/* ============================================================
   RRB Responsive Framework — rrb-responsive.css
   Layout and scaling ONLY. No colors, typography, or appearance.
   Master copy: /opt/stacks/ops/shared/css/rrb-responsive.css
   Sync via: /opt/stacks/ops/shared/sync-css.sh
   DO NOT EDIT LOCAL COPIES — changes will be overwritten.
   ============================================================ */

/* === Layout Shell === */
.main-content {
    flex: 1;
    margin-left: 220px;
    min-height: 100vh;
    transition: margin-left 0.2s ease;
    overflow-x: hidden;
}
.main-content.sidebar-collapsed { margin-left: 56px; }

.page-container {
    padding: 24px;
    max-width: 1400px;
    overflow-x: hidden;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

/* === Stats Grid === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}
.stats-grid-3 { grid-template-columns: repeat(3, 1fr); }
.stats-grid-5 { grid-template-columns: repeat(5, 1fr); }
.stats-grid-6 { grid-template-columns: repeat(6, 1fr); }

/* === Charts Grid === */
.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}
.charts-grid-3 { grid-template-columns: repeat(3, 1fr); }

/* Chart children: prevent content overflow */
.charts-grid > * { min-width: 0; overflow: hidden; }
.charts-grid-3 > * { min-width: 0; overflow: hidden; }

/* === Monitoring Grid === */
.monitoring-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}
.monitoring-grid > * { min-width: 0; overflow: hidden; }

/* === Detail Grid (key-value pairs) === */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.detail-meta {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 4px 12px;
    font-size: 13px;
}

/* === Form Row (side-by-side fields) === */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}

/* === Mobile Top Bar === */
.mobile-topbar {
    display: none;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 90;
    padding: 12px 16px;
    padding-top: max(12px, env(safe-area-inset-top, 12px));
}

/* === Responsive Table → Cards === */
/* Base table layout is in project app.css (colors, fonts).
   This handles the structural transform at breakpoints.
   Projects override appearance (background, border colors) via CSS vars. */

/* ============================================================
   BREAKPOINT: Small Desktop (max-width: 1024px)
   ============================================================ */
@media (max-width: 1024px) {
    .page-container { padding: 20px; }
    .stats-grid-5 { grid-template-columns: repeat(3, 1fr); }
    .stats-grid-6 { grid-template-columns: repeat(3, 1fr); }
    .charts-grid-3 { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   BREAKPOINT: Tablet (max-width: 768px)
   ============================================================ */
@media (max-width: 768px) {
    /* Layout shell */
    .main-content { margin-left: 0 !important; }
    .page-container { padding: 16px; }
    .mobile-topbar { display: flex; }

    /* Page header — stack on tablet */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    /* Grids */
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .stats-grid-3 { grid-template-columns: 1fr 1fr; }
    .stats-grid-5 { grid-template-columns: 1fr 1fr; }
    .stats-grid-6 { grid-template-columns: 1fr 1fr; }
    .charts-grid { grid-template-columns: 1fr; }
    .charts-grid-3 { grid-template-columns: 1fr; }
    .monitoring-grid { grid-template-columns: 1fr; }

    /* Detail + form — stack */
    .detail-grid { grid-template-columns: 1fr; }
    .detail-meta { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }

    /* Responsive table → card layout */
    .responsive-table thead { display: none; }
    .responsive-table tbody tr {
        display: block;
        border: 1px solid var(--color-border, #eee);
        border-radius: var(--radius-lg, 8px);
        padding: 14px;
        margin-bottom: 10px;
    }
    .responsive-table tbody td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 5px 0;
        border: none;
        font-size: 14px;
    }
    .responsive-table tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        font-size: 12px;
        margin-right: 12px;
        flex-shrink: 0;
    }
}

/* ============================================================
   BREAKPOINT: Phone (max-width: 480px)
   ============================================================ */
@media (max-width: 480px) {
    /* Layout shell */
    .page-container { padding: 12px; }
    .mobile-topbar { padding: 10px 12px; }

    /* Grids — 2-col with compact gap */
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
    .stats-grid-3 { grid-template-columns: 1fr; }
    .stats-grid-5 { grid-template-columns: 1fr; }
    .stats-grid-6 { grid-template-columns: 1fr; }

    /* Responsive table — compact */
    .responsive-table tbody tr { padding: 10px; }
    .responsive-table tbody td { font-size: 13px; }
}

/* ============================================================
   BREAKPOINT: Very Small Phone (max-width: 360px)
   ============================================================ */
@media (max-width: 360px) {
    .stats-grid { grid-template-columns: 1fr; }
    .page-container { padding: 10px; }
}

/* ============================================================
   BREAKPOINT: Large Desktop (min-width: 1280px)
   ============================================================ */
@media (min-width: 1280px) {
    /* Optional enhancements for wide screens */
    .stats-grid-6 { grid-template-columns: repeat(6, 1fr); }
}

/* ============================================================
   TOUCH DETECTION
   ============================================================ */
@media (hover: none) {
    /* Minimum 44px touch targets */
    .btn, button { min-height: 44px; }
    .btn-sm { min-height: 36px; padding: 8px 12px; }

    /* No hover effects on touch */
    .responsive-table tbody tr:hover { background: inherit; }

    /* Larger tap areas for interactive elements */
    .badge { padding: 4px 10px; }
}