/* ==========================================================================
   Immobilienstammtisch München – Modernes Public-Layout
   (für Mitglieder-Bereich, Event-Detail, Archiv, About)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Playfair+Display:wght@700;800&display=swap');

:root {
  --bg:         #f7f6f2;
  --surface:    #ffffff;
  --ink:        #0f0f1e;
  --ink-soft:   #4a5160;
  --ink-muted:  #8891a1;
  --line:       #e7e9ef;
  --line-soft:  #f1f3f7;

  --brand:      #0f0f1e;   /* Deep Navy */
  --brand-2:    #1f1f3a;
  --gold:       #c89a3a;   /* Stammtisch Gold */
  --gold-2:     #e9be5f;
  --gold-soft:  #faf3e3;
  --accent:     #667eea;
  --accent-2:   #764ba2;

  --ok:         #19a873;
  --warn:       #d99322;
  --err:        #dd3b3b;

  --radius-sm:  10px;
  --radius:     16px;
  --radius-lg:  22px;
  --shadow-sm:  0 1px 3px rgba(15,15,30,.06);
  --shadow-md:  0 10px 30px -12px rgba(15,15,30,.15);
  --shadow-lg:  0 30px 70px -20px rgba(15,15,30,.3);

  --font-head:  'Playfair Display', Inter, Georgia, serif;
  --font-body:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color .15s; }
a:hover { color: var(--accent-2); }

h1,h2,h3,h4 { color: var(--ink); margin: 0 0 .5em; line-height: 1.2; letter-spacing: -.01em; }
h1 { font-family: var(--font-head); font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; letter-spacing: -.02em; }
h2 { font-family: var(--font-head); font-size: clamp(1.5rem, 3.6vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 700; }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.container.narrow { max-width: 680px; }
.container.medium { max-width: 900px; }

.muted { color: var(--ink-muted); }
.small { font-size: 13px; }
.eyebrow {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .18em;
  text-transform: uppercase; color: var(--gold);
}

/* ============================================================
   Header
   ============================================================ */
.site-header {
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(1.5) blur(10px);
  -webkit-backdrop-filter: saturate(1.5) blur(10px);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50;
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; gap: 16px; max-width: 1180px; margin: 0 auto;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--ink); font-weight: 800; font-family: var(--font-head); font-size: 16px;
}
.brand:hover { text-decoration: none; color: var(--ink); }
.brand-logo { height: 38px; width: auto; }
.brand-text { line-height: 1.1; letter-spacing: .01em; }

.nav-toggle {
  display: inline-flex; flex-direction: column; gap: 4px;
  background: none; border: 0; padding: 8px; cursor: pointer;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s; }

.nav-links { display: none; }
@media (min-width: 860px) {
  .nav-toggle { display: none; }
  .nav-links { display: flex; align-items: center; gap: 6px; }
  .nav-links a { padding: 8px 14px; color: var(--ink-soft); font-weight: 500; border-radius: 8px; font-size: 14px; }
  .nav-links a:hover { background: var(--line-soft); color: var(--ink); text-decoration: none; }
}
.nav-links.open { display: flex; }
@media (max-width: 859px) {
  .nav-links.open {
    position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 12px 20px 20px; gap: 4px;
    box-shadow: var(--shadow-md); border-top: 1px solid var(--line);
  }
  .nav-links.open a { padding: 14px 10px; border-radius: 8px; color: var(--ink-soft); font-weight: 500; }
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px; border-radius: 11px; font-weight: 700; font-size: 15px; border: 0;
  cursor: pointer; text-decoration: none; letter-spacing: .01em;
  transition: transform .12s, background .15s, box-shadow .15s, filter .15s;
}
.btn:active { transform: translateY(0); filter: brightness(.95); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff; box-shadow: 0 8px 20px -8px rgba(102,126,234,.55);
}
.btn-primary:hover { transform: translateY(-1px); color:#fff; text-decoration: none; box-shadow: 0 12px 28px -8px rgba(102,126,234,.65); }

