/* =========================================================
   Klangkraft Tools — style.css
   Apple product-page aesthetic, dark theme.
   ========================================================= */

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:72px;overflow-x:hidden;}
body{margin:0;}
img,svg,video{display:block;max-width:100%;height:auto;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
a{color:inherit;text-decoration:none;}
input{font:inherit;color:inherit;background:none;border:none;outline:none;}
ul{margin:0;padding:0;list-style:none;}

:root{
  --bg:#000;
  --bg-1:#0a0a0a;
  --bg-2:#111;
  --surface:#1a1a1a;
  --text:#f5f5f7;
  --text-2:#a1a1a6;
  --text-3:#6e6e73;
  --accent:#d500ee;
  --accent-2:#e262fb;
  --accent-soft:rgba(213,0,238,.12);
  --border:rgba(255,255,255,.08);
  --border-2:rgba(255,255,255,.14);
  --font:'Inter','SF Pro Display',-apple-system,BlinkMacSystemFont,sans-serif;
  --serif:'Instrument Serif',Georgia,serif;
  --max-w:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
}

body{
  font-family:var(--font);font-size:17px;line-height:1.5;font-weight:400;
  color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  letter-spacing:-.015em;overflow-x:hidden;
}

.wrap{max-width:var(--max-w);margin:0 auto;padding:0 clamp(24px,5vw,52px);}

/* ===== NAV ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;height:64px;
  background:rgba(0,0,0,.72);
  backdrop-filter:blur(20px) saturate(180%);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  border-bottom:1px solid transparent;
  transition:background .4s var(--ease),border-color .4s;
}
.nav.scrolled{background:rgba(0,0,0,.88);border-bottom-color:var(--border);}
.nav__inner{
  max-width:var(--max-w);margin:0 auto;
  padding:0 clamp(24px,5vw,52px);
  height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.nav__brand{display:inline-flex;align-items:center;gap:10px;}
.brand-logo{display:inline-flex;align-items:center;}
.brand-logo__image{display:block;height:auto;width:auto;}
.brand-logo--nav .brand-logo__image{height:26px;filter:drop-shadow(0 0 10px rgba(213,0,238,.2));}
.brand-logo--footer .brand-logo__image{height:20px;filter:drop-shadow(0 0 8px rgba(213,0,238,.2));opacity:.7;}
.nav__menu{display:flex;align-items:center;gap:28px;}
.nav__menu a{font-size:14px;color:var(--text-2);transition:color .25s;}
.nav__menu a:hover{color:var(--text);}
.nav__cta{padding:8px 20px;border-radius:980px;font-size:13px;font-weight:600;background:var(--text);color:#000;transition:opacity .2s,transform .2s var(--ease);}
.nav__cta:hover{opacity:.9;transform:translateY(-1px);}
.nav__burger{display:none;}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:980px;
  font-size:14px;font-weight:600;letter-spacing:-.01em;
  cursor:pointer;border:none;white-space:nowrap;
  transition:opacity .2s,transform .2s var(--ease);
}
.btn:hover{transform:translateY(-1px);}
.btn--primary{background:var(--accent);color:#fff;}
.btn--primary:hover{background:var(--accent-2);}
.btn--white{background:var(--text);color:#000;}
.btn--white:hover{background:#fff;}
.btn--ghost{background:transparent;color:var(--text);border:1px solid var(--border-2);}
.btn--ghost:hover{background:rgba(255,255,255,.05);}

/* ===== PILL ===== */
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;
  border:1px solid var(--border-2);
  background:rgba(255,255,255,.03);
  font-size:12px;font-weight:500;color:var(--text-2);
  letter-spacing:.06em;text-transform:uppercase;
}
.pill__dot{width:6px;height:6px;border-radius:50%;flex:none;background:var(--accent);box-shadow:0 0 10px var(--accent);}

/* ===== EYEBROW ===== */
.eyebrow{
  display:block;font-size:14px;font-weight:500;color:var(--accent-2);
  letter-spacing:.02em;margin-bottom:14px;
}

