/* =============================================
   RESET & BASIS
   ============================================= */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #1A1A1A;
    background: #FFFFFF;
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

/* =============================================
   NAVIGATION
   ============================================= */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    height: 70px;
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease;
}

/* Nav wird weiß sobald man scrollt */
#navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* Logo: schwarz-weiß PNG — über dunklem Hero weiß, nach Scrollen normal */
.nav-logo img {
    height: 38px;
    width: auto;
    filter: invert(1);
    transition: filter 0.4s ease;
}

#navbar.scrolled .nav-logo img {
    filter: invert(0);
}

/* Navigationslinks */
.nav-links {
    display: flex;
    list-style: none;
    gap: 36px;
}

.nav-link {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.9);
    transition: color 0.3s ease, opacity 0.3s ease;
    position: relative;
}

/* Unterstrich-Animation beim Hover */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

#navbar.scrolled .nav-link {
    color: #1A1A1A;
}

/* Hamburger-Menü (nur auf Mobile sichtbar) */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 10;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    transition: all 0.3s ease;
    transform-origin: center;
}

#navbar.scrolled .hamburger span {
    background: #1A1A1A;
}

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

/* =============================================
   HERO — Vollbild-Bildwechsler
   ============================================= */
#hero {
    position: relative;
    width: 100%;
    height: 100svh; /* svh = besser auf Mobile (berücksichtigt Adressleiste) */
    overflow: hidden;
}

/* Jedes Bild überlagert das andere, nur das aktive ist sichtbar */
/* =============================================
   FILMSTREIFEN — Kino-Band Effekt
   ============================================= */

/* Äußerer Container — leicht geneigt für den Kino-Look */
.filmstrip {
    position: absolute;
    /* etwas größer als der Hero damit die Ränder bei Rotation nicht sichtbar sind */
    inset: -8%;
    display: flex;
    flex-direction: column;
    gap: 4px;
    transform: rotate(-4deg) scale(1.08);
    transform-origin: center center;
}

/* Eine horizontale Reihe */
.strip {
    flex: 1;
    overflow: hidden;
    display: flex;
    align-items: stretch;
    min-height: 0;
}

/* Die bewegliche Schiene innerhalb der Reihe */
.strip-track {
    display: flex;
    gap: 4px;
    width: max-content;
    height: 100%;
    animation: strip-left 38s linear infinite;
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Reihe 2 läuft in die Gegenrichtung */
.strip--reverse .strip-track {
    animation: strip-right 44s linear infinite;
}

/* Reihe 3 läuft langsamer (anderer Rhythmus = organischer Effekt) */
.strip-track--slow {
    animation-duration: 52s;
}

/* Einzelnes Foto im Filmstreifen — natürliches Seitenverhältnis */
.strip-item {
    flex-shrink: 0;
    height: 100%;
    overflow: hidden;
    display: flex;
    align-items: stretch;
}

.strip-item img {
    height: 100%;
    width: auto;      /* natürliche Breite: Hochformat = schmal, Querformat = breit */
    display: block;
    pointer-events: none;
    user-select: none;
    flex-shrink: 0;
}

/* Interaktiv: Streifen pausieren beim Drüberfahren */
.filmstrip:hover .strip-track {
    animation-play-state: paused;
}

/* Nahtlose Endlosschleife — die zweite Hälfte der Fotos ist identisch zur ersten */
@keyframes strip-left {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

@keyframes strip-right {
    from { transform: translateX(-50%); }
    to   { transform: translateX(0); }
}

/* Dunkler Schleier damit Logo und Text lesbar bleiben */
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.52) 0%,
        rgba(0, 0, 0, 0.22) 40%,
        rgba(0, 0, 0, 0.22) 60%,
        rgba(0, 0, 0, 0.58) 100%
    );
    z-index: 1;
}

/* Logo und Tagline in der Mitte */
.hero-content {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
}

.hero-logo {
    width: min(360px, 62vw);
    height: auto;
    /* invert: schwarz→weiß | drop-shadow: weißer Leuchteffekt */
    filter: invert(1) drop-shadow(0 0 32px rgba(255, 255, 255, 0.5));
    user-select: none;
}

