/* ============================================================
   APTUS – Additive Components
   Stylesheet · minimalistisch / technisch / Schwarz-Weiß
   ============================================================ */

/* ---- 1. Design-Tokens ---------------------------------- */
:root {
  --ink:        #0e0e0f;
  --ink-soft:   #57575b;
  --ink-faint:  #9a9a9e;
  --paper:      #fbfbf9;
  --paper-2:    #f1f0ec;
  --line:       rgba(14, 14, 15, .12);
  --line-soft:  rgba(14, 14, 15, .07);
  --accent:     #c4531c;            /* sehr sparsam: Hover / Pfeile      */

  --font-display: "Sora", sans-serif;
  --font-body:    "IBM Plex Sans", sans-serif;
  --font-mono:    "IBM Plex Mono", monospace;

  --maxw: 1180px;
  --pad:  clamp(1.25rem, 5vw, 4rem);

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---- 2. Reset ------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  font-size: clamp(1rem, .96rem + .2vw, 1.075rem);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---- 3. Hilfsklassen ----------------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: inline-flex;
  align-items: center;
  gap: .6rem;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--ink);
  display: inline-block;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.08; letter-spacing: -.015em; }

.section { padding-block: clamp(4.5rem, 10vw, 8.5rem); position: relative; }
.section--alt { background: var(--paper-2); }

/* Sanfte Einblend-Animation beim Scrollen */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---- 4. Kopfzeile / Navigation ------------------------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem var(--pad);
  background: rgba(251, 251, 249, 0);
  transition: background .4s var(--ease), box-shadow .4s var(--ease), padding .4s var(--ease);
}
.site-header.is-stuck {
  background: rgba(251, 251, 249, .82);
  backdrop-filter: saturate(140%) blur(12px);
  box-shadow: 0 1px 0 var(--line);
  padding-block: .8rem;
}
.site-header .logo {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
}
.site-header .logo img { height: 65px; width: auto; }

.nav { display: flex; align-items: center; gap: clamp(1.2rem, 3vw, 2.6rem); }
.nav a {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  position: relative;
  transition: color .25s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 1px; background: var(--ink);
  transition: width .3s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after { width: 100%; }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: .4rem; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: transform .3s var(--ease), opacity .3s var(--ease); }

/* ---- 5. Hero ------------------------------------------- */
.hero {
  min-height: 100svh;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding-top: 6rem;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; opacity: .9; }
.hero-bg svg { width: 100%; height: 100%; }
.hero-bg path { fill: none; stroke: var(--ink); stroke-width: 1; opacity: .14; }

.hero .wrap { position: relative; z-index: 2; }
.hero-inner { max-width: 880px; }
.hero h1 {
  font-size: clamp(2.4rem, 1.2rem + 5.4vw, 5.4rem);
  margin: 1.4rem 0 1.2rem;
}
.hero h1 em { font-style: italic; font-weight: 500; }
.hero .lede {
  font-size: clamp(1.05rem, 1rem + .5vw, 1.4rem);
  color: var(--ink-soft);
  max-width: 46ch;
  font-weight: 300;
}
.hero .spec {
  font-family: var(--font-mono);
  font-size: .8rem; letter-spacing: .1em;
  color: var(--ink); margin-top: 2.4rem;
  display: flex; flex-wrap: wrap; gap: .6rem 1.4rem;
}
.hero .spec span { display: inline-flex; align-items: center; gap: .5rem; }
.hero .spec span::before { content: "—"; color: var(--ink-faint); }

.btn {
  display: inline-flex; align-items: center; gap: .7rem;
  margin-top: 2.6rem;
  font-family: var(--font-mono); font-size: .82rem;
  letter-spacing: .12em; text-transform: uppercase;
  padding: .95rem 1.6rem;
  border: 1px solid var(--ink);
  background: var(--ink); color: var(--paper);
  transition: background .3s var(--ease), color .3s var(--ease), gap .3s var(--ease);
}
.btn:hover { background: transparent; color: var(--ink); gap: 1.1rem; }
.btn .arr { transition: transform .3s var(--ease); }
.btn:hover .arr { transform: translateX(4px); }

