/* ═══════════════════════════════════════════════════════════
   StuKu Gefell – Premium Design System
   Vibe: Editorial Luxury · Font: Plus Jakarta Sans
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

/* ── Design Tokens ───────────────────────────────────────── */
:root {
    --stuku-primary:    #1a3a5c;
    --stuku-accent:     #c8a84b;
    --stuku-accent-dim: #a88b38;
    --stuku-cream:      #fdfbf7;
    --stuku-warm:       #f5f0e8;
    --stuku-light:      #f5f0e8;
    --stuku-ink:        #1c1c1e;
    --stuku-muted:      #6b6b6b;

    /* Double-Bezel system */
    --bezel-radius:       1.75rem;
    --bezel-inner-radius: calc(1.75rem - 6px);

    /* Motion */
    --ease-spring: cubic-bezier(0.32, 0.72, 0, 1);
    --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
    --dur-fast:    160ms;   /* Button-Press, kleine Feedback-Elemente */
    --dur-hover:   220ms;   /* Hover-Effekte auf Cards, Icons, Thumbs */
    --dur-base:    350ms;   /* Modals, Drawer, bedeutsame Übergänge */
    --dur-slow:    600ms;   /* Scroll-Reveal, dekorative Animationen */
}

/* ── Base ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    color: var(--stuku-ink);
    background: var(--stuku-cream);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.65;
}

/* ── Top Bar ─────────────────────────────────────────────── */
.topbar {
    background: var(--stuku-primary);
    color: rgba(255,255,255,.7);
    font-size: .78rem;
    font-weight: 500;
    padding: .45rem 0;
    letter-spacing: .01em;
}
.topbar a { color: rgba(255,255,255,.8); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
.topbar a:hover { color: var(--stuku-accent); }

/* ── Floating Pill Navbar ────────────────────────────────── */
.site-navbar {
    background: transparent !important;
    box-shadow: none !important;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1030;
}

.navbar-island {
    background: rgba(253,251,247,.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(26,58,92,.1);
    border-radius: 999px;
    padding: .5rem .75rem .5rem 1.25rem;
    margin: .75rem auto;
    max-width: 900px;
    transition: background var(--dur-base) var(--ease-out),
                box-shadow var(--dur-base) var(--ease-out);
}
.navbar-island:hover {
    background: rgba(253,251,247,.97);
    box-shadow: 0 8px 32px rgba(26,58,92,.1), 0 1px 0 rgba(255,255,255,.8) inset;
}

.navbar-brand-text { line-height: 1.2; }
.navbar-brand-text .brand-main {
    font-size: 1rem;
    font-weight: 800;
    color: var(--stuku-primary);
    letter-spacing: -.4px;
}
.navbar-brand-text .brand-sub {
    font-size: .62rem;
    color: var(--stuku-accent);
    letter-spacing: 1.2px;
    text-transform: uppercase;
    font-weight: 600;
}

.site-navbar .nav-link {
    color: var(--stuku-ink) !important;
    font-weight: 600;
    font-size: .82rem;
    padding: .35rem .7rem !important;
    border-radius: 999px;
    letter-spacing: .01em;
    transition: background var(--dur-fast) var(--ease-out),
                color var(--dur-fast) var(--ease-out);
}
.site-navbar .nav-link:hover { background: rgba(26,58,92,.07); color: var(--stuku-primary) !important; }
.site-navbar .nav-link.active { background: rgba(26,58,92,.09); color: var(--stuku-primary) !important; }

/* CTA-Pill in Navbar */
.site-navbar .nav-cta {
    background: var(--stuku-primary) !important;
    color: #fff !important;
    border-radius: 999px;
    padding: .4rem 1rem !important;
    margin-left: .25rem;
    transition: background var(--dur-fast) var(--ease-out),
                transform var(--dur-fast) var(--ease-out);
}
.site-navbar .nav-cta:active { transform: scale(0.97); }
@media (hover: hover) and (pointer: fine) {
    .site-navbar .nav-cta:hover { background: #0f2540 !important; color: #fff !important; transform: scale(1.03); }
}
.site-navbar .nav-cta.active { background: var(--stuku-primary) !important; color: #fff !important; }