.hero-tagline {
    margin-top: 20px;
    font-size: 12px;
    font-weight: 300;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.75);
}

/* Pfeil-Animation nach unten */
.hero-scroll-hint {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: rgba(255, 255, 255, 0.65);
    animation: bounce 2.2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50%       { transform: translateX(-50%) translateY(10px); }
}

/* =============================================
   SECTIONS — Gemeinsame Stile
   ============================================= */
.section {
    padding: 100px 40px;
    content-visibility: auto;       /* Browser rendert nur sichtbare Abschnitte */
    contain-intrinsic-size: 0 600px; /* geschätzte Höhe für Layout-Berechnung */
}

.section--gray {
    background: #F7F7F7;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: clamp(26px, 4vw, 42px);
    font-weight: 300;
    letter-spacing: -0.02em;
    color: #1A1A1A;
}

.section-subtitle {
    margin-top: 12px;
    font-size: 14px;
    color: #888888;
    font-weight: 300;
    letter-spacing: 0.02em;
}

/* =============================================
   HIGHLIGHTS
   ============================================= */
.highlights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    max-width: 1200px;
    margin: 0 auto;
}

.highlight-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    cursor: pointer;
    background: #E8E8E8;
}

.highlight-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

.highlight-item:hover img {
    transform: scale(1.06);
}

/* Label erscheint beim Drüberfahren */
.highlight-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 48px 16px 16px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.65) 0%, transparent 100%);
    color: white;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.highlight-item:hover .highlight-label {
    opacity: 1;
    transform: translateY(0);
}

/* =============================================
   FEED — Neueste Aufnahmen
   ============================================= */
.feed {
    max-width: 1080px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 90px;
}

.feed-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

/* Umgekehrte Reihenfolge (Bild rechts) */
.feed-item--reverse .feed-image {
    grid-column: 2;
    grid-row: 1;
}

.feed-item--reverse .feed-text {
    grid-column: 1;
    grid-row: 1;
}

.feed-image {
    overflow: hidden;
    aspect-ratio: 3 / 2;
    background: #E8E8E8;
}

.feed-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

.feed-image:hover img {
    transform: scale(1.04);
}

.feed-date {
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #888888;
}

.feed-title {
    margin-top: 14px;
    font-size: clamp(18px, 2.2vw, 26px);
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.feed-description {
    margin-top: 16px;
    font-size: 15px;
    color: #555555;
    line-height: 1.85;
    font-weight: 300;
}

.feed-link {
    display: inline-block;
    margin-top: 28px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #1A1A1A;
    border-bottom: 1px solid #1A1A1A;
    padding-bottom: 3px;
    transition: opacity 0.25s ease;
}

.feed-link:hover {
    opacity: 0.5;
}

/* =============================================
   GALERIE
   ============================================= */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    max-width: 1200px;
    margin: 0 auto;
}

.gallery-card {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3 / 2;
    cursor: pointer;
    background: #E8E8E8;
}

/* Breite Karte nimmt volle Breite ein */
.gallery-card--wide {
    grid-column: span 2;
    aspect-ratio: 16 / 7;
}

.gallery-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

.gallery-card:hover img {
    transform: scale(1.04);
}

.gallery-card-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: background 0.4s ease;
}

.gallery-card:hover .gallery-card-overlay {
    background: rgba(0, 0, 0, 0.42);
}

.gallery-card-title {
    color: white;
    font-size: 18px;
    font-weight: 300;
    letter-spacing: 0.06em;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.gallery-card-btn {
    margin-top: 16px;
    padding: 10px 26px;
    border: 1px solid rgba(255, 255, 255, 0.85);
    color: white;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.35s ease 0.05s, transform 0.35s ease 0.05s, background 0.2s ease, color 0.2s ease;
}

.gallery-card-btn:hover {
    background: white;
    color: #1A1A1A;
}

.gallery-card:hover .gallery-card-title,
.gallery-card:hover .gallery-card-btn {
    opacity: 1;
    transform: translateY(0);
}

