/* ============================================================
   Layout — Sidebar, Topbar, Content, Page-Wrapper
   ============================================================ */

/* Ersetzt die bestehenden Domiex-Layout-Styles Schritt-für-Schritt.
   Bestehende Markup-Klassen werden beibehalten, nur neu gestylt. */

/* Body als flex-column-Container damit design-mode-bar + page-wrapper sauber
   gestapelt werden ohne Hoehen-Konflikt. body:height:100vh + overflow:hidden,
   page-wrapper nimmt via flex:1 die verbleibende Hoehe (nach design-mode-bar). */
html, body {
    height: 100vh;
    margin: 0;
    overflow: hidden;
}
body {
    display: flex;
    flex-direction: column;
}

.page-wrapper {
    display: flex;
    flex: 1 1 auto;            /* nimmt verbleibende Hoehe nach design-mode-bar */
    min-height: 0;             /* damit overflow-y im Kind funktioniert */
    overflow: hidden;
    background: var(--color-surface);
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: var(--layout-sidebar-width);
    min-width: var(--layout-sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: var(--z-sidebar);
    background: var(--color-surface-raised);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    transition: width var(--duration-base) var(--ease-out);
    box-shadow: none;
}

.sidebar.sidebar-collapsed {
    width: var(--layout-sidebar-collapsed);
    min-width: var(--layout-sidebar-collapsed);
}

.sidebar.sidebar-design-mode {
    top: 40px;
    height: calc(100vh - 40px);
}

.sidebar-header {
    height: var(--layout-topbar-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-4);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text-primary);
    font-weight: var(--weight-semibold);
    font-size: var(--text-md);
    letter-spacing: var(--tracking-tight);
}
.sidebar-logo .logo-icon {
    width: 28px; height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--color-brand-primary-tint);
    color: var(--color-brand-primary);
    flex-shrink: 0;
}
.sidebar-logo .logo-icon svg { width: 18px; height: 18px; }
.sidebar-logo .logo-icon img { width: 22px; height: 22px; object-fit: contain; }
.sidebar.sidebar-collapsed .logo-text { display: none; }

.btn-sidebar-toggle {
    width: 32px; height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}
.btn-sidebar-toggle:hover {
    background: var(--color-surface-hover);
    color: var(--color-text-primary);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-3) var(--space-2);
}

.sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: 2px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-menu-title {
    padding: var(--space-4) var(--space-3) var(--space-2);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-text-muted);
}
.sidebar.sidebar-collapsed .sidebar-menu-title {
    padding: var(--space-3) 0;
    text-align: center;
    font-size: 0.625rem;
}

.sidebar-menu-item { list-style: none; }

.sidebar-menu-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: var(--text-base);
    font-weight: var(--weight-medium);
    line-height: var(--leading-tight);
    transition:
        background var(--duration-fast) var(--ease-out),
        color var(--duration-fast) var(--ease-out);
    white-space: nowrap;
    min-height: 36px;
}
.sidebar-menu-link:hover {
    background: var(--color-surface-hover);
    color: var(--color-text-primary);
}
.sidebar-menu-link.active {
    background: var(--color-brand-primary-tint);
    color: var(--color-brand-primary);
    font-weight: var(--weight-semibold);
}
.sidebar-menu-link:focus-visible {
    outline: none;
    box-shadow: var(--shadow-focus);
}

.sidebar-menu-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: currentColor;
}
.sidebar-menu-icon svg { width: 18px; height: 18px; stroke-width: 1.5; }

.sidebar.sidebar-collapsed .sidebar-menu-link {
    justify-content: center;
    padding: var(--space-2);
}
.sidebar.sidebar-collapsed .sidebar-menu-text { display: none; }

.submenu-arrow {
    margin-left: auto;
    color: var(--color-text-muted);
    transition: transform var(--duration-fast) var(--ease-out);
}
.submenu-arrow svg { width: 14px; height: 14px; }
.sidebar-menu-item.open > .sidebar-menu-link .submenu-arrow { transform: rotate(90deg); }

.sidebar-submenu {
    margin: 2px 0 2px 0;
    padding-left: var(--space-7);
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.sidebar-submenu .sidebar-menu-link {
    font-size: var(--text-sm);
    font-weight: var(--weight-regular);
    min-height: 32px;
    padding: var(--space-1) var(--space-3);
}
.sidebar-submenu .sidebar-menu-link.active {
    background: var(--color-brand-primary-tint);
    color: var(--color-brand-primary);
    font-weight: var(--weight-medium);
}

