/* ── Reset ────────────────────────────────────────────── */
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%;width:100%}

/* ── Base ─────────────────────────────────────────────── */
:root{
  --bg:#ffffff;
  --fg:#1a1a1a;
  --muted:#666;
  --orange:#FF6600;
  --bar-h:52px;
}
body{
  background:var(--bg);
  color:var(--fg);
  display:flex;
  flex-direction:column;
  min-height:100vh;
  overflow:hidden;
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
}
#water{
  position:fixed;
  bottom:0;left:0;
  width:100%;height:64px;
  pointer-events:none;
  z-index:1;
  opacity:.18;
}
#particles{
  position:fixed;
  top:0;left:0;
  width:100%;height:100%;
  pointer-events:none;
  z-index:0;
}
header,main,footer{position:relative}

/* ── Top Bar ──────────────────────────────────────────── */
header{
  height:var(--bar-h);
  display:flex;
  align-items:center;
  justify-content:center;
  border-bottom:1px solid #eee;
  flex-shrink:0;
  padding:0 12px;
}
.logo{
  display:block;
  height:32px;
  width:auto;
}
.lang-switch{
  position:absolute;
  right:12px;
  display:flex;
  gap:2px;
  flex-shrink:0;
}
.lang-btn{
  background:none;
  border:1px solid transparent;
  border-radius:4px;
  padding:4px 8px;
  font-size:clamp(.65rem,2.5vw,.75rem);
  font-family:inherit;
  color:var(--muted);
  cursor:pointer;
  transition:color .2s,border-color .2s;
  line-height:1;
}
.lang-btn:hover{color:var(--fg)}
.lang-btn.is-active{
  color:var(--orange);
  border-color:var(--orange);
}

/* ── Slides ──────────────────────────────────────────── */
main{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px 32px;
  overflow:hidden;
}
.slides-wrap{
  max-width:640px;
  width:100%;
  overflow:hidden;
}
.slides{
  display:flex;
  transition:transform .6s ease;
}
.slide{
  flex:0 0 100%;
  text-align:center;
  font-size:clamp(1rem,4vw,1.4rem);
  line-height:1.6;
  color:var(--fg);
  padding:0 16px;
}
.slide__label{
  font-weight:700;
  color:var(--orange);
}
.contact-email{
  display:inline-block;
  font-size:clamp(1rem,3.5vw,1.2rem);
  color:var(--orange);
  font-weight:600;
  word-break:break-all;
  border:1px solid var(--orange);
  border-radius:6px;
  padding:8px 20px;
  user-select:all;
}

/* ── Footer ───────────────────────────────────────────── */
footer{
  flex-shrink:0;
  text-align:center;
  color:var(--muted);
  font-size:clamp(.65rem,2.5vw,.8rem);
  padding:10px 16px;
  border-top:1px solid #eee;
  user-select:none;
  position:relative;
  overflow:hidden;
}
.footer__text{
  position:relative;
  z-index:1;
}