.btn-gold {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-2) 100%);
  color: #fff; box-shadow: 0 8px 20px -8px rgba(200,154,58,.55);
}
.btn-gold:hover { transform: translateY(-1px); color:#fff; text-decoration:none; box-shadow: 0 12px 28px -8px rgba(200,154,58,.65); }

.btn-dark { background: var(--brand); color: #fff; }
.btn-dark:hover { background: var(--brand-2); color:#fff; text-decoration:none; }

.btn-secondary { background: var(--line-soft); color: var(--ink); }
.btn-secondary:hover { background: var(--line); color: var(--ink); text-decoration:none; }

.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--line); }
.btn-ghost:hover { background: var(--line-soft); color: var(--ink); text-decoration: none; }

.btn-danger { background: #fdecec; color: var(--err); }
.btn-danger:hover { background: #fbd5d5; color: var(--err); text-decoration:none; }

.btn-sm { padding: 9px 14px; font-size: 13px; }
.btn-full { width: 100%; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }

/* ============================================================
   Sections & Hero
   ============================================================ */
main { min-height: 50vh; }

.page-hero {
  padding: 64px 0 40px;
  background:
    radial-gradient(800px 400px at 10% 0%, rgba(200,154,58,.08), transparent 60%),
    radial-gradient(700px 400px at 90% 30%, rgba(102,126,234,.08), transparent 60%),
    var(--bg);
  border-bottom: 1px solid var(--line);
}
.page-hero .container { position: relative; }
.page-hero h1 { margin-top: 8px; }
.page-hero .lead { color: var(--ink-soft); font-size: clamp(1rem, 2vw, 1.15rem); max-width: 640px; margin: 16px 0 0; }

/* ============================================================
   Dark Hero (Homepage) – passend zum Auth-Layout
   ============================================================ */
.dark-hero {
  position: relative; overflow: hidden;
  padding: 96px 0 120px;
  color: #fff;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(200,154,58,.22), transparent 60%),
    radial-gradient(900px 500px at 95% 5%, rgba(102,126,234,.28), transparent 55%),
    radial-gradient(800px 700px at 50% 120%, rgba(118,75,162,.25), transparent 60%),
    linear-gradient(180deg, #0a0a18 0%, #14142a 50%, #0a0a18 100%);
}
.dark-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .05;
  background-image:
    linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size: 56px 56px;
}
.dark-hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(500px 300px at 80% 90%, rgba(233,190,95,.1), transparent 70%);
}
.dark-hero .container { position: relative; z-index: 2; }
.dark-hero .eyebrow { color: var(--gold-2); letter-spacing: .22em; font-weight: 700; font-size: 12px; }
.dark-hero h1 {
  color: #fff; font-family: var(--font-head); font-weight: 800;
  font-size: clamp(2.4rem, 6vw, 4.2rem); line-height: 1.05; letter-spacing: -.02em;
  margin: 18px 0 20px; max-width: 900px;
}
.dark-hero h1 .gold-accent {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-2) 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  font-style: italic;
}
.dark-hero .lead {
  color: rgba(255,255,255,.8); font-size: clamp(1.05rem, 2vw, 1.25rem);
  max-width: 640px; margin: 0 0 36px; line-height: 1.6;
}
.dark-hero .actions { display: flex; gap: 12px; flex-wrap: wrap; }

.dark-hero .btn-whatsapp {
  background: #25D366; color: #fff; box-shadow: 0 10px 24px -8px rgba(37,211,102,.55);
}
.dark-hero .btn-whatsapp:hover { background: #1fb655; transform: translateY(-1px); box-shadow: 0 14px 28px -8px rgba(37,211,102,.65); color:#fff; text-decoration:none; }

/* Section auf hellem Hintergrund nach dark-hero – leicht überlappend */
.section.after-dark {
  margin-top: -60px;
  padding-top: 40px;
  position: relative; z-index: 3;
}
.section.after-dark > .container { position: relative; }

