/* ============================================================================
   BrannMotion — Responsive Layout Layer
   Loaded after the base page styles and redesign.css.
   Breakpoints: mobile <= 768px, tablet 769px-1199px, desktop >= 1200px.
   ============================================================================ */

/* Design tokens (spacing scale per update.md §16). */
:root {
    --space-xs: 6px;
    --space-sm: 10px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --sidebar-width: 260px;
}

 /* Shared sizing and overflow guards */
html,
body {
    min-width: 320px;
    overflow-x: hidden;
}

.app-layout.sidebar-active {
    min-height: 100dvh;
    align-items: stretch;
}

.main-content,
.screen,
.glass-card,
.flow-box,
.table-card,
.generator-box,
.docs-content,
.docs-code-panel {
    min-width: 0;
}

.main-content {
    width: 100%;
    max-width: none;
}

img,
svg,
video,
canvas {
    max-width: 100%;
}

button,
a,
input,
select,
textarea {
    max-width: 100%;
}

input,
select,
textarea {
    min-width: 0;
}

.table-responsive {
    max-width: 100%;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    -webkit-overflow-scrolling: touch;
}

.table-responsive table {
    min-width: 640px;
}

/* Tablet: keep the full navigation visible and use the available width well. */
@media (min-width: 768px) and (max-width: 1023px) {
    body {
        overflow-x: hidden;
    }

    .app-layout.sidebar-active {
        display: grid;
        grid-template-columns: 232px minmax(0, 1fr);
        flex-direction: initial;
    }

    .app-sidebar {
        position: sticky;
        inset: 0 auto auto 0;
        width: 232px;
        min-width: 232px;
        height: 100dvh;
        padding: 14px 12px;
        overflow: hidden;
    }

    .sidebar-nav {
        min-height: 0;
    }

    .sidebar-link {
        margin-inline: 0 !important;
        padding: 7px 10px !important;
        font-size: 0.78rem;
        gap: 8px;
    }

    .nav-category {
        padding-inline: 10px !important;
        font-size: 0.6rem !important;
    }

    .sidebar-close-btn,
    .mobile-top-bar,
    .sidebar-overlay {
        display: none !important;
    }

    .main-content {
        padding: 28px clamp(22px, 3vw, 42px);
        min-width: 0;
        min-height: 100dvh;
        overflow-x: clip;
    }

    .dashboard-header .section-title {
        font-size: clamp(1.5rem, 2.3vw, 1.85rem) !important;
    }

    .stats-grid,
    .admin-stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    }

    .purchase-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 18px !important;
    }

    .admin-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 18px;
    }

    .admin-grid > .table-card:only-child,
    .admin-grid > .table-card:last-child:nth-child(odd) {
        grid-column: 1 / -1;
    }

    .glass-card {
        border-radius: 18px !important;
    }

    .generator-box,
    .table-card {
        padding: 22px !important;
    }

    .panel-header-desc {
        align-items: flex-start;
    }

    .docs-container {
        grid-template-columns: 220px minmax(0, 1fr) !important;
        grid-template-rows: minmax(420px, auto) minmax(360px, auto) !important;
        height: auto !important;
        min-height: 780px;
        overflow: visible !important;
    }

    .docs-sidebar,
    .docs-content {
        min-width: 0;
        min-height: 0;
    }

    .docs-sidebar {
        padding: 16px !important;
    }

    .docs-toggle-btn {
        display: none !important;
    }

    .docs-sidebar-menu {
        display: flex !important;
    }

    .docs-content {
        min-width: 0;
        padding: 28px 24px;
    }

    .docs-code-panel {
        grid-column: 1 / -1;
        min-height: 360px;
        max-height: 440px;
        border-left: none;
        border-top: 1px solid #1e293b;
    }

    .apk-banner {
        flex-wrap: wrap;
    }

    .apk-banner-content {
        min-width: 0;
        flex: 1 1 320px;
    }

    .apk-banner-btn {
        flex: 0 0 auto;
    }

    .profile-info-row {
        gap: 16px;
    }

    .chat-message-bubble {
        max-width: min(75%, 560px);
    }
}

/* Desktop: wider, calm grids with a contained reading measure. */
@media (min-width: 1024px) {
    .app-layout.sidebar-active {
        display: grid;
        grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
        flex-direction: initial;
    }

    .app-sidebar {
        position: sticky;
        top: 0;
        align-self: start;
        width: var(--sidebar-width);
        min-width: var(--sidebar-width);
        height: 100dvh;
        overflow: hidden;
    }

    .sidebar-close-btn,
    .mobile-top-bar,
    .sidebar-overlay {
        display: none !important;
    }

    .main-content {
        width: 100%;
        max-width: 1600px;
        margin-right: auto;
        padding: 36px clamp(34px, 4vw, 64px);
        min-width: 0;
        min-height: 100dvh;
        overflow-x: clip;
    }

    .page-container {
        width: min(100%, 1500px);
        margin-inline: auto;
    }

    .screen {
        width: 100%;
        max-width: 1500px;
        margin-inline: auto;
    }

    .stats-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
    }

    /* Purchase: 2x2 grid (Reseller|Premium / Auto Gen|VIP) per update.md §7. */
    .purchase-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    }

    .admin-stats-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
    }

    .admin-grid {
        grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    }

    /* Secondary admin tables span the full width so they read like real reports. */
    #admin-transactions-card,
    #admin-upgrades-card,
    #admin-duplicates-card {
        grid-column: 1 / -1;
    }

    .docs-container {
        grid-template-columns: 240px minmax(0, 1fr) minmax(300px, 400px) !important;
        height: min(860px, calc(100dvh - 120px)) !important;
    }

    .docs-content {
        min-width: 0;
        padding: 42px clamp(28px, 3vw, 48px);
    }

    .docs-code-panel {
        min-width: 0;
    }

    .generator-box,
    .table-card {
        padding: 28px !important;
    }

    .chat-message-bubble {
        max-width: min(70%, 680px);
    }
}

/* Wide desktop: keep content from sprawling on very large monitors. */
@media (min-width: 1440px) {
    .main-content {
        max-width: 1600px;
    }

    .screen,
    .page-container {
        max-width: 1500px;
    }
}

/* Keep the existing mobile drawer rules authoritative. */
@media (max-width: 767px) {
    .app-layout.sidebar-active {
        display: flex;
        flex-direction: column;
    }

    .app-sidebar {
        position: fixed;
        left: -300px;
        top: 0;
        bottom: 0;
        width: 280px;
        min-width: 0;
        height: 100dvh;
    }

    .app-sidebar.active {
        left: 0;
    }

    .main-content {
        min-width: 0;
        overflow-x: hidden;
    }

    .mobile-top-bar {
        padding-top: env(safe-area-inset-top, 0);
    }

    .table-responsive table {
        min-width: 650px;
    }

    .apk-banner-content,
    .apk-banner-btn {
        width: 100%;
    }

    .lifetime-info-box {
        margin-top: 18px !important;
        margin-bottom: 22px !important;
        align-items: flex-start !important;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
}

@media (prefers-reduced-motion: reduce) {
    .app-sidebar,
    .glass-card,
    .btn,
    .sidebar-link {
        transition: none !important;
    }
}