/* Dropdown */
.site-navbar .dropdown-menu {
    border: 1px solid rgba(26,58,92,.1);
    border-radius: 1.1rem;
    box-shadow: 0 12px 40px rgba(26,58,92,.12);
    padding: .5rem;
    background: rgba(253,251,247,.98);
    backdrop-filter: blur(20px);
}
.site-navbar .dropdown-item {
    border-radius: .6rem;
    padding: .5rem .85rem;
    font-size: .85rem;
    font-weight: 500;
    color: var(--stuku-ink);
    transition: background var(--dur-fast);
}
.site-navbar .dropdown-item:hover { background: rgba(26,58,92,.07); color: var(--stuku-primary); }
.site-navbar .dropdown-divider { border-color: rgba(26,58,92,.08); margin: .3rem .5rem; }

/* Mobile nav toggler */
.navbar-toggler {
    border: 1px solid rgba(26,58,92,.15) !important;
    border-radius: 999px !important;
    padding: .35rem .6rem;
    transition: background var(--dur-fast);
}
.navbar-toggler:focus { box-shadow: none; }
.navbar-toggler:hover { background: rgba(26,58,92,.06); }

/* ── Double-Bezel Card Architecture ──────────────────────── */
.bezel {
    padding: 6px;
    background: rgba(26,58,92,.04);
    border: 1px solid rgba(26,58,92,.08);
    border-radius: var(--bezel-radius);
}
.bezel-inner {
    background: #fff;
    border-radius: var(--bezel-inner-radius);
    box-shadow: inset 0 1px 1px rgba(255,255,255,.9);
    overflow: hidden;
}

/* Elevated card variant */
.card-premium {
    background: #fff;
    border-radius: var(--bezel-radius);
    border: 1px solid rgba(26,58,92,.07);
    box-shadow: 0 2px 8px rgba(26,58,92,.04),
                0 16px 48px rgba(26,58,92,.06);
    transition: transform var(--dur-hover) var(--ease-spring),
                box-shadow var(--dur-hover) var(--ease-spring);
    overflow: hidden;
}
@media (hover: hover) and (pointer: fine) {
    .card-premium:hover {
        transform: translateY(-3px);
        box-shadow: 0 4px 16px rgba(26,58,92,.06),
                    0 24px 64px rgba(26,58,92,.1);
    }
}

/* ── Section Labels & Titles ─────────────────────────────── */
.section-label {
    font-size: .68rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--stuku-accent);
    font-weight: 700;
    display: inline-block;
    background: rgba(200,168,75,.1);
    border: 1px solid rgba(200,168,75,.25);
    border-radius: 999px;
    padding: .2rem .75rem;
    margin-bottom: .6rem;
}

.section-title {
    font-size: clamp(1.7rem, 3.5vw, 2.4rem);
    font-weight: 800;
    color: var(--stuku-primary);
    letter-spacing: -.03em;
    line-height: 1.15;
}

.section-heading {
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    font-weight: 800;
    color: var(--stuku-primary);
    letter-spacing: -.03em;
    line-height: 1.2;
    display: inline-block;
    margin-bottom: 1rem;
}
.section-heading::after {
    content: '';
    display: block;
    width: 40px; height: 2px;
    background: var(--stuku-accent);
    margin-top: .5rem;
    border-radius: 2px;
}
.section-heading.centered::after { margin: .5rem auto 0; }

/* ── Premium Buttons ─────────────────────────────────────── */
.btn-stuku {
    background: var(--stuku-primary);
    color: #fff;
    border: none;
    font-weight: 700;
    font-size: .85rem;
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    padding: .6rem 1.6rem;
    border-radius: 999px;
    letter-spacing: .01em;
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    cursor: pointer;
    transition: background var(--dur-fast) var(--ease-out),
                transform var(--dur-fast) var(--ease-out),
                box-shadow var(--dur-fast) var(--ease-out);
}
.btn-stuku:hover { background: #0f2540; color: #fff; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(26,58,92,.25); }
.btn-stuku:active { transform: scale(.98); }

