/* ============================================================
   3VIO – Dachmarken-Erlebnisseite
   Die Familie über Fonavio (Cyan), Billavio (Gold), Rotavio
   (Violett): alle drei Markenfarben auf einer fast-schwarzen
   Bühne. Signatur = Tri-Color-Partikelwolke + Drei-Ringe-Marke.
   Schriften: Sora (Display) + Inter (Text) — Fallback
   System-Stack, bis die woff2 in fonts/ selbst gehostet sind.
   ============================================================ */

:root{
  --cyan:#16C7C7;          /* Fonavio */
  --gold:#F5C05A;          /* Billavio */
  --violet:#9E7BFF;        /* Rotavio */
  --deep:#0A0912;          /* Bühnenhintergrund */
  --paper:#F4F3F8;
  --muted:rgba(214,212,226,.62);
  --line:rgba(255,255,255,.14);
  --panel:rgba(18,17,26,.55);
  --warm:#FF875B;          /* Kontrast für „Baustellen"-Tags (Szene 1) */
  --acc:#D9D6E8;           /* Szenen-Akzent; Produktszenen überschreiben */
  --r:22px;
  --scene-pad:clamp(20px,5vw,64px);
  --font-display:"Sora","Segoe UI",system-ui,sans-serif;
  --font-text:"Inter","Segoe UI",system-ui,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{height:100%}
body{
  background:var(--deep);
  color:var(--paper);
  font-family:var(--font-text);
  line-height:1.55;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* Produktszenen-Akzente */
.p-fon{--acc:var(--cyan)}
.p-bil{--acc:var(--gold)}
.p-rot{--acc:var(--violet)}

/* ---------- Bühne ---------- */
#stage{
  position:fixed;inset:0;width:100%;height:100%;
  display:block;z-index:0;
}
.vignette{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(120% 90% at 50% 12%,transparent 44%,rgba(4,3,10,.5) 100%),
    linear-gradient(180deg,rgba(4,3,10,.3),transparent 22%,transparent 78%,rgba(4,3,10,.45));
}

/* ---------- Topbar ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:20;
  display:flex;justify-content:space-between;align-items:center;
  padding:18px var(--scene-pad);
}
.brand{
  color:var(--paper);text-decoration:none;font-weight:700;
  letter-spacing:.04em;font-size:20px;font-family:var(--font-display);
  display:inline-flex;align-items:center;gap:11px;min-height:40px;
}
.brand-mark{width:40px;height:40px;flex:0 0 auto}
.brand-word b{
  background:linear-gradient(120deg,var(--cyan),var(--gold) 52%,var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-weight:800;
}
.brand-de{color:var(--muted);font-weight:600}
.top-cta{
  color:var(--paper);text-decoration:none;font-size:13px;font-weight:700;
  padding:0 18px;border:1px solid var(--line);border-radius:999px;
  background:rgba(18,17,26,.45);backdrop-filter:blur(8px);
  transition:border-color .25s,transform .25s;
  display:inline-flex;align-items:center;min-height:40px;
}
.top-cta:hover{border-color:var(--violet);transform:translateY(-1px)}

/* ---------- Fortschritt ---------- */
.progress{
  position:fixed;right:clamp(4px,1.8vw,20px);top:50%;
  transform:translateY(-50%);z-index:20;
  display:flex;flex-direction:column;
}
.progress button{
  width:40px;height:40px;
  background:none;border:none;cursor:pointer;position:relative;
}
.progress button span{
  position:absolute;inset:0;margin:auto;width:8px;height:8px;border-radius:50%;
  background:rgba(214,212,226,.28);
  transition:background .3s,transform .3s,box-shadow .3s;
}
.progress button.is-active span{
  background:var(--paper);transform:scale(1.4);
  box-shadow:0 0 14px rgba(244,243,248,.5);
}

/* ---------- Szenen ---------- */
main{position:relative;z-index:10}
.scene{
  min-height:100vh;min-height:100svh;
  display:flex;align-items:center;
  padding:96px var(--scene-pad);
  position:relative;
}
.inner{max-width:820px;margin:0 auto;width:100%;text-align:center}
.inner-wide{max-width:1060px}

