/**
 * Admin dashboard style overhaul
 * Sidebar layout, borders, icons
 */

/* ----- Admin page base ----- */
.admin-page {
    min-height: 100vh;
    display: flex;
}

/* ----- Sidebar ----- */
.admin-sidebar {
    position: fixed;
    top: 56px;
    left: 0;
    width: 260px;
    height: calc(100vh - 56px);
    background: var(--color-surface);
    border-right: 2px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.2);
}

.sidebar-open-btn,
.sidebar-close-btn {
    display: none; /* shown on mobile only */
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    cursor: pointer;
}

.sidebar-open-btn:hover,
.sidebar-close-btn:hover {
    background: rgba(255, 255, 255, 0.08);
}

.sidebar-toggle-icon {
    display: block;
    width: 20px;
    height: 2px;
    background: currentColor;
    box-shadow: 0 -6px 0 currentColor, 0 6px 0 currentColor;
}

.admin-sidebar-header {
    display: none; /* shown on mobile only */
    flex-shrink: 0;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-xl);
    padding-right: var(--space-md);
    border-bottom: 2px solid var(--color-border);
    gap: var(--space-md);
}

.admin-sidebar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-text);
    text-decoration: none;
}

.admin-sidebar-brand:hover {
    color: var(--color-accent);
    text-decoration: none;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md) 0;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 0.75rem var(--space-xl);
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-fast), background var(--transition-fast);
    border-left: 3px solid transparent;
}

.sidebar-link:hover {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.05);
    text-decoration: none;
}

.sidebar-link.active {
    color: var(--color-accent);
    font-weight: 600;
    background: rgba(88, 166, 255, 0.1);
    border-left-color: var(--color-accent);
}

.sidebar-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    opacity: 0.9;
}

.sidebar-link.active .sidebar-icon {
    opacity: 1;
    color: var(--color-accent);
}

.sidebar-link-logout {
    color: var(--color-text-muted);
}

.sidebar-link-logout:hover {
    color: var(--color-error);
}

/* ----- Top navbar (unified with sidebar) ----- */
.admin-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    display: flex;
    align-items: stretch;
    z-index: 90;
    background: var(--color-surface);
    border-bottom: 2px solid var(--color-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.admin-topbar-sidebar-area {
    width: 260px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-sm);
    padding: 0 var(--space-xl);
    border-right: 2px solid var(--color-border);
    background: var(--color-surface);
}

.admin-topbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-text);
    text-decoration: none;
}

.admin-topbar-brand:hover {
    color: var(--color-accent);
    text-decoration: none;
}

.admin-topbar-main-area {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-lg);
    padding: 0 var(--space-xl);
}

.admin-topbar-user {
    font-weight: 600;
    color: var(--color-text);
    margin-right: auto;
}

.admin-topbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.admin-topbar-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.95rem;
    border-radius: var(--radius);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.admin-topbar-link:hover {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.05);
    text-decoration: none;
}

.admin-topbar-link.active {
    color: var(--color-accent);
    font-weight: 600;
    background: rgba(88, 166, 255, 0.1);
}

.admin-topbar-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: inherit;
}

.admin-topbar-icon svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.admin-topbar-robot {
    color: var(--color-accent);
}

.admin-topbar-robot svg {
    width: 22px;
    height: 22px;
}

.admin-topbar-link.admin-topbar-logout {
    color: var(--color-text-muted);
}

.admin-topbar-link.admin-topbar-logout:hover {
    color: var(--color-error);
}

.admin-topbar-lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.admin-lang-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2rem;
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-muted);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    text-decoration: none;
}

.admin-lang-btn:hover {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-text-muted);
}

.admin-lang-btn.is-active {
    color: var(--color-accent);
    background: rgba(88, 166, 255, 0.15);
    border-color: var(--color-accent);
}

/* Sidebar overlay (mobile) */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.sidebar-overlay.visible {
    display: block;
    opacity: 1;
}

/* Main content area */
.admin-main {
    flex: 1;
    margin-left: 260px;
    min-width: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 2rem 2.5rem;
}

/* ----- Mobile sidebar ----- */
@media (max-width: 768px) {
    .admin-sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
    }

    .admin-sidebar.open {
        transform: translateX(0);
    }

    .admin-sidebar-header {
        display: flex;
    }

    .sidebar-open-btn {
        display: flex;
        position: relative;
        top: auto;
        left: auto;
        z-index: 1;
        box-shadow: none;
    }

    .sidebar-close-btn {
        display: flex;
    }

    .admin-main {
        margin-left: 0;
        margin-top: 56px;
        padding: 1rem 1rem;
    }

    .admin-topbar-sidebar-area {
        width: 56px;
        min-width: 56px;
        justify-content: center;
        padding: 0;
    }

    .admin-topbar-brand {
        display: none;
    }

    .admin-topbar .sidebar-open-btn {
        display: flex;
        margin: 0;
    }

