/* Layout-Stile - Responsives Rastersystem */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-default);
    overflow-x: hidden;
}

/* Benutzerdefinierte Scrollleiste - vollständig ausgeblendet */

/* Webkit-Browser (Chrome, Safari, Edge) - Alle Scrollleisten ausblenden */
html::-webkit-scrollbar,
body::-webkit-scrollbar,
*::-webkit-scrollbar {
    width: 0px !important;
    height: 0px !important;
    display: none !important;
}

html::-webkit-scrollbar-track,
body::-webkit-scrollbar-track,
*::-webkit-scrollbar-track {
    background: transparent !important;
    display: none !important;
}

html::-webkit-scrollbar-thumb,
body::-webkit-scrollbar-thumb,
*::-webkit-scrollbar-thumb {
    background: transparent !important;
    display: none !important;
}

/* Firefox - Alle Scrollleisten ausblenden */
html, body, * {
    scrollbar-width: none !important;
}

/* IE und Edge Legacy - Alle Scrollleisten ausblenden */
html, body, * {
    -ms-overflow-style: none !important;
}

/* Sprunglink für Barrierefreiheit */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-accent-primary);
    color: var(--color-bg-default);
    padding: var(--space-sm) var(--space-md);
    text-decoration: none;
    border-radius: 0 0 var(--radius-md) 0;
    z-index: calc(var(--z-tooltip) + 1);
    font-weight: var(--font-weight-semibold);
}

.skip-link:focus {
    top: 0;
}

/* Nur für Screenreader */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Haupt-App-Container */
.app-container {
    display: block;
    min-height: 100vh;
    background: var(--color-bg-default);
}

/* Sidebar-Navigation */

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--glass-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    z-index: var(--z-fixed);
    overflow-y: auto;
    overflow-x: hidden;
    transition: transform var(--transition-base);
}

.sidebar.hidden {
    transform: translateX(-100%);
}

.sidebar-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    color: var(--color-text-primary);
    width: 100%;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    text-align: left;
}

.logo:hover {
    color: var(--color-text-primary);
    background: none;
}

.logo:hover svg {
    color: var(--color-interactive-primary);
    filter: drop-shadow(0 4px 12px rgba(177, 197, 255, 0.40));
}

.logo:active {
    transform: none;
}

.logo svg {
    flex-shrink: 0;
    color: var(--color-accent-primary);
    filter: drop-shadow(0 2px 8px rgba(177, 197, 255, 0.25));
    transition: filter var(--transition-fast);
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.01em;
    color: var(--color-interactive-primary);
}

/* Navigationsmenü */
.nav-menu {
    flex: 1;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4375rem var(--space-sm);
    border: none;
    background: transparent;
    color: var(--color-on-surface);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-align: left;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
    position: relative;
}

.nav-item:hover {
    background: var(--color-bg-subtle);
    color: var(--color-on-surface);
}

.nav-item.active {
    background: rgba(177, 197, 255, 0.12);
    color: var(--color-interactive-primary);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: var(--color-interactive-primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.nav-icon {
    flex-shrink: 0;
    opacity: 0.7;
}

.nav-item.active .nav-icon {
    opacity: 1;
}

.nav-item span:nth-child(2) {
    flex: 1;
}

.nav-badge {
    padding: 0.125rem 0.375rem;
    background: var(--color-surface-container-highest);
    color: var(--color-on-surface-variant);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    line-height: 1;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-badge.badge-warning {
    background: var(--color-warning-emphasis);
    color: var(--color-bg-default);
}

.nav-badge.badge-danger {
    background: var(--color-danger-emphasis);
    color: var(--color-bg-default);
}

/* Navigationsgruppen (einklappbar) */
.nav-group {
    margin-bottom: var(--space-xs);
}

.nav-group-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-align: left;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
    position: relative;
}

.nav-group-header:hover {
    background: var(--color-bg-canvas);
    color: var(--color-on-surface);
}

.nav-group-header .nav-icon {
    width: 16px;
    height: 16px;
    opacity: 0.6;
}

.nav-group-header span:nth-child(2) {
    flex: 1;
}

.nav-group-icon {
    flex-shrink: 0;
    opacity: 0.5;
    transition: transform var(--transition-fast);
}

.nav-group.open .nav-group-icon {
    transform: rotate(180deg);
}

.nav-group-content {
    display: none;
    flex-direction: column;
    gap: var(--space-xs);
    padding-left: var(--space-md);
    margin-top: var(--space-xs);
}

.nav-group.open .nav-group-content {
    display: flex;
}

.nav-item-sub {
    padding-left: var(--space-md);
    font-size: var(--font-size-sm);
}

/* Sidebar-Fußzeile */
.sidebar-footer {
    padding: var(--space-md);
    border-top: 1px solid var(--glass-border);
    display: flex;
    gap: var(--space-sm);
}

.sidebar-footer button {
    flex: 1;
    padding: var(--space-sm);
    border: 1px solid var(--glass-border);
    background: transparent;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-footer button:hover {
    background: var(--color-bg-canvas);
    color: var(--color-text-primary);
    border-color: var(--glass-border);
}

