/* Rheinvest — Layout
 * Header A: transparent → solid (sticky)
 * Footer F: SVG-Welle + dunkler 3-Spalten-Bereich
 * Container, Sections
 */

/* ============================================================
 * Container
 * ============================================================ */
.plattf-container {
    width: 100%;
    max-width: var(--plattf-maxw);
    margin-left: auto;
    margin-right: auto;
    padding-left: clamp(1rem, 4vw, 2rem);
    padding-right: clamp(1rem, 4vw, 2rem);
}

.plattf-container--narrow {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    padding-left: clamp(1rem, 4vw, 2rem);
    padding-right: clamp(1rem, 4vw, 2rem);
}

/* ============================================================
 * Skip Link
 * ============================================================ */
.skip-to-content {
    position: absolute;
    left: -9999px;
    top: 1rem;
    background: var(--plattf-primary);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: var(--plattf-radius);
    z-index: 9999;
    font-weight: 600;
}

.skip-to-content:focus {
    left: 1rem;
}

/* ============================================================
 * Header A — Transparent → Solid on Scroll
 * ============================================================ */
.plattf-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: background var(--plattf-transition), box-shadow var(--plattf-transition),
                padding var(--plattf-transition);
    padding: 1.25rem 0;
    background: transparent;
}

.plattf-header.scrolled {
    background: var(--plattf-primary);
    box-shadow: 0 2px 20px rgba(15,61,46,0.25);
    padding: 0.75rem 0;
}

/* Wenn nicht auf Hero (kein Bild dahinter) sofort solide */
body:not(.has-hero-image) .plattf-header {
    background: var(--plattf-primary);
}

.plattf-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

/* Logo */
.plattf-logo {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    color: #fff;
    font-family: var(--plattf-font-head);
    font-size: 1.35rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    text-decoration: none;
}

.plattf-logo:hover {
    color: var(--plattf-accent);
}

.plattf-logo img {
    height: 44px;
    width: auto;
}

/* Navigation */
.plattf-nav {
    display: flex;
    align-items: center;
    flex: 1;
    justify-content: center;
}

.plattf-nav-list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.plattf-nav-list li a {
    display: block;
    padding: 0.4rem 0.8rem;
    color: rgba(255,255,255,0.88);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--plattf-radius);
    transition: color var(--plattf-transition), background var(--plattf-transition);
    white-space: nowrap;
}

.plattf-nav-list li a:hover,
.plattf-nav-list li.current-menu-item > a {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

/* Dropdown */
.plattf-nav-list .sub-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 220px;
    background: var(--plattf-surface);
    border: 1px solid var(--plattf-border);
    border-radius: var(--plattf-radius);
    box-shadow: var(--plattf-shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.18s ease;
    z-index: 100;
    list-style: none;
    padding: 0.4rem;
}

.plattf-nav-list li {
    position: relative;
}

.plattf-nav-list li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.plattf-nav-list .sub-menu a {
    color: var(--plattf-text);
    padding: 0.5rem 0.8rem;
    font-size: 0.88rem;
}

.plattf-nav-list .sub-menu a:hover {
    background: var(--plattf-bg);
    color: var(--plattf-primary);
}

/* Header CTA / Platforms quick-nav */
.plattf-header-cta {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.plattf-platforms-nav {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    margin: 0; padding: 0;
}

.plattf-platforms-nav a {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    background: rgba(168,194,86,0.2);
    color: var(--plattf-accent);
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 600;
    border: 1px solid rgba(168,194,86,0.35);
    transition: all var(--plattf-transition);
}

.plattf-platforms-nav a:hover {
    background: var(--plattf-accent);
    color: var(--plattf-primary);
    border-color: var(--plattf-accent);
}

/* Burger Button */
.plattf-burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    border-radius: var(--plattf-radius);
    border: 1px solid rgba(255,255,255,0.2);
    cursor: pointer;
    flex-shrink: 0;
}