    .admin-topbar-main-area {
        padding: 0 var(--space-md);
        gap: var(--space-sm);
    }

    .admin-topbar-username,
    .admin-topbar-link-text {
        display: none;
    }

    .admin-topbar-link {
        padding: 0.5rem;
    }

    .admin-topbar-nav {
        gap: var(--space-sm);
    }

    .sidebar-overlay.visible {
        display: block;
    }

    .admin-page .container {
        min-width: 0;
        padding: 1rem;
    }

    .admin-page .page-title {
        font-size: 1.4rem;
    }

    .admin-page .card,
    .admin-page .dashboard-card {
        padding: var(--space-md);
    }

    .admin-page .schedule-calendar-wrap {
        padding: 0.75rem;
    }

    .admin-page .schedule-list-wrap .card {
        padding: var(--space-md);
    }

    .admin-page table.data-table th,
    .admin-page table.data-table td {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }

    .admin-page .dashboard-card .value {
        font-size: 1.5rem;
    }

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

@media (max-width: 480px) {
    .admin-main {
        padding: 0.75rem;
    }

    .admin-page .container {
        padding: 0.75rem;
    }

    .admin-page .page-title {
        font-size: 1.25rem;
    }
}

/* ----- Container & spacing (dynamic widths) ----- */
.admin-page .container {
    width: 100%;
    min-width: 0;
    max-width: min(1100px, 100%);
    margin: 0 auto;
    padding: 2.5rem 3rem;
    flex: 1;
}

@media (min-width: 900px) {
    .admin-page .container {
        padding: 3rem 4rem;
    }
}

.admin-page .page-title {
    margin: 0 0 var(--space-xl);
    font-size: 1.75rem;
    font-weight: 600;
    padding-bottom: var(--space-md);
    border-bottom: 2px solid var(--color-border);
}

.admin-page .page-title-with-icon {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.admin-page .page-title-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--radius);
    background: rgba(88, 166, 255, 0.15);
    color: var(--color-accent);
    flex-shrink: 0;
}

.admin-page .page-title-icon svg {
    width: 1.25rem;
    height: 1.25rem;
}

/* ----- Cards with clear borders (responsive) ----- */
.admin-page .card {
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    min-width: 0;
}

.admin-page .card-title {
    margin: 0 0 var(--space-lg);
    font-size: 1.2rem;
    font-weight: 600;
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

/* ----- Tables with clear borders (responsive) ----- */
.admin-page .table-wrap {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow-x: auto;
    overflow-y: visible;
    min-width: 0;
}

.admin-page table.data-table {
    border: none;
    width: 100%;
    min-width: 360px;
}

.admin-page table.data-table th,
.admin-page table.data-table td {
    padding: 0.875rem 1.125rem;
    border-bottom: 1px solid var(--color-border);
}

.admin-page table.data-table th {
    background: rgba(0, 0, 0, 0.25);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-muted);
}

.admin-page table.data-table tr:last-child td {
    border-bottom: none;
}

.admin-page table.data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.04);
}

/* ----- Dashboard cards overhaul (responsive) ----- */
.admin-page .dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(240px, 100%), 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.admin-page .dashboard-card {
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    min-width: 0;
}

.admin-page .dashboard-card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 4px 16px rgba(88, 166, 255, 0.1);
}

.admin-page .dashboard-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.admin-page .dashboard-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius);
    background: rgba(88, 166, 255, 0.15);
    color: var(--color-accent);
    flex-shrink: 0;
}

.admin-page .dashboard-card-icon svg {
    width: 1.25rem;
    height: 1.25rem;
}

.admin-page .dashboard-card h3 {
    margin: 0;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.admin-page .dashboard-card .value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
}

.admin-page .dashboard-card .dashboard-card-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin: 0;
}

.admin-page .dashboard-card a {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: auto;
    font-size: 0.9rem;
    font-weight: 500;
}

.admin-page .dashboard-card a:hover {
    text-decoration: none;
}

.admin-page .dashboard-card .card-link-icon {
    width: 0.9rem;
    height: 0.9rem;
    opacity: 0.8;
}

/* ----- Alerts with borders ----- */
.admin-page .alert {
    border: 1px solid transparent;
    border-radius: var(--radius);
}

.admin-page .alert-success {
    border-color: rgba(63, 185, 80, 0.3);
}

.admin-page .alert-error {
    border-color: rgba(248, 81, 73, 0.3);
}

/* ----- Buttons with borders ----- */
.admin-page .btn {
    border: 1px solid transparent;
}

.admin-page .btn-primary {
    border-color: var(--color-accent);
}

.admin-page .btn-secondary {
    border: 2px solid var(--color-border);
}

.admin-page .btn-secondary:hover {
    border-color: var(--color-text-muted);
}

.admin-page .btn-danger {
    border-color: #b62324;
}

/* ----- Form inputs with clearer borders (responsive) ----- */
.admin-page .form-group input,
.admin-page .form-group select,
.admin-page .form-group textarea {
    border: 2px solid var(--color-border);
    width: 100%;
    min-width: 0;
    max-width: min(400px, 100%);
}

