/*
 * app-layout.css
 * MA-PRO Application Shell — Layout, Navigation & Component Styles
 *
 * Extracted from layout.html <style> block for browser caching and
 * reduced HTML payload. Loaded after theme-tokens.css and root_variables.css
 * so CSS custom properties are already available.
 *
 * ⚠️  LOAD ORDER (layout.html <head>):
 *   1. theme-tokens.css   — UI Shell tokens (--app-bg, --card-bg, etc.)
 *   2. root_variables.css — Semantic tokens + component resets
 *   3. THIS FILE           — Layout shell + dark-mode overrides
 *
 * Sections:
 *   1.  Loader suppression & scroll behaviour
 *   2.  CSS custom property defaults (light mode)
 *   3.  Dark mode overrides
 *   4.  Dark mode component fixes
 *   5.  Standard layout shell (body, sidebar, topbar, content)
 *   6.  Sidebar navigation styles
 *   7.  Topbar styles
 *   8.  Layout containers
 *   9.  Anti-FOUC background rules
 *   10. Dashboard background override
 *   11. Card & dropdown styles
 *   12. Scrollbar styles
 *   13. Flash toast notifications
 *   14. Mobile sidebar
 *   15. Responsive
 *   16. Consent banner
 *   17. Offcanvas & misc
 *   18. Dark mode granular fixes (inputs, tables, modals, etc.)
 */


/* =========================================================================
   1. LOADER SUPPRESSION & SCROLL BEHAVIOUR
   ========================================================================= */

/* Hard-suppress any loading bars / progress indicators */
body::before, body::after,
.loading,
#nprogress, .pace {
    display: none !important;
    opacity: 0 !important;
    width: 0 !important;
    height: 0 !important;
    animation: none !important;
    content: none !important;
}

/* Prevent pull-to-refresh on Android Chrome */
body {
    overscroll-behavior-y: contain !important;
}


/* =========================================================================
   2. CSS CUSTOM PROPERTY DEFAULTS (Light Mode)
   ========================================================================= */
:root {
    /* --- SHARED --- */
    --brand-primary: #2563eb;
    --brand-hover: #1d4ed8;
    --brand-primary-dark: color-mix(in srgb, var(--brand-primary) 75%, black);
    --sidebar-width: 260px;
    --topbar-height: 64px;
    --radius-std: 0.5rem;

    /* --- LIGHT MODE --- */
    --body-bg: #f8fafc;
    --card-bg: #ffffff;
    --text-dark: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;

    /* Sidebar — dark Glassmorphism tone */
    --sidebar-bg: #12151a;
    --sidebar-text: #e2e8f0;
    --sidebar-text-active: #ffffff;
    --sidebar-item-hover: rgba(255, 255, 255, 0.08);
    --hover-bg: #f1f5f9;
}


/* =========================================================================
   3. DARK MODE BASE OVERRIDES
   ========================================================================= */
[data-bs-theme="dark"] {
    --body-bg: #1a1d23;
    --card-bg: #22262e;
    --text-dark: #dde1e8;
    --text-muted: #8892a4;
    --border-color: rgba(255, 255, 255, 0.08);
    --hover-bg: rgba(255, 255, 255, 0.04);
    --sidebar-bg: #12151a;
    --sidebar-text: #dee2e6;
    --brand-primary-dark: color-mix(in srgb, var(--brand-primary) 60%, black);
}


/* =========================================================================
   4. DARK MODE COMPONENT OVERRIDES
   ========================================================================= */

/* Cards, list groups, shadows */
[data-bs-theme="dark"] .bg-white,
[data-bs-theme="dark"] .bg-light,
[data-bs-theme="dark"] .card,
[data-bs-theme="dark"] .list-group-item,
[data-bs-theme="dark"] .shadow-sm,
[data-bs-theme="dark"] .shadow {
    background-color: var(--card-bg) !important;
    color: var(--text-dark) !important;
    border-color: var(--border-color) !important;
    transition: none !important;
}