/* Button-in-Button trailing icon */
.btn-stuku .btn-arrow {
    width: 1.5rem; height: 1.5rem;
    background: rgba(255,255,255,.15);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: .72rem;
    transition: transform var(--dur-fast) var(--ease-out),
                background var(--dur-fast);
}
.btn-stuku:hover .btn-arrow { transform: translate(2px,-1px) scale(1.1); background: rgba(255,255,255,.22); }

.btn-stuku-outline {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255,255,255,.4);
    font-weight: 700;
    font-size: .85rem;
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    padding: .6rem 1.6rem;
    border-radius: 999px;
    display: inline-flex; align-items: center; gap: .5rem;
    transition: background var(--dur-fast) var(--ease-out),
                border-color var(--dur-fast),
                transform var(--dur-fast);
}
.btn-stuku-outline:hover { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.7); color: #fff; transform: translateY(-1px); }
.btn-stuku-outline:active { transform: scale(.98); }

.btn-accent {
    background: var(--stuku-accent);
    color: #fff;
    border: none;
    font-weight: 700;
    font-size: .85rem;
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    padding: .6rem 1.6rem;
    border-radius: 999px;
    display: inline-flex; align-items: center; gap: .5rem;
    cursor: pointer;
    transition: background var(--dur-fast) var(--ease-out),
                transform var(--dur-fast),
                box-shadow var(--dur-fast);
}
.btn-accent:hover { background: var(--stuku-accent-dim); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(200,168,75,.35); }
.btn-accent:active { transform: scale(.98); }

/* ── Scroll Entry Animations ─────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--dur-slow) var(--ease-out),
                transform var(--dur-slow) var(--ease-out);
    will-change: transform, opacity;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 180ms; }
.reveal-delay-3 { transition-delay: 280ms; }
.reveal-delay-4 { transition-delay: 380ms; }
.reveal-delay-5 { transition-delay: 480ms; }

/* ── Hero Section ────────────────────────────────────────── */
.hero-slide {
    position: relative;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-size: cover;
    background-position: center;
}
.hero-slide::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(to bottom,
        rgba(10,24,40,.55) 0%,
        rgba(10,24,40,.3) 50%,
        rgba(10,24,40,.65) 100%);
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 2rem 1rem;
    max-width: 780px;
    margin: 0 auto;
}
.hero-content h1 {
    font-size: clamp(2.4rem, 6vw, 4.2rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: -.04em;
    line-height: 1.1;
    text-shadow: 0 2px 24px rgba(0,0,0,.2);
    margin-bottom: 1rem;
}
.hero-content p {
    font-size: clamp(.95rem, 2vw, 1.15rem);
    color: rgba(255,255,255,.82);
    font-weight: 400;
    max-width: 520px;
    margin: 0 auto 2rem;
    line-height: 1.65;
}
.slide-label {
    display: inline-block;
    font-size: .68rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--stuku-accent);
    font-weight: 700;
    background: rgba(200,168,75,.15);
    border: 1px solid rgba(200,168,75,.3);
    border-radius: 999px;
    padding: .25rem .9rem;
    margin-bottom: 1rem;
}
/* Carousel controls */
.hero-carousel .carousel-control-prev,
.hero-carousel .carousel-control-next {
    width: 3rem; height: 3rem;
    top: 50%; transform: translateY(-50%);
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 50%;
    transition: background var(--dur-fast), border-color var(--dur-fast);
}
.hero-carousel .carousel-control-prev:hover,
.hero-carousel .carousel-control-next:hover {
    background: rgba(255,255,255,.22);
    border-color: rgba(255,255,255,.4);
}
.hero-carousel .carousel-control-prev { left: 1.5rem; }
.hero-carousel .carousel-control-next { right: 1.5rem; }
.hero-carousel .carousel-indicators {
    bottom: 1.5rem;
    gap: .35rem;
}
.hero-carousel .carousel-indicators [data-bs-target] {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: rgba(255,255,255,.5);
    border: none;
    transition: width var(--dur-base) var(--ease-spring),
                background var(--dur-fast);
}
.hero-carousel .carousel-indicators .active {
    width: 22px;
    border-radius: 3px;
    background: #fff;
}

