/* ============================================
   PixelScale.de – Layout
   Container, Sections, Grid, Header, Footer
   ============================================ */

/* ── Container ── */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

.container--narrow {
    max-width: var(--container-narrow);
}

.container--wide {
    max-width: var(--container-wide);
}

/* ── Sections ── */
.section {
    padding-block: var(--section-padding);
}

.section--alt {
    background-color: var(--color-bg-alt);
}

.section--primary-bg {
    background-color: var(--color-primary-bg-solid);
}

.section__header {
    margin-bottom: var(--space-3xl);
}

.section__label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    margin-bottom: var(--space-md);
}

.section__label::before {
    content: '';
    display: block;
    width: 1.5rem;
    height: 2px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

.section__title {
    margin-bottom: var(--space-md);
    overflow-wrap: break-word;
    word-break: break-word;
    hyphens: auto;
    -webkit-hyphens: auto;
    max-width: 100%;
}

@media (max-width: 768px) {
    .section__title {
        font-size: clamp(1.6rem, 1.25rem + 2vw, 2.15rem);
        line-height: 1.22;
        letter-spacing: -0.02em;
    }
    
    h1.section__title {
        font-size: clamp(1.75rem, 1.35rem + 2.5vw, 2.35rem);
        line-height: 1.18;
    }
}

.section__description {
    color: var(--color-text-secondary);
    font-size: var(--fs-md);
    max-width: 60ch;
}

/* ── Grid ── */
.grid {
    display: grid;
    gap: var(--space-xl);
}

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

.grid--3 {
    grid-template-columns: 1fr;
}

.grid--4 {
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .grid--2 { grid-template-columns: repeat(2, 1fr); }
    .grid--3 { grid-template-columns: repeat(2, 1fr); }
    .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .grid--3 { grid-template-columns: repeat(3, 1fr); }
    .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* ── Header / Navigation ── */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: calc(var(--z-overlay) + 10);
    height: var(--header-height);
    display: flex;
    align-items: center;
    transition: background var(--transition-base),
                box-shadow var(--transition-base),
                backdrop-filter var(--transition-base);
}

body.menu-open .header {
    background: transparent !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
}

.header--scrolled {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 1px 0 var(--color-border-light),
                var(--shadow-sm);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--container-wide);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

.header__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--color-text);
    z-index: calc(var(--z-sticky) + 1);
}

.header__logo svg {
    width: 2rem;
    height: 2rem;
}

.header__logo-text {
    font-size: var(--fs-lg);
    font-weight: var(--fw-bold);
    letter-spacing: var(--ls-tight);
}

/* Desktop Navigation */
.nav {
    display: none;
    align-items: center;
    gap: var(--space-2xl);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav__link {
    position: relative;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-text-secondary);
    text-decoration: none;
    padding-block: var(--space-xs);
    transition: color var(--transition-fast);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-base);
}

.nav__link:hover,
.nav__link.active {
    color: var(--color-text);
}

.nav__link:hover::after,
.nav__link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ── Dropdown Submenu für Leistungen (Desktop) ── */
.nav__item {
    position: relative;
    list-style: none;
}

.nav__item--has-sub > .nav__link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.nav__chevron {
    transition: transform 0.25s var(--ease-out);
    opacity: 0.65;
    flex-shrink: 0;
}

.nav__item--has-sub:hover .nav__chevron,
.nav__item--has-sub:focus-within .nav__chevron {
    transform: rotate(180deg);
    opacity: 1;
    color: var(--color-primary);
}

.nav__dropdown {
    position: absolute;
    top: 100%;
    left: -1.5rem;
    transform: translateY(10px);
    width: max-content;
    max-width: calc(100vw - 2rem);
    background: #ffffff;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    box-shadow: 0 16px 40px -10px rgba(0, 0, 0, 0.12), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s var(--ease-out), transform 0.22s var(--ease-out), visibility 0.22s var(--ease-out);
    z-index: calc(var(--z-sticky) + 10);
    margin-top: 0.5rem;
}

/* Unsichtbare Hover-Brücke für nahtloses Bewegen der Maus */
.nav__dropdown::before {
    content: '';
    position: absolute;
    top: -16px;
    left: 0;
    right: 0;
    height: 16px;
}

.nav__item--has-sub:hover .nav__dropdown,
.nav__item--has-sub:focus-within .nav__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.nav__dropdown-inner {
    padding: var(--space-md);
}

.nav__dropdown-grid {
    display: grid;
    grid-template-columns: repeat(2, max-content);
    gap: 0.35rem 1rem;
}

.nav__dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 0.75rem 1.15rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--color-text);
    transition: background var(--transition-fast);
    white-space: nowrap;
}

.nav__dropdown-item:hover {
    background: var(--color-bg-alt);
}

.nav__dropdown-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    min-width: 2.25rem;
    border-radius: var(--radius-lg);
    background: var(--color-primary-bg);
    color: var(--color-primary);
    transition: background var(--transition-fast), color var(--transition-fast);
    flex-shrink: 0;
}

.nav__dropdown-item:hover .nav__dropdown-icon {
    background: var(--color-primary);
    color: #ffffff;
}

.nav__dropdown-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.nav__dropdown-title {
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--color-text);
    line-height: var(--lh-tight);
    transition: color var(--transition-fast);
}

.nav__dropdown-item:hover .nav__dropdown-title {
    color: var(--color-primary);
}

.nav__dropdown-desc {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    line-height: var(--lh-normal);
    margin-top: 2px;
    white-space: nowrap;
}

.nav__dropdown-footer {
    margin-top: var(--space-xs);
    padding-top: var(--space-xs);
    border-top: 1px solid var(--color-border-light);
}

