/* ============================================================
   Krull Holding – One-Pager
   Dark / Anthracite-Navy theme · Teal/Cyan accents · Inter
   ============================================================ */

:root {
  --bg:        #0a0f1a;
  --bg-2:      #0d1424;
  --surface:   #111a2e;
  --surface-2: #16223b;
  --line:      rgba(255,255,255,.08);
  --line-2:    rgba(255,255,255,.14);

  --text:      #eaf0fb;
  --muted:     #9fb0cc;
  --muted-2:   #6f819e;

  --accent:    #19d3c5;   /* teal */
  --accent-2:  #2f7bff;   /* cool blue */
  --accent-3:  #5eead4;

  --grad: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 100%);

  --radius:   18px;
  --radius-sm: 12px;
  --maxw: 1180px;

  --shadow: 0 24px 60px -20px rgba(0,0,0,.65);
  --shadow-glow: 0 0 0 1px var(--line), 0 30px 80px -30px rgba(47,123,255,.35);

  --ease: cubic-bezier(.16,.84,.44,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after { box-sizing: border-box; margin:0; padding:0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } *{ animation:none!important; transition:none!important; } }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
img { display:block; max-width:100%; }
::selection { background: var(--accent); color:#04121a; }

.container { width: min(100% - 44px, var(--maxw)); margin-inline: auto; }

/* ---------- Scroll progress ---------- */
.scroll-progress{
  position: fixed; top:0; left:0; height:3px; width:0%;
  background: var(--grad); z-index: 1000;
  box-shadow: 0 0 14px rgba(25,211,197,.7);
  transition: width .1s linear;
}

/* ---------- Reveal animation ---------- */
.reveal{ opacity:0; transform: translateY(34px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-visible{ opacity:1; transform:none; }

/* ============================================================
   NAVBAR
   ============================================================ */
.nav{
  position: fixed; top:0; left:0; right:0; z-index: 900;
  transition: background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled{
  background: rgba(10,15,26,.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.nav__inner{
  width: min(100% - 44px, var(--maxw)); margin-inline:auto;
  display:flex; align-items:center; justify-content:space-between;
  height: 76px;
}
.nav__brand{ display:inline-flex; align-items:center; }
.nav__logo{ height: 52px; width:auto; display:block; transition: transform .3s var(--ease); }
.nav__brand:hover .nav__logo{ transform: scale(1.03); }
@media (max-width: 720px){ .nav__logo{ height: 44px; } }

.nav__links{ display:flex; align-items:center; gap: 6px; }
.nav__links a{
  padding: 9px 16px; border-radius: 10px; font-size: .94rem; font-weight: 500;
  color: var(--muted); transition: color .25s, background .25s;
}
.nav__links a:hover{ color: var(--text); background: rgba(255,255,255,.05); }
.nav__cta{
  color:#04121a !important; background: var(--grad); font-weight:700 !important;
  box-shadow: 0 10px 26px -10px rgba(25,211,197,.6);
}
.nav__cta:hover{ filter: brightness(1.06); transform: translateY(-1px); }

.nav__burger{ display:none; flex-direction:column; gap:5px; background:none; border:0; cursor:pointer; padding:8px; }
.nav__burger span{ width:24px; height:2px; background: var(--text); border-radius:2px; transition: .3s var(--ease); }
.nav__burger.is-open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2){ opacity:0; }
.nav__burger.is-open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

