/* ============================================================================
   Gemeinsames Filter-Layout (Bibliothek-Stil) für Schatzinsel & Arena
   Angeglichen an .bibliothek-sidebar / .bibliothek-content in bibliothek.css
   Filter: immer Schublade wie Mobil – öffnen mit „🔍 Filter“, schließen mit „✕“
   ============================================================================ */

body.schatzinsel-page {
    --filter-drawer-top: calc(56px + max(12px, env(safe-area-inset-top, 0px)) + 52px);
}

body.has-kikirika-chrome.arena-page {
    --filter-drawer-top: calc(56px + max(12px, env(safe-area-inset-top, 0px)) + 18px + 44px);
}

.filter-layout-main {
    display: flex;
    width: 100%;
    max-width: none;
    margin: 0;
    align-items: flex-start;
    align-self: stretch;
    gap: 0;
    min-height: 40vh;
    box-sizing: border-box;
}

.filter-layout-sidebar {
    display: none;
    position: fixed;
    left: 0;
    top: var(--filter-drawer-top);
    z-index: 100;
    width: min(250px, 92vw);
    max-width: min(250px, 92vw);
    height: calc(100vh - var(--filter-drawer-top));
    max-height: calc(100vh - var(--filter-drawer-top));
    box-sizing: border-box;
    /* Hell: wie .bibliothek-sidebar */
    --filter-sidebar-bg: #ffffff;
    --filter-sidebar-border: #d2d2d7;
    --filter-text: #1d1d1f;
    --filter-text-muted: #86868b;
    --filter-input-bg: #f5f5f7;
    --filter-input-border: #d2d2d7;
    --filter-accent: #667eea;

    background: var(--filter-sidebar-bg);
    border: none;
    border-bottom: 1px solid var(--filter-sidebar-border);
    border-radius: 0;
    padding: 20px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
    overflow-y: auto;
    text-align: left;
    flex-shrink: 0;
    scrollbar-width: thin;
    scrollbar-color: rgba(102, 126, 234, 0.5) rgba(0, 0, 0, 0.05);
}

.filter-layout-sidebar.open {
    display: block;
}

.filter-layout-sidebar::-webkit-scrollbar {
    width: 12px;
}

.filter-layout-sidebar::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 6px;
}

.filter-layout-sidebar::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.5);
    border-radius: 6px;
}

.filter-layout-sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.7);
}

.filter-layout-sidebar .sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--filter-sidebar-border);
}

.filter-layout-sidebar .sidebar-header h2 {
    font-size: 1.1rem;
    font-weight: 800;
    margin: 0;
    color: var(--filter-text);
}

.filter-layout-sidebar .sidebar-close {
    display: inline-block;
    background: transparent;
    border: none;
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    padding: 4px 8px;
    color: var(--filter-text-muted);
}

.filter-layout-content {
    flex: 1;
    min-width: 0;
    padding: 20px 40px;
    box-sizing: border-box;
}

.filter-layout-toolbar {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    margin-bottom: 16px;
    flex-wrap: nowrap;
    gap: 6px;
}

.filter-layout-toolbar .filter-toggle {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: var(--filter-sidebar-bg, #fff);
    color: var(--filter-text, #1d1d1f);
    border: 1px solid var(--filter-input-border, #d2d2d7);
    border-radius: 8px;
    font-family: inherit;
    font-weight: 700;
    cursor: pointer;
    font-size: 14px;
}

.filter-layout-toolbar .toolbar-info {
    margin-left: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--filter-text-muted, #86868b);
    white-space: nowrap;
    text-align: left;
    line-height: 1.35;
}

/* Schatzinsel / Arena Dark: Zähler unter dem Filter-Button lesbar */
body.si-dark-mode .filter-layout-toolbar .toolbar-info {
    color: rgba(255, 255, 255, 0.72);
}

body.arena-dark-mode .filter-layout-toolbar .toolbar-info {
    color: var(--filter-text-muted, #a1a1a6);
}

body.si-dark-mode .filter-layout-toolbar .filter-toggle {
    background: var(--si-panel-bg);
    color: #f5f5f7;
    border-color: var(--si-panel-border, rgba(255, 255, 255, 0.12));
}

body.arena-dark-mode .filter-layout-toolbar .filter-toggle {
    background: var(--arena-panel-bg);
    color: #f5f5f7;
    border-color: rgba(255, 255, 255, 0.14);
}

.filter-layout-sidebar .filter-loading {
    font-size: 13px;
    color: var(--filter-text-muted, #86868b);
    padding: 6px 0;
}