/* Hamburger menu visibility */
[data-bs-theme="dark"] .sidebar-toggler,
[data-bs-theme="dark"] .sidebar-toggler i {
    color: #ffffff !important;
}

/* Headings and text */
[data-bs-theme="dark"] h1, [data-bs-theme="dark"] h2,
[data-bs-theme="dark"] h3, [data-bs-theme="dark"] h4,
[data-bs-theme="dark"] h5, [data-bs-theme="dark"] h6,
[data-bs-theme="dark"] p, [data-bs-theme="dark"] span,
[data-bs-theme="dark"] div {
    color: var(--text-dark);
}

/* Form controls */
[data-bs-theme="dark"] .form-control,
[data-bs-theme="dark"] .form-select,
[data-bs-theme="dark"] .input-group-text {
    background-color: #2c2c2c !important;
    border-color: var(--border-color) !important;
    color: #fff !important;
}
[data-bs-theme="dark"] .form-control::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}


/* =========================================================================
   5. STANDARD LAYOUT SHELL
   ========================================================================= */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--body-bg);
    color: var(--text-dark);
}

a {
    color: var(--brand-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}
a:hover { color: var(--brand-hover); }


/* =========================================================================
   6. SIDEBAR STYLES
   ========================================================================= */

/*
 * Sidebar — background driven by Theme Engine via --panel-bg-rgb.
 * ⚠️  ANTI-FLICKER: rgba() + -rgb triplet preserves glass effect while
 *     colour follows --panel-bg set synchronously by theme-core.js.
 */
.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background-color: var(--panel-bg, #12151a);
    color: var(--text-on-panel, #e2e8f0);
    display: flex;
    flex-direction: column;
    height: calc(100vh - var(--topbar-height));
    position: sticky;
    top: var(--topbar-height);
    z-index: 1020;
    border-right: none !important;
    /* Glassmorphism: subtle right-edge glow */
    box-shadow:
        4px 0 20px rgba(0, 0, 0, 0.45),
        inset -1px 0 0 rgba(255, 255, 255, 0.06);
}

/* sidebar-nav-scrollable needs min-height: 0 for flex to work correctly */
.sidebar-nav-scrollable {
    flex: 1 1 auto;
    overflow-y: auto;
    min-height: 0;
    padding: 1rem 0.75rem;
}

/* Bottom ul (Cockpit, Komunikace, Administrace) must not grow, only shrink */
.sidebar > ul.nav { flex-shrink: 0; }

/*
 * Sidebar nav-link — text follows --text-on-panel (auto-WCAG for panel bg).
 * ⚠️  ANTI-FLICKER: transition deliberately limited to background-color only.
 *     No color transition — prevents text flash when theme-core.js sets tokens.
 */
.sidebar .nav-link {
    color: var(--text-on-panel, #e2e8f0) !important;
    padding: 0.75rem 1rem;
    margin-bottom: 0.25rem;
    border-radius: 0.375rem;
    font-weight: 500;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    transition: background-color 0.2s, color 0.2s;
}

/* Sidebar icons — muted colour (follows --text-muted) */
.sidebar .nav-link i {
    font-size: 1.2rem;
    margin-right: 0.75rem;
    color: var(--text-muted, #8892a4) !important;
    transition: color 0.2s;
}

.sidebar .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--text-on-panel, #ffffff) !important;
}
.sidebar .nav-link:hover i { color: var(--text-on-panel, #ffffff) !important; }

/* Active item — Glassmorphism pastel blue (brand-primary accent, fixed across themes) */
.sidebar .nav-link.active {
    background: rgba(108, 142, 191, 0.16);
    color: var(--brand-primary, #6C8EBF) !important;
    font-weight: 600;
    border-left: 2px solid rgba(108, 142, 191, 0.55);
    padding-left: calc(1rem - 2px);
    box-shadow: none;
}
.sidebar .nav-link.active i {
    color: var(--brand-primary, #6C8EBF) !important;
    opacity: 1;
}

