/* GT7 Engineer Board – Projektseite im Altibe78-Look (Racing-Gruen + Signalgelb).
   Schriften bewusst lokal/Systemschriften: keine Verbindung zu Google Fonts o. ae. */
:root{
  color-scheme: dark;
  --sans: "Saira", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  --brand:#0f4d30; --hi:#e4f222; --hi-ink:#0a2a1a; --accent:#e4f222;
  --bg:#070908; --panel:#0e1411; --panel-2:#131c17;
  --line:#1e2b24; --line-2:#2c3b32;
  --text:#eef2ec; --text-2:#c3cec6; --muted:#8a998f;
  --shadow:rgba(0,0,0,.6);
}
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]){
    color-scheme: light;
    --accent:#0f4d30;
    --bg:#f3f5f1; --panel:#ffffff; --panel-2:#eef3ee;
    --line:#d3ddd5; --line-2:#b7c5bb;
    --text:#0b2117; --text-2:#2c4236; --muted:#58695e;
    --shadow:rgba(11,33,23,.16);
  }
}
:root[data-theme="light"]{
  color-scheme: light;
  --accent:#0f4d30;
  --bg:#f3f5f1; --panel:#ffffff; --panel-2:#eef3ee;
  --line:#d3ddd5; --line-2:#b7c5bb;
  --text:#0b2117; --text-2:#2c4236; --muted:#58695e;
  --shadow:rgba(11,33,23,.16);
}

*{ box-sizing:border-box; }
/* Bilder je Farbschema: th-d = dunkel, th-l = hell (versteckte Bilder laedt der Browser per lazy nicht) */
img.th-l{ display:none !important; }
:root[data-theme="light"] img.th-d{ display:none !important; }
:root[data-theme="light"] img.th-l{ display:block !important; }
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]) img.th-d{ display:none !important; }
  :root:not([data-theme="dark"]) img.th-l{ display:block !important; }
}
html{ scroll-behavior:smooth; scroll-padding-top:72px; }
body{ margin:0; background:var(--bg); color:var(--text); font-family:var(--sans); font-size:16px; line-height:1.6; }
img{ max-width:100%; display:block; }
a{ color:var(--accent); }
.wrap{ max-width:1180px; margin:0 auto; padding:0 16px; }
.small{ font-size:13px; color:var(--muted); }

/* Kopfzeile */
.top{ position:sticky; top:0; z-index:5; background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:blur(8px); border-bottom:1px solid var(--line); }
.top::after{ content:""; display:block; height:3px; background:linear-gradient(90deg, var(--brand) 0 55%, var(--hi) 55%); }
.top-in{ display:flex; align-items:center; justify-content:space-between; gap:12px; min-height:58px; }
.logo{ display:flex; align-items:center; gap:10px; text-decoration:none; color:var(--muted); font-size:12px;
  letter-spacing:.18em; text-transform:uppercase; font-weight:600; }
.logo img{ height:26px; width:auto; }
nav{ display:flex; align-items:center; gap:4px; }
nav a{ color:var(--text-2); text-decoration:none; font-style:italic; font-weight:800; text-transform:uppercase;
  font-size:13px; padding:6px 10px; letter-spacing:.03em; }
nav a:hover{ color:var(--text); box-shadow:inset 0 -3px 0 var(--hi); }
#theme{ font:600 12px var(--sans); color:var(--text); background:var(--panel-2); border:1px solid var(--line-2);
  border-radius:6px; padding:5px 10px; cursor:pointer; margin-left:6px; }

/* Knoepfe, Abzeichen */
.btn{ display:inline-block; text-decoration:none; font-style:italic; font-weight:800; text-transform:uppercase;
  letter-spacing:.03em; padding:12px 22px; color:var(--text); border:1px solid var(--line-2); background:var(--panel);
  clip-path:polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%); }
.btn.primary{ background:var(--hi); color:var(--hi-ink); border-color:var(--hi); }
.btn:hover{ filter:brightness(1.08); }
.btn.big{ font-size:18px; padding:16px 30px; }
.badge{ display:inline-block; font-size:12px; font-weight:700; letter-spacing:.12em; text-transform:uppercase;
  color:var(--hi-ink); background:var(--hi); padding:3px 10px; transform:skewX(-12deg); }

/* Kopfbereich */
.hero{ display:grid; grid-template-columns:1fr 1.15fr; gap:32px; align-items:center; padding-top:56px; padding-bottom:40px; }
h1{ font-size:clamp(34px, 5vw, 58px); line-height:1.02; margin:16px 0 18px; font-style:italic; font-weight:900;
  text-transform:uppercase; letter-spacing:-.01em; }
h1 em{ color:var(--accent); }
.lead{ font-size:18px; color:var(--text-2); margin:0 0 24px; max-width:520px; }
.cta{ display:flex; gap:12px; flex-wrap:wrap; }
.facts{ list-style:none; padding:0; margin:28px 0 0; display:flex; gap:28px; flex-wrap:wrap; color:var(--muted); font-size:14px; }
.facts b{ display:block; color:var(--text); font-size:26px; font-style:italic; font-weight:900; line-height:1.1; }
.hero-img{ width:100%; border-radius:6px; }

/* Abschnitte */
section{ padding-top:40px; padding-bottom:40px; }
h2.sec, .dl h2{ font-size:clamp(26px, 3.4vw, 36px); font-style:italic; font-weight:900; text-transform:uppercase; margin:0 0 28px; }
h2.sec::before{ content:""; display:inline-block; width:26px; height:7px; margin-right:12px; vertical-align:8px;
  background:var(--hi); transform:skewX(-30deg); box-shadow:0 0 0 1px var(--brand); }

.feat{ display:grid; grid-template-columns:1.5fr 1fr; gap:36px; align-items:center; margin:0 0 64px; }
.feat.rev{ grid-template-columns:1fr 1.5fr; }
.feat.rev figure{ order:2; }
.feat figure{ margin:0; }
.shot{ width:100%; border-radius:8px; border:1px solid var(--line-2); box-shadow:0 18px 40px var(--shadow); }
.num{ display:inline-block; font-style:italic; font-weight:900; font-size:13px; color:var(--hi-ink); background:var(--hi);
  padding:1px 8px; transform:skewX(-12deg); }
h3{ font-size:28px; font-style:italic; font-weight:900; text-transform:uppercase; margin:10px 0 8px; line-height:1.1; }
.feat p{ color:var(--text-2); margin:0 0 12px; }
.feat ul{ margin:0; padding-left:0; list-style:none; }
.feat li{ position:relative; padding-left:20px; margin:6px 0; color:var(--text-2); }
.feat li::before{ content:""; position:absolute; left:0; top:.7em; width:10px; height:3px; background:var(--hi);
  transform:skewX(-30deg); box-shadow:0 0 0 