/* Dark invert section (dunkler Content-Block zwischen hellen Sektionen) */
.section.dark {
  background:
    radial-gradient(600px 400px at 10% 100%, rgba(200,154,58,.1), transparent 70%),
    linear-gradient(180deg, #14142a 0%, #0f0f1e 100%);
  color: #fff;
}
.section.dark h1, .section.dark h2, .section.dark h3 { color: #fff; }
.section.dark .muted { color: rgba(255,255,255,.6); }
.section.dark .eyebrow { color: var(--gold-2); }

/* Upcoming events feature row (Homepage) */
.feature-row {
  display: grid; gap: 22px; grid-template-columns: 1fr;
}
@media (min-width: 720px) { .feature-row { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .feature-row { grid-template-columns: repeat(3, 1fr); } }

/* CTA Band */
.cta-band {
  background:
    radial-gradient(500px 300px at 20% 0%, rgba(200,154,58,.15), transparent 70%),
    linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
  color: #fff; padding: 56px 32px; border-radius: var(--radius-lg);
  text-align: center; position: relative; overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta-band h2 { color: #fff; font-family: var(--font-head); margin: 0 0 14px; font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
.cta-band p { color: rgba(255,255,255,.75); max-width: 560px; margin: 0 auto 24px; font-size: 1.05rem; }
.cta-band .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* About split on homepage */
.about-split { display: grid; gap: 40px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 880px) { .about-split { grid-template-columns: 1fr 1fr; gap: 64px; } }
.about-split h2 { margin-top: 0; }
.about-split p { color: var(--ink-soft); font-size: 16px; line-height: 1.7; }

.list-bullet { list-style: none; padding: 0; margin: 16px 0 0; }
.list-bullet li {
  padding: 10px 0 10px 32px; position: relative; color: var(--ink-soft);
  border-bottom: 1px solid var(--line-soft);
}
.list-bullet li:last-child { border-bottom: 0; }
.list-bullet li::before {
  content: ""; position: absolute; left: 0; top: 14px; width: 18px; height: 18px;
  border-radius: 50%; background: var(--gold-soft);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c89a3a' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-size: 12px; background-repeat: no-repeat; background-position: center;
}
.list-bullet.bad li::before {
  background: #fdecec;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23dd3b3b' stroke-width='3' stroke-linecap='round'%3E%3Cline x1='18' y1='6' x2='6' y2='18'%3E%3C/line%3E%3Cline x1='6' y1='6' x2='18' y2='18'%3E%3C/line%3E%3C/svg%3E");
}

/* Speaker pill (small row below an event card) */
.speaker-pill { display: inline-flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink-soft); }
.speaker-pill img { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; background: var(--line-soft); }

.section { padding: 56px 0; }
.section.tight { padding: 32px 0; }
.section.alt { background: #fff; }
.section-title { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.section-title h2 { margin: 0; }
.section-title a { font-size: 14px; font-weight: 600; }

/* ============================================================
   Event Cards
   ============================================================ */
.event-grid {
  display: grid; gap: 20px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .event-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .event-grid { grid-template-columns: repeat(3, 1fr); } }

.event-card {
  display: flex; flex-direction: column; background: #fff;
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-sm); color: var(--ink);
  transition: transform .2s, box-shadow .2s;
  border: 1px solid var(--line);
}
.event-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); text-decoration: none; color: var(--ink); border-color: transparent; }
.event-card-img { aspect-ratio: 3/2; object-fit: cover; background: var(--line-soft); }
.event-card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.event-card-date { color: var(--gold); font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.event-card-title { font-size: 19px; font-weight: 700; line-height: 1.3; margin: 0; color: var(--ink); }
.event-card-meta { font-size: 14px; color: var(--ink-soft); display: flex; flex-direction: column; gap: 5px; }
.event-card-speaker { display: flex; align-items: center; gap: 10px; margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); }
.event-card-speaker img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; background: var(--line-soft); }
.event-card-speaker-name { font-size: 14px; font-weight: 700; }
.event-card-speaker-role { font-size: 12px; color: var(--ink-muted); }