/* Section headings (Správa, Ekonomika…) */
.sidebar-heading {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted, #8892a4);
    opacity: 0.7;
    font-weight: 700;
    padding: 1rem 1rem 0.5rem 1rem;
    margin-top: 0.5rem;
}
.sidebar .dropdown-divider {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin: 1rem 0;
}

/* Sidebar dropdown — always dark glass */
.sidebar .dropdown-menu {
    background-color: rgba(var(--panel-bg-rgb, 18, 21, 26), 0.97) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
}
.sidebar .dropdown-item { color: var(--text-on-panel, #cbd5e1) !important; }
.sidebar .dropdown-item:hover {
    background-color: rgba(255, 255, 255, 0.08) !important;
    color: var(--text-on-panel, #fff) !important;
}


/* =========================================================================
   7. TOP NAVBAR STYLES
   ========================================================================= */

/*
 * Top Navbar — background driven by Theme Engine via --panel-bg-rgb.
 * Glassmorphism glass effect preserved; colour follows user's panel choice.
 */
.top-navbar {
    background: rgba(var(--panel-bg-rgb, 18, 21, 26), 0.92) !important;
    backdrop-filter: blur(16px) !important;
    -webkit-backdrop-filter: blur(16px) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07) !important;
    height: var(--topbar-height);
    position: sticky;
    top: 0;
    z-index: 1030;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Search input inside topbar */
.top-navbar .form-control,
.top-navbar input[type="search"],
#global-project-search-input {
    background: rgba(255, 255, 255, 0.10) !important;
    border: 1px solid rgba(255, 255, 255, 0.13) !important;
    color: var(--text-on-panel, #dde1e8) !important;
}
.top-navbar .form-control::placeholder,
#global-project-search-input::placeholder {
    color: rgba(255, 255, 255, 0.40) !important;
}

/* Topbar text tokens */
.navbar-brand-custom {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-on-panel, #dde1e8);
    text-transform: uppercase;
}
.navbar-brand-custom span { color: var(--brand-primary, #6C8EBF); }
.top-navbar .text-muted, .top-navbar .text-secondary { color: var(--text-muted, #8892a4) !important; }
.top-navbar .text-dark { color: var(--text-on-panel, #dde1e8) !important; }
.top-navbar .btn-link { color: var(--text-muted, #8892a4) !important; }
.top-navbar .btn-link:hover { color: var(--text-on-panel, #dde1e8) !important; }
.top-navbar .text-secondary,
.top-navbar .bi { color: var(--text-muted, #8892a4); }
.top-navbar .nav-link { color: var(--text-on-panel, #dde1e8) !important; }
.top-navbar .fw-bold { color: var(--text-on-panel, #dde1e8) !important; }
/* Jméno přihlášeného uživatele — používá hlavní systémovou barvu motivu */
.top-navbar .mapro-user-name { color: var(--brand-primary) !important; }


/* =========================================================================
   8. LAYOUT CONTAINERS
   ========================================================================= */
.app-container {
    display: flex;
    flex-direction: row;
    min-height: calc(100vh - var(--topbar-height));
}
.main-content {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    min-width: 0;
    background-color: var(--body-bg);
}
.main-content-inner {
    padding: 0.5rem 2rem 2rem 2rem;
    flex-grow: 1;
}
.main-content-inner > h1:first-child,
.main-content-inner > h2:first-child { margin-top: 0.5rem !important; }


