/* ============================================================
   PsychoBerlin – Layout, Grid & Navigation
   M3 Responsive: 4 cols (mobile), 8 cols (tablet), 12 cols (desktop)
   Breakpoints: 600px / 905px / 1440px
   ============================================================ */

/* ── Responsive Grid (mobile-first) ────────────────────────── */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

/* Mobile: single column */
.grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }

/* Tablet (768px) */
@media (min-width: 768px) {
    .container { max-width: 720px; }
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

/* Desktop (1024px) */
@media (min-width: 1024px) {
    .container { max-width: 960px; }
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(3, 1fr); }
}

/* Large Desktop (1280px) */
@media (min-width: 1280px) {
    .container { max-width: 1200px; }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ── Header ─────────────────────────────────────────────────── */
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background-color: var(--md-sys-color-surface);
    border-bottom: 1px solid var(--md-sys-color-outline);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    padding: 0 var(--spacing-md);
    max-width: 1440px;
    margin: 0 auto;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--md-sys-color-on-surface);
    font-size: var(--md-sys-typescale-title-large-size);
    font-weight: 700;
}

.header-logo span {
    color: var(--md-sys-color-primary);
}

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

/* ── Desktop Navigation (Navigation Drawer) ─────────────────── */
.nav-desktop {
    display: none;
}

@media (min-width: 905px) {
    .nav-desktop {
        display: block;
    }

    .nav-desktop ul {
        display: flex;
        align-items: center;
        gap: var(--spacing-xs);
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .nav-desktop a {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
        padding: 8px 16px;
        border-radius: var(--md-sys-shape-corner-full);
        font-size: var(--md-sys-typescale-label-large-size);
        font-weight: var(--md-sys-typescale-label-large-weight);
        color: var(--md-sys-color-on-surface-variant);
        text-decoration: none;
        transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
    }

    .nav-desktop a:hover {
        background-color: var(--md-sys-color-surface-container-high);
        color: var(--md-sys-color-on-surface);
    }

    .nav-desktop a.active {
        background-color: var(--md-sys-color-accent-container);
        color: var(--md-sys-color-on-accent-container);
    }
}

/* ── Mobile Navigation (Bottom Navigation Bar) ──────────────── */
.nav-mobile {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background-color: var(--md-sys-color-surface-container);
    border-top: 1px solid var(--md-sys-color-outline);
    padding-bottom: env(safe-area-inset-bottom, 0);
}

@media (min-width: 905px) {
    .nav-mobile { display: none; }
}

.nav-mobile ul {
    display: flex;
    justify-content: space-around;
    align-items: center;
    list-style: none;
    padding: 0;
    margin: 0;
    min-height: 80px;
}

.nav-mobile a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 0;
    min-width: 64px;
    text-decoration: none;
    color: var(--md-sys-color-on-surface-variant);
    transition: color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.nav-mobile a .nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 32px;
    border-radius: var(--md-sys-shape-corner-full);
    transition: background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.nav-mobile a.active .nav-icon {
    background-color: var(--md-sys-color-accent-container);
}

.nav-mobile a.active {
    color: var(--md-sys-color-on-surface);
}

.nav-mobile .nav-label {
    font-size: var(--md-sys-typescale-label-medium-size);
    font-weight: var(--md-sys-typescale-label-medium-weight);
}

.nav-mobile a:focus-visible {
    outline: 2px solid var(--md-sys-color-accent);
    outline-offset: -2px;
    border-radius: var(--md-sys-shape-corner-small);
}

/* ── Content Area ───────────────────────────────────────────── */
.main-content {
    padding-bottom: 96px; /* Platz für Mobile Nav */
}

@media (min-width: 905px) {
    .main-content {
        padding-bottom: 0;
    }
}