/* ── Stats Strip ─────────────────────────────────────────── */
.stats-section {
    background: var(--stuku-primary);
    padding: 4rem 0;
}
.stat-item { padding: 1rem; text-align: center; }
.stat-number {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--stuku-accent);
    letter-spacing: -.04em;
    line-height: 1;
    margin-bottom: .3rem;
}
.stat-label {
    font-size: .82rem;
    font-weight: 600;
    color: rgba(255,255,255,.65);
    letter-spacing: .04em;
    text-transform: uppercase;
}

/* ── Activity Cards ──────────────────────────────────────── */
.activity-card {
    background: #fff;
    border-radius: var(--bezel-radius);
    border: 1px solid rgba(26,58,92,.07);
    padding: 1.75rem;
    transition: transform var(--dur-hover) var(--ease-spring),
                box-shadow var(--dur-hover) var(--ease-spring);
    height: 100%;
}
@media (hover: hover) and (pointer: fine) {
    .activity-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 12px 40px rgba(26,58,92,.1);
    }
}
.card-icon {
    width: 2.75rem; height: 2.75rem;
    background: rgba(200,168,75,.1);
    border-radius: .85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    color: var(--stuku-accent);
    transition: background var(--dur-fast), transform var(--dur-hover) var(--ease-spring);
}
@media (hover: hover) and (pointer: fine) {
    .activity-card:hover .card-icon { background: rgba(200,168,75,.18); transform: scale(1.08) rotate(-3deg); }
}

/* ── Gallery Thumbs ──────────────────────────────────────── */
.gallery-thumb {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    border-radius: 1rem;
    display: block;
    transition: transform var(--dur-hover) var(--ease-spring),
                filter var(--dur-hover);
}
@media (hover: hover) and (pointer: fine) {
    .gallery-thumb:hover { transform: scale(1.03); filter: brightness(.88); }
}

/* ── About Image Badge ───────────────────────────────────── */
.about-img-wrap { position: relative; }
.about-img-badge {
    position: absolute;
    bottom: -1rem;
    right: -1rem;
    background: var(--stuku-accent);
    border-radius: 1.25rem;
    padding: 1rem 1.4rem;
    text-align: center;
    box-shadow: 0 8px 24px rgba(200,168,75,.3);
}
.ab-num {
    font-size: 1.8rem;
    font-weight: 800;
    color: #fff;
    line-height: 1;
    letter-spacing: -.04em;
}
.ab-txt { font-size: .7rem; color: rgba(255,255,255,.85); font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }

/* ── CTA Section ─────────────────────────────────────────── */
.cta-section {
    background: linear-gradient(135deg, var(--stuku-primary) 0%, #1e4d7a 100%);
    position: relative;
    overflow: hidden;
    padding: 6rem 0;
}
.cta-section::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at 70% 50%, rgba(200,168,75,.12) 0%, transparent 65%);
    pointer-events: none;
}

/* ── Events Section ──────────────────────────────────────── */
.events-home-section { background: var(--stuku-warm); padding: 5rem 0; }

/* ── Footer ──────────────────────────────────────────────── */
.site-footer {
    background: var(--stuku-primary);
    color: rgba(255,255,255,.7);
    padding-top: 5rem;
    padding-bottom: 2rem;
}
.site-footer h6 { color: #fff; font-weight: 700; letter-spacing: .02em; margin-bottom: 1rem; }
.site-footer a { color: rgba(255,255,255,.7); text-decoration: none; transition: color var(--dur-fast); }
.site-footer a:hover { color: var(--stuku-accent); }
.site-footer .footer-divider { border-color: rgba(255,255,255,.1); margin: 2rem 0 1.5rem; }