.nav__mobile{
  display:none; flex-direction:column; gap:2px;
  padding: 8px 22px 18px;
  background: rgba(10,15,26,.96); backdrop-filter: blur(14px);
  border-bottom:1px solid var(--line);
}
.nav__mobile a{ padding: 13px 8px; border-radius:10px; color: var(--muted); font-weight:500; }
.nav__mobile a:hover{ color: var(--text); background: rgba(255,255,255,.05); }
.nav__mobile.is-open{ display:flex; }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position: relative; min-height: 100svh;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center; padding: 120px 22px 80px; overflow:hidden;
}
.hero__bg{ position:absolute; inset:0; z-index:0; }
.hero__gradient{
  position:absolute; inset:-30%;
  background:
    radial-gradient(40% 50% at 22% 28%, rgba(47,123,255,.40), transparent 60%),
    radial-gradient(45% 55% at 80% 30%, rgba(25,211,197,.34), transparent 60%),
    radial-gradient(60% 60% at 50% 100%, rgba(47,123,255,.18), transparent 60%);
  filter: blur(20px);
  animation: drift 18s ease-in-out infinite alternate;
}
@keyframes drift{
  0%   { transform: translate3d(0,0,0) scale(1); }
  50%  { transform: translate3d(3%, -2%, 0) scale(1.06); }
  100% { transform: translate3d(-3%, 2%, 0) scale(1.03); }
}
#particles{ position:absolute; inset:0; width:100%; height:100%; }
.hero__grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 45%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 50% 45%, #000 0%, transparent 72%);
  opacity:.5;
}

.hero__content{ position:relative; z-index:2; max-width: 900px; }
.hero__eyebrow{
  display:inline-block; font-size:.82rem; letter-spacing:.28em; text-transform:uppercase;
  color: var(--accent-3); font-weight:600; margin-bottom: 26px;
  padding: 8px 16px; border:1px solid var(--line-2); border-radius: 100px;
  background: rgba(255,255,255,.03);
}
.hero__title{
  font-size: clamp(2.4rem, 6.4vw, 5rem);
  font-weight: 800; line-height: 1.04; letter-spacing: -.025em;
}
.hero__title .line{ display:block; }
.gradient-text{
  background: var(--grad); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero__sub{
  margin: 26px auto 0; max-width: 640px;
  font-size: clamp(1.02rem, 2vw, 1.22rem); color: var(--muted); font-weight: 300;
}
.hero__actions{ margin-top: 38px; display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

.hero__scroll{
  position:absolute; bottom: 30px; left:50%; transform: translateX(-50%); z-index:2;
  width: 26px; height: 42px; border:2px solid var(--line-2); border-radius: 20px;
  display:flex; justify-content:center; padding-top:7px;
}
.hero__scroll-dot{ width:4px; height:8px; border-radius:4px; background: var(--accent); animation: scrolldot 1.6s var(--ease) infinite; }
@keyframes scrolldot{ 0%{opacity:0;transform:translateY(-4px);} 40%{opacity:1;} 80%{opacity:0;transform:translateY(12px);} 100%{opacity:0;} }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:9px;
  padding: 14px 26px; border-radius: 100px; font-weight:600; font-size:.98rem;
  cursor:pointer; border:1px solid transparent; transition: .3s var(--ease); white-space:nowrap;
}
.btn svg{ transition: transform .3s var(--ease); }
.btn--primary{ background: var(--grad); color:#04121a; box-shadow: 0 16px 36px -14px rgba(25,211,197,.7); }
.btn--primary:hover{ transform: translateY(-2px); filter: brightness(1.05); box-shadow: 0 22px 48px -16px rgba(25,211,197,.8); }
.btn--primary:hover svg{ transform: translateX(4px); }
.btn--ghost{ background: rgba(255,255,255,.04); color: var(--text); border-color: var(--line-2); }
.btn--ghost:hover{ background: rgba(255,255,255,.09); transform: translateY(-2px); }
.btn--full{ width:100%; justify-content:center; }

/* ============================================================
   SECTIONS (general)
   ============================================================ */
.section{ position:relative; padding: clamp(72px, 11vw, 140px) 0; }
.section__head{ max-width: 760px; margin-bottom: 60px; }
.section__intro{ margin-top: 18px; color: var(--muted); font-size: 1.06rem; font-weight: 300; }
.kicker--alt{ color: var(--accent-2); }
.kicker{
  display:inline-block; font-size:.78rem; letter-spacing:.22em; text-transform:uppercase;
  color: var(--accent); font-weight:700; margin-bottom:16px;
}
.section__title{
  font-size: clamp(1.8rem, 4vw, 2.9rem); font-weight: 800; line-height:1.12; letter-spacing:-.02em;
}
.lead{ font-size: clamp(1.05rem, 2vw, 1.28rem); color: var(--muted); font-weight: 300; }