.scroll-cue {
  position: absolute; left: 50%; bottom: 2rem; transform: translateX(-50%);
  z-index: 2; font-family: var(--font-mono); font-size: .68rem;
  letter-spacing: .2em; text-transform: uppercase; color: var(--ink-faint);
  display: flex; flex-direction: column; align-items: center; gap: .6rem;
}
.scroll-cue .dot { width: 1px; height: 38px; background: linear-gradient(var(--ink-faint), transparent); animation: cue 2.4s var(--ease) infinite; }
@keyframes cue { 0%,100% { transform: scaleY(.4); opacity: .4; transform-origin: top; } 50% { transform: scaleY(1); opacity: 1; transform-origin: top; } }

/* ---- 6. Sektionskopf ----------------------------------- */
.sec-head { max-width: 720px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.sec-head h2 { font-size: clamp(1.9rem, 1.2rem + 2.6vw, 3.2rem); margin: 1rem 0 1.1rem; }
.sec-head p { color: var(--ink-soft); font-size: 1.1rem; font-weight: 300; }

/* ---- 7. Vision / Produkt ------------------------------- */
.vision-grid {
  display: grid; grid-template-columns: 1.1fr .9fr;
  gap: clamp(2rem, 5vw, 4.5rem); align-items: center;
}
.vision-claim {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(1.5rem, 1.1rem + 1.8vw, 2.4rem);
  line-height: 1.25; letter-spacing: -.01em; margin-bottom: 1.6rem;
}
.vision-claim .arrow { color: var(--accent); font-style: normal; }
.vision-text p + p { margin-top: 1.1rem; color: var(--ink-soft); }

.vision-media { position: relative; }
.vision-media img { width: 100%; filter: grayscale(1) contrast(1.02); border: 1px solid var(--line); }
.vision-media figcaption {
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-faint); margin-top: .8rem;
}

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: clamp(3rem, 6vw, 5rem); border-top: 1px solid var(--line); }
.feature { padding: 2rem 1.6rem 0; border-left: 1px solid var(--line); }
.feature:first-child { border-left: 0; padding-left: 0; }
.feature .num { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .2em; color: var(--ink-faint); }
.feature h3 { font-size: 1.2rem; margin: .8rem 0 .5rem; }
.feature p { color: var(--ink-soft); font-size: .96rem; }

/* ---- 8. Team ------------------------------------------- */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1.2rem, 2.5vw, 2rem); }
.member figure { overflow: hidden; }
.member img {
  width: 100%; aspect-ratio: 1; object-fit: cover;
  filter: grayscale(1) contrast(1.03);
  transition: filter .5s var(--ease), transform .6s var(--ease);
}
.member:hover img { filter: grayscale(0); transform: scale(1.03); }
.member .name { font-family: var(--font-display); font-weight: 600; margin-top: 1rem; font-size: 1.05rem; }
.member .role { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); margin-top: .2rem; }

.advisor { margin-top: clamp(2.5rem, 5vw, 4rem); padding-top: clamp(2.5rem, 5vw, 4rem); border-top: 1px solid var(--line); display: flex; align-items: center; gap: clamp(1.5rem, 4vw, 3rem); flex-wrap: wrap; }
.advisor img { width: 120px; height: 120px; object-fit: cover; border-radius: 50%; filter: grayscale(1); }
.advisor .name { font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; }
.advisor .role { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); margin-top: .2rem; }

/* ---- 9. Kontakt / Formular ----------------------------- */
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.contact-info p { color: var(--ink-soft); font-weight: 300; margin-bottom: 1.8rem; }
.contact-mail { font-family: var(--font-mono); font-size: 1.05rem; display: inline-flex; align-items: center; gap: .6rem; padding-bottom: 4px; border-bottom: 1px solid var(--ink); transition: color .25s var(--ease), border-color .25s var(--ease); }
.contact-mail:hover { color: var(--accent); border-color: var(--accent); }