/* =========================================================================
   9. ANTI-FOUC BACKGROUND RULES
   =========================================================================
   ⚠️  ANTI-FLICKER: html uses CSS var — theme-core.js sets it synchronously
   in <head> BEFORE first render, so <html> NEVER flashes with a wrong colour.
   All transition properties are set to `none` to prevent any animation
   during theme token application (which happens synchronously at boot).
   ========================================================================= */
html {
    background-color: var(--app-bg, #f1f5f9);
    min-height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--app-bg, #f1f5f9) !important;
    /*
     * --text-main: theme-core.js computes from luminance or uses user setting.
     * Fallback #0f172a = dark text on light background (default light mode).
     */
    color: var(--text-main, var(--text-on-app, #0f172a)) !important;
    overscroll-behavior: none !important;
    min-height: 100%;
    margin: 0;
    padding: 0;
    /*
     * ⚠️  ANTI-FLICKER: transition on color DISABLED.
     * theme-core.js sets --text-main synchronously in <head>, but CSS cascade
     * completes just after first render — any color transition would cause
     * text and nav-card flash on every page navigation.
     */
    /*
     * ⚠️  SURGICAL FIX: Only background-color and color transitions blocked.
     * transition-property: none was too broad — would prevent future animations.
     * 0s duration on the two FOUC-sensitive properties is the minimal, safe fix.
     */
    transition: background-color 0s, color 0s;
}

/* Dark mode body */
[data-bs-theme="dark"] body {
    background-color: var(--app-bg, #1a1d23) !important;
    color: var(--text-main, var(--text-on-app, #dde1e8)) !important;
}


/* =========================================================================
   10. DASHBOARD BACKGROUND OVERRIDE
   =========================================================================
   ⚠️  ANTI-FLICKER rules:
     a) var(--dash-bg) — theme-core.js sets before first render (no FOUC).
     b) transition: none — prevents any animation when navigating to page.
   ========================================================================= */
body.page-dashboard {
    background-color: var(--dash-bg, #0f1115) !important;
    /* ⚠️  SURGICAL FIX: Only background-color transition blocked (0s = instant). */
    /* transition: none !important was too broad — see body {} comment above.    */
    transition: background-color 0s, color 0s;
}

/* Global: Main containers transparent — gradient shines through everywhere */
.main-content,
.main-content-inner,
.app-container {
    background: transparent !important;
}

/* Global: Topbar — Glassmorphism, colour from --panel-bg-rgb (Theme Engine) */
.top-navbar {
    background: rgba(var(--panel-bg-rgb, 18, 21, 26), 0.85) !important;
    backdrop-filter: blur(16px) !important;
    -webkit-backdrop-filter: blur(16px) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06) !important;
}

/* Global: Sidebar — colour from --panel-bg-rgb (Theme Engine)                */
/* ⚠️  GPU OPTIMISATION: backdrop-filter REMOVED from sidebar.                  */
/*     Opacity is ~0.88 — at this level blur has no visible effect but costs   */
/*     a full compositing pass on every repaint (scroll, widget update, etc.). */
/*     Topbar keeps its blur (opacity 0.85 = visible frosted effect worth GPU).*/
.sidebar {
    background: rgba(var(--panel-bg-rgb, 18, 21, 26), 0.88) !important;
    border-right: 1px solid rgba(255, 255, 255, 0.05) !important;
    box-shadow:
        4px 0 20px rgba(0, 0, 0, 0.35),
        inset -1px 0 0 rgba(255, 255, 255, 0.05) !important;
}


/* =========================================================================
   11. CARD & DROPDOWN STYLES
   =========================================================================
   NOTE: .card and .card:hover rules live in root_variables.css (Section 5).
   Removing duplicates here to avoid specificity conflicts.
   ========================================================================= */

.dropdown-menu {
    background-color: var(--card-bg);
    border-color: var(--border-color);
}
.dropdown-menu .dropdown-item { color: var(--text-dark); }
.dropdown-menu .dropdown-item:hover { background-color: var(--hover-bg); }

/* Topbar dropdown — follows Theme Engine (card-bg token) */
.top-navbar .dropdown-menu {
    background: var(--card-bg, #1e2229) !important;
    backdrop-filter: blur(24px) !important;
    -webkit-backdrop-filter: blur(24px) !important;
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1)) !important;
    border-radius: 12px !important;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.30) !important;
}
.top-navbar .dropdown-menu .dropdown-item {
    color: var(--text-main, #dde1e8) !important;
    border-radius: 6px;
}
.top-navbar .dropdown-menu .dropdown-item:hover {
    background: var(--hover-bg, rgba(255, 255, 255, 0.06)) !important;
    color: var(--text-main, #ffffff) !important;
}
.top-navbar .dropdown-menu .dropdown-header { color: var(--text-muted, #8892a4) !important; }
.top-navbar .dropdown-menu .dropdown-divider {
    border-color: var(--border-color, rgba(255, 255, 255, 0.08)) !important;
}


