/* ============================================
   ROBERT KALLI — Verbindung / Beziehung Subdomain
   verbindung.robertkalli.com
   Requires: robertkalli.com/assets/css/global.css
   ============================================ */

/* ── THEME: Light, warm, Cream-Amber / Kupfer ── */

:root {
  --vb-bg:          #FAF6EF;
  --vb-bg-mid:      #F3E9D8;
  --vb-bg-warm:     #EDD9BE;
  --vb-border:      #E0C9A6;
  --vb-muted:       #9A7A56;
  --vb-warm:        #6B4E2A;
  --vb-ink:         #2E1E0A;
  --vb-ink-mid:     #3D2810;
  --vb-ink-soft:    #7A5C3A;
  --vb-acc:         #B87340;
  --vb-acc-dim:     #8C5220;
  --vb-acc-light:   #F3E4D0;
  --vb-acc-pale:    #EDD9BE;
  --vb-acc-on-dark: #D9A96E;
}

body {
  background-color: var(--vb-bg);
  color: var(--vb-ink);
  font-family: var(--font-sans);
  font-weight: 300;
}

::selection { background: var(--vb-acc); color: #FAF6EF; }
::-webkit-scrollbar-track { background: var(--vb-bg); }
::-webkit-scrollbar-thumb { background: var(--vb-bg-warm); }

/* ── NAV ── */

.vb-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.75rem 2.5rem;
  border-bottom: 0.5px solid transparent;
  transition: background 400ms ease, border-color 400ms ease;
}

.vb-nav.scrolled {
  background: rgba(250,246,239,0.92);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--vb-border);
}

.vb-nav-logo {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--vb-ink);
  opacity: 0.7;
  text-decoration: none;
  transition: opacity 180ms ease;
}

.vb-nav-logo:hover { opacity: 1; }
.vb-nav-logo span { color: var(--vb-acc); }

.vb-nav-back {
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--vb-muted);
  text-decoration: none;
  transition: color 180ms ease;
}

.vb-nav-back:hover { color: var(--vb-acc); }

/* ── HERO ── */

.vb-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 2rem 6rem;
  position: relative;
  overflow: hidden;
}

.vb-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 25% 35%, rgba(184,115,64,0.10) 0%, transparent 60%),
    radial-gradient(ellipse 55% 70% at 80% 60%, rgba(184,115,64,0.06) 0%, transparent 55%),
    radial-gradient(ellipse 90% 40% at 50% 95%, rgba(217,169,110,0.08) 0%, transparent 50%);
  pointer-events: none;
  animation: breathe 9s ease-in-out infinite alternate;
}

@keyframes breathe {
  0%   { opacity: 0.7; transform: scale(1); }
  100% { opacity: 1;   transform: scale(1.03); }
}

.vb-hero-label {
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--vb-acc);
  margin-bottom: 1.5rem;
  opacity: 0.8;
  position: relative;
}

.vb-hero-headline {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(2.6rem, 5.5vw, 5rem);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--vb-ink);
  margin-bottom: 1.5rem;
  max-width: 720px;
  position: relative;
}

.vb-hero-headline em {
  font-style: italic;
  color: var(--vb-acc);
}

.vb-hero-sub {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--vb-ink-soft);
  max-width: 440px;
  margin: 0 auto 1.5rem;
  position: relative;
}

.vb-hero-jana {
  font-size: 0.9rem;
  color: var(--vb-muted);
  letter-spacing: 0.08em;
  margin-bottom: 2.5rem;
  position: relative;
}

.vb-hero-jana a {
  color: var(--vb-acc);
  text-decoration: none;
  transition: opacity 180ms ease;
}

.vb-hero-jana a:hover { opacity: 0.7; }

/* WIP Badge */
.vb-wip-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border: 0.5px solid var(--vb-border);
  border-radius: 2px;
  padding: 0.6rem 1.1rem;
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--vb-muted);
  position: relative;
  background: rgba(250,246,239,0.6);
}

.vb-wip-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--vb-acc);
  opacity: 0.6;
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50%       { opacity: 0.8; transform: scale(1.2); }
}

/* ── WAVE DIVIDER ── */

.vb-wave {
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.vb-wave svg {
  display: block;
  width: 100%;
  height: 48px;
}

/* ── TOPICS ── */

.vb-topics {
  padding: 5rem 2rem 6rem;
  max-width: 860px;
  margin: 0 auto;
}

.vb-topics-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--vb-muted);
  text-align: center;
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.vb-topics-label::before,
.vb-topics-label::after {
  content: '';
  flex: 1;
  height: 0.5px;
  background: var(--vb-border);
  max-width: 80px;
}

.vb-topics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--vb-border);
  border: 0.5px solid var(--vb-border);
  border-radius: 2px;
  overflow: hidden;
}

.vb-topic {
  background: var(--vb-bg);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
  transition: background 300ms ease;
}

.vb-topic::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at bottom left, rgba(184,115,64,0.10) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 300ms ease;
}

.vb-topic:hover { background: var(--vb-acc-light); }
.vb-topic:hover::before { opacity: 1; }