.form-card { border: 1px solid var(--line); background: var(--paper); padding: clamp(1.5rem, 4vw, 2.5rem); }
.form-card .form-label { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 1rem; }
/* Platzhalter, bis das Tally-Formular eingebettet ist */
.form-placeholder {
  border: 1px dashed var(--line); padding: 2.5rem 1.5rem; text-align: center;
  color: var(--ink-faint); font-family: var(--font-mono); font-size: .85rem; line-height: 1.8;
  background: repeating-linear-gradient(135deg, transparent, transparent 9px, var(--line-soft) 9px, var(--line-soft) 10px);
}
.form-iframe-wrap iframe { width: 100%; border: 0; }
.consent-note { font-size: .78rem; color: var(--ink-faint); margin-top: 1rem; line-height: 1.6; }
.consent-note a { text-decoration: underline; }

/* ---- 10. Fußzeile -------------------------------------- */
.site-footer { background: var(--ink); color: var(--paper); padding-block: clamp(3rem, 6vw, 5rem) 2rem; }
.footer-fund { background: #fff; border-radius: 6px; padding: 1.5rem 1.8rem; display: inline-block; margin-bottom: 3rem; }
.footer-fund .fund-label { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 1rem; }
.footer-fund img { max-height: 140px; width: auto; }
.footer-main { display: flex; justify-content: space-between; align-items: flex-end; gap: 2rem; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,.14); padding-top: 2.2rem; }
.footer-main .logo img { height: 28px; }
.footer-links { display: flex; gap: 1.8rem; font-family: var(--font-mono); font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; }
.footer-links a { color: rgba(255,255,255,.7); transition: color .25s var(--ease); }
.footer-links a:hover { color: #fff; }
.footer-copy { font-family: var(--font-mono); font-size: .72rem; color: rgba(255,255,255,.45); margin-top: 2rem; letter-spacing: .04em; }

/* ---- 11. Rechtsseiten (Impressum/Datenschutz) ---------- */
.legal { padding-top: 9rem; padding-bottom: 6rem; }
.legal h1 { font-size: clamp(2rem, 1.4rem + 2.4vw, 3rem); margin-bottom: 2.5rem; }
.legal h2 { font-size: 1.3rem; margin: 2.5rem 0 .8rem; }
.legal h3 { font-size: 1.05rem; margin: 1.6rem 0 .5rem; }
.legal p, .legal li { color: var(--ink-soft); max-width: 70ch; margin-bottom: .9rem; }
.legal ul { list-style: disc; padding-left: 1.3rem; }
.legal .placeholder { background: #fff6ed; border-left: 3px solid var(--accent); padding: .4rem .8rem; color: var(--accent); font-family: var(--font-mono); font-size: .85rem; }
.legal a { text-decoration: underline; }
.back-link { font-family: var(--font-mono); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; display: inline-flex; gap: .5rem; margin-bottom: 3rem; color: var(--ink-soft); }
.back-link:hover { color: var(--ink); }

/* ---- 12. Responsive ------------------------------------ */
@media (max-width: 860px) {
  .vision-grid, .contact-grid { grid-template-columns: 1fr; }
  .vision-media { order: -1; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: 1fr; }
  .feature { border-left: 0; border-top: 1px solid var(--line); padding: 1.6rem 0 0; }
  .feature:first-child { border-top: 0; }

  .nav {
    position: fixed; inset: 0 0 0 auto; width: min(78vw, 320px);
    background: var(--paper); flex-direction: column; justify-content: center;
    align-items: flex-start; padding: 0 2.5rem; gap: 2rem;
    transform: translateX(100%); transition: transform .4s var(--ease);
    box-shadow: -20px 0 60px rgba(0,0,0,.08);
  }
  .nav.is-open { transform: none; }
  .nav a { font-size: 1rem; }
  .nav-toggle { display: block; z-index: 60; position: relative; }
  body.menu-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  body.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
  body.menu-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .footer-main { align-items: flex-start; }
  .footer-fund img { max-height: 90px; }
}
@media (max-width: 480px) {
  .team-grid { grid-template-columns: 1fr 1fr; }
}

/* ---- 13. Reduzierte Bewegung --------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}