/* ---------- About ---------- */
.about{ background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%); }
.about__grid{ display:grid; grid-template-columns: 1fr 1.25fr; gap: clamp(32px, 6vw, 90px); align-items:start; }
.about__head{ position: sticky; top: 110px; }
.stats{ display:flex; gap: 14px; margin-top: 42px; flex-wrap:wrap; }
.stat{
  flex:1; min-width: 130px; padding: 22px 20px; border-radius: var(--radius-sm);
  background: var(--surface); border:1px solid var(--line);
}
.stat__num{ display:block; font-size: 2.2rem; font-weight:800; letter-spacing:-.02em; line-height:1;
  background: var(--grad); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; }
.stat__label{ display:block; margin-top:8px; font-size:.86rem; color: var(--muted-2); }

/* ---------- Invest / Beteiligung ---------- */
.invest{ background: var(--bg-2); }
.cards{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cards--duo{ grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card{
  position: relative; padding: 36px 30px 34px; border-radius: var(--radius);
  background: var(--surface); border:1px solid var(--line);
  overflow:hidden; transition: transform .45s var(--ease), border-color .45s var(--ease), box-shadow .45s var(--ease);
}
.card__glow{
  position:absolute; inset:0; opacity:0; transition: opacity .45s var(--ease);
  background: radial-gradient(420px 220px at var(--mx,50%) var(--my,0%), rgba(25,211,197,.16), transparent 60%);
}
.card:hover{ transform: translateY(-8px); border-color: var(--line-2); box-shadow: var(--shadow); }
.card:hover .card__glow{ opacity:1; }
.card__icon{
  width:58px; height:58px; border-radius:14px; display:grid; place-items:center; margin-bottom:22px;
  color: var(--accent); background: rgba(25,211,197,.10); border:1px solid rgba(25,211,197,.22);
  transition: transform .45s var(--ease);
}
.card:hover .card__icon{ transform: translateY(-3px) rotate(-4deg); }
.card__title{ font-size:1.32rem; font-weight:700; margin-bottom:12px; letter-spacing:-.01em; position:relative; }
.card__text{ color: var(--muted); font-size: .98rem; position:relative; }
.card__text strong{ color: var(--accent-3); font-weight:600; }

/* Accent cards (Beteiligungsmodelle) */
.card--accent{ padding-top: 30px; }
.card--accent::before{
  content:""; position:absolute; inset:0 0 auto 0; height:3px; background: var(--grad); opacity:.85;
}
.card__badge{
  position:relative; display:inline-block; margin-bottom:18px;
  font-size:.72rem; font-weight:700; letter-spacing:.12em; text-transform:uppercase;
  color: var(--accent-3); padding:6px 12px; border-radius:100px;
  background: rgba(25,211,197,.10); border:1px solid rgba(25,211,197,.24);
}
.card__badge--alt{ color:#a9c7ff; background: rgba(47,123,255,.12); border-color: rgba(47,123,255,.30); }
.card__list{ list-style:none; margin-top:18px; display:flex; flex-direction:column; gap:10px; position:relative; }
.card__list li{ position:relative; padding-left:26px; color: var(--muted); font-size:.93rem; }
.card__list li::before{
  content:""; position:absolute; left:0; top:7px; width:14px; height:9px;
  border-left:2px solid var(--accent); border-bottom:2px solid var(--accent);
  transform: rotate(-45deg);
}