/* Reveal-Choreografie */
.scene .inner > *{
  opacity:0;transform:translateY(34px);
  transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1);
}
.scene.is-on .inner > *{opacity:1;transform:none}
.scene.is-on .inner > *:nth-child(2){transition-delay:.08s}
.scene.is-on .inner > *:nth-child(3){transition-delay:.16s}
.scene.is-on .inner > *:nth-child(4){transition-delay:.24s}
.scene.is-on .inner > *:nth-child(5){transition-delay:.32s}
.scene.is-on .inner > *:nth-child(6){transition-delay:.4s}
.scene.is-on .inner > *:nth-child(7){transition-delay:.48s}

/* Drei-Ringe-Marke groß im Hero + Wortmarke darunter */
.hero-mark{
  display:block;margin:0 auto 6px;
  width:clamp(130px,17vw,185px);height:auto;
  filter:drop-shadow(0 10px 42px rgba(158,123,255,.35));
}
.hero-word{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(34px,4.6vw,52px);letter-spacing:.02em;
  margin-bottom:16px;
}
.hero-word b{
  background:linear-gradient(120deg,var(--cyan),var(--gold) 52%,var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

.kicker{
  font-size:12px;font-weight:700;letter-spacing:.28em;text-transform:uppercase;
  color:var(--acc);margin-bottom:18px;
}
h1,h2{font-family:var(--font-display)}
h1{font-size:clamp(36px,6.4vw,76px);line-height:1.05;font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(30px,5.2vw,58px);line-height:1.07;font-weight:800;letter-spacing:-.01em}
/* Dach-Signatur: der Familien-Verlauf in den Headlines */
h1 em,h2 em{
  font-style:normal;
  background:linear-gradient(92deg,var(--cyan),var(--gold) 50%,var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
/* Produktszenen: em einfarbig im Produkt-Akzent */
.p-fon h2 em,.p-bil h2 em,.p-rot h2 em{
  background:none;color:var(--acc);
}
.lead{
  font-size:clamp(16px,2vw,20px);color:var(--muted);
  max-width:640px;margin:22px auto 0;
}
.lead b{color:var(--paper)}

/* CTA */
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.btn{
  display:inline-block;text-decoration:none;font-weight:700;font-size:15px;
  padding:15px 30px;border-radius:999px;min-height:40px;
  transition:transform .25s,box-shadow .25s,background .25s,border-color .25s;
}
.btn:hover{transform:translateY(-2px)}
.btn-solid{
  color:#14121A;
  background:linear-gradient(120deg,var(--cyan),var(--gold) 52%,var(--violet));
  box-shadow:0 12px 40px rgba(158,123,255,.3);
}
.btn-solid:hover{box-shadow:0 18px 55px rgba(158,123,255,.45)}
.btn-ghost{
  color:var(--paper);border:1px solid var(--line);
  background:rgba(18,17,26,.4);backdrop-filter:blur(8px);
}
.btn-ghost:hover{border-color:var(--acc)}

/* Finale: drei Produkt-Buttons mit Untertitel */
.cta-family .btn{display:inline-grid;gap:2px;text-align:center;padding:14px 28px}
.cta-family .btn small{font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.04em}
.btn-fon:hover{border-color:var(--cyan)}
.btn-bil:hover{border-color:var(--gold)}
.btn-rot:hover{border-color:var(--violet)}

/* Scroll-Hinweis */
.scroll-hint{
  margin-top:56px;font-size:11px;letter-spacing:.3em;text-transform:uppercase;
  color:var(--muted);
}
.scroll-line{
  display:block;width:1px;height:52px;margin:14px auto 0;
  background:linear-gradient(180deg,var(--violet),transparent);
  animation:drip 2.2s ease-in-out infinite;
}
@keyframes drip{
  0%{transform:scaleY(0);transform-origin:top}
  55%{transform:scaleY(1);transform-origin:top}
  56%{transform-origin:bottom}
  100%{transform:scaleY(0);transform-origin:bottom}
}

