/* ============================================
   BILLING APP - RESPONSIVE LAYOUT
   Desktop-first; safe fallbacks for tablet/mobile
   ============================================ */

/* Large desktop / ultra-wide: constrain content width */
@media (min-width: 1600px) {
    .content-inner {
        max-width: 1600px;
    }
}

/* Medium laptop: ensure tables and forms don't overflow */
@media (max-width: 1366px) {
    .dashboard-cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .bill-header-section {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .form-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .form-grid.ledger-filters {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .form-grid.ledger-filters .ledger-filter-state,
    .form-grid.ledger-filters .ledger-filter-from,
    .form-grid.ledger-filters .ledger-filter-to,
    .form-grid.ledger-filters .ledger-filter-action {
        grid-column: auto;
    }
}

/* Tablet and below: sidebar becomes overlay strip; main full width */
@media (max-width: 1024px) {
    .top-navbar {
        display: none !important;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        width: 100%;
        height: auto;
        max-height: 0;
        overflow: hidden;
        padding: 0;
        transition: max-height 0.3s ease;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    }

    body.sidebar-open .sidebar {
        max-height: 80vh;
        overflow-y: auto;
        padding: 12px 0;
    }

    .sidebar-nav {
        display: block;
        padding: 0 8px;
    }

    .sidebar-link {
        margin: 2px 8px;
        padding: 10px 12px;
        font-size: 0.9rem;
        justify-content: flex-start;
    }

    .main-content {
        margin-left: 0;
        margin-top: 0;
        padding: 76px 16px 16px;
    }

    .sidebar-toggle--mobile {
        display: flex;
        position: fixed;
        top: 12px;
        left: 12px;
        z-index: 95;
        width: 38px;
        height: 38px;
        border-radius: 10px;
        background: rgba(124, 58, 237, 0.14);
        backdrop-filter: blur(6px);
    }

    .footer {
        margin-left: 0;
    }

    .dashboard-cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px;
    }

    .bill-header-section {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .bill-totals-section .form-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .form-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Small tablet / large phone */
@media (max-width: 768px) {
    .top-navbar {
        padding: 0 12px;
        flex-wrap: wrap;
        min-height: var(--navbar-height);
        height: auto;
        padding-top: 10px;
        padding-bottom: 10px;
    }

    .main-content {
        padding: 12px;
    }

    .page-header {
        padding-left: 56px;
    }

    .dashboard-cards {
        grid-template-columns: 1fr;
    }

    .bill-header-section {
        grid-template-columns: 1fr;
    }

    .bill-totals-section .form-grid {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-grid.ledger-filters {
        grid-template-columns: 1fr;
    }

    .form-grid.reports-filters-form--range {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .form-grid.reports-filters-form--range > .form-group:first-of-type {
        grid-column: 1 / -1;
    }

    .form-grid.reports-filters-form--range .reports-range-from,
    .form-grid.reports-filters-form--range .reports-range-to {
        grid-column: span 1;
    }

    .form-grid.reports-filters-form--range .reports-filter-actions {
        grid-column: 1 / -1;
    }

    .search-form {
        flex-direction: column;
        align-items: stretch;
    }

    .search-form input[type="text"],
    .search-form input[type="date"] {
        min-width: 0;
    }

    .page-header {
        gap: 10px;
    }

    .page-header h1 {
        font-size: 1.25rem;
    }

    .quick-actions-grid,
    .quick-actions-row {
        gap: 8px;
    }

    .table-responsive {
        margin-left: -12px;
        margin-right: -12px;
        border-radius: 0;
        border-left: none;
        border-right: none;
    }

    .card {
        padding: 16px;
    }

    .card-value {
        font-size: 1.35rem;
    }
}

/* Reports date range: stack From / To on very narrow screens */
@media (max-width: 420px) {
    .form-grid.reports-filters-form--range {
        grid-template-columns: 1fr;
    }

    .form-grid.reports-filters-form--range > .form-group:first-of-type {
        grid-column: auto;
    }

    .form-grid.reports-filters-form--range .reports-filter-actions {
        grid-column: auto;
    }
}

/* Mobile */
@media (max-width: 600px) {
    .top-navbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .brand-title {
        font-size: 1rem;
    }

    .page-actions {
        width: 100%;
    }

    .page-actions .btn {
        flex: 1;
        text-align: center;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn,
    .form-actions a.btn {
        width: 100%;
        text-align: center;
    }

    .pagination a {
        padding: 6px 10px;
        font-size: 0.8rem;
    }

    .table th,
    .table td {
        padding: 8px 10px;
        font-size: 0.8rem;
    }

    .bill-items-table th,
    .bill-items-table td {
        padding: 6px 8px;
    }

    .bill-items-tfoot .bill-summary-label {
        font-size: 0.8rem;
        padding-right: 8px;
    }

    .bill-items-tfoot .bill-summary-amount-cell {
        min-width: 5.5rem;
    }
}

/* Prevent horizontal overflow on body */
html {
    overflow-x: hidden;
}

body {
    overflow-x: hidden;
}