/* =========================================================================
   12. GLOBAL SCROLLBARS — dark Glassmorphism style
   ========================================================================= */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.28); }
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}


/* =========================================================================
   13. FLASH TOAST NOTIFICATIONS
   =========================================================================
   MA-PRO Flash Toasts — Phase 3, Enterprise Polish
   - Position: fixed, top-center, above content (z-index: 2055)
   - Style: glass card with coloured left stripe (brand/semantic)
   - Auto-dismiss: 2s (controlled by JS in layout.html)
   ========================================================================= */
.mapro-flash-container {
    position: fixed;
    top: calc(var(--topbar-height, 64px) + 0.75rem);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2055;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    width: 92%;
    max-width: 460px;
    pointer-events: none;
}
.mapro-flash-toast {
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 0;
    background: rgba(var(--card-bg-rgb, 255, 255, 255), 0.97);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--border-color, rgba(0, 0, 0, 0.08));
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.11), 0 1px 4px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    animation: mapro-flash-in 0.22s cubic-bezier(0.22, 1, 0.36, 1);
    transition: opacity 0.35s ease, transform 0.35s ease;
}
.mapro-flash-toast.hiding {
    opacity: 0;
    transform: translateY(-10px) scale(0.97);
}
@keyframes mapro-flash-in {
    from { opacity: 0; transform: translateY(-14px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0)     scale(1);    }
}
.mapro-flash-bar {
    width: 4px;
    min-width: 4px;
    align-self: stretch;
    flex-shrink: 0;
}
.mapro-flash-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
    margin: 0 0.6rem 0 0.85rem;
}
.mapro-flash-text {
    flex: 1;
    padding: 0.78rem 0;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-main, #0f172a);
    line-height: 1.45;
}
.mapro-flash-close {
    background: none;
    border: none;
    color: var(--text-muted, #64748b);
    cursor: pointer;
    padding: 0.3rem 0.45rem;
    font-size: 1rem;
    line-height: 1;
    flex-shrink: 0;
    border-radius: 6px;
    margin: 0 0.4rem;
    transition: background 0.15s, color 0.15s;
}
.mapro-flash-close:hover {
    background: var(--hover-bg, rgba(0, 0, 0, 0.05));
    color: var(--text-main, #0f172a);
}


/* =========================================================================
   14a. MOBILE TOPBAR — Prevent horizontal overflow on small screens
   =========================================================================
   Problem: .top-navbar has padding: 0 2rem (desktop). On phones this
   combined with vault-navbar-indicator button causes right-side overflow.
   Fix: tighter padding + overflow:hidden on xs/sm breakpoints.
   ========================================================================= */
@media (max-width: 767.98px) {
    .top-navbar {
        padding: 0 0.5rem !important;
        /* ⚠️  overflow: hidden ZÁMĚRNĚ VYNECHÁNO — způsobovalo ořez Bootstrap
           dropdown menu (absolutní pozice), které tak nebylo klikatelné.
           Snížený padding postačuje pro zamezení horizontálního overflow. */
    }
    /* Vault indicator: remove extra margin, ensure icon-only fits */
    #vault-navbar-indicator {
        margin-right: 0 !important;
    }
    #vault-navbar-indicator .btn {
        padding-left: 0.35rem !important;
        padding-right: 0.35rem !important;
    }
    /* Company name in topbar: hide on very small screens to save space */
    .top-navbar .d-sm-flex.align-items-center.ms-3 {
        display: none !important;
    }
}

/* =========================================================================
   14. MOBILE SIDEBAR
   ========================================================================= */
@media (max-width: 991.98px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100%;
        z-index: 1045;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
        border-right: none !important;
    }
    .sidebar.active { transform: translateX(0); }
    body.sidebar-open::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(2px);
        z-index: 1040;
        display: block;
    }
}