/* ── Crisis Banner ──────────────────────────────────────────── */
.crisis-banner {
    background-color: var(--md-sys-color-accent);
    color: var(--md-sys-color-on-accent);
    padding: 8px var(--spacing-md);
    text-align: center;
    font-size: var(--md-sys-typescale-body-medium-size);
    font-weight: 500;
    z-index: var(--z-crisis-banner);
}

.crisis-banner a {
    color: inherit;
    font-weight: 700;
    text-decoration: underline;
}

.crisis-banner a:hover {
    color: inherit;
}

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
    background-color: var(--md-sys-color-surface-container-highest);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    font-size: var(--md-sys-typescale-title-small-size);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--md-sys-color-on-surface);
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: var(--md-sys-color-on-surface-variant);
    font-size: var(--md-sys-typescale-body-medium-size);
}

.footer-section a:hover {
    color: var(--md-sys-color-primary);
}

.footer-bottom {
    border-top: 1px solid var(--md-sys-color-outline);
    padding-top: var(--spacing-md);
    text-align: center;
    font-size: var(--md-sys-typescale-body-small-size);
    color: var(--md-sys-color-on-surface-variant);
}

/* ── Cookie Banner ──────────────────────────────────────────── */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--z-cookie-banner);
    background-color: var(--md-sys-color-surface-container);
    box-shadow: var(--md-sys-elevation-4);
    padding: var(--spacing-lg);
    transform: translateY(100%);
    transition: transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-banner-inner {
    max-width: 800px;
    margin: 0 auto;
}

.cookie-banner h3 {
    font-size: var(--md-sys-typescale-title-medium-size);
    margin-bottom: var(--spacing-sm);
}

.cookie-banner p {
    font-size: var(--md-sys-typescale-body-medium-size);
    color: var(--md-sys-color-on-surface-variant);
    margin-bottom: var(--spacing-md);
}

.cookie-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

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

.cookie-option input[type="checkbox"] {
    accent-color: var(--md-sys-color-primary);
    width: 18px;
    height: 18px;
}

.cookie-option label {
    font-size: var(--md-sys-typescale-body-medium-size);
    cursor: pointer;
}

.cookie-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ── Section Spacing ────────────────────────────────────────── */
.section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    font-size: var(--md-sys-typescale-headline-medium-size);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--md-sys-typescale-body-large-size);
    color: var(--md-sys-color-on-surface-variant);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ── Breadcrumbs ────────────────────────────────────────────── */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
    font-size: var(--md-sys-typescale-body-medium-size);
    color: var(--md-sys-color-on-surface-variant);
    flex-wrap: wrap;
}

.breadcrumbs a {
    color: var(--md-sys-color-on-surface-variant);
}

.breadcrumbs a:hover {
    color: var(--md-sys-color-primary);
}

.breadcrumbs .separator {
    color: var(--md-sys-color-outline-variant);
}

/* ── Flash Messages ─────────────────────────────────────────── */
.flash-messages {
    padding: var(--spacing-md) 0;
}

.flash {
    padding: 12px 16px;
    border-radius: var(--md-sys-shape-corner-small);
    margin-bottom: var(--spacing-sm);
    font-size: var(--md-sys-typescale-body-medium-size);
}

.flash-success {
    background-color: var(--md-sys-color-success-container);
    color: var(--md-sys-color-success);
}

.flash-error {
    background-color: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
}

.flash-info {
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}

/* ── Hamburger Menu Toggle ─────────────────────────────────── */
.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--md-sys-color-on-surface);
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: var(--md-sys-shape-corner-small);
    transition: background-color 0.2s;
}

.nav-hamburger:hover {
    background-color: var(--md-sys-color-surface-container-high);
}

.nav-hamburger:focus-visible {
    outline: 2px solid var(--md-sys-color-accent);
    outline-offset: 2px;
}

.nav-hamburger .material-symbols-outlined {
    font-size: 24px;
}

@media (max-width: 904px) {
    .nav-hamburger { display: inline-flex; }
}

/* ── Mobile Drawer Navigation ──────────────────────────────── */
.nav-drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.nav-drawer-backdrop.open {
    opacity: 1;
    visibility: visible;
}