/* User-block am Sidebar-Fuß */
.sidebar-footer {
    border-top: 1px solid var(--color-border);
    padding: var(--space-3);
    flex-shrink: 0;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    flex: 1;
    min-width: 0;
    min-height: 0;             /* damit page-content overflow:auto greift */
    margin-left: var(--layout-sidebar-width);
    display: flex;
    flex-direction: column;
    height: 100%;              /* relativ zur page-wrapper-Hoehe (statt 100vh fix) */
    overflow: hidden;
    background: var(--color-surface);
    transition: margin-left var(--duration-base) var(--ease-out);
}
.sidebar.sidebar-collapsed ~ .main-content {
    margin-left: var(--layout-sidebar-collapsed);
}

/* ===== TOPBAR ===== */
.topbar {
    height: var(--layout-topbar-height);
    background: var(--color-surface-raised);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: 0 var(--space-5);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: none;
}

.topbar-left {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.topbar-search {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--color-surface-sunken);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0 var(--space-3);
    height: 36px;
    width: 100%;
    max-width: 360px;
    transition: border-color var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out);
}
.topbar-search:focus-within {
    border-color: var(--color-brand-primary);
    box-shadow: var(--shadow-focus);
    background: var(--color-surface-raised);
}
.topbar-search svg { width: 16px; height: 16px; stroke-width: 1.5; color: var(--color-text-muted); flex-shrink: 0; }
.topbar-search input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-size: var(--text-sm);
    color: var(--color-text-primary);
    min-width: 0;
}
.topbar-search input::placeholder { color: var(--color-text-muted); }

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    flex-shrink: 0;
}

.topbar-icon-btn {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
    position: relative;
}
.topbar-icon-btn:hover {
    background: var(--color-surface-hover);
    color: var(--color-text-primary);
}
.topbar-icon-btn svg { width: 18px; height: 18px; stroke-width: 1.5; }
.topbar-icon-btn .badge-dot {
    position: absolute;
    top: 8px; right: 8px;
    width: 8px; height: 8px;
    background: var(--color-danger);
    border-radius: var(--radius-full);
    border: 2px solid var(--color-surface-raised);
}

.topbar-divider {
    width: 1px;
    height: 24px;
    background: var(--color-border);
    margin: 0 var(--space-2);
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
    transition: background var(--duration-fast) var(--ease-out);
}
.topbar-user:hover { background: var(--color-surface-hover); }
.topbar-user .avatar {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-full);
    background: var(--color-brand-primary-tint);
    color: var(--color-brand-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--weight-semibold);
    font-size: var(--text-xs);
}

/* ===== PAGE CONTENT ===== */
.page-content {
    flex: 1 1 auto;            /* nimmt verfuegbaren Platz, schrumpft NICHT footer */
    min-height: 0;             /* damit overflow-y im flex-Container greift */
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-5) var(--space-4);
    width: 100%;
    max-width: 100%;
    margin: 0;
}
.page-content > .container-fluid,
.page-content > .container {
    padding-left: 0 !important;
    padding-right: 0 !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    max-width: var(--layout-content-max);
}
.page-content > :first-child { margin-top: 0; }

/* ===== BREADCRUMBS ===== */
.crumbs {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    list-style: none;
    padding: 0;
    margin: 0;
}
.crumbs li { display: inline-flex; align-items: center; }
.crumbs li + li::before {
    content: "";
    display: inline-block;
    width: 14px; height: 14px;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="none" viewBox="0 0 24 24" stroke="%236B7487" stroke-width="1.5"><path stroke-linecap="round" stroke-linejoin="round" d="M9 5l7 7-7 7"/></svg>') center/contain no-repeat;
    margin: 0 var(--space-1);
    opacity: 0.6;
}
.crumbs a { color: var(--color-text-secondary); }
.crumbs a:hover { color: var(--color-text-primary); }
.crumbs li[aria-current="page"] { color: var(--color-text-primary); font-weight: var(--weight-medium); }

/* ===== PAGE HEADER ===== */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}
.page-header h1 {
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
    letter-spacing: var(--tracking-tight);
    color: var(--color-text-primary);
    margin: 0;
}
.page-header .page-subtitle {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-1);
}
.page-header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

/* ===== FOOTER ===== */
.app-footer {
    flex-shrink: 0;            /* Footer NIE schrumpfen / verschwinden lassen */
    flex-grow: 0;
    background: var(--color-surface-raised);
    border-top: 1px solid var(--color-border);
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-2);
}

