all;
}

/* Alerts */
.alert {
    border-radius: 0.25rem;
    border: 1px solid;
    font-weight: 500;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border-color: var(--success-color);
    color: #6ee7b7;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: var(--danger-color);
    color: #fca5a5;
}

.alert-info {
    background-color: rgba(247, 147, 26, 0.1);
    border-color: var(--bitcoin-orange);
    color: #fbbf24;
}

/* Modal Styling */
.modal-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    color: #e0e0e0;
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    border-radius: 0.375rem 0.375rem 0 0;
}

.modal-header.bg-success {
    background-color: rgba(16, 185, 129, 0.2) !important;
    border-bottom-color: var(--success-color);
}

.modal-header.bg-danger {
    background-color: rgba(239, 68, 68, 0.2) !important;
    border-bottom-color: var(--danger-color);
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    border-radius: 0 0 0.375rem 0.375rem;
}

.modal-body {
    color: #e0e0e0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .balance-amount {
        font-size: 2.5rem;
    }

    .container {
        padding-top: 1rem;
    }

    header h1 {
        font-size: 2rem;
    }
}

/* Loading State */
button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Copy Button Styling */
.input-group .btn-outline-secondary {
    background-color: var(--dark-bg);
    border-color: var(--border-color);
    color: #b0b0b0;
    font-weight: 600;
}

.input-group .btn-outline-secondary:hover {
    background-color: var(--bitcoin-orange);
    border-color: var(--bitcoin-orange);
    color: #000;
}

.input-group .form-control {
    border-right: none;
}

.input-group .btn-outline-secondary {
    border-left: none;
}

/* Toast Notification Styling */
.toast {
    background-color: var(--card-bg);
    border: 1px solid var(--success-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    border-radius: 0.25rem;
    font-weight: 500;
}

.toast.text-bg-success {
    background-color: rgba(16, 185, 129, 0.15) !important;
    color: #6ee7b7 !important;
}

.toast-body {
    padding: 1rem 1.25rem;
    color: #e0e0e0;
}

/* Admin Dashboard Styling */
body.admin-page {
    background: #f8f9fa;
    color: #333;
}

body.admin-page .card {
    background-color: #fff;
    border: 1px solid #dee2e6;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

body.admin-page .card:hover {
    transform: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    border-color: #dee2e6;
}

body.admin-page .card-body {
    color: #333;
}

body.admin-page .table {
    color: #333;
}

body.admin-page .table thead {
    background-color: #f8f9fa;
}

body.admin-page .text-muted {
    color: #6c757d !important;
}

body.admin-page code {
    background-color: #f8f9fa;
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    color: #d63384;
}

body.admin-page h1, body.admin-page h2, body.admin-page h3, body.admin-page h5 {
    color: #212529;
}

body.admin-page .table-hover tbody tr:hover {
    background-color: #f8f9fa;
}

body.admin-page pre {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    padding: 1rem;
    border-radius: 0.25rem;
    color: #333;
    font-size: 0.875rem;
    max-height: 600px;
    overflow: auto;
}

body.admin-page .progress {
    height: 24px;
    background-color: #e9ecef;
}

body.admin-page .progress-bar {
    background-color: #0d6efd;
    line-height: 24px;
    font-size: 0.875rem;
}

/* Transaction List Styling */
.card-header h6 {
    color: var(--bitcoin-orange);
    font-weight: 600;
    margin: 0;
}

.list-group-item {
    background-color: rgba(255, 255, 255, 0.03);
    border-color: var(--border-color);
    color: #e0e0e0;
    transition: background-color 0.2s ease;
}

.list-group-item:hover {
    background-color: rgba(247, 147, 26, 0.05);
}

.list-group-item .small {
    color: #a0a0a0;
    font-size: 0.85rem;
}

.list-group-item .text-muted {
    color: #999 !important;
}

/* Invoice List Empty State */
#invoiceList .text-muted {
    color: #a0a0a0 !important;
}

.list-group-flush .list-group-item:first-child {
    border-top: none;
}

.list-group-flush .list-group-item:last-child {
    border-bottom: none;
}

/* Compact Form Styling */
.form-label-sm {
    font-size: 0.8rem;
    font-weight: 600;
    color: #999;
    margin-bottom: 0.25rem;
}

.form-control-sm {
    font-size: 0.875rem;
    padding: 0.5rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 700;
}

/* Alert Small Variant */
.alert-sm {
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
}

/* Badge Styling */
.badge {
    font-weight: 600;
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
}

.bg-warning {
    background-color: #f59e0b !important;
    color: #000 !important;
}

/* Scrollbar Styling */
#invoiceList::-webkit-scrollbar {
    width: 8px;
}

#invoiceList::-webkit-scrollbar-track {
    background: var(--dark-bg);
    border-radius: 4px;
}

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

#invoiceList::-webkit-scrollbar-thumb:hover {
    background: #555;
}