/* Tags */
.tag-row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.tag{
  font-size:13px;font-weight:600;padding:9px 18px;border-radius:999px;
  border:1px solid var(--line);color:var(--paper);
  background:rgba(255,255,255,.05);
}
.p-fon .tag{border-color:rgba(22,199,199,.3);background:rgba(22,199,199,.07)}
.p-bil .tag{border-color:rgba(245,192,90,.3);background:rgba(245,192,90,.07)}
.p-rot .tag{border-color:rgba(158,123,255,.3);background:rgba(158,123,255,.07)}
.tag-bad{
  color:rgba(255,205,185,.92);border-color:rgba(255,135,91,.35);
  background:rgba(255,135,91,.09);text-decoration:line-through;
  text-decoration-color:rgba(255,135,91,.6);
}

/* Warum-3vio (Szene 5): 3 Karten = 3 Spalten voll */
.why-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  margin-top:40px;text-align:left;
}
.why-card{
  border-radius:var(--r);border:1px solid var(--line);
  background:var(--panel);backdrop-filter:blur(12px);
  padding:26px 24px;
  transition:transform .3s,border-color .3s;
}
.why-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.3)}
.why-ico{
  display:inline-grid;place-items:center;min-width:44px;height:44px;padding:0 10px;
  border-radius:14px;font-weight:800;font-size:16px;
  font-family:var(--font-display);
  margin-bottom:14px;border:1px solid var(--line);
}
.ico-fon{color:var(--cyan);background:rgba(22,199,199,.12);border-color:rgba(22,199,199,.3)}
.ico-bil{color:var(--gold);background:rgba(245,192,90,.12);border-color:rgba(245,192,90,.3)}
.ico-rot{color:var(--violet);background:rgba(158,123,255,.12);border-color:rgba(158,123,255,.3)}
.why-card h3{font-size:17px;margin-bottom:8px;font-family:var(--font-display)}
.why-card p{font-size:13.5px;color:var(--muted)}

/* Vertrauen (Szene 6): 4 Karten = 4 Spalten voll */
.trust-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  margin-top:40px;text-align:left;
}
.trust-card{
  border-radius:var(--r);border:1px solid var(--line);
  background:var(--panel);backdrop-filter:blur(12px);
  padding:22px 20px;
  transition:transform .3s,border-color .3s;
}
.trust-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.3)}
.trust-card h3{
  font-size:15px;margin-bottom:8px;
  font-family:var(--font-display);letter-spacing:.02em;
  background:linear-gradient(92deg,var(--cyan),var(--gold) 50%,var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  display:inline-block;
}
.trust-card p{font-size:13px;color:var(--muted)}
.trust-note{margin-top:26px;font-size:13px;color:var(--muted);letter-spacing:.04em}

/* Finale */
.scene-final .foot{margin-top:56px;font-size:13px;color:var(--muted);line-height:2}
.scene-final .foot a{
  color:var(--paper);text-decoration:none;font-weight:700;letter-spacing:.04em;
  display:inline-flex;align-items:center;min-height:40px;padding:0 10px;
}

/* Fokus & Interaktion */
:focus-visible{outline:2px solid var(--violet);outline-offset:3px;border-radius:6px}

/* ---------- Mobil ---------- */
@media (max-width:1060px){
  .trust-grid{grid-template-columns:repeat(2,1fr);max-width:680px;margin-left:auto;margin-right:auto}
}
@media (max-width:860px){
  .why-grid{grid-template-columns:1fr;max-width:440px;margin-left:auto;margin-right:auto}
}
@media (max-width:640px){
  .progress{display:none} /* Rail überdeckt sonst Inhalt und Tap-Ziele */
  .trust-grid{grid-template-columns:1fr;max-width:420px}
  .brand-word{font-size:17px}
  .cta-family .btn{width:min(320px,100%)}
}
@media (max-width:480px){
  .scene{padding:88px 18px}
  .top-cta{padding:8px 14px;font-size:12px}
}

/* ---------- Reduzierte Bewegung ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  #stage{display:none}
  body{background:radial-gradient(120% 100% at 50% 0%,#141222 0%,#0A0912 60%)}
  .scene .inner > *{opacity:1;transform:none;transition:none}
  .scroll-line{animation:none}
  .btn,.why-card,.trust-card{transition:none}
}