/* ===== DESIGN MODE BAR ===== */
.design-mode-bar {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    height: 40px;
    background: var(--color-neutral-900);
    color: var(--color-neutral-100);
    display: flex;
    align-items: center;
    padding: 0 var(--space-5);
    gap: var(--space-6);
    font-size: var(--text-sm);
}
.design-mode-bar-left { display: flex; align-items: center; gap: var(--space-3); }
.design-mode-title { font-weight: var(--weight-semibold); color: var(--color-neutral-100); display: inline-flex; align-items: center; gap: var(--space-2); }
.design-mode-nav { display: flex; align-items: center; gap: var(--space-1); flex: 1; }
.design-mode-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-md);
    color: var(--color-neutral-300);
    font-size: var(--text-sm);
    transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}
.design-mode-link:hover {
    background: var(--color-neutral-800);
    color: var(--color-neutral-100);
}
.design-mode-link.active {
    background: var(--color-neutral-700);
    color: #fff;
}
.design-mode-bar-right { margin-left: auto; }

/* ===== Responsive — < 1024px: Mobile / kleine Tablets ===== */
@media (max-width: 1023.98px) {
    /* Sidebar wird Off-Canvas-Drawer */
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--duration-base) var(--ease-out);
        z-index: var(--z-modal, 1060);
        box-shadow: none;
    }
    .sidebar.sidebar-mobile-open {
        transform: translateX(0);
        box-shadow: 4px 0 20px rgba(10, 15, 28, 0.18);
    }

    /* Main-Content nimmt volle Breite */
    .main-content {
        margin-left: 0 !important;
        width: 100%;
        min-width: 0;
    }

    /* Page-Content: kleineres Padding, overflow-x verhindern */
    .page-content {
        padding: var(--space-4) var(--space-3);
        overflow-x: hidden;
    }
    .page-wrapper {
        overflow-x: hidden;
    }

    /* Sidebar-Backdrop wenn mobile offen */
    .sidebar-backdrop {
        display: none;
    }
    .sidebar-backdrop.show {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(10, 15, 28, 0.45);
        z-index: calc(var(--z-modal, 1060) - 1);
        animation: sidebar-backdrop-fade 180ms var(--ease-out) both;
    }
    @keyframes sidebar-backdrop-fade { from { opacity: 0; } to { opacity: 1; } }

    /* Topbar: Search + Lang-Switch kompakt */
    .topbar {
        padding: 0 var(--space-3);
    }
    .topbar-search {
        max-width: none;
    }
    .topbar-search input {
        font-size: 13px;
    }
    .topbar-toggle {
        display: inline-flex !important;
    }

    /* Design-Mode-Bar kompakt */
    .design-mode-bar {
        padding: var(--space-2) var(--space-3);
        overflow-x: auto;
        gap: var(--space-2);
    }
    .design-mode-bar .design-mode-title {
        font-size: 12.5px;
    }
    .design-mode-bar-right .btn {
        padding: 4px 8px;
        font-size: 11.5px;
    }

    /* Toast-Host: volle Breite minus Padding */
    .toast-host {
        left: 12px;
        right: 12px;
        width: auto;
    }
}

/* ===== Responsive — < 640px: Phones ===== */
@media (max-width: 639.98px) {
    /* Topbar-Search komplett einklappen falls Platz knapp */
    .topbar-search {
        display: none;
    }
    .topbar-right {
        gap: 2px;
    }
    .topbar-right .btn-ghost {
        padding: 6px;
    }
    /* Lang-Switch Label ausblenden */
    .topbar-right .d-md-inline {
        display: none !important;
    }
    /* Kleinere Card-Paddings */
    .card, .card-body {
        padding: var(--space-3);
    }
    /* Modals: Full-Screen-artig */
    .modal-dialog {
        margin: 8px;
        max-width: calc(100vw - 16px);
    }
    .modal-content {
        max-height: calc(100vh - 16px);
    }
    /* Tables: horizontales Scrollen bleibt erhalten, aber kleinere Schrift */
    .table {
        font-size: 12.5px;
    }
    .table th, .table td {
        padding: 8px 10px;
    }
}

/* ===== Responsive — Tablets zwischen 640px und 1023px ===== */
@media (min-width: 640px) and (max-width: 1023.98px) {
    .topbar-search {
        max-width: 320px;
    }
}