/* ═══════════════════════════════════════════════════════
   shared.css — styles used on every page
   ═══════════════════════════════════════════════════════ */

:root {
  --brand: #2B2C7C;
  --brand-dark: #1e1f5a;
  --brand-light: #3d3f9e;
  --accent: #B5E61D;
  --accent-dark: #96c418;
}

* { box-sizing: border-box; }

body {
  font-family: 'Inter', sans-serif;
  background: #ffffff;
  color: #1a1a2e;
  margin: 0;
  overflow-x: hidden;
}

h1, h2, h3, .display {
  font-family: 'Barlow Condensed', sans-serif;
  letter-spacing: -0.02em;
}

/* ─── Navigation ─── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(43,44,124,0.08);
  box-shadow: 0 2px 24px rgba(43,44,124,0.06), 0 1px 4px rgba(43,44,124,0.04);
}

.nav-logo { height: 40px; width: auto; }

.nav-links {
  display: flex;
  gap: 1.5rem;
}

/* ─── Lang toggle ─── */
.lang-btn {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.9rem;
  border-radius: 8px;
  border: 2px solid var(--brand);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease;
}
.lang-btn.active          { background: var(--brand); color: #fff; }
.lang-btn:not(.active)    { background: transparent; color: var(--brand); }
.lang-btn:hover:not(.active) { background: rgba(43,44,124,0.08); }
.lang-btn:focus-visible   { outline: 3px solid var(--accent); outline-offset: 2px; }
.lang-btn:active          { transform: scale(0.96); }

/* ─── Burger button ─── */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: 8px;
  transition: background 0.2s;
}
.burger:hover         { background: rgba(43,44,124,0.08); }
.burger:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
  transform-origin: center;
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── Mobile drawer ─── */
.mobile-menu {
  display: none;
  position: fixed;
  top: 68px;
  left: 0; right: 0;
  background: #fff;
  border-bottom: 1px solid rgba(43,44,124,0.1);
  box-shadow: 0 8px 32px rgba(43,44,124,0.08);
  z-index: 999;
  padding: 1.25rem 1.5rem 1.5rem;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
}
.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.mobile-menu a {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: #1a1a2e;
  text-decoration: none;
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(43,44,124,0.07);
  opacity: 0.75;
  transition: opacity 0.2s, color 0.2s;
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover      { opacity: 1; color: var(--brand); }

/* ─── Footer ─── */
footer {
  background: var(--brand-dark);
  color: rgba(255,255,255,0.6);
}

/* ─── Lang switch transitions ─── */
[data-de], [data-en] { transition: opacity 0.2s ease; }

/* ─── Scroll reveal ─── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22,1,0.36,1);
}
.reveal.visible        { opacity: 1; transform: translateY(0); }
.reveal-delay-1        { transition-delay: 0.1s; }
.reveal-delay-2        { transition-delay: 0.2s; }
.reveal-delay-3        { transition-delay: 0.3s; }
.reveal-delay-4        { transition-delay: 0.4s; }
.reveal-delay-5        { transition-delay: 0.5s; }

/* ─── Modal animation ─── */
@keyframes modalIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
#impressum-modal > div,
#datenschutz-modal > div { animation: modalIn 0.3s cubic-bezier(0.34,1.56,0.64,1); }

/* ─── Responsive nav ─── */
@media (max-width: 768px) {
  .nav-links  { display: none; }
  .burger     { display: flex; }
  .mobile-menu { display: block; }
  .nav-inner  { justify-content: flex-start; gap: 1.5rem; }
  .nav-right  { gap: 1rem; }
  .burger     { order: -1; }
}
@media (max-width: 640px) {
  .nav-logo   { height: 32px; }
  .nav-inner  { padding: 0 1rem !important; }
}