/* ===========================================================================
   POSTER DESIGN · Aufbau wie die Ad-Alliance-Seite
   Intro (Text links, Bilder rechts) -> Panels (Bilder links, Text rechts)
   -> Meta-Zeile -> Kontakt -> Footer.
   Alles hängt am selben Seitenrand wie die Navbar (--page-x).
   =========================================================================== */

@import url("https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible+Next:wght@400;500;700&family=Bricolage+Grotesque:opsz,wght@12..96,400..800&display=swap");

:root {
    --paper: #F3F4FA;
    --surface: #FFFFFF;
    --ink: #16172E;
    --ink-soft: #4A4C66;
    --line: #D9DBEA;
    --blue: #0004E0;
    --on-blue: #FFFFFF;
    --blue-tint: #E4E5FF;
    --band: #0004E0;
    --on-band: #FFFFFF;

    --font-display: 'Bricolage Grotesque', 'Helvetica Neue', Arial, sans-serif;
    --font-body: 'Atkinson Hyperlegible Next', 'Segoe UI', system-ui, sans-serif;

    --page-x: clamp(2rem, 6vw, 9rem);
    --header-h: 7.6rem;
    --radius-md: 1.4rem;
    --radius-lg: 2.4rem;

    /* alte Namen, falls andere Skripte sie nutzen */
    --bg-color: var(--paper);
    --text-color: var(--ink);
    --main-color: var(--blue);
    --white-color: var(--surface);
    --border: var(--line);
}

.dark-mode {
    --paper: #0B0C24;
    --surface: #14163A;
    --ink: #E8E9F7;
    --ink-soft: #A9ABC9;
    --line: #2A2D5A;
    --blue: #2f34d4;
    --on-blue: #0B0C24;
    --blue-tint: #1D2060;
    --band: #2f34d4;
    --on-band: #FFFFFF;
}

/* ---------- Basis ---------- */

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

html {
    font-size: 62.5%;
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-h);
}

body {
    font-family: var(--font-body);
    font-size: 1.7rem;
    line-height: 1.6;
    color: var(--ink);
    background: var(--paper);
    overflow-x: clip;
    transition: background-color .3s ease, color .3s ease;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

button {
    font: inherit;
    color: inherit;
    background: none;
    border: 0;
    cursor: pointer;
}

:focus-visible {
    outline: 3px solid var(--blue);
    outline-offset: 3px;
    border-radius: 6px;
}

.content-width {
    margin-left: var(--page-x);
    margin-right: var(--page-x);
}

/* ---------- Header (wie auf den anderen Seiten) ---------- */

.header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    height: var(--header-h);
    padding: 0 var(--page-x);
    display: flex;
    align-items: center;
    gap: 2.4rem;
    transition: background-color .3s ease, box-shadow .3s ease;
}

.header.sticky {
    background: color-mix(in srgb, var(--paper) 85%, transparent);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    box-shadow: 0 1px 0 var(--line);
}

.logo {
    margin-right: auto;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 2.6rem;
    letter-spacing: -0.05em;
    color: var(--blue);
}

#btn2,
#darkMode-icon {
    flex-shrink: 0;
    width: 4.2rem;
    height: 4.2rem;
    display: grid;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 50%;
    color: var(--ink);
    transition: border-color .2s ease, color .2s ease;
}

#btn2 { font-size: 2.2rem; margin-right: -1.2rem; }
#darkMode-icon { font-size: 2rem; }

#btn2:hover { border-color: var(--blue); color: var(--blue); }
#darkMode-icon:hover { border-color: var(--ink); }

#menu-icon {
    display: none;
    font-size: 3.2rem;
    color: var(--ink);
}

.navbar {
    display: flex;
    gap: 3.2rem;
}

.navbar a {
    position: relative;
    padding: .4rem 0;
    font-size: 1.6rem;
    font-weight: 500;
    color: var(--ink);
    transition: color .2s ease;
}

.navbar a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -.2rem;
    height: 2px;
    background: var(--blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s ease;
}