.admin-page .form-group input:focus,
.admin-page .form-group select:focus,
.admin-page .form-group textarea:focus {
    border-color: var(--color-accent);
}

/* ----- Filter pills (responsive) ----- */
.admin-page .filter-pills {
    flex-wrap: wrap;
    min-width: 0;
}

.admin-page .filter-pills a {
    border: 2px solid var(--color-border);
}

.admin-page .filter-pills a.active {
    border-color: var(--color-accent);
}

/* ----- Badges ----- */
.admin-page .badge {
    border: 1px solid transparent;
}

/* ----- Schedule page padding ----- */
.admin-page .schedule-calendar-wrap {
    padding: 2rem 2.5rem;
}

.admin-page .schedule-list-wrap .card {
    padding: 2rem 2.5rem;
}

.admin-page .schedule-views {
    margin-bottom: var(--space-lg);
}

/* FullCalendar responsive (mobile) */
@media (max-width: 768px) {
    .admin-page .fc .fc-toolbar {
        flex-direction: column;
        gap: var(--space-md);
        align-items: stretch;
    }
    .admin-page .fc .fc-toolbar-chunk {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-sm);
    }
    .admin-page .fc .fc-toolbar-title {
        font-size: 1.1rem;
    }
    .admin-page .fc .fc-button {
        padding: 0.4rem 0.6rem;
        font-size: 0.85rem;
    }
    .admin-page .view-tabs {
        flex-wrap: wrap;
    }
    .admin-page .view-tab {
        flex: 1;
        min-width: 120px;
    }
}

/* ----- View tabs (Schedule) ----- */
.admin-page .view-tab {
    border: 2px solid var(--color-border);
}

.admin-page .view-tab.active {
    border-color: var(--color-accent);
}

/* ----- Modal borders ----- */
.admin-page .modal,
.admin-page .form-modal {
    border: 2px solid var(--color-border);
}

/* ----- Edit project modal: wider layout ----- */
.edit-project-modal-content {
    max-width: 100%;
    min-width: 0;
}
.edit-project-title {
    margin: 0 0 var(--space-lg);
    font-size: 1.35rem;
    font-weight: 600;
    padding-bottom: var(--space-sm);
}
.edit-project-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 var(--space-md);
}
.edit-project-form .form-group-full {
    grid-column: 1 / -1;
}
.edit-project-form-row {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}
.edit-project-form .form-group {
    margin-bottom: var(--space-md);
}
.edit-project-form .form-group input,
.edit-project-form .form-group select,
.edit-project-form .form-group textarea {
    max-width: none;
}
.edit-project-form .form-actions {
    grid-column: 1 / -1;
    margin-top: var(--space-sm);
}
.edit-project-actions {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: var(--space-md);
    align-items: center;
    flex-wrap: wrap;
}

/* ----- Payments section ----- */
.payments-section {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}
.payments-section-title {
    margin: 0 0 var(--space-lg);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-text);
}
.payments-summary {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}
.payment-stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-md) var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
    min-width: 120px;
}
.payment-stat-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.payment-stat-value {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-text);
}
.payment-stat-balance .payment-stat-value {
    color: var(--color-success);
}
.payment-stat-overpaid .payment-stat-value {
    color: var(--color-error);
}
.payments-table-wrap {
    overflow-x: auto;
    margin-bottom: var(--space-lg);
}
.payments-table {
    width: 100%;
    min-width: 360px;
}
.payments-table th {
    white-space: nowrap;
}
.payments-table-action {
    width: 100px;
    text-align: right;
}
.payments-amount {
    font-variant-numeric: tabular-nums;
    font-weight: 500;
}
.payments-empty {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--space-xl) !important;
}
.payment-remove-form {
    display: inline;
}

/* Add payment form */
.add-payment-form-wrap {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}
.add-payment-title {
    margin: 0 0 var(--space-md);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-muted);
}
.add-payment-fields {
    display: grid;
    grid-template-columns: 140px 160px 1fr auto;
    gap: var(--space-md);
    align-items: end;
}
.add-payment-form .form-group {
    margin-bottom: 0;
}
.add-payment-form .form-group label {
    margin-bottom: var(--space-xs);
}
.add-payment-form .form-group input {
    width: 100%;
    max-width: none;
}
.add-payment-submit {
    display: flex;
    align-items: flex-end;
}
.add-payment-submit .btn {
    white-space: nowrap;
}
@media (max-width: 640px) {
    .edit-project-form-row {
        grid-template-columns: 1fr;
    }
    .payments-summary {
        flex-direction: column;
    }
    .payment-stat {
        min-width: 0;
    }
    .add-payment-fields {
        grid-template-columns: 1fr;
    }
    .add-payment-submit {
        grid-column: 1 / -1;
    }
}