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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
    padding: 0;
    line-height: 1.5;
    margin: 0;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-y: scroll;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    margin: 0 auto;
    padding: 10px 4px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    margin-bottom: 10px;
}

.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

header h1 {
    font-size: 20px;
    margin: 0;
    color: var(--tg-theme-text-color, #000000);
    font-weight: 600;
    flex: 1;
}

.chat-selector-container {
    flex-shrink: 0;
    flex: 0;
}

.chat-select {
    padding: 6px 10px;
    border: 1px solid var(--tg-theme-button-color, #3390ec);
    background: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    max-width: 100px;
    text-overflow: ellipsis;
    overflow: hidden;
}

.chat-select:focus {
    outline: none;
    border-color: var(--tg-theme-button-color, #3390ec);
    box-shadow: 0 0 0 2px rgba(51, 144, 236, 0.2);
}

.filters {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.filter-btn {
    flex: 1;
    padding: 8px 16px;
    border: 1px solid var(--tg-theme-button-color, #3390ec);
    background: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-button-color, #3390ec);
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.filter-btn.active {
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #ffffff);
}

.filter-btn:hover:not(.active) {
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #ffffff);
    opacity: 0.9;
}

.filter-btn.active:hover {
    opacity: 0.9;
}

.filter-btn:active {
    opacity: 0.7;
}

.loading, .error, .empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--tg-theme-hint-color, #999999);
}

/* htmx loading indicator */
.htmx-indicator {
    display: none !important;
}

.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
    display: block !important;
}

/* Loading indicator styling */
#loading {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--tg-theme-bg-color, #ffffff);
    padding: 20px 40px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    font-size: 16px;
    font-weight: 500;
}

.error {
    color: #ff3333;
    background: #ffe6e6;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 16px;
}

.invoices-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
    margin-bottom: 20px;
}

.invoice-card {
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    border-radius: 12px;
    padding: 10px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    margin-bottom: 8px;
}

.invoice-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--tg-theme-hint-color, #e0e0e0);
}

.invoice-date {
    font-size: 12px;
    color: var(--tg-theme-hint-color, #999999);
}

.badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.badge-unpaid {
    background: #fff3cd;
    color: #856404;
}

.badge-paid {
    background: #d4edda;
    color: #155724;
}

.badge-deleted {
    background: #f8d7da;
    color: #721c24;
}

.invoice-body {
    margin-bottom: 12px;
}

.invoice-field {
    display: flex;
    margin-bottom: 8px;
    font-size: 14px;
}

.field-label {
    font-weight: 500;
    min-width: 100px;
    color: var(--tg-theme-hint-color, #666666);
    line-height: 1em;
}

.field-value {
    flex: 1;
    color: var(--tg-theme-text-color, #000000);
    word-break: break-word;
    line-height: 1em;
}

.field-value.amount {
    font-weight: 600;
    color: var(--tg-theme-button-color, #3390ec);
}

.invoice-actions {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.action-btn {
    flex: 1;
    min-width: 100px;
    padding: 8px 12px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    color: var(--tg-theme-button-color, #3390ec);
    border-width: 1px;
    border-style: solid;
    background: transparent;
}

.mark-paid {
    border-color: #28a745;
    color: var(--tg-theme-button-text-color, #000);
}

.mark-unpaid {
    border-color: #ffc107;
    color: var(--tg-theme-button-text-color, #000);
}

.cancel {
    border-color: #dc3545;
    color: white;
}

.action-btn:hover:not(:disabled) {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.action-btn:active:not(:disabled) {
    opacity: 0.7;
    transform: translateY(0);
}

.action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination {
    position: sticky;
    bottom: 0;
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    padding: 0;
    margin-top: auto;
    z-index: 10;
    border-top: 1px solid var(--tg-theme-hint-color, #e0e0e0);
}

.pagination div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 14px;
}

.pagination-btn {
    padding: 8px 16px;
    border: 1px solid var(--tg-theme-button-color, #3390ec);
    background: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-button-color, #3390ec);
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #ffffff);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-content {
    background: var(--tg-theme-bg-color, #ffffff);
    border-radius: 12px;
    max-width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* QR Display Styles */
.qr-display {
    padding: 0.5rem;
    background: var(--tg-theme-bg-color, #ffffff);
    border-radius: 12px;
}

.qr-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.qr-header h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--tg-theme-text-color, #000000);
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--tg-theme-hint-color, #999999);
    padding: 0;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    color: var(--tg-theme-text-color, #000000);
}

.qr-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.qr-image {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

.qr-deeplink {
    width: 100%;
}

.qr-deeplink label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--tg-theme-text-color, #000000);
}

.deeplink-container {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.deeplink-text {
    flex: 1;
    border-radius: 4px;
    font-size: 0.85rem;
    word-break: break-all;
    font-family: monospace;
    display: block;
    text-decoration: none;
}

.deeplink-text:hover {
    text-decoration: underline;
    opacity: 0.8;
}

.copy-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    white-space: nowrap;
}

.copy-btn:hover {
    opacity: 0.9;
}

/* Inline form styles - inputs appear within invoice card fields */

/* Inline form inputs within invoice fields */
.invoice-field input {
    flex: 1;
    padding: 0;
    border: none;
    border-bottom: 1px dashed var(--tg-theme-hint-color, #e0e0e0);
    font-size: 14px;
    font-family: inherit;
    background: transparent;
    color: var(--tg-theme-text-color, #000000);
    box-sizing: border-box;
    margin: 0;
    line-height: 1em;
}

.invoice-field input:focus {
    outline: none;
    border-bottom-color: var(--tg-theme-button-color, #3390ec);
    background: var(--tg-theme-bg-color, #ffffff);
    padding: 2px 4px;
    border-radius: 4px;
}

.invoice-field input.amount {
    font-weight: 600;
    color: var(--tg-theme-button-color, #3390ec);
}

.invoice-field input::placeholder {
    color: var(--tg-theme-hint-color, #999999);
    opacity: 0.6;
}


.save-btn {
    flex: 1;
    padding: 0.75rem;
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #ffffff);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
}

.save-btn:hover {
    opacity: 0.9;
}

.cancel-btn {
    flex: 1;
    padding: 0.75rem;
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    color: var(--tg-theme-text-color, #000000);
    border: 1px solid var(--tg-theme-hint-color, #e0e0e0);
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
}

.cancel-btn:hover {
    background: var(--tg-theme-hint-color, #e0e0e0);
}

.pagination-btn:active:not(:disabled) {
    opacity: 0.7;
    transform: translateY(0);
}

.page-info {
    font-size: 14px;
    color: var(--tg-theme-text-color, #000000);
}

@media (max-width: 480px) {
    .invoice-field {
        flex-direction: column;
    }

    .field-label {
        margin-bottom: 4px;
    }

    .action-btn {
        min-width: auto;
    }
}