/* ── Page Content (CMS rich text) ────────────────────────── */
.page-content { color: var(--stuku-muted); line-height: 1.78; }
.page-content p { margin-bottom: .9rem; }
.page-content h2, .page-content h3, .page-content h4 {
    color: var(--stuku-primary); font-weight: 700; margin-top: 1.6rem;
}
.page-content ul, .page-content ol { padding-left: 1.5rem; margin-bottom: 1rem; }
.page-content a { color: var(--stuku-accent); }
.page-content strong { color: var(--stuku-ink); font-weight: 700; }
.page-content img { max-width: 100%; height: auto; border-radius: 1rem; margin: 1rem 0; }

/* ── Utilities ───────────────────────────────────────────── */
.bg-stuku-light { background: var(--stuku-warm) !important; }
.text-accent { color: var(--stuku-accent) !important; }
.img-cover { object-fit: cover; width: 100%; }

/* ── Cookie Banner ───────────────────────────────────────── */
#cookieBanner {
    position: fixed; bottom: 1.5rem; left: 50%;
    transform: translateX(-50%);
    z-index: 1080;
    width: min(92%, 600px);
}
.cookie-inner {
    background: rgba(18,30,48,.96);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 1.5rem;
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    box-shadow: 0 16px 48px rgba(0,0,0,.3);
}
.cookie-text { display: flex; align-items: flex-start; gap: .75rem; flex: 1; min-width: 200px; }
.cookie-text, .cookie-text p { font-size: .8rem; color: rgba(255,255,255,.75); margin: 0; }
.cookie-text a { color: var(--stuku-accent); }
.cookie-icon { color: var(--stuku-accent); font-size: 1.1rem; flex-shrink: 0; margin-top: .05rem; }
.cookie-actions { flex-shrink: 0; }
.btn-cookie-accept {
    background: var(--stuku-accent);
    color: #fff;
    border: none;
    border-radius: 999px;
    padding: .45rem 1.2rem;
    font-size: .8rem;
    font-weight: 700;
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    cursor: pointer;
    transition: background var(--dur-fast);
    white-space: nowrap;
}
.btn-cookie-accept:hover { background: var(--stuku-accent-dim); }
.btn-cookie-accept:active { transform: scale(0.97); }

/* ── Bootstrap overrides ─────────────────────────────────── */
.card { border-radius: var(--bezel-inner-radius); border-color: rgba(26,58,92,.07); }
.form-control {
    border-radius: .75rem;
    border-color: rgba(26,58,92,.15);
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    font-size: .9rem;
    transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.form-control:focus {
    border-color: var(--stuku-accent);
    box-shadow: 0 0 0 3px rgba(200,168,75,.15);
}
.alert { border-radius: 1rem; border: none; font-size: .9rem; }
.badge { font-family: 'Plus Jakarta Sans', system-ui, sans-serif; font-weight: 600; }
.dropdown-menu { font-family: 'Plus Jakarta Sans', system-ui, sans-serif; }

/* Sponsor strip */
.sponsor-home-item { padding: .5rem; border-radius: .75rem; transition: opacity var(--dur-fast); }
.sponsor-home-item:hover { opacity: .75; }
.sponsor-home-item:hover .sponsor-home-logo { filter: grayscale(0%) !important; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 767.98px) {
    .about-img-badge { bottom: -.5rem; right: -.5rem; }
    .hero-slide { min-height: 100dvh; }
    .navbar-island { border-radius: 1.25rem; margin: .5rem .75rem; }
    .cta-section { padding: 4rem 0; }
    .stats-section { padding: 3rem 0; }
    .events-home-section { padding: 3rem 0; }
    .cookie-inner { flex-direction: column; gap: .75rem; }
    .cookie-actions { width: 100%; }
    .btn-cookie-accept { width: 100%; text-align: center; padding: .6rem; }
}