/* =============================================
   ÜBER MICH
   ============================================= */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 960px;
    margin: 0 auto;
}

.about-image {
    overflow: hidden;
    aspect-ratio: 4 / 5;
    background: #E8E8E8;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-text h3 {
    font-size: 26px;
    font-weight: 300;
    letter-spacing: -0.01em;
    margin-bottom: 20px;
}

.about-text p {
    font-size: 15px;
    color: #444444;
    line-height: 1.9;
    font-weight: 300;
    margin-bottom: 16px;
}

/* =============================================
   KONTAKT
   ============================================= */
.contact-content {
    display: flex;
    justify-content: center;
}

.instagram-btn {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    padding: 18px 44px;
    border: 1.5px solid #1A1A1A;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.06em;
    color: #1A1A1A;
    transition: background 0.3s ease, color 0.3s ease;
}

.instagram-btn:hover {
    background: #1A1A1A;
    color: white;
}

/* =============================================
   FOOTER
   ============================================= */
footer {
    text-align: center;
    padding: 40px;
    font-size: 11px;
    color: #AAAAAA;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border-top: 1px solid #EFEFEF;
}

/* =============================================
   LIGHTBOX — Vollbild-Fotoansicht
   ============================================= */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.94);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    opacity: 1;
    pointer-events: all;
}

/* Wrapper um Bild + Wasserzeichen — schrumpft auf Bildgröße */
.lightbox-photo-wrapper {
    position: relative;
    line-height: 0;
    max-width: 90vw;
    max-height: 88vh;
}

#lightbox-img {
    display: block;
    max-width: 90vw;
    max-height: 88vh;
    object-fit: contain;
    user-select: none;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 24px;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-size: 26px;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s ease;
    padding: 8px;
}

.lightbox-close:hover { color: white; }

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 52px;
    cursor: pointer;
    line-height: 1;
    padding: 20px 16px;
    transition: color 0.2s ease;
    user-select: none;
}

.lightbox-prev { left: 10px; }
.lightbox-next { right: 10px; }
.lightbox-prev:hover,
.lightbox-next:hover { color: white; }

.lightbox-watermark {
    position: absolute;
    bottom: 10px;
    right: 12px;
    width: 80px;
    height: auto;
    filter: invert(1);
    opacity: 0.55;
    pointer-events: none;
    z-index: 10;
}

/* =============================================
   SESSION-SEITEN (sessions/fussball-1.html usw.)
   ============================================= */

/* Nav ist auf Session-Seiten immer weiß (kein Hero darunter) */
.session-page #navbar {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.07);
}

.session-page #navbar .nav-logo img {
    filter: invert(0);
}

.session-page #navbar .nav-link {
    color: #1A1A1A;
}

.session-page #navbar .hamburger span {
    background: #1A1A1A;
}

.session-header {
    padding: 140px 40px 60px;
    text-align: center;
    border-bottom: 1px solid #EFEFEF;
    margin-bottom: 12px;
}

.session-back {
    display: inline-block;
    margin-bottom: 32px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #888888;
    transition: color 0.2s ease;
}

.session-back:hover { color: #1A1A1A; }

.session-title {
    font-size: clamp(28px, 5vw, 54px);
    font-weight: 300;
    letter-spacing: -0.02em;
}

.session-meta {
    margin-top: 12px;
    font-size: 13px;
    color: #888888;
    font-weight: 300;
    letter-spacing: 0.05em;
}

.session-description {
    margin-top: 20px;
    font-size: 15px;
    color: #555555;
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    font-weight: 300;
}

/* Foto-Raster auf Session-Seiten */
.session-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 240px; /* Grundhöhe einer Reihe */
    gap: 8px;
    padding: 20px 40px 100px;
    max-width: 1400px;
    margin: 0 auto;
}

.session-photo {
    overflow: hidden;
    cursor: pointer;
    position: relative; /* nötig damit ::after richtig positioniert wird */
}

/* Hochformat-Fotos — automatisch erkannt per JS, spannen 2 Reihen */
.session-photo--portrait {
    grid-row: span 2;
}