/* ===== HERO ===== */
.hero{
  position:relative;z-index:1;
  min-height:100svh;
  padding-top:64px;
  display:flex;align-items:center;
  overflow:visible;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(ellipse 50% 60% at 15% 50%,rgba(213,0,238,.09),transparent 55%),
    radial-gradient(ellipse 40% 40% at 80% 70%,rgba(100,0,200,.06),transparent 55%);
}
.hero__inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr 1fr;
  align-items:center;gap:clamp(32px,5vw,56px);
  padding-top:clamp(48px,6vw,72px);
  padding-bottom:clamp(60px,8vw,100px);
}
.hero__text{
  display:flex;flex-direction:column;align-items:flex-start;gap:20px;
}
.hero__logo-lockup{display:flex;align-items:center;gap:12px;}
.hero__logo-img{height:clamp(26px,2.8vw,34px);width:auto;filter:drop-shadow(0 0 12px rgba(213,0,238,.25));}
.hero__logo-tools{
  font-size:clamp(26px,2.8vw,34px);font-weight:300;
  color:var(--text-2);letter-spacing:-.02em;line-height:1;
  transform:translateY(-2px);
}
.hero__headline{
  font-size:clamp(28px,7vw,68px);font-weight:800;
  letter-spacing:-.05em;line-height:.95;margin:0;
  background:linear-gradient(160deg,#fff 40%,#888 120%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__headline em{
  display:block;font-family:var(--serif);font-style:italic;font-weight:400;
  color:var(--accent-2);
  -webkit-text-fill-color:var(--accent-2);
}
.hero__desc{
  font-size:17px;line-height:1.7;color:var(--text-2);
  max-width:440px;margin:0;
}
.hero__ctas{display:flex;flex-direction:row;gap:12px;flex-wrap:wrap;margin-top:4px;}
.hero__note{font-size:12px;color:var(--text-3);}

.hero__visual{
  display:flex;align-items:center;justify-content:flex-end;
  margin-right:clamp(-24px,-3vw,-48px);
}
.hero__mac{
  width:clamp(420px,54vw,700px);
  max-width:none;
  filter:drop-shadow(0 40px 80px rgba(0,0,0,.6));
}

/* ===== SECTION BASE ===== */
.section{
  position:relative;z-index:1;
  padding:clamp(80px,11vw,140px) 0;
}
.section--dark{background:var(--bg-1);}
.section--darker{background:var(--bg);}

.section__title{
  font-size:clamp(36px,5.5vw,66px);font-weight:800;
  letter-spacing:-.045em;line-height:1.0;margin:0 0 20px;
  background:linear-gradient(155deg,#fff 40%,#999 120%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.section__lead{
  font-size:19px;line-height:1.65;color:var(--text-2);
  margin:0;max-width:600px;
}
.section__head{margin-bottom:clamp(48px,7vw,80px);}
.section__head--center{text-align:center;display:flex;flex-direction:column;align-items:center;}
.section__head--center .section__lead{max-width:560px;}

/* ===== FEATURE INTRO ===== */
.feat-intro{
  text-align:center;
  display:flex;flex-direction:column;align-items:center;
  gap:24px;
}
.feat-intro__title{
  font-size:clamp(38px,6vw,70px);font-weight:800;
  letter-spacing:-.045em;line-height:1.0;margin:0;
  background:linear-gradient(155deg,#fff 40%,#999 120%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.feat-intro__lead{
  font-size:19px;line-height:1.65;color:var(--text-2);
  max-width:580px;margin:0;
}

/* ===== FEATURE SHOWCASE (centered headline + screenshot below) ===== */
.feat-showcase__text{
  text-align:center;
  display:flex;flex-direction:column;align-items:center;
  gap:20px;margin-bottom:clamp(48px,6vw,72px);
}
.feat-showcase__text h2{
  font-size:clamp(36px,5.5vw,66px);font-weight:800;
  letter-spacing:-.045em;line-height:1.0;margin:0;
  background:linear-gradient(155deg,#fff 40%,#999 120%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.feat-showcase__visual{max-width:880px;margin:0 auto;}