.plattf-burger span {
    display: block;
    width: 20px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.22s ease;
}

.nav-open .plattf-burger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-open .plattf-burger span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.nav-open .plattf-burger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
 * Main Content Area
 * ============================================================ */
#plattf-main {
    min-height: 60vh;
}

/* Padding-top ausgleichen fuer fixed header */
.site-content {
    padding-top: 80px;
}

body.has-hero-image .site-content {
    padding-top: 0;
}

/* ============================================================
 * Section Defaults
 * ============================================================ */
.plattf-section {
    padding: clamp(3rem, 7vw, 6rem) 0;
}

.plattf-section--sm {
    padding: clamp(1.5rem, 4vw, 3rem) 0;
}

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

.plattf-section--dark {
    background: var(--plattf-primary);
    color: rgba(255,255,255,0.9);
}

.plattf-section--dark h1,
.plattf-section--dark h2,
.plattf-section--dark h3 {
    color: #fff;
}

.plattf-section-head {
    text-align: center;
    margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.plattf-section-head h2 {
    margin-bottom: 0.75rem;
}

.plattf-section-head p {
    font-size: 1.1rem;
    color: var(--plattf-muted);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================================
 * Footer F — SVG-Welle + Dunkler 3-Spalten-Footer
 * ============================================================ */
.plattf-footer-wave {
    display: block;
    width: 100%;
    line-height: 0;
    margin-bottom: -2px;
}

.plattf-footer-wave svg {
    width: 100%;
    height: auto;
    display: block;
}

.plattf-footer {
    background: var(--plattf-primary);
    color: rgba(255,255,255,0.8);
    padding: 3rem 0 0;
}

.plattf-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: clamp(1.5rem, 4vw, 3rem);
    padding-bottom: 2.5rem;
}

.plattf-footer-col h4 {
    color: #fff;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.plattf-footer-col p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.plattf-footer-logo {
    color: #fff;
    font-family: var(--plattf-font-head);
    font-size: 1.35rem;
    font-weight: 900;
    display: block;
    margin-bottom: 0.75rem;
    text-decoration: none;
}

.plattf-footer-logo:hover {
    color: var(--plattf-accent);
}

.plattf-footer-nav {
    list-style: none;
    margin: 0; padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.plattf-footer-nav a {
    color: rgba(255,255,255,0.7);
    font-size: 0.88rem;
    transition: color var(--plattf-transition);
}

.plattf-footer-nav a:hover {
    color: var(--plattf-accent);
}

.plattf-footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 1.25rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.plattf-footer-copy {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.45);
}

.plattf-footer-legal {
    display: flex;
    gap: 1rem;
    list-style: none;
    flex-wrap: wrap;
}

.plattf-footer-legal a {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.45);
    transition: color var(--plattf-transition);
}

.plattf-footer-legal a:hover {
    color: rgba(255,255,255,0.8);
}

/* ============================================================
 * Breadcrumb
 * ============================================================ */
.plattf-breadcrumb {
    padding: 0.75rem 0;
    font-size: 0.82rem;
    color: var(--plattf-muted);
}

.plattf-breadcrumb a {
    color: var(--plattf-muted);
}

.plattf-breadcrumb a:hover {
    color: var(--plattf-secondary);
}

.plattf-breadcrumb span + span::before {
    content: ' / ';
    opacity: 0.5;
}

/* ============================================================
 * Pagination
 * ============================================================ */
.plattf-pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin: 3rem 0;
    flex-wrap: wrap;
}

.plattf-pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 0.75rem;
    border: 1px solid var(--plattf-border);
    border-radius: var(--plattf-radius);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--plattf-text);
    background: var(--plattf-surface);
    transition: all var(--plattf-transition);
}

.plattf-pagination .page-numbers:hover,
.plattf-pagination .page-numbers.current {
    background: var(--plattf-primary);
    color: #fff;
    border-color: var(--plattf-primary);
}