/* Global mobile-first enhancements and app UI shell */
:root {
    --app-bg: #f4f6fb;
    --app-surface: #ffffff;
    --app-text: #0f172a;
    --app-muted: #64748b;
    --app-border: #e2e8f0;
    --app-primary: #1e40af;
    --app-primary-dark: #1e3a8a;
    --app-accent: #f97316;
    --app-radius: 16px;
    --app-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
    --mobile-topbar-height: 56px;
}

body.layout-gym,
body.layout-admin,
body.layout-app {
    background: var(--app-bg);
    color: var(--app-text);
}

img {
    max-width: 100%;
    height: auto;
}

button, .btn, input, select, textarea {
    min-height: 44px;
}

input, select, textarea {
    font-size: 1rem;
}

.page-header {
    gap: 12px;
}

.mobile-topbar {
    position: fixed;
    inset: 0 0 auto 0;
    height: var(--mobile-topbar-height);
    background: var(--app-surface);
    border-bottom: 1px solid var(--app-border);
    display: none;
    align-items: center;
    gap: 12px;
    padding: 0 16px;
    z-index: 1200;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.mobile-topbar .mobile-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--app-text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.mobile-topbar .mobile-subtitle {
    font-size: 0.78rem;
    color: var(--app-muted);
    margin-top: 2px;
}

.mobile-topbar .mobile-actions {
    margin-left: auto;
    display: flex;
    gap: 8px;
}

.mobile-hamburger,
.mobile-back-btn {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    border: 1px solid var(--app-border);
    background: var(--app-surface);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mobile-hamburger:hover,
.mobile-back-btn:hover {
    border-color: rgba(30, 64, 175, 0.4);
    color: var(--app-primary);
}

.mobile-hamburger i,
.mobile-back-btn i {
    width: 20px;
    height: 20px;
}


.mobile-drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 1000;
}

.mobile-drawer-backdrop.is-open {
    opacity: 1;
    pointer-events: auto;
}

body.drawer-open {
    overflow: hidden;
}

@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    body {
        overflow-x: hidden;
    }

    .mobile-topbar {
        display: flex;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start !important;
        width: 100%;
        min-width: 0;
    }

    .navbar {
        padding: 12px 16px !important;
        flex-wrap: wrap;
        gap: 12px;
    }

    .navbar nav {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    .navbar nav a {
        margin-left: 0 !important;
    }

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

    .stat-card,
    .card {
        border-radius: 16px;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        min-width: 0;
    }

    .stat-card {
        flex-wrap: wrap;
        gap: 12px;
    }

    .stat-card .info {
        min-width: 0;
        width: 100%;
    }

    .stat-card .number,
    .stat-card .label {
        word-break: break-word;
        overflow-wrap: anywhere;
    }

    .main-content {
        margin-left: 0 !important;
        padding: calc(var(--mobile-topbar-height) + 16px) 16px 24px !important;
        height: auto !important;
        max-width: 100%;
        min-width: 0;
    }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        z-index: 1101;
        width: 260px;
    }

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

    .sidebar .logo span,
    .sidebar .subtitle,
    .sidebar .section-title,
    .sidebar nav ul li a span,
    .sidebar .user-info .info,
    .sidebar .logout button span {
        display: inline;
    }

    .table-scroll {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
        border-radius: 12px;
        border: 1px solid var(--app-border);
        background: var(--app-surface);
    }

    table.table-cards {
        border: none;
    }

    table.table-cards thead {
        display: none;
    }

    table.table-cards tbody,
    table.table-cards tr,
    table.table-cards td {
        display: block;
        width: 100%;
    }

    table.table-cards tbody tr {
        background: var(--app-surface);
        border-radius: 16px;
        margin-bottom: 12px;
        padding: 12px 14px;
        box-shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
        border: 1px solid var(--app-border);
        max-width: 100%;
        overflow: hidden;
    }

    table.table-cards tbody tr:last-child {
        margin-bottom: 0;
    }

    table.table-cards td {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 12px;
        padding: 6px 0;
        border-bottom: none;
        min-width: 0;
        word-break: break-word;
        overflow-wrap: anywhere;
    }

    table.table-cards td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--app-muted);
        font-size: 0.78rem;
        text-transform: uppercase;
        letter-spacing: 0.6px;
        flex: 0 0 42%;
        white-space: normal;
    }

    table.table-cards td[data-label=""]::before {
        display: none;
    }

    table.table-cards td > * {
        max-width: 100%;
        min-width: 0;
        text-align: right;
        overflow-wrap: anywhere;
    }

    .btn,
    button,
    input,
    select,
    textarea {
        min-height: 44px;
    }

    .card-header {
        width: 100%;
        min-width: 0;
        flex-wrap: wrap;
    }

    .card-header form {
        width: 100% !important;
        flex-wrap: wrap;
    }

    .card-header form input[type="text"],
    .card-header form input[type="search"] {
        min-width: 0 !important;
        width: 100%;
    }
}

@media (max-width: 520px) {
    .card-header {
        flex-direction: column;
        align-items: flex-start !important;
    }

    .card-header form {
        width: 100%;
        flex-wrap: wrap;
    }
}