/* ===== FEATURE STORY (split: text + screenshot) ===== */
.feat-story__inner{
  display:grid;grid-template-columns:1fr 1fr;
  align-items:center;gap:clamp(40px,6vw,80px);
}
.feat-story__text{
  display:flex;flex-direction:column;gap:20px;
}
.feat-story__text h2{
  font-size:clamp(34px,5vw,58px);font-weight:800;
  letter-spacing:-.045em;line-height:1.0;margin:0;
  background:linear-gradient(155deg,#fff 40%,#999 120%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.feat-story--flip .feat-story__text{order:2;}
.feat-story--flip .feat-story__visual{order:1;}

/* ===== FEAT DESC & BULLETS ===== */
.feat__desc{
  font-size:17px;line-height:1.7;color:var(--text-2);margin:0;
}
.feat__bullets{
  display:flex;flex-direction:column;gap:8px;margin-top:4px;
}
.feat__bullets li{
  display:flex;align-items:center;gap:10px;
  font-size:15px;color:var(--text-2);
}
.feat__bullets li::before{content:"✓";color:var(--accent-2);font-weight:700;font-size:13px;flex:none;}

/* ===== APP SCREENSHOT ===== */
.app-screenshot{
  width:100%;border-radius:10px;
  box-shadow:0 24px 72px rgba(0,0,0,.65),0 0 0 1px rgba(255,255,255,.05);
  display:block;
}

/* ===== FEATURE TRIO ===== */
.feat-trio{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:clamp(20px,3vw,36px);
}
.feat-trio__item{
  display:flex;flex-direction:column;gap:20px;
}
.feat-trio__shot{
  border-radius:10px;overflow:hidden;
  background:var(--bg-2);
  box-shadow:0 16px 48px rgba(0,0,0,.5),0 0 0 1px rgba(255,255,255,.04);
}
.feat-trio__shot .app-screenshot{
  border-radius:0;box-shadow:none;
}
.feat-trio__item h3{
  font-size:20px;font-weight:700;letter-spacing:-.04em;color:var(--text);margin:0;
}
.feat-trio__item p{
  font-size:15px;line-height:1.65;color:var(--text-2);margin:0;
}

/* ===== BY US FOR YOU ===== */
.by-us__inner{
  display:grid;grid-template-columns:1fr 1fr;
  align-items:center;gap:clamp(40px,6vw,80px);
}
.by-us__text{display:flex;flex-direction:column;gap:20px;}
.by-us__text h2{
  font-size:clamp(34px,5vw,58px);font-weight:800;
  letter-spacing:-.045em;line-height:1.0;margin:0;
  background:linear-gradient(155deg,#fff 40%,#999 120%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.by-us__desc{
  font-size:17px;line-height:1.7;color:var(--text-2);margin:0;
}
.bq{
  margin:0;
  padding:36px 40px;border-radius:20px;
  background:linear-gradient(135deg,#0f0020 0%,#0a0a14 100%);
  border:1px solid rgba(213,0,238,.2);
  display:flex;flex-direction:column;gap:28px;
}
.bq__text{
  font-family:var(--serif);font-style:italic;
  font-size:clamp(18px,2.2vw,24px);line-height:1.5;
  color:var(--text);margin:0;
}
.bq__author{
  display:flex;align-items:center;gap:12px;
  font-size:13px;color:var(--text-3);font-style:normal;
}
.bq__logo{height:18px;width:auto;opacity:.5;filter:drop-shadow(0 0 6px rgba(213,0,238,.2));}

/* ===== PILLARS ===== */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--border);}
.pillar{
  padding:52px 40px;background:var(--bg-1);
  display:flex;flex-direction:column;gap:14px;
}
.pillar__num{
  font-size:12px;font-weight:600;letter-spacing:.1em;
  text-transform:uppercase;color:var(--accent-2);
}
.pillar__title{font-size:24px;font-weight:700;color:var(--text);margin:0;letter-spacing:-.04em;}
.pillar__text{font-size:16px;line-height:1.7;color:var(--text-2);margin:0;}