/* ============================================================
   Badges
   ============================================================ */
.badge {
  display: inline-block; padding: 4px 12px; border-radius: 999px;
  font-size: 12px; font-weight: 700; letter-spacing: .02em;
  background: var(--line-soft); color: var(--ink-soft);
}
.badge.gold    { background: var(--gold-soft); color: #8a6a18; }
.badge.success { background: #e1f6ec; color: #1f7a4d; }
.badge.danger  { background: #fdecec; color: var(--err); }
.badge.info    { background: #ecf0ff; color: #3b53b3; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }

/* ============================================================
   Event Detail
   ============================================================ */
.event-hero { position: relative; }
.event-hero-img {
  width: 100%; aspect-ratio: 16/9; object-fit: cover; max-height: 440px;
  background: var(--line-soft);
}
@media (min-width: 720px) { .event-hero-img { aspect-ratio: 21/9; max-height: 460px; } }

/* Fallback-Hero wenn kein eigenes Event-Bild vorhanden ist */
.event-hero-placeholder {
  padding: 56px 0 32px;
  background:
    radial-gradient(600px 300px at 15% 0%, rgba(200,154,58,.14), transparent 70%),
    radial-gradient(500px 300px at 90% 20%, rgba(102,126,234,.18), transparent 70%),
    linear-gradient(180deg, #0a0a18 0%, #14142a 100%);
  color: #fff; text-align: center; border-bottom: 1px solid rgba(255,255,255,.05);
}
.event-hero-placeholder img {
  max-height: 110px; margin: 0 auto 12px; filter: drop-shadow(0 8px 24px rgba(0,0,0,.4));
}
.event-hero-placeholder .eyebrow { color: var(--gold-2); }

.event-detail { padding: 40px 0 80px; }
.event-detail h1 { margin-top: 16px; }
.event-detail .subtitle { color: var(--ink-muted); font-size: 18px; margin: -4px 0 0; }
.event-detail .meta {
  display: flex; flex-direction: column; gap: 10px;
  color: var(--ink-soft); margin: 24px 0 32px; font-size: 15px;
  padding: 20px 22px; background: #fff; border-radius: var(--radius);
  border: 1px solid var(--line);
}
.event-detail .meta > div { display: flex; gap: 12px; align-items: flex-start; }
.event-detail .meta .label { color: var(--ink-muted); min-width: 100px; font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; }
.event-detail .description { font-size: 16px; line-height: 1.7; color: var(--ink-soft); }

.speaker-block {
  display: flex; gap: 18px; align-items: center; padding: 24px;
  background: #fff; border-radius: var(--radius); border: 1px solid var(--line);
  margin: 32px 0; box-shadow: var(--shadow-sm);
}
.speaker-block img { width: 96px; height: 96px; border-radius: 50%; object-fit: cover; flex-shrink: 0; background: var(--line-soft); }
.speaker-block .role { color: var(--ink-muted); font-size: 14px; }
.speaker-block p { margin: 10px 0 0; color: var(--ink-soft); font-size: 14px; }

.signup-block {
  background: #fff; padding: 28px; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); margin: 32px 0 0; border: 1px solid var(--line);
}
@media (min-width: 980px) {
  .event-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: start; }
  .signup-block { position: sticky; top: 100px; margin: 0; }
}

.capacity-bar { height: 8px; background: var(--line-soft); border-radius: 4px; overflow: hidden; margin: 8px 0; }
.capacity-bar > span {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--ok), var(--gold), var(--err));
}

/* ============================================================
   Archive
   ============================================================ */
.archive-grid { display: grid; gap: 20px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .archive-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .archive-grid { grid-template-columns: repeat(3, 1fr); } }

