/* =============================================================
   layout.css – Globales Seiten-Layout
   NWI-Portal
   Grid-System, Header-Struktur, Content-Bereich, Footer
   ============================================================= */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
}

/* ── Seitenstruktur ────────────────────────────────────────── */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    box-shadow: var(--shadow-sm);
}

.site-content {
    padding-top: var(--header-total-height);
    min-height: calc(100vh - var(--header-total-height) - var(--footer-height));
}

.site-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--footer-height);
    background-color: var(--color-footer-bg);
    color: var(--color-footer-text);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    z-index: var(--z-header);
}

/* ── Header-Zeilen ─────────────────────────────────────────── */

.site-header__row {
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    gap: var(--spacing-sm);
}

.site-header__row--top {
    height: var(--header-row1-height);
    background-color: var(--color-header-bg);
    color: var(--color-header-text);
    justify-content: space-between;
}

.site-header__row--buildings {
    height: var(--header-row2-height);
    background-color: var(--color-header-row2-bg);
    color: var(--color-header-text);
    overflow: hidden;
}

.site-header__row--levels {
    height: var(--header-row3-height);
    background-color: var(--color-header-row3-bg);
    color: var(--color-header-text);
    overflow: hidden;
}

.site-header__home-link {
    height: 28px;
    padding: 0 10px;
    border: 1px solid rgba(255, 255, 255, 0.42);
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #fff;
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    background: rgba(255, 255, 255, 0.08);
    transition: background var(--transition-fast), border-color var(--transition-fast);
    flex-shrink: 0;
}

.site-header__home-link:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.68);
}

.site-header__home-link .material-symbols-outlined {
    font-size: 17px;
    font-variation-settings: 'FILL' 1, 'wght' 500, 'GRAD' 0, 'opsz' 20;
}

/* Objekt-Selector */
.site-header__object-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex: 1;
    min-width: 0; /* Flex-Overflow verhindern */
}

.site-header__label {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    white-space: nowrap;
    flex-shrink: 0;
}

.site-header__select {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-sm);
    color: var(--color-header-text);
    padding: 4px var(--spacing-sm);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    cursor: pointer;
    min-width: 180px;
    max-width: 300px;
    height: 30px;
    /* Option-Styling für dunklen Hintergrund */
    -webkit-appearance: auto;
    appearance: auto;
}

.site-header__select option {
    background-color: var(--color-gray-800);
    color: #FFFFFF;
}

.site-header__select:focus {
    outline: 2px solid rgba(255, 255, 255, 0.6);
    outline-offset: 1px;
}

.site-header__select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* User-Info */
.site-header__user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-left: auto;
    flex-shrink: 0;
}

.site-header__username {
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

.site-header__role-badge {
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    padding: 2px var(--spacing-sm);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

.site-header__role-switch {
    display: flex;
    gap: var(--spacing-xs);
    border-left: 1px solid rgba(255,255,255,0.25);
    padding-left: var(--spacing-sm);
    margin-left: var(--spacing-xs);
}

.site-header__role-switch-btn--active {
    background-color: rgba(255,255,255,0.25);
    border-color: #FFFFFF;
}

.site-header__role-switch-btn--reset {
    border-color: rgba(255,255,255,0.5);
    color: rgba(255,255,255,0.8);
}

.workspace-drafts {
    position: relative;
    flex-shrink: 0;
}

.workspace-drafts__toggle {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.workspace-drafts__toggle .material-symbols-outlined {
    font-size: 16px;
    line-height: 1;
}

.workspace-drafts__panel {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    width: min(360px, calc(100vw - 24px));
    max-height: min(460px, calc(100vh - 86px));
    overflow: auto;
    background: #ffffff;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    color: var(--color-text);
    z-index: var(--z-dropdown);
}

.workspace-drafts__panel--open {
    display: block;
}

.workspace-drafts__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-100);
}

.workspace-drafts__head-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.workspace-drafts__help {
    width: 22px;
    height: 22px;
    border: 1px solid var(--color-gray-200);
    border-radius: 50%;
    background: #ffffff;
    color: var(--color-primary);
    cursor: pointer;
    font-weight: var(--font-weight-bold);
    line-height: 1;
}

.workspace-drafts__clear {
    border: 0;
    background: transparent;
    color: var(--color-danger);
    cursor: pointer;
    font-size: var(--font-size-sm);
}

.workspace-drafts__body {
    padding: var(--spacing-xs) 0;
}

.workspace-drafts__empty {
    padding: var(--spacing-md);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.workspace-drafts__item {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-xs) var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-100);
}

.workspace-drafts__item:last-child {
    border-bottom: 0;
}

.workspace-drafts__label {
    min-width: 0;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.workspace-drafts__meta {
    grid-column: 1 / -1;
    color: var(--color-text-muted);
    font-size: 11px;
}

.workspace-drafts__actions {
    display: flex;
    gap: 4px;
}

.workspace-drafts__action {
    border: 1px solid var(--color-gray-200);
    background: #ffffff;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 11px;
    padding: 2px 6px;
}

/* ── Tab-Leisten ───────────────────────────────────────────── */

.tab-bar {
    display: flex;
    align-items: center;
    gap: 2px;
    height: 100%;
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
}