.navbar a:hover::after,
.navbar a.active::after { transform: scaleX(1); }

.navbar a.active { color: var(--blue); }

.lang-switch {
    display: flex;
    align-items: center;
    padding: .3rem;
    border: 1px solid var(--line);
    border-radius: 999px;
}

.lang-switch .lang-option {
    padding: .5rem 1.1rem;
    border-radius: 999px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--ink-soft);
    transition: background-color .2s ease, color .2s ease;
}

.lang-switch .lang-option:hover { color: var(--ink); }

.lang-switch .lang-option.active {
    background: var(--ink);
    color: var(--paper);
}

.lang-switch .lang-sep { display: none; }

/* ---------- Typografie ---------- */

h1, h2, h3 {
    font-family: var(--font-display);
    color: var(--ink);
    text-align: left;
}

h1 span, h2 span { color: var(--blue); }

h1 {
    font-size: clamp(4rem, 4.6vw, 6rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.035em;
}

h2 {
    margin-bottom: 2.4rem;
    font-size: clamp(3rem, 3.4vw, 4.4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

h3 {
    margin-bottom: 1.2rem;
    font-size: clamp(2rem, 1.8vw, 2.4rem);
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* ---------- Bilder: Rundung + Hover ---------- */

.intro-media a,
.pd-posters a {
    display: block;
    overflow: hidden;
    border-radius: var(--radius-md);
    background: var(--blue-tint);
}

.intro-media img,
.pd-posters img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}

.intro-media a:hover img,
.pd-posters a:hover img {
    transform: scale(1.04);
}

/* ---------- Intro ---------- */

.intro-row {
    display: flex;
    align-items: flex-start;
    gap: 4rem;
    margin-top: calc(var(--header-h) + 8rem);
    margin-bottom: 10rem;
}

.intro-text {
    flex: 0 0 51%;
    min-width: 0;
}

.intro-copy p {
    max-width: 66ch;
    margin-top: 2rem;
    font-size: 1.65rem;
    line-height: 1.7;
    color: var(--ink);
}

/* Lagepläne: so groß wie vorher (bis 57vh hoch). Passen sie nicht
   nebeneinander, stehen sie automatisch untereinander, statt zu
   schrumpfen. */
.intro-media {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 4.3rem;
    align-items: flex-start;
    margin-top: 1rem;
}

.intro-media a {
    flex: 0 1 auto;
    min-width: 0;
    max-width: 100%;
    background: none;
}

.intro-media img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 57vh;
    border-radius: var(--radius-md);
}

/* ---------- Tags ---------- */

.projekt-tags-header {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    margin-top: 2.4rem;
}

.tag {
    padding: .4rem 1.2rem;
    border-radius: 999px;
    font-size: 1.25rem;
    font-weight: 500;
    background: var(--blue-tint);
    border: 1px solid transparent;
    color: var(--blue);
}

.tag-highlight {
    background: transparent;
    border-color: var(--line);
    color: var(--ink-soft);
}

/* ---------- Panels (wie die Showcases auf der Ad-Alliance-Seite) ---------- */

.pd-section {
    margin-bottom: 8rem;
}

.pd-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 4.8rem;
    align-items: start;
    padding: 3.5rem 4rem;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
}

.pd-text p {
    font-size: 1.5rem;
    line-height: 1.75;
    color: var(--ink-soft);
}

/* Poster neben "Allgemeines zum Modul":
   erstes Poster groß über die volle Breite, die anderen zwei darunter */
.pd-posters {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.6rem;
}

.pd-posters a:first-child {
    grid-column: 1 / -1;
}

/* ---------- Kompendium (Größe, Pulsieren und Hover wie bisher) ---------- */

.pd-panel--kompendium {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
}

.kompendium-link {
    display: inline-block;
    max-width: 23rem;
}

.pixidoppelseite {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
    animation: kompendiumPulse 2.3s ease-in-out infinite;
    transition: transform 0.3s ease;
}