.archive-card {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-sm); color: var(--ink);
  transition: transform .15s, box-shadow .15s;
  border: 1px solid var(--line);
}
.archive-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); text-decoration: none; color: var(--ink); }
.archive-card img { width: 100%; aspect-ratio: 3/2; object-fit: cover; }
.archive-card-body { padding: 16px 20px 20px; }
.archive-card-date { font-size: 11px; color: var(--gold); text-transform: uppercase; letter-spacing: .12em; font-weight: 700; }
.archive-card-title { margin: 6px 0 4px; font-size: 17px; font-weight: 700; }
.archive-card-speaker { font-size: 13px; color: var(--ink-soft); }

/* ============================================================
   Mein Profil (Dashboard)
   ============================================================ */
.profile-header {
  padding: 48px 0 24px;
  background:
    radial-gradient(500px 300px at 20% 0%, rgba(200,154,58,.08), transparent 70%),
    #fff;
  border-bottom: 1px solid var(--line);
}
.profile-header h1 { margin: 0 0 6px; }
.profile-header .email { color: var(--ink-muted); font-size: 15px; }

.profile-grid {
  display: grid; gap: 24px; margin: 32px 0;
  grid-template-columns: 1fr;
}
@media (min-width: 860px) { .profile-grid { grid-template-columns: 2fr 1fr; } }

.card-block {
  background: #fff; padding: 28px; border-radius: var(--radius);
  box-shadow: var(--shadow-sm); border: 1px solid var(--line);
}
.card-block h2 { margin-top: 0; font-size: 20px; font-family: var(--font-head); }

.signup-item {
  display: grid; grid-template-columns: 90px 1fr; gap: 16px; align-items: center;
  padding: 14px; border-radius: 12px; background: var(--line-soft);
  margin: 10px 0; color: var(--ink); transition: background .15s;
}
.signup-item:hover { background: var(--gold-soft); text-decoration: none; color: var(--ink); }
.signup-item img { width: 90px; height: 68px; border-radius: 8px; object-fit: cover; }
.signup-item .title { font-weight: 700; line-height: 1.3; }
.signup-item .meta { font-size: 13px; color: var(--ink-muted); margin-top: 2px; }

.meta-list { display: grid; grid-template-columns: max-content 1fr; gap: 10px 22px; margin: 10px 0 20px; }
.meta-list dt { color: var(--ink-muted); font-size: 13px; text-transform: uppercase; letter-spacing: .04em; font-weight: 600; }
.meta-list dd { margin: 0; font-weight: 500; color: var(--ink); }

/* ============================================================
   Alerts, Forms (für Event-Detail Cancel etc.)
   ============================================================ */
.alert { padding: 12px 14px; border-radius: 12px; font-size: 14px; margin-bottom: 16px; line-height: 1.45; border: 1px solid transparent; }
.alert-error { background: #fdecec; color: var(--err); border-color: #fbd5d5; }
.alert-success { background: #e1f6ec; color: #1f7a4d; border-color: #c5ebd5; }
.alert-info { background: #ecf0ff; color: #3b53b3; border-color: #d6deff; }

.form { display: flex; flex-direction: column; gap: 14px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: 13px; color: var(--ink); }
.form input, .form select, .form textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 10px;
  font: inherit; font-size: 15px; background: #fff; color: var(--ink); transition: border-color .15s, box-shadow .15s;
}
.form input:focus, .form select:focus, .form textarea:focus {
  outline: 0; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(102,126,234,.12);
}

/* ============================================================
   Empty state
   ============================================================ */
.empty { text-align: center; padding: 56px 20px; color: var(--ink-muted); }
.empty .icon { font-size: 48px; margin-bottom: 12px; opacity: .6; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: var(--brand); color: #b6bccb; padding: 44px 0 28px; margin-top: 64px; }
.site-footer a { color: #cfd6e6; }
.site-footer a:hover { color: #fff; }
.site-footer .footer-grid { display: grid; gap: 28px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .site-footer .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.site-footer .footer-grid > div { display: flex; flex-direction: column; gap: 6px; }
.site-footer strong { color: #fff; font-family: var(--font-head); font-size: 18px; }