/* Kooperations-Hinweis */
.invest__note{
  display:flex; align-items:center; gap:14px; justify-content:center; text-align:left;
  max-width: 760px; margin: 34px auto 0; padding: 16px 22px;
  border-radius: 100px; background: var(--surface); border:1px solid var(--line);
  color: var(--muted); font-size:.98rem;
}
.invest__note svg{ color: var(--accent); flex-shrink:0; }
.invest__note strong{ color: var(--text); font-weight:600; }

/* ---------- Portfolio ---------- */
.portfolio{ background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%); }
.portfolio__inner{
  max-width: 880px; margin-inline:auto; text-align:center;
  padding: clamp(36px, 6vw, 64px); border-radius: var(--radius);
  background: var(--surface); border:1px solid var(--line);
  position:relative; overflow:hidden;
}
.portfolio__inner--inline{ margin-top: 48px; }
.portfolio__inner::before{
  content:""; position:absolute; top:-1px; left:0; right:0; height:1px;
  background: var(--grad); opacity:.7;
}
.portfolio__text{ font-size: clamp(1.1rem, 2.4vw, 1.5rem); font-weight:300; color: var(--text); line-height:1.5; }
.portfolio__text strong{ font-weight:700; color: var(--accent-3); }
.portfolio__tags{ display:flex; gap:10px; justify-content:center; flex-wrap:wrap; margin-top: 28px; }
.portfolio__tags span{
  padding:8px 18px; border-radius:100px; font-size:.85rem; font-weight:600; color: var(--muted);
  border:1px solid var(--line-2); background: rgba(255,255,255,.03);
}

/* ---------- Divider between business areas ---------- */
.field-divider{
  display:flex; align-items:center; gap:20px;
  width: min(100% - 44px, 760px); margin: 0 auto; padding: 6px 0;
}
.field-divider span{ flex:1; height:1px; background: linear-gradient(90deg, transparent, var(--line-2), transparent); }
.field-divider em{
  font-style:normal; font-size:.74rem; letter-spacing:.2em; text-transform:uppercase;
  color: var(--muted-2); white-space:nowrap;
}

/* ---------- Immobilien (eigenständig) ---------- */
.realestate{
  background:
    radial-gradient(80% 120% at 100% 0%, rgba(47,123,255,.10), transparent 55%),
    var(--bg);
  border-top:1px solid var(--line);
}
.realestate__grid{ display:grid; grid-template-columns: 1.15fr .85fr; gap: clamp(36px, 6vw, 80px); align-items:center; }
.realestate__lead{ margin-top:18px; color: var(--muted); font-size:1.08rem; font-weight:300; max-width: 520px; }
.realestate__lead strong{ color: var(--accent-3); font-weight:600; }
.realestate__points{ list-style:none; margin:30px 0 34px; display:flex; flex-direction:column; gap:14px; }
.realestate__points li{ display:flex; align-items:center; gap:14px; color: var(--text); font-weight:500; }
.realestate__points li span{
  flex-shrink:0; width:34px; height:34px; border-radius:9px; display:grid; place-items:center;
  font-size:.82rem; font-weight:700; color: var(--accent-2);
  background: rgba(47,123,255,.10); border:1px solid rgba(47,123,255,.26);
}
.realestate__visual{ display:grid; place-items:center; min-height: 320px; }
.logo-draw{
  width: min(100%, 360px); height:auto; display:block;
  filter: drop-shadow(0 0 14px rgba(25,211,197,.18));
  overflow: visible;
}
/* Nachzeichnen: Linien werden per Scroll von 1 (verborgen) → 0 (gezeichnet) gesetzt */
.ld{
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset .12s ease-out;
}
@media (prefers-reduced-motion: reduce){
  .ld{ stroke-dashoffset: 0 !important; transition:none; }
}