/* Haupt-Inhaltsbereich */

.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    background: var(--color-bg-default);
    overflow-y: auto;
    overflow-x: hidden;
    transition: margin-left var(--transition-base);
}

.sidebar.hidden ~ .main-content {
    margin-left: 0;
}

/* Scrollleiste für main-content ausblenden */
.main-content::-webkit-scrollbar {
    width: 0px;
    display: none;
}

.main-content {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.content-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border-bottom: 1px solid var(--glass-border);
    padding: var(--space-lg) var(--space-2xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-lg);
    overflow: hidden;
}

.header-title h1 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-on-surface);
    line-height: var(--line-height-tight);
    margin-bottom: var(--space-xs);
    letter-spacing: var(--type-headline-lg-ls);
}

.header-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
}

.header-actions {
    display: flex;
    gap: var(--space-md);
    align-items: center;
    flex-wrap: wrap;
    flex-shrink: 1;
    min-width: 0;
    max-width: 100%;
}

/* Burger-Menü (alle Bildschirmgrößen) */

.burger-menu {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: calc(var(--z-fixed) + 1);
    position: relative;
    margin-right: var(--space-md);
}

.burger-menu span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-on-surface);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    transform-origin: center;
}

.burger-menu:hover span {
    background: var(--color-interactive-primary);
}

/* Burger-Menü-Animation wenn aktiv */
.burger-menu.active span:nth-child(1) {
    transform: translateY(10.5px) rotate(45deg);
}

.burger-menu.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-20px);
}

.burger-menu.active span:nth-child(3) {
    transform: translateY(-10.5px) rotate(-45deg);
}

/* Mobile Überlagerung */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(12, 14, 20, 0.80);
    backdrop-filter: blur(4px);
    z-index: calc(var(--z-fixed) - 1);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.mobile-overlay.active {
    display: block;
    opacity: 1;
}

/* Inhaltsbereich */

.content-body {
    padding: var(--space-2xl);
    max-width: var(--content-max-width);
    margin: 0 auto;
    overflow-x: hidden;
}

/* Scrollleiste für content-body ausblenden */
.content-body::-webkit-scrollbar {
    width: 0px;
    display: none;
}

.content-body {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* Rastersystem */

.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.col-span-1 { grid-column: span 1; }
.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }

/* Flexbox-Hilfsfunktionen */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* Modal-Stile */

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(12, 14, 20, 0.80);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.modal-backdrop.active {
    display: flex;
    opacity: 1;
}

.modal {
    background: var(--glass-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid var(--glass-border);
    border-radius: 4px;
    box-shadow: var(--shadow-xlarge);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: transform var(--transition-base);
}

.modal-backdrop.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--glass-border);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-on-surface);
    margin: 0;
    letter-spacing: -0.01em;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-bg-subtle);
    color: var(--color-text-primary);
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
    padding: var(--space-lg);
    border-top: 1px solid var(--glass-border);
}

/* Filterleisten-Korrektur - Safeguards-Ansicht */

.card > .flex.justify-between {
    flex-wrap: wrap;
    gap: var(--space-md);
}

.card > .flex.justify-between > .flex {
    flex-wrap: wrap;
}

/* Toast-Benachrichtigungen */

.toast-container {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: var(--z-tooltip);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    pointer-events: none;
}

/* Ladeüberlagerung */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(12, 14, 20, 0.70);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
}

.loading-overlay[aria-hidden="false"] {
    display: flex;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--color-border-default);
    border-top-color: var(--color-accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsives Design */

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 240px;
    }
    
    .content-header {
        padding: var(--space-lg);
    }
    
    .content-body {
        padding: var(--space-lg);
    }
    
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobil */
@media (max-width: 768px) {
    /* Auf Mobile: Sidebar standardmäßig versteckt */
    .sidebar {
        transform: translateX(-100%);
        box-shadow: var(--shadow-xlarge);
    }

    /* Auf Mobile: Sidebar ohne .hidden ist sichtbar */
    .sidebar:not(.hidden) {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }
    
    .content-header {
        flex-direction: column;
        align-items: flex-start;
        padding: var(--space-md);
    }
    
    .header-actions {
        width: 100%;
        flex-wrap: wrap;
    }
    
    .content-body {
        padding: var(--space-md);
    }
    
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
    
    .header-title h1 {
        font-size: var(--font-size-2xl);
    }
}

/* Kleines Mobilgerät */
@media (max-width: 480px) {
    :root {
        font-size: 14px;
    }
    
    .sidebar {
        width: 100%;
    }
    
    .content-header {
        padding: var(--space-sm);
    }
    
    .content-body {
        padding: var(--space-sm);
    }
}

/* Asset-Management-System - Iframe-Integration */

.asset-management-container {
    position: relative;
    width: 100%;
    height: calc(100vh - 120px); /* Volle Höhe minus Kopfzeile */
    background: var(--color-bg-canvas);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border-default);
    box-shadow: var(--shadow-medium);
}

.asset-management-iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

/* Druckstile */
@media print {
    .sidebar,
    .content-header,
    .modal-backdrop,
    .toast-container,
    .loading-overlay {
        display: none !important;
    }

    .main-content {
        margin-left: 0;
    }

    .content-body {
        padding: 0;
        max-width: 100%;
    }
}