.kompendium-link:hover .pixidoppelseite {
    animation-play-state: paused;
    transform: scale(1.08);
}

@keyframes kompendiumPulse {
    0%, 100% { transform: scale(1); }
    50%      { transform: scale(1.05); }
}

/* ---------- Meta-Zeile ---------- */

.meta-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    margin-top: 0;
    margin-bottom: 0;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.meta-item {
    min-width: 0;
    padding: 2rem 2.4rem;
    background: var(--surface);
}

.meta-label {
    margin-bottom: .4rem;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--blue);
}

.meta-value {
    font-size: 1.6rem;
    font-weight: 500;
    color: var(--ink);
}

/* ---------- Kontakt + Footer (wie auf den anderen Seiten) ---------- */

.contact {
    margin-top: 17rem;
    padding: 12rem var(--page-x) 10rem;
    border-radius: 4rem 4rem 0 0;
    background: var(--band);
    color: var(--on-band);
}

.contact .contact-heading {
    margin: 0 0 3.2rem;
    font-size: clamp(4rem, 5.5vw, 6.4rem);
    line-height: 1;
    letter-spacing: -0.035em;
    color: inherit;
}

.contact .contact-heading span { color: inherit; }

.contact-mail {
    display: inline-block;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(0.7rem, 1.7vw, 3.1rem);
    line-height: 1.1;
    letter-spacing: -0.03em;
    overflow-wrap: anywhere;
    opacity: .85;
    transition: opacity .2s ease;
}

.contact-mail:hover { opacity: 1; }

.contact-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.6rem 3.6rem;
    margin-top: 4rem;
    font-size: 1.8rem;
}

.contact-meta a {
    display: inline-flex;
    align-items: center;
    gap: .8rem;
    opacity: .85;
    transition: opacity .2s ease;
}

.contact-meta a:hover { opacity: 1; }
.contact-meta i { font-size: 2.4rem; }

.contact :focus-visible { outline-color: var(--on-band); }

.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2.4rem var(--page-x);
    background: var(--band);
    color: var(--on-band);
    border-top: 1px solid color-mix(in srgb, var(--on-band) 20%, transparent);
    font-size: 1.4rem;
}

.footer-iconTop a {
    width: 4.4rem;
    height: 4.4rem;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--on-band);
    font-size: 2.2rem;
    transition: transform .25s ease;
}

.footer-iconTop a:hover { transform: translateY(-3px); }
#pfeiloben { color: var(--band); }

.mobile-hint { display: none; }

/* ---------- Responsive ---------- */

/* Intro einspaltig ab 1350px, wie auf der Ad-Alliance-Seite:
   Titel, Lagepläne, Text, Tags */
@media (max-width: 1350px) {
    .intro-row {
        flex-direction: column;
        gap: 2.4rem;
        margin-top: calc(var(--header-h) + 5rem);
        margin-bottom: 7rem;
    }

    .intro-text { display: contents; }

    .intro-row .projekt-titel-wrapper { order: 1; }
    .intro-row .intro-media           { order: 2; width: 100%; margin-top: 0; }
    .intro-row .intro-copy            { order: 3; }
    .intro-row .projekt-tags-header   { order: 4; margin-top: 0; }

    .intro-copy p { margin-top: 0; }
}

/* Panels einspaltig */
@media (max-width: 1100px) {
    .pd-panel,
    .pd-panel--kompendium {
        grid-template-columns: 1fr;
        gap: 3.2rem;
    }

    .pd-posters { max-width: 64rem; }
}

@media (min-width: 1101px) {
    .pd-panel:has(.pd-posters) {
        grid-template-columns: minmax(0, 0.4fr) minmax(0, 1fr);
    }
}

@media (max-width: 900px) {
    .header { gap: 1.2rem; }

    #btn2 { margin-right: 0; }

    #menu-icon { display: block; }

    .navbar {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        display: none;
        flex-direction: column;
        gap: 0;
        padding: 1rem var(--page-x) 2.4rem;
        background: var(--paper);
        border-bottom: 1px solid var(--line);
        box-shadow: 0 1.2rem 2.4rem rgba(22, 23, 46, .08);
    }

