/* ═══════════════════════════════════════════════════════
   Arbeitskreis.css – Seiten 69–73
   ═══════════════════════════════════════════════════════ */

:root {
    --accent: #128c46;
    --accent-dark: #0a5c2e;
    --accent2: #9EC5A8;
    --dark: #1a1a1a;
    --muted: #6b7280;
    --light: #f2f3f4;
    --white: #ffffff;
    --pad: 70px;
}

/* ══ HERO ══ */
.ak-hero {
    background: var(--accent);
    padding: 60px var(--pad) 50px;
    position: relative;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
}

.ak-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
            radial-gradient(ellipse 50% 80% at 100% 50%, rgba(255,255,255,0.07) 0%, transparent 60%),
            radial-gradient(ellipse 30% 50% at 0% 100%, rgba(0,0,0,0.15) 0%, transparent 50%);
}

.ak-hero::after {
    content: 'VDC';
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18rem;
    font-weight: 700;
    color: rgba(255,255,255,0.04);
    letter-spacing: -0.05em;
    line-height: 1;
    pointer-events: none;
}

.ak-hero-inner {
    position: relative;
    z-index: 1;
}

.ak-hero-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.6);
    margin-bottom: 20px;
}

.ak-hero-label::before {
    content: '';
    width: 28px;
    height: 1.5px;
    background: rgba(255,255,255,0.4);
}

.ak-hero-inner h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 0;
    margin-top: 0;
}

.ak-hero-text {
    font-size: 1rem;
    color: rgba(255,255,255,0.75);
    line-height: 1.7;
    max-width: 100%;
    margin-bottom: 32px;
}

.ak-hero-meta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.ak-meta-pill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 0.72rem;
    font-weight: 700;
    color: rgba(255,255,255,0.85);
}

.ak-meta-pill--lock {
    background: rgba(255,255,255,0.18);
    border-color: rgba(255,255,255,0.5);
    color: var(--white);
}

.ak-hero-clip {
    height: 60px;
    background: var(--accent);
    clip-path: polygon(0 0, 100% 0, 100% 100%);
    margin-bottom: -1px;
    width: 100%;
}

/* ══ BODY ══ */
.ak-body {
    padding: 48px var(--pad) 60px;
    background: #e6e7e8;
}

.ak-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 32px;
    align-items: start;
}

/* ══ SECTIONS ══ */
.ak-section {
    background: var(--white);
    border-radius: 14px;
    padding: 28px 30px;
    margin-bottom: 20px;
}

.ak-section-label {
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 8px;
}

.ak-section h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 14px;
}

.ak-section p {
    font-size: 0.88rem;
    color: var(--muted);
    line-height: 1.7;
}

.ak-section p + p { margin-top: 10px; }

/* Themen */
.ak-themen-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 4px;
}

.ak-thema {
    background: var(--light);
    border-radius: 8px;
    padding: 12px 14px;
    font-size: 0.8rem;
    color: var(--dark);
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.ak-thema::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
    margin-top: 5px;
}

/* Mitglieder */
.ak-mitglieder {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.ak-mitglied {
    background: var(--light);
    border-radius: 999px;
    padding: 7px 14px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--dark);
}

/* ══ XR EXPO HIGHLIGHT CARD ══ */
.ak-xrexpo-card {
    display: flex;
    flex-direction: column;
    background: #1a1a1a;
    border-radius: 14px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    margin-bottom: 20px;
    transition: transform 0.25s, box-shadow 0.25s;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    padding: 24px;
    position: relative;
}

.ak-xrexpo-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 80% 20%, rgba(232,0,30,0.2) 0%, transparent 55%),
        linear-gradient(to bottom, transparent 30%, rgba(0,0,0,0.8) 100%);
    pointer-events: none;
}

.ak-xrexpo-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.ak-xrexpo-visual { display: none; }

.ak-xrexpo-badge {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(232,0,30,0.15);
    border: 1px solid rgba(232,0,30,0.25);
    color: #ff8899;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 999px;
    margin-bottom: 12px;
    width: fit-content;
}

.ak-xrexpo-badge::before {
    content: '•';
    font-size: 0.8rem;
}

.ak-xrexpo-body {
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
    position: relative;
    z-index: 1;
}

.ak-xrexpo-label { display: none; }

.ak-xrexpo-body h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.3;
}

.ak-xrexpo-body p {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.65;
}

.ak-xrexpo-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #e8001e;
    color: var(--white);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 8px 18px;
    border-radius: 7px;
    margin-top: 6px;
    width: fit-content;
    transition: background 0.2s;
}