.tab-bar::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.tab-bar__placeholder {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.45);
    padding: 0 var(--spacing-sm);
    font-style: italic;
    white-space: nowrap;
}

.tab-item {
    height: 100%;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.95);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast),
                background var(--transition-fast);
    white-space: nowrap;
    user-select: none;
    text-decoration: none;
    flex-shrink: 0;
    font-family: var(--font-family);
}

.tab-item:hover {
    color: var(--color-header-text);
    background: rgba(255, 255, 255, 0.1);
}

.tab-item--active {
    color: var(--color-header-text);
    border-bottom-color: #FFFFFF;
    font-weight: var(--font-weight-medium);
}

.tab-bar__add-btn {
    width: 26px;
    height: 26px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-header-text);
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
    margin-left: var(--spacing-xs);
    flex-shrink: 0;
}

.tab-bar__add-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

.tab-bar__add-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

/* ── Content-Wrapper ───────────────────────────────────────── */

.content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    padding-bottom: calc(var(--footer-height) + var(--spacing-lg));
}

/* Content-Grid: 2 Spalten optional */
.content-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.content-grid--2col {
    grid-template-columns: 1fr 1fr;
}

.content-grid--3col {
    grid-template-columns: repeat(3, 1fr);
}

.content-grid--4col {
    grid-template-columns: repeat(4, 1fr);
}

.content-grid--sidebar {
    grid-template-columns: 280px 1fr;
}

/* ── Footer / Statusleiste ─────────────────────────────────── */

.site-footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    width: 100%;
    gap: var(--spacing-md);
}

.site-footer__status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.site-footer__status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-success);
    flex-shrink: 0;
}

.site-footer__timeout {
    color: var(--color-warning);
    font-size: var(--font-size-sm);
}

/* ── Breadcrumb-Navigation ─────────────────────────────────── */

.breadcrumb-bar {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-lg) 0;
}

.breadcrumb-trail {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 2px;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: 1.5;
}

.breadcrumb-trail a {
    color: var(--color-primary);
    text-decoration: none;
}

.breadcrumb-trail a:hover {
    text-decoration: underline;
}

.breadcrumb-trail__sep {
    padding: 0 4px;
    color: var(--color-border);
    user-select: none;
}

.breadcrumb-trail__current {
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
}

@media (max-width: 768px) {
    .breadcrumb-bar {
        padding: var(--spacing-sm) var(--spacing-md) 0;
    }
}

/* ── Seiten-Aktionsleiste ──────────────────────────────────── */

.page-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.page-actions__title {
    font-size: var(--font-size-h1);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

.page-actions__buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ── Filter-Leiste ─────────────────────────────────────────── */

.filter-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.filter-bar__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    white-space: nowrap;
}

/* ── Burger-Menü ───────────────────────────────────────────── */

.burger-menu {
    position: relative;
    flex-shrink: 0;
}

.burger-panel {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 220px;
    background: #ffffff;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: var(--z-dropdown);
    overflow: hidden;
}

.burger-panel--open {
    display: block;
}

.burger-section {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-gray-100);
}

.burger-section:last-child {
    border-bottom: none;
}

.burger-section__title {
    font-size: 10px;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    padding: var(--spacing-xs) var(--spacing-md);
}

.burger-item {
    display: block;
    padding: 7px var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    text-decoration: none;
    transition: background var(--transition-fast), color var(--transition-fast);
    white-space: nowrap;
}

.burger-item:hover {
    background: var(--color-gray-50);
    color: var(--color-primary);
}

.burger-item--active {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    background: var(--color-primary-light, rgba(var(--color-primary-rgb, 59,130,246), 0.08));
}

/* ── Responsive Breakpoints ───────────────────────────────── */

/* Tablet (≤ 1024px) */
@media (max-width: 1024px) {
    .content-grid--3col,
    .content-grid--4col {
        grid-template-columns: 1fr 1fr;
    }

    .content-grid--sidebar {
        grid-template-columns: 240px 1fr;
    }

    .site-header__username {
        display: none; /* Platz sparen */
    }
}

/* Mobile (≤ 768px) */
@media (max-width: 768px) {
    .content-wrapper {
        padding: var(--spacing-md);
        padding-bottom: calc(var(--footer-height) + var(--spacing-md));
    }

    .content-grid--2col,
    .content-grid--3col,
    .content-grid--4col,
    .content-grid--sidebar {
        grid-template-columns: 1fr;
    }

    .page-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-header__role-switch {
        display: none; /* Zu wenig Platz */
    }

    .workspace-drafts__toggle span:last-child {
        display: none;
    }

    .site-header__object-selector {
        max-width: 160px;
    }

    .site-header__select {
        min-width: 120px;
        max-width: 160px;
    }

    .filter-bar {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Klein-Mobile (≤ 480px) */
@media (max-width: 480px) {
    :root {
        --header-row2-height: 36px;
        --header-row3-height: 36px;
    }

    .site-header__row--top {
        gap: var(--spacing-xs);
        padding: 0 var(--spacing-sm);
    }

    .site-header__logo-link {
        font-size: var(--font-size-lg);
    }
}