/* Filter-Komponenten (wie bibliothek.css .filter-section / .filter-label / …) */
.filter-layout-sidebar .filter-section {
    margin-bottom: 24px;
}

.filter-layout-sidebar .filter-label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--filter-text-muted, #86868b);
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.filter-layout-sidebar .filter-input,
.filter-layout-sidebar .filter-select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--filter-input-border, #d2d2d7);
    border-radius: 8px;
    background: var(--filter-input-bg, #f5f5f7);
    color: var(--filter-text, #1d1d1f);
    font-family: inherit;
    font-size: 14px;
    box-sizing: border-box;
}

.filter-layout-sidebar .filter-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    cursor: pointer;
    font-size: 14px;
    color: var(--filter-text, #1d1d1f);
}

.filter-layout-sidebar .filter-checkbox input[type="radio"],
.filter-layout-sidebar .filter-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--filter-accent, #667eea);
    flex-shrink: 0;
}

.filter-layout-sidebar .filter-reset {
    width: 100%;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--filter-input-border, #d2d2d7);
    border-radius: 8px;
    color: var(--filter-text, #1d1d1f);
    cursor: pointer;
    font-weight: 600;
    font-family: inherit;
    font-size: 14px;
    margin-top: 10px;
    margin-bottom: 24px;
}

.filter-layout-sidebar .filter-reset:hover {
    background: var(--filter-input-bg, #f5f5f7);
    border-color: var(--filter-text-muted, #86868b);
}

/* Hell: Filterfläche wie .hero (Info-Karte) – Farben aus Schatzinsel-/Arena-HTML */
body.schatzinsel-page:not(.si-dark-mode) .filter-layout-sidebar {
    --filter-sidebar-bg: #ffffff;
    --filter-sidebar-border: rgba(100, 170, 195, 0.5);
    --filter-text: #1a2e2e;
    --filter-text-muted: #4a6b6b;
    --filter-input-bg: rgba(223, 246, 252, 0.55);
    --filter-input-border: rgba(100, 170, 195, 0.45);
    --filter-accent: #0d4f4f;
    box-shadow: 0 4px 20px rgba(20, 100, 130, 0.1);
}

body.schatzinsel-page:not(.si-dark-mode) .filter-layout-toolbar .filter-toggle {
    background: #ffffff;
    color: #1a2e2e;
    border-color: rgba(100, 170, 195, 0.5);
    box-shadow: 0 2px 10px rgba(20, 100, 130, 0.06);
}

body.schatzinsel-page:not(.si-dark-mode) .filter-layout-toolbar .toolbar-info {
    color: #4a6b6b;
}

body.has-kikirika-chrome.arena-page:not(.arena-dark-mode) .filter-layout-sidebar {
    --filter-sidebar-bg: #ffffff;
    --filter-sidebar-border: rgba(180, 155, 120, 0.45);
    --filter-text: #2a2218;
    --filter-text-muted: #5c5044;
    --filter-input-bg: rgba(250, 246, 238, 0.92);
    --filter-input-border: rgba(180, 155, 120, 0.42);
    --filter-accent: #667eea;
    box-shadow: 0 4px 20px rgba(90, 70, 45, 0.08);
}

body.has-kikirika-chrome.arena-page:not(.arena-dark-mode) .filter-layout-toolbar .filter-toggle {
    background: #ffffff;
    color: #2a2218;
    border-color: rgba(180, 155, 120, 0.45);
    box-shadow: 0 2px 10px rgba(90, 70, 45, 0.06);
}

body.has-kikirika-chrome.arena-page:not(.arena-dark-mode) .filter-layout-toolbar .toolbar-info {
    color: #5c5044;
}

/* Dunkel: gleicher Panel-Look wie Bibliothek Dark (--si-panel-* in schatzinsel.html = --bib-panel-*) */
body.si-dark-mode .filter-layout-sidebar {
    --filter-sidebar-bg: var(--si-panel-bg);
    --filter-sidebar-border: var(--si-panel-border, rgba(255, 255, 255, 0.12));
    --filter-text: #eee;
    --filter-text-muted: rgba(255, 255, 255, 0.7);
    --filter-input-bg: var(--si-filter-field-bg, rgba(0, 0, 0, 0.28));
    --filter-input-border: var(--si-panel-border, rgba(255, 255, 255, 0.12));
    --filter-accent: #e8c97a;
    box-shadow: var(--si-panel-shadow, 0 8px 28px rgba(0, 0, 0, 0.42));
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    scrollbar-color: rgba(102, 126, 234, 0.55) rgba(0, 0, 0, 0.25);
}

body.si-dark-mode .filter-layout-sidebar::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.25);
}

body.si-dark-mode .filter-layout-sidebar::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.55);
}

body.si-dark-mode .filter-layout-sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.75);
}

body.si-dark-mode .filter-layout-sidebar .sidebar-header {
    border-bottom-color: rgba(255, 255, 255, 0.12);
}

body.si-dark-mode .filter-layout-sidebar .filter-reset:hover {
    background: rgba(255, 255, 255, 0.08);
}