.nav__dropdown-all {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.45rem var(--space-md);
    border-radius: var(--radius-md);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    color: var(--color-primary);
    text-decoration: none;
    transition: background var(--transition-fast);
}

.nav__dropdown-all:hover {
    background: var(--color-primary-bg);
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0.5rem;
    position: relative;
    z-index: 100;
    cursor: pointer;
    background: none;
    border: none;
}

.nav-toggle__line {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: var(--radius-full);
    transition: transform var(--transition-base), opacity var(--transition-fast);
    transform-origin: center;
}

.nav-toggle.is-active .nav-toggle__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-active .nav-toggle__line:nth-child(2) {
    opacity: 0;
}

.nav-toggle.is-active .nav-toggle__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation Overlay */
.nav-mobile {
    position: fixed;
    inset: 0;
    z-index: var(--z-overlay);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: calc(var(--header-height) + 1.25rem) var(--container-padding) 2.5rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.nav-mobile.is-open {
    opacity: 1;
    visibility: visible;
}

.nav-mobile__inner {
    width: 100%;
    max-width: 480px;
    margin-inline: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.nav-mobile__nav {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    width: 100%;
}

.nav-mobile__link {
    font-size: 1.4rem;
    font-weight: var(--fw-semibold);
    color: var(--color-text);
    text-decoration: none;
    padding: 0.65rem 0.75rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-mobile__link:hover,
.nav-mobile__link.active {
    color: var(--color-primary);
    background: var(--color-primary-bg);
}

/* Mobile Submenu Accordion (Leistungen) */
.nav-mobile__group {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.nav-mobile__item-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.nav-mobile__item-row .nav-mobile__link {
    flex: 1;
}

.nav-mobile__toggle-btn {
    width: 2.75rem;
    height: 2.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-alt);
    border: none;
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
    margin-left: 0.5rem;
    flex-shrink: 0;
}

.nav-mobile__toggle-btn:hover,
.nav-mobile__toggle-btn.is-active {
    background: var(--color-primary-bg);
    color: var(--color-primary);
}

.nav-mobile__chevron {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-mobile__toggle-btn.is-active .nav-mobile__chevron {
    transform: rotate(180deg);
}

.nav-mobile__sub {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.35s ease, opacity 0.25s ease;
}

.nav-mobile__sub.is-open {
    max-height: 600px;
    opacity: 1;
    margin-top: 0.5rem;
}

.nav-mobile__sub-inner {
    background: var(--color-bg-alt);
    border-radius: var(--radius-xl);
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.nav-mobile__sublink {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.85rem;
    border-radius: var(--radius-lg);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.nav-mobile__sublink:hover,
.nav-mobile__sublink:active {
    background: #ffffff;
    color: var(--color-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transform: translateX(3px);
}

.nav-mobile__sublink-dot {
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    opacity: 0.4;
    flex-shrink: 0;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.nav-mobile__sublink:hover .nav-mobile__sublink-dot {
    opacity: 1;
    transform: scale(1.4);
}

.nav-mobile__sublink--all {
    margin-top: 0.25rem;
    border-top: 1px solid var(--color-border);
    padding-top: 0.75rem;
    font-weight: var(--fw-semibold);
    color: var(--color-primary);
    justify-content: space-between;
}

.nav-mobile__cta {
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
}

@media (min-width: 1024px) {
    .nav {
        display: flex;
    }

    .nav-toggle {
        display: none;
    }
}

/* ── Main Content ── */
.main {
    padding-top: var(--header-height);
}

/* ── Footer ── */
.footer {
    background: var(--color-text);
    color: var(--color-text-inverse);
    padding-block: var(--space-4xl) var(--space-2xl);
}

/* Auf der Startseite: Abgerundete Ecken oben für den Footer */
body.is-home .footer {
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-3xl);
}

@media (min-width: 640px) {
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer__grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

.footer__brand {
    max-width: 320px;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-inverse);
    text-decoration: none;
    margin-bottom: var(--space-md);
}

.footer__logo svg {
    width: 1.75rem;
    height: 1.75rem;
}

.footer__logo-text {
    font-size: var(--fs-lg);
    font-weight: var(--fw-bold);
}

.footer__text {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--fs-sm);
    line-height: var(--lh-relaxed);
}

.footer__heading {
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: var(--space-lg);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__link {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--fs-sm);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer__link:hover {
    color: var(--color-text-inverse);
}

.footer__bottom {
    padding-top: var(--space-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
    text-align: center;
}

@media (min-width: 768px) {
    .footer__bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer__copyright {
    color: rgba(255, 255, 255, 0.4);
    font-size: var(--fs-xs);
}

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

.footer__legal a {
    color: rgba(255, 255, 255, 0.4);
    font-size: var(--fs-xs);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer__legal a:hover {
    color: rgba(255, 255, 255, 0.7);
}

/* ── Breadcrumbs ── */
.breadcrumbs {
    padding-top: var(--space-md);
    padding-bottom: 0;
}

.breadcrumbs__list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--fs-sm);
    color: var(--color-text-tertiary);
}

.breadcrumbs__item a {
    color: var(--color-text-tertiary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumbs__item a:hover {
    color: var(--color-primary);
}

.breadcrumbs__separator {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-tertiary);
    opacity: 0.75;
    user-select: none;
    line-height: 1;
}

.breadcrumbs__separator svg {
    width: 13px;
    height: 13px;
    display: block;
    stroke: currentColor;
}

.breadcrumbs__item + .breadcrumbs__item::before {
    display: none;
}

.breadcrumbs__item--active {
    color: var(--color-text);
    font-weight: var(--fw-medium);
}