    .navbar.active { display: flex; }

    .navbar a {
        padding: 1.4rem 0;
        font-family: var(--font-display);
        font-size: 2.4rem;
        font-weight: 600;
    }

    .navbar a::after { display: none; }

    .contact { border-radius: 2.8rem 2.8rem 0 0; padding-top: 9rem; }
}

@media (max-width: 768px) {
    .pd-section { margin-bottom: 6rem; }

    .pd-panel { padding: 2.4rem; border-radius: 2rem; }

    .pd-text p { font-size: 1.55rem; }

    .meta-row { grid-template-columns: 1fr; }

    .contact { margin-top: 6rem; }
}

@media (max-width: 480px) {
    .lang-switch .lang-option { padding: .4rem .8rem; }
    #darkMode-icon, #btn2 { width: 3.8rem; height: 3.8rem; }

    .intro-media { gap: 1.2rem; }
    .pd-posters  { gap: 1rem; }

    .footer {
        flex-direction: column-reverse;
        gap: 1.6rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .pixidoppelseite { animation: none; }
    *, *::before, *::after { transition-duration: .01ms !important; }
}

/* ---------- Zwei Panels untereinander ---------- */

.pd-panel + .pd-panel {
    margin-top: 2.4rem;
}

/* Panel mit Bildern oben über die volle Breite, Text darunter */
.pd-panel.pd-panel--stack {
    grid-template-columns: 1fr;
    gap: 3.2rem;
}

.pd-panel--stack .pd-text p {
    max-width: 140ch;
}

/* ---------- Outdoor-Poster + Detail-Kachel ----------
   Spaltenverhältnis 1.6 : 1 - größere erste Zahl = Outdoor-Poster breiter */

.pd-zoom-pair {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    gap: 2.3rem;
}

.pd-zoom-pair a {
    display: block;
    overflow: hidden;
    border-radius: var(--radius-md);
    background: var(--blue-tint);
}

.pd-zoom-pair .pd-poster-hero img {
    width: 100%;
    height: auto;
    transition: transform .4s ease;
}

.pd-zoom-pair .pd-poster-hero:hover img {
    transform: scale(1.04);
}

/* ---------- Detail-Kachel: Delfin-Poster herangezoomt ----------
   --zoom        Zoomstufe im Ruhezustand
   --zoom-hover  Zoomstufe beim Drüberfahren
   --zx / --zy   Startausschnitt (0% = links/oben, 100% = rechts/unten) */

.pd-poster-detail {
    --zoom: 1.3;
    --zoom-hover: 2.7;
    --zx: 50%;
    --zy: 45%;

    position: relative;
    cursor: zoom-in;
}

.pd-poster-detail img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(var(--zoom));
    transform-origin: var(--zx) var(--zy);
    transition: transform .5s ease, transform-origin .15s ease-out;
}

.pd-poster-detail:hover img {
    transform: scale(var(--zoom-hover));
}

.pd-detail-hint {
    position: absolute;
    left: 1.2rem;
    bottom: 1.2rem;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem 1.1rem;
    border-radius: 999px;
    background: rgba(22, 23, 46, .55);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    color: #fff;
    font-size: 1.3rem;
    font-weight: 700;
    pointer-events: none;
    transition: opacity .25s ease;
}

.pd-detail-hint span { color: inherit; }
.pd-detail-hint i { font-size: 1.6rem; }

.pd-poster-detail:hover .pd-detail-hint { opacity: 0; }

/* Schmale Bildschirme: Outdoor-Poster und Detail untereinander */
@media (max-width: 600px) {
    .pd-zoom-pair {
        grid-template-columns: 1fr;
    }

    .pd-poster-detail {
        aspect-ratio: 4 / 3;
    }
}

@media (prefers-reduced-motion: reduce) {
    .pd-poster-detail img { transition: none; }
}