/* Arena: Sand-/Dünen-Verlauf wie früher die Arena-Seite (--arena-panel-bg in arena.html) */
body.arena-dark-mode .filter-layout-sidebar {
    --filter-sidebar-bg: var(--arena-panel-bg);
    --filter-sidebar-border: rgba(255, 255, 255, 0.14);
    --filter-text: #f5f5f7;
    --filter-text-muted: #a1a1a6;
    --filter-input-bg: rgba(0, 0, 0, 0.22);
    --filter-input-border: rgba(255, 255, 255, 0.14);
    --filter-accent: #667eea;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.5);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    scrollbar-color: rgba(102, 126, 234, 0.55) rgba(0, 0, 0, 0.25);
}

body.arena-dark-mode .filter-layout-sidebar::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.25);
}

body.arena-dark-mode .filter-layout-sidebar::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.55);
}

body.arena-dark-mode .filter-layout-sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.75);
}

body.arena-dark-mode .filter-layout-sidebar .sidebar-header {
    border-bottom-color: rgba(255, 255, 255, 0.12);
}

body.arena-dark-mode .filter-layout-sidebar .filter-reset:hover {
    background: rgba(255, 255, 255, 0.08);
}

/* Nicht mobil: Filterspalte reservieren, Toggle bündig mit Sidebar-„🔍 Filter“-Text, Karten zentriert & begrenzt */
@media (min-width: 769px) {
    .filter-layout-main {
        --filter-gutter: min(250px, 92vw);
        --filter-inner-pad: 20px; /* wie .filter-layout-sidebar padding */
        --filter-content-pad-left: 40px; /* wie .filter-layout-content linkes Padding */
        padding-left: var(--filter-gutter);
        box-sizing: border-box;
    }

    .filter-layout-toolbar {
        margin-left: calc(var(--filter-inner-pad) - var(--filter-gutter) - var(--filter-content-pad-left));
        width: calc(100% + var(--filter-gutter) + var(--filter-content-pad-left) - var(--filter-inner-pad));
        max-width: none;
        box-sizing: border-box;
    }

    .filter-layout-content .game-grid,
    .filter-layout-content #firmenGrid {
        max-width: min(1200px, 100%);
        margin-left: auto;
        margin-right: auto;
        width: 100%;
        box-sizing: border-box;
    }

    .filter-layout-sidebar {
        border-radius: 0 14px 14px 0;
        border-bottom: none;
        border-right: 1px solid var(--filter-sidebar-border);
    }
}

@media (max-width: 768px) {
    .filter-layout-sidebar {
        border-radius: 0;
        border-right: none;
    }

    .filter-layout-main {
        flex-direction: column;
        max-width: 100%;
        padding-left: 0;
    }

    .filter-layout-toolbar {
        margin-left: 0;
        width: 100%;
        max-width: none;
    }

    .filter-layout-content .game-grid,
    .filter-layout-content #firmenGrid {
        max-width: none;
        margin-left: 0;
        margin-right: 0;
        width: 100%;
    }

    body.schatzinsel-page {
        --filter-mobile-chrome-top: calc(56px + max(12px, env(safe-area-inset-top, 0px)) + 52px);
        --filter-drawer-top: var(--filter-mobile-chrome-top);
    }

    body.has-kikirika-chrome.arena-page {
        --filter-mobile-chrome-top: calc(56px + max(12px, env(safe-area-inset-top, 0px)) + 18px + 44px);
        --filter-drawer-top: var(--filter-mobile-chrome-top);
    }

    .filter-layout-content {
        padding: 16px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    body.schatzinsel-page {
        --filter-mobile-chrome-top: calc(56px + max(12px, env(safe-area-inset-top, 0px)) + 14px + 56px);
        --filter-drawer-top: var(--filter-mobile-chrome-top);
    }

    body.has-kikirika-chrome.arena-page {
        --filter-mobile-chrome-top: calc(56px + max(12px, env(safe-area-inset-top, 0px)) + 14px + 56px);
        --filter-drawer-top: var(--filter-mobile-chrome-top);
    }
}