.vb-topic-num {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--vb-acc);
  opacity: 0.5;
}

.vb-topic-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 1.4rem;
  color: var(--vb-ink);
  line-height: 1.2;
}

.vb-topic-sub {
  font-size: 0.9rem;
  color: var(--vb-ink-soft);
  line-height: 1.6;
}

/* ── JANA SECTION ── */

.vb-jana {
  background: var(--vb-bg-mid);
  border-top: 0.5px solid var(--vb-border);
  border-bottom: 0.5px solid var(--vb-border);
  padding: 5rem 2rem;
}

.vb-jana-inner {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.vb-jana-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--vb-acc);
  opacity: 0.8;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.vb-jana-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 0.5px;
  background: var(--vb-acc);
}

.vb-jana-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 1.5rem;
  color: var(--vb-ink);
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.vb-jana-text {
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--vb-ink-soft);
}

.vb-jana-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--vb-acc);
  text-decoration: none;
  border-bottom: 0.5px solid var(--vb-border);
  padding-bottom: 0.15rem;
  transition: border-color 180ms ease;
}

.vb-jana-link:hover { border-color: var(--vb-acc); }

.vb-jana-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.vb-jana-shape {
  width: 220px;
  height: 220px;
  border-radius: 60% 40% 55% 45% / 45% 55% 40% 60%;
  background: linear-gradient(135deg, rgba(184,115,64,0.14) 0%, rgba(217,169,110,0.08) 100%);
  border: 0.5px solid var(--vb-border);
  animation: morph 9s ease-in-out infinite alternate;
}

@keyframes morph {
  0%   { border-radius: 60% 40% 55% 45% / 45% 55% 40% 60%; }
  50%  { border-radius: 40% 60% 45% 55% / 55% 45% 60% 40%; }
  100% { border-radius: 55% 45% 40% 60% / 40% 60% 55% 45%; }
}

/* ── EVENTS ── */

.vb-events {
  padding: 5rem 2rem 6rem;
  max-width: 860px;
  margin: 0 auto;
}

.vb-events-header {
  margin-bottom: 3rem;
}

.vb-events-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--vb-acc);
  opacity: 0.8;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.vb-events-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 0.5px;
  background: var(--vb-acc);
}

.vb-events-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--vb-ink);
  line-height: 1.2;
}

.vb-events-title em {
  font-style: italic;
  color: var(--vb-acc);
}

.vb-events-grid {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--vb-border);
  border: 0.5px solid var(--vb-border);
  border-radius: 2px;
  overflow: hidden;
}

.vb-event {
  background: var(--vb-bg);
  padding: 2rem 2rem 2rem 2rem;
  display: grid;
  grid-template-columns: 10rem 1fr auto;
  gap: 2rem;
  align-items: center;
  text-decoration: none;
  color: inherit;
  transition: background 250ms ease;
  position: relative;
}

.vb-event:hover { background: var(--vb-acc-light); }

.vb-event-meta {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  border-right: 0.5px solid var(--vb-border);
  padding-right: 2rem;
}

.vb-event-date {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--vb-ink);
  line-height: 1.2;
}

.vb-event-location {
  font-size: .9rem;
  letter-spacing: 0.08em;
  color: var(--vb-muted);
}

.vb-event-body {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.vb-event-tag {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--vb-acc);
  opacity: 0.7;
}

.vb-event-name {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 2rem;
  color: var(--vb-ink);
  line-height: 1.2;
}

.vb-event-desc {
  font-size: 0.95rem;
  color: var(--vb-ink-soft);
  line-height: 1.7;
  max-width: 48ch;
}

.vb-event-arrow {
  font-size: 1rem;
  color: var(--vb-acc);
  opacity: 0.5;
  transition: opacity 250ms ease, transform 250ms ease;
}

.vb-event:hover .vb-event-arrow {
  opacity: 1;
  transform: translateX(4px);
}

/* ── FOOTER ── */

.vb-footer {
  background: var(--vb-ink);
  padding: 2rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.vb-footer-logo {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: #FAF6EF;
  opacity: 0.3;
  text-decoration: none;
}

.vb-footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.vb-footer-links a {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: rgba(250,246,239,0.3);
  text-decoration: none;
  transition: color 180ms ease;
}

.vb-footer-links a:hover { color: rgba(250,246,239,0.8); }

/* ── ANIMATION ── */

.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}

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

/* ── MOBILE ── */

@media (max-width: 680px) {
  .vb-nav { padding: 1.25rem 1.5rem; }
  .vb-topics-grid { grid-template-columns: 1fr; }
  .vb-jana-inner { grid-template-columns: 1fr; gap: 2rem; }
  .vb-jana-visual { display: none; }
  .vb-footer { flex-direction: column; gap: 1rem; padding: 1.5rem; }
  .vb-event { grid-template-columns: 1fr; gap: 0.75rem; }
  .vb-event-meta { border-right: none; padding-right: 0; border-bottom: 0.5px solid var(--vb-border); padding-bottom: 0.75rem; }
  .vb-event-arrow { display: none; }
}