.session-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
}

.session-photo:hover img {
    transform: scale(1.03);
}

/* Wasserzeichen — Logo wird automatisch auf jedes Foto gelegt */
.session-photo::after {
    content: '';
    position: absolute;
    bottom: 10px;
    right: 10px;
    width: 80px;
    height: 40px;
    background-image: url('logo.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: right bottom;
    filter: invert(1) opacity(0.45);
    pointer-events: none; /* Klick geht durch zum Foto/Lightbox */
    z-index: 2;
}

/* =============================================
   ALLE AUFNAHMEN — Vollständige Feed-Seite
   ============================================= */
.alle-aufnahmen-feed {
    padding: 20px 40px 100px;
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .alle-aufnahmen-feed {
        padding: 20px 20px 60px;
    }
}

/* =============================================
   SCROLL-ANIMATION — Elemente gleiten beim Scrollen ein
   ============================================= */
.fade-in {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.75s ease, transform 0.75s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =============================================
   TABLET (max-width: 1024px)
   ============================================= */
@media (max-width: 1024px) {
    .highlights-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .session-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 200px;
    }

    .feed-item {
        gap: 40px;
    }
}

/* =============================================
   MOBILE (max-width: 768px)
   ============================================= */
@media (max-width: 768px) {

    /* Nav */
    #navbar {
        padding: 0 20px;
        height: 60px;
    }

    .nav-logo img {
        height: 30px;
    }

    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        align-items: center;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease, box-shadow 0.4s ease;
    }

    .nav-links.open {
        max-height: 380px;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    }

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-link {
        display: block;
        padding: 16px;
        color: #1A1A1A !important;
        font-size: 13px;
        border-bottom: 1px solid #F2F2F2;
    }

    .nav-link::after { display: none; }

    /* Sections */
    .section {
        padding: 70px 20px;
    }

    .section-header {
        margin-bottom: 40px;
    }

    /* Filmstreifen auf Mobile: weniger Neigung */
    .filmstrip {
        transform: rotate(-2deg) scale(1.06);
        gap: 3px;
    }

    .strip-track {
        gap: 3px;
        animation-duration: 22s;
    }

    .strip--reverse .strip-track {
        animation-duration: 26s;
    }

    .strip-track--slow {
        animation-duration: 30s;
    }

    /* Highlights: 2 Spalten auf Mobile */
    .highlights-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
    }

    /* Feed: gestapelt */
    .feed {
        gap: 56px;
    }

    .feed-item {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* Reihenfolge zurücksetzen für Mobile (Bild immer oben) */
    .feed-item--reverse .feed-image {
        grid-column: 1;
        grid-row: 1;
    }

    .feed-item--reverse .feed-text {
        grid-column: 1;
        grid-row: 2;
    }

    /* Galerie: 1 Spalte */
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .gallery-card--wide {
        grid-column: span 1;
        aspect-ratio: 3 / 2;
    }

    /* About: gestapelt */
    .about-container {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .about-image {
        aspect-ratio: 3 / 2;
    }

    /* Galerie-Overlay auf Mobile immer sichtbar (kein Hover auf Touch) */
    .gallery-card-overlay {
        background: rgba(0, 0, 0, 0.3);
    }

    .gallery-card-title,
    .gallery-card-btn {
        opacity: 1;
        transform: translateY(0);
    }

    /* Session */
    .session-header {
        padding: 90px 20px 40px;
    }

    .session-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 150px;
        gap: 6px;
        padding: 16px 20px 60px;
    }

    /* Lightbox Pfeile enger */
    .lightbox-prev { left: 4px; padding: 12px 8px; }
    .lightbox-next { right: 4px; padding: 12px 8px; }

    /* Instagram Button */
    .instagram-btn {
        padding: 16px 28px;
        font-size: 12px;
    }
}

/* =============================================
   SEHR KLEINE SCREENS (max-width: 400px)
   ============================================= */
@media (max-width: 400px) {
    .highlights-grid {
        grid-template-columns: 1fr;
    }
}