.ak-xrexpo-card:hover .ak-xrexpo-btn {
    background: #b8001a;
    gap: 6px;
}

/* ══ SIDEBAR ══ */
.ak-sidebar-card {
    background: var(--white);
    border-radius: 14px;
    padding: 24px;
    margin-bottom: 16px;
}

.ak-sidebar-label {
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 14px;
}

/* Termine */
.ak-termine { display: flex; flex-direction: column; }

.ak-termin {
    display: grid;
    grid-template-columns: 52px 1fr;
    border-bottom: 1px solid var(--light);
    padding: 12px 0;
    position: relative;
}

.ak-termin:last-child { border-bottom: none; }

.ak-termin::before {
    content: '';
    position: absolute;
    left: 25px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: #e8f5ed;
    z-index: 0;
}

.ak-termin-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
}

.ak-termin-day {
    width: 36px;
    height: 36px;
    background: var(--accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--white);
    flex-shrink: 0;
    text-align: center;
    padding: 2px;
    line-height: 1.2;
}

.ak-termin--past .ak-termin-day {
    background: #d1d5db;
    color: var(--muted);
}

.ak-termin-month {
    font-size: 0.55rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    margin-top: 4px;
    text-align: center;
}

.ak-termin-info { padding-left: 12px; }

.ak-termin-title {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.3;
}

.ak-termin--past .ak-termin-title { color: var(--muted); }

.ak-termin-sub {
    font-size: 0.72rem;
    color: var(--muted);
    margin-top: 3px;
}

.ak-termin-badge {
    display: inline-block;
    background: #e8f5ed;
    color: var(--accent-dark);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 2px 7px;
    border-radius: 999px;
    margin-top: 4px;
}

.ak-termin-badge.past {
    background: var(--light);
    color: var(--muted);
}

/* Kontakt */
.ak-kontakt-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 10px;
}

.ak-kontakt-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
    margin-top: 4px;
}

.ak-kontakt-label { font-size: 0.68rem; color: var(--muted); }
.ak-kontakt-val { font-size: 0.8rem; font-weight: 700; color: var(--dark); }

/* Members notice */
.ak-members-notice {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: #f0fdf4;
    border: 1px solid var(--accent2);
    border-radius: 8px;
    padding: 12px 14px;
    margin-bottom: 14px;
}

.ak-members-notice-icon {
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 1px;
}

.ak-members-notice p { font-size: 0.75rem; color: var(--accent-dark); line-height: 1.5; }
.ak-members-notice a { color: var(--accent); font-weight: 700; text-decoration: none; }

.ak-join-btn {
    display: block;
    background: var(--accent);
    color: var(--white);
    text-align: center;
    font-family: "Frutiger", Arial, sans-serif;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 11px;
    border-radius: 8px;
    text-decoration: none;
    transition: background 0.2s;
}

.ak-join-btn:hover { background: var(--accent-dark); }

.ak-join-btn-sub {
    font-size: 0.68rem;
    color: var(--muted);
    text-align: center;
    margin-top: 6px;
}

/* ══ CTA ══ */
.ak-cta {
    background: var(--accent);
    padding: 60px var(--pad);
    position: relative;
    overflow: hidden;
}

.ak-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 40% 60% at 90% 50%, rgba(255,255,255,0.08) 0%, transparent 55%);
}

.ak-cta-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.ak-cta h2 {
    font-size: clamp(1.3rem, 2.5vw, 1.8rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
}

.ak-cta p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
    margin-top: 8px;
}

.btn-white {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: var(--white);
    color: var(--accent);
    font-family: "Frutiger", Arial, sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
    padding: 13px 28px;
    border-radius: 8px;
    white-space: nowrap;
    transition: background 0.2s, transform 0.15s;
    flex-shrink: 0;
}

.btn-white:hover { background: #f0faf4; transform: translateY(-2px); }

/* ══ RESPONSIVE ══ */
@media (max-width: 1400px) {
    :root { --pad: 40px; }
}

@media (max-width: 1000px) {
    .ak-layout { grid-template-columns: 1fr; }
    .ak-xrexpo-card { grid-template-columns: 1fr; }
    .ak-xrexpo-visual { min-height: 140px; }
}

@media (max-width: 768px) {
    :root { --pad: 20px; }
    .ak-themen-grid { grid-template-columns: 1fr; }
    .ak-cta-inner { flex-direction: column; align-items: flex-start; }
    .ak-hero { padding-top: 50px; padding-bottom: 40px; }
    .ak-hero::after { font-size: 8rem; }
    .ak-body { padding-top: 36px; padding-bottom: 40px; }
}