/* ============================================================
   Sponsor / Miettool Banner
   ============================================================ */
.sponsor-banner {
  display: block; text-decoration: none; color: var(--ink);
  background: linear-gradient(135deg, #f8f6f0 0%, #fff 50%, #f5f3ed 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg); overflow: hidden;
  padding: 28px 32px; position: relative;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.sponsor-banner:hover {
  transform: translateY(-2px); box-shadow: var(--shadow-md);
  border-color: var(--gold); text-decoration: none; color: var(--ink);
}
.sponsor-badge {
  position: absolute; top: 16px; right: 20px;
  background: var(--gold-soft); color: #8a6a18;
  font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  padding: 4px 12px; border-radius: 999px;
}
.sponsor-content {
  display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
}
.sponsor-logo {
  max-height: 52px; width: auto; flex-shrink: 0;
}
.sponsor-text { flex: 1; min-width: 240px; }
.sponsor-headline {
  font-family: var(--font-head); font-weight: 700; font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--ink); margin: 0 0 6px; line-height: 1.3;
}
.sponsor-sub {
  font-size: 14px; color: var(--ink-soft); margin: 0; line-height: 1.5;
}
.sponsor-sub strong { color: var(--accent); }
@media (max-width: 600px) {
  .sponsor-banner { padding: 22px 20px; }
  .sponsor-content { gap: 18px; }
  .sponsor-logo { max-height: 40px; }
  .sponsor-badge { position: static; display: inline-block; margin-bottom: 12px; }
}

/* Compact version (event detail, footer) */
.sponsor-compact {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  background: var(--line-soft); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 20px;
  text-decoration: none; color: var(--ink);
  transition: background .15s, border-color .15s;
}
.sponsor-compact:hover { background: var(--gold-soft); border-color: var(--gold); text-decoration: none; color: var(--ink); }
.sponsor-compact img { max-height: 32px; width: auto; }
.sponsor-compact .text { font-size: 13px; color: var(--ink-soft); flex: 1; min-width: 200px; }
.sponsor-compact .text strong { color: var(--accent); }

/* ============================================================
   Mobile-Responsive Fixes
   ============================================================ */
@media (max-width: 640px) {
  .dark-hero { padding: 48px 0 64px; }
  .dark-hero h1 { line-height: 1.1; }
  .dark-hero .lead { font-size: 1rem; margin-bottom: 24px; }
  .dark-hero .actions { gap: 10px; }
  .dark-hero .actions .btn { width: 100%; text-align: center; }

  .section { padding: 36px 0; }
  .section.after-dark { margin-top: -36px; }
  .page-hero { padding: 40px 0 28px; }

  .cta-band { padding: 32px 20px; border-radius: var(--radius); }
  .cta-band h2 { font-size: 1.4rem; }
  .cta-band .actions .btn { width: 100%; }

  .about-split { gap: 24px; }

  .speaker-block { flex-direction: column; gap: 12px; text-align: center; padding: 18px; }
  .speaker-block img { margin: 0 auto; }

  .signup-block { padding: 20px; border-radius: var(--radius); }

  .event-detail .meta { padding: 14px 16px; }
  .event-detail .meta .label { min-width: 70px; font-size: 11px; }

  .profile-header { padding: 32px 0 18px; }

  .btn { padding: 12px 18px; font-size: 14px; }
  .btn-full { padding: 14px 18px; }

  .sponsor-text { min-width: 0; }
}

@media (max-width: 480px) {
  .meta-list { grid-template-columns: 1fr; gap: 4px 0; }
  .meta-list dt { margin-top: 8px; }
  .section-title { flex-direction: column; align-items: flex-start; gap: 8px; }
  .event-card-title { font-size: 17px; }
}

@media (max-width: 860px) {
  .nav-toggle { padding: 10px; }
}

/* Touch-friendly: alle interaktiven Elemente mind. 44px hoch */
a.btn, button.btn { min-height: 44px; }
input[type=radio], input[type=checkbox] { min-width: 20px; min-height: 20px; }