@media (min-width: 992px) {
    .sidebar {
        flex-basis: var(--sidebar-width);
        flex-shrink: 0;
        position: sticky;
        top: var(--topbar-height);
        height: calc(100vh - var(--topbar-height));
        transform: none;
        z-index: 1020;
    }
}


/* =========================================================================
   15. CONSENT BANNER
   ========================================================================= */
.consent-banner {
    position: fixed;
    bottom: -100%;
    left: 0;
    width: 100%;
    background-color: var(--card-bg);
    color: var(--text-dark);
    border-top: 1px solid var(--brand-primary);
    padding: 1.5rem;
    z-index: 1060;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.3);
    transition: bottom 0.6s cubic-bezier(0.23, 1, 0.32, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
}
.consent-banner.show { bottom: 0; }
.consent-banner-text p { margin: 0; font-size: 0.95rem; }
.consent-banner-text a { font-weight: 600; text-decoration: underline; }
@media (min-width: 768px) {
    .consent-banner {
        flex-direction: row;
        justify-content: center;
        text-align: left;
        padding: 1rem 2rem;
    }
    .consent-banner-text { max-width: 800px; }
    #consent-accept { white-space: nowrap; min-width: 120px; }
}


/* =========================================================================
   16. OFFCANVAS & MISC
   ========================================================================= */
#fileViewerOffcanvas .offcanvas-header { background-color: #1e293b; color: #fff; }
#fileViewerOffcanvas .offcanvas-body { background-color: #0f172a; }
#fileViewerOffcanvas .btn-close { filter: invert(1); }
.top-navbar.impersonation-mode {
    background-color: #fffbeb !important;
    border-bottom: 2px solid #fbbf24 !important;
}


/* =========================================================================
   18. SMOOTH-LOAD — Universal flicker-free content swap (smooth-load.js)
   =========================================================================
   Used by smoothLoadContent() and smoothNavigate() to overlay old content
   during fetch, preventing layout collapse and white flashes.

   Design rules:
   - .sl-overlay     — absolutely positioned glass pane over old content
   - .sl-spinner-wrap — centres the spinner in the overlay
   - .sl-fade-in     — applied to container after innerHTML swap (brief)
   - pointer-events: all on overlay blocks clicks on underlying dimmed content
   ========================================================================= */

/*
 * Overlay: covers the entire container while a fetch is in progress.
 * ⚠️  pointer-events: all — prevents user from clicking dimmed content below.
 * ⚠️  NO backdrop-filter blur — blur causes visible "fog" effect during navigation.
 *     Subtle opacity-only overlay is faster to render and looks more instantaneous.
 */
.sl-overlay {
    position: absolute;
    inset: 0;
    z-index: 20;
    /* Very light overlay — just enough to signal loading, no fog effect */
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-std, 0.5rem);
    pointer-events: all;
}

/* Dark mode: same transparent approach */
[data-bs-theme="dark"] .sl-overlay {
    background: transparent;
}

/* Spinner centred inside the overlay */
.sl-spinner-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
}

.sl-spinner {
    width: 2.5rem;
    height: 2.5rem;
}

/*
 * Fade-in: applied to the container immediately after new HTML is injected.
 * Removed by JS after 300ms so it doesn't interfere with further transitions.
 * ⚠️  SHORT duration (0.2s) — any longer and the content feels "sluggish".
 */
.sl-fade-in {
    animation: sl-fade-in 0.2s ease forwards;
}

@keyframes sl-fade-in {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/*
 * Smooth-Navigate page-level transition:
 * Applied to .main-content-inner during a smoothNavigate() swap.
 * No separate class needed — sl-fade-in is reused on the container element.
 */


/* =========================================================================
   17. DARK MODE — GRANULAR COMPONENT FIXES
   =========================================================================
   Revision: hardcoded colours → var(--text-main) + var(--text-muted)
   theme-core.js sets both tokens synchronously → auto-contrast works.
   ========================================================================= */