/* ---------- Contact ---------- */
.contact{ background: var(--bg-2); }
.contact__grid{ display:grid; grid-template-columns: 1fr 1.1fr; gap: clamp(36px, 6vw, 80px); align-items:start; }
.contact__lead{ color: var(--muted); margin-top:18px; font-size:1.06rem; font-weight:300; max-width: 440px; }
.contact__meta{ list-style:none; margin-top: 30px; display:flex; flex-direction:column; gap:14px; }
.contact__meta li{ display:flex; align-items:center; gap:12px; color: var(--muted); font-size:.98rem; }
.contact__meta svg{ color: var(--accent); flex-shrink:0; }
.contact__meta a:hover{ color: var(--accent-3); }

.contact__form{
  padding: clamp(26px, 4vw, 40px); border-radius: var(--radius);
  background: var(--surface); border:1px solid var(--line); box-shadow: var(--shadow);
}
.field{ position:relative; margin-bottom: 18px; }
.field input, .field select, .field textarea{
  width:100%; padding: 20px 16px 8px; border-radius: var(--radius-sm);
  background: var(--bg-2); border:1px solid var(--line-2); color: var(--text);
  font: inherit; font-size:1rem; transition: border-color .25s, box-shadow .25s, background .25s;
  appearance:none; -webkit-appearance:none;
}
.field textarea{ resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(25,211,197,.14); background: var(--surface-2);
}
.field label{
  position:absolute; left:16px; top: 15px; color: var(--muted-2); font-size:1rem;
  pointer-events:none; transition: .2s var(--ease); padding:0 2px;
}
.field input:focus + label,
.field input:not(:placeholder-shown) + label,
.field textarea:focus + label,
.field textarea:not(:placeholder-shown) + label{
  top: 7px; font-size:.72rem; color: var(--accent-3); letter-spacing:.02em;
}
.field--select label{ top: 7px; font-size:.72rem; color: var(--accent-3); }
.field--select select{ padding-top: 22px; color: var(--text); cursor:pointer; }
.field--select select:invalid{ color: transparent; }
.field--select select option{ color:#0d1424; background:#fff; }
.field__chev{ position:absolute; right:14px; top:50%; transform:translateY(-50%); color: var(--muted); pointer-events:none; }

.hp{ position:absolute !important; left:-9999px !important; width:1px; height:1px; opacity:0; }

.btn__spinner{
  width:16px; height:16px; border-radius:50%;
  border:2px solid rgba(4,18,26,.35); border-top-color:#04121a;
  display:none; animation: spin .7s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg); } }
.is-sending .btn__spinner{ display:inline-block; }
.is-sending .btn__label{ opacity:.7; }
.is-sending #submitBtn{ pointer-events:none; }

.form__status{ margin-top:14px; font-size:.92rem; min-height:1.2em; text-align:center; }
.form__status.ok{ color: var(--accent-3); }
.form__status.err{ color:#ff7a8a; }

/* ---------- Footer ---------- */
.footer{ background: var(--bg-2); border-top:1px solid var(--line); padding: 46px 0; }
.footer__inner{ display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap; }
.footer__brand{ display:flex; align-items:center; gap:16px; }
.footer__logo{ height: 46px; width:auto; }
.footer__brand p{ color: var(--muted); font-size:.92rem; }
.footer__links{ display:flex; gap: 22px; }
.footer__links a{ color: var(--muted); font-size:.92rem; transition: color .25s; }
.footer__links a:hover{ color: var(--accent-3); }
.footer__copy{ color: var(--muted-2); font-size:.84rem; width:100%; text-align:center; margin-top:8px; border-top:1px solid var(--line); padding-top:22px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 920px){
  .about__grid{ grid-template-columns: 1fr; }
  .about__head{ position:static; }
  .cards, .cards--duo{ grid-template-columns: 1fr; }
  .contact__grid{ grid-template-columns: 1fr; }
  .realestate__grid{ grid-template-columns: 1fr; }
  .realestate__visual{ order:-1; min-height: 240px; }
  .logo-draw{ width: min(72%, 280px); }
}
@media (max-width: 720px){
  .nav__links{ display:none; }
  .nav__burger{ display:flex; }
  .footer__inner{ flex-direction:column; text-align:center; }
}