.nav-drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    max-width: 85vw;
    background: var(--md-sys-color-surface);
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.3s var(--md-sys-motion-easing-emphasized);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    box-shadow: var(--md-sys-elevation-4);
    padding: var(--spacing-md);
}

.nav-drawer.open {
    transform: translateX(0);
}

.nav-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--md-sys-color-outline);
}

.nav-drawer-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--md-sys-color-on-surface);
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--md-sys-shape-corner-full);
}

.nav-drawer-close:hover {
    background-color: var(--md-sys-color-surface-container-high);
}

.nav-drawer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-drawer a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 16px;
    border-radius: var(--md-sys-shape-corner-small);
    color: var(--md-sys-color-on-surface-variant);
    text-decoration: none;
    font-size: var(--md-sys-typescale-label-large-size);
    font-weight: var(--md-sys-typescale-label-large-weight);
    min-height: 44px;
    transition: background-color 0.2s, color 0.2s;
}

.nav-drawer a:hover {
    background-color: var(--md-sys-color-surface-container-high);
    color: var(--md-sys-color-on-surface);
    text-decoration: none;
}

.nav-drawer a.active {
    background-color: var(--md-sys-color-accent-container);
    color: var(--md-sys-color-on-accent-container);
}

/* Body scroll lock when drawer is open */
body.nav-open {
    overflow: hidden;
}

@media (min-width: 905px) {
    .nav-drawer-backdrop,
    .nav-drawer { display: none !important; }
}

/* ── Print Styles ──────────────────────────────────────────── */
@media print {
    .header, .site-header, .footer, .site-footer,
    .nav-mobile, .nav-drawer, .nav-drawer-backdrop, .nav-hamburger,
    .crisis-banner, .cookie-banner, .pwa-install-banner,
    .offline-indicator, .crisis-fab, .btn-fab, .fab,
    .snackbar, .swipe-hint { display: none !important; }
    .container { max-width: 100%; padding: 0; }
    .main-content { padding-bottom: 0; }
    body { font-size: 12pt; color: #000; background: #fff; }
    a { color: #000; text-decoration: underline; }
    .card, .provider-card, .teaser-card {
        box-shadow: none;
        border: 1px solid #ddd;
        break-inside: avoid;
    }
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ── B2B Layout Styles ─────────────────────────────────────── */
:root {
    --b2b-primary: #1e40af;
    --b2b-primary-light: #3b82f6;
    --b2b-primary-bg: #eff6ff;
}

.b2b-header {
    background: var(--b2b-primary);
    color: #fff;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.b2b-header a { color: #fff; text-decoration: none; }

.b2b-logo {
    font-size: var(--md-sys-typescale-title-medium-size);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.b2b-logo span { opacity: .8; font-weight: 400; font-size: 13px; }

.b2b-nav { display: flex; gap: var(--spacing-sm); align-items: center; }

.b2b-nav a {
    padding: 6px 12px;
    border-radius: var(--md-sys-shape-corner-small);
    font-size: var(--md-sys-typescale-body-medium-size);
    transition: background 0.15s;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}

.b2b-nav a:hover, .b2b-nav a.active { background: rgba(255,255,255,.15); }

.b2b-nav .material-symbols-outlined { font-size: 18px; vertical-align: middle; margin-right: 4px; }

.b2b-content { padding: var(--spacing-xl) var(--spacing-lg); max-width: 1200px; margin: 0 auto; }

@media (max-width: 767px) {
    .b2b-nav { flex-wrap: wrap; gap: 4px; }
    .b2b-nav a { font-size: var(--md-sys-typescale-label-medium-size); padding: 4px 8px; }
    .b2b-header { height: auto; padding: var(--spacing-sm) var(--spacing-md); flex-wrap: wrap; gap: var(--spacing-sm); }
}