/* Body text colour */
[data-bs-theme="dark"] body {
    color: var(--text-main, #dde1e8) !important;
}

/* Form inputs */
[data-bs-theme="dark"] input,
[data-bs-theme="dark"] textarea,
[data-bs-theme="dark"] select,
[data-bs-theme="dark"] .form-control,
[data-bs-theme="dark"] .form-select {
    background-color: #2c2c2c !important;
    border-color: #444 !important;
    color: var(--text-main, #dde1e8) !important;
}
[data-bs-theme="dark"] .form-control::placeholder {
    color: var(--text-muted, #8892a4) !important;
}
[data-bs-theme="dark"] .input-group-text {
    background-color: #1f1f1f !important;
    border-color: #444 !important;
    color: var(--text-main, #dde1e8) !important;
}

/* Tables */
[data-bs-theme="dark"] .table {
    color: var(--text-main, #dde1e8) !important;
    --bs-table-color: #dde1e8;
    --bs-table-bg: transparent;
    --bs-table-striped-bg: rgba(255, 255, 255, 0.05);
    --bs-table-hover-bg: rgba(255, 255, 255, 0.08);
}

/* Cards & Modals */
[data-bs-theme="dark"] .card,
[data-bs-theme="dark"] .modal-content {
    background-color: var(--card-bg, #22262e) !important;
    border-color: var(--border-color, rgba(255, 255, 255, 0.08)) !important;
    color: var(--text-main, #dde1e8) !important;
}

/* General dropdowns (not topbar) */
[data-bs-theme="dark"] .dropdown-menu:not(.top-navbar .dropdown-menu) {
    background-color: var(--card-bg, #22262e) !important;
    border-color: var(--border-color, rgba(255, 255, 255, 0.08)) !important;
    color: var(--text-main, #dde1e8) !important;
}

/* Links */
[data-bs-theme="dark"] a {
    color: var(--brand-primary, #60a5fa);
}
[data-bs-theme="dark"] a:hover {
    color: var(--brand-primary-hover, #93c5fd);
}
[data-bs-theme="dark"] .btn { color: inherit; }
[data-bs-theme="dark"] .btn-primary,
[data-bs-theme="dark"] .btn-danger,
[data-bs-theme="dark"] .btn-success { color: #fff !important; }

/* Bootstrap utility overrides */
[data-bs-theme="dark"] .text-dark {
    color: var(--text-main, #dde1e8) !important;
}
[data-bs-theme="dark"] .text-muted,
[data-bs-theme="dark"] .text-secondary {
    color: var(--text-muted, #8892a4) !important;
}


/* =========================================================================
   19. ACCORDION — Neutrální clean design (přepsání Bootstrap #0d6efd / #e7f1ff)
   =========================================================================
   Globální přepsání Bootstrap výchozích hodnot pro všechny accordion prvky
   v aplikaci. Lokální styly na konkrétní stránce mají vyšší specificitu
   a mohou toto přepsat, pokud je to záměrné.
   ========================================================================= */

/* Focus ring: bez Bootstrap modré záře (#86b7fe) */
.accordion-button:focus {
    box-shadow: none !important;
    border-color: var(--border-color) !important;
    outline: none;
}

/* Aktivní/rozbalený panel: transparentní pozadí, tučný text, jemná linka */
.accordion-button:not(.collapsed) {
    color: var(--text-main);
    background-color: transparent;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    box-shadow: none !important;
    border-color: var(--border-color) !important;
}

/* Chevron šipka — mask-image přístup (barva přes background-color → CSS var) */
.accordion-button::after,
.accordion-button:not(.collapsed)::after {
    background-image: none !important;
    -webkit-mask-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    mask-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-size: 1.25rem;
    mask-size: 1.25rem;
    -webkit-mask-position: center;
    mask-position: center;
    background-color: var(--text-muted); /* Neaktivní šipka: šedá */
}

/* Aktivní šipka: brand-primary */
.accordion-button:not(.collapsed)::after {
    background-color: var(--brand-primary);
}