/* ===== PRICING ===== */
.pricing-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
  max-width:860px;margin:0 auto;
}
.price-card{
  padding:40px;border-radius:24px;
  background:var(--bg-1);border:1px solid var(--border-2);
  display:flex;flex-direction:column;
}
.price-card--full{
  background:linear-gradient(160deg,#0f0020 0%,#0a0a14 100%);
  border-color:rgba(213,0,238,.3);
  box-shadow:0 0 60px rgba(213,0,238,.07);
}
.price-card__for{
  font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;
  color:var(--accent-2);margin-bottom:10px;
}
.price-card__name{
  font-size:22px;font-weight:700;letter-spacing:-.04em;color:var(--text);margin-bottom:6px;
}
.price-card__name em{font-style:normal;color:var(--text-2);font-weight:400;}
.price-card__tagline{font-size:14px;color:var(--text-3);margin-bottom:28px;}
.price-card__amount{
  font-size:52px;font-weight:800;letter-spacing:-.05em;color:var(--text);
  line-height:1;margin-bottom:4px;
}
.price-card__amount span{font-size:28px;font-weight:400;}
.price-card__once{font-size:13px;color:var(--text-3);margin-bottom:32px;}
.price-card__list{
  display:flex;flex-direction:column;gap:10px;
  margin-bottom:32px;flex:1;
}
.price-card__list li{
  display:flex;align-items:center;gap:10px;
  font-size:14px;
}
.price-card__list li::before{
  width:16px;height:16px;border-radius:50%;flex:none;
  display:flex;align-items:center;justify-content:center;
  font-size:10px;font-weight:700;
}
.price-card__list li.yes{color:var(--text);}
.price-card__list li.yes::before{content:"✓";background:rgba(74,222,128,.15);color:#4ADE80;}
.price-card__list li.no{color:var(--text-3);}
.price-card__list li.no::before{content:"–";background:rgba(255,255,255,.04);color:var(--text-3);}
.price-card__cta{width:100%;justify-content:center;padding:14px;font-size:15px;}

.pricing-note{
  text-align:center;font-size:14px;color:var(--text-3);
  margin-top:28px;
}

/* ===== CTA ===== */
.cta-section{
  position:relative;z-index:1;
  padding:clamp(100px,14vw,160px) 0;
  text-align:center;overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 70% 50% at 50% 50%,rgba(213,0,238,.11),transparent 65%);
}
.cta-inner{position:relative;display:flex;flex-direction:column;align-items:center;gap:20px;}
.cta-title{
  font-size:clamp(40px,6.5vw,80px);font-weight:800;
  letter-spacing:-.05em;line-height:.95;margin:10px 0;
  background:linear-gradient(155deg,#fff 35%,#aaa 115%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cta-desc{font-size:18px;line-height:1.7;color:var(--text-2);max-width:480px;}
.cta-form{display:flex;gap:10px;width:100%;max-width:420px;}
.cta-form__field{
  flex:1;padding:13px 18px;border-radius:980px;
  background:var(--bg-1);border:1px solid var(--border-2);
  color:var(--text);font-size:15px;
  transition:border-color .25s;
}
.cta-form__field::placeholder{color:var(--text-3);}
.cta-form__field:focus{border-color:var(--accent);}
.cta-note{font-size:12px;color:var(--text-3);}

/* ===== FOOTER ===== */
.footer{border-top:1px solid var(--border);padding:60px 0 40px;margin-top:80px;}
.footer__row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px;align-items:center;}
.footer__brand{display:flex;align-items:center;}
.footer__links{display:flex;gap:24px;font-size:14px;color:var(--text-2);flex-wrap:wrap;}
.footer__links a{transition:color .25s;}
.footer__links a:hover{color:var(--accent);}
.footer__copy{font-size:13px;color:var(--text-3);}

/* ===== SCROLL-TO-TOP ===== */
.scroll-top{
  position:fixed;bottom:max(28px,env(safe-area-inset-bottom));right:28px;z-index:40;
  width:52px;height:52px;border-radius:50%;
  background:var(--bg-2);border:1px solid var(--border);
  color:var(--text-2);
  display:flex;align-items:center;justify-content:center;
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease),color .2s;
  cursor:pointer;
}
.scroll-top.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.scroll-top:hover{color:var(--accent);}
.scroll-top__ring{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg);}
.scroll-top__progress{transition:stroke-dashoffset .1s linear;filter:drop-shadow(0 0 6px var(--accent));}
.scroll-top__arrow{width:18px;height:18px;position:relative;z-index:1;}
@media(max-width:480px){.scroll-top{bottom:max(18px,env(safe-area-inset-bottom));right:18px;}}

/* ===== SUPPORT PAGE ===== */
.support-hero{
  padding:clamp(130px,16vw,180px) 0 clamp(60px,8vw,80px);
  text-align:center;position:relative;
  background:var(--bg-1);border-bottom:1px solid var(--border);
}
.support-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 60% 50% at 50% 0%,rgba(213,0,238,.1),transparent 60%);
}
.support-hero__inner{position:relative;display:flex;flex-direction:column;align-items:center;gap:16px;}
.support-hero__title{
  font-size:clamp(48px,8vw,96px);font-weight:800;
  letter-spacing:-.05em;line-height:.95;margin:10px 0 0;
  background:linear-gradient(155deg,#fff 40%,#999 115%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.support-hero__sub{font-size:19px;color:var(--text-2);max-width:480px;}

.faq-section{padding:clamp(80px,10vw,120px) 0;}
.faq-section__title{
  font-size:clamp(28px,4vw,40px);font-weight:700;
  letter-spacing:-.04em;color:var(--text);margin:0 0 32px;
}
.faq-list{display:flex;flex-direction:column;border-top:1px solid var(--border);}
.faq-item{border-bottom:1px solid var(--border);}
.faq-item__q{
  width:100%;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--text);
  letter-spacing:-.02em;cursor:pointer;
}
.faq-item__q:hover{color:var(--text-2);}
.faq-icon{
  width:24px;height:24px;border-radius:50%;flex:none;
  background:var(--bg-2);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  transition:transform .3s var(--ease),background .3s;
}
.faq-icon svg{width:12px;height:12px;stroke:var(--text-2);transition:stroke .3s;}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent-soft);border-color:rgba(213,0,238,.3);}
.faq-item.open .faq-icon svg{stroke:var(--accent-2);}
.faq-item__a{
  display:none;padding:0 0 24px;
  font-size:16px;line-height:1.75;color:var(--text-2);
  max-width:780px;
}
.faq-item.open .faq-item__a{display:block;}

/* ===== RESPONSIVE ===== */
@media(max-width:1100px){
  .hero__inner{
    grid-template-columns:1fr;
    padding-top:clamp(40px,5vw,60px);
    padding-bottom:clamp(60px,8vw,80px);
  }
  .hero__text{align-items:flex-start;gap:16px;}
  .hero__desc{max-width:none;}
  .hero__visual{justify-content:flex-start;margin-right:0;margin-top:8px;}
  .hero__mac{width:min(90vw,640px);}

  .feat-story__inner{grid-template-columns:1fr;gap:40px;}
  .feat-story--flip .feat-story__text{order:0;}
  .feat-story--flip .feat-story__visual{order:-1;}
  .feat-story__visual{order:-1;}

  .by-us__inner{grid-template-columns:1fr;}
  .pillars{grid-template-columns:1fr;}
  .pricing-grid{grid-template-columns:1fr;max-width:440px;}
}

@media(max-width:760px){
  .feat-trio{grid-template-columns:1fr;}
}

@media(max-width:640px){
  /* Nav: Button verstecken, nur Burger zeigen */
  .nav__menu{display:none;}
  .nav__burger{
    display:flex;align-items:center;justify-content:center;
    width:36px;height:36px;
  }
  .nav__burger svg{width:20px;height:20px;}
  .nav--open .nav__menu{
    display:flex !important;flex-direction:column;
    position:fixed;top:64px;left:0;right:0;
    background:rgba(0,0,0,.96);
    backdrop-filter:blur(20px);
    padding:24px clamp(24px,5vw,52px) 32px;gap:16px;
    border-bottom:1px solid var(--border);
  }
  .nav--open .nav__menu a{font-size:17px;color:var(--text);}
  .nav--open .nav__cta{width:100%;text-align:center;padding:14px;display:inline-block;}

  /* Hero Text */
  .hero__text{gap:14px;}
  .hero__headline{letter-spacing:-.04em;}
  .hero__ctas{flex-direction:column;gap:10px;}
  .hero__ctas .btn{width:100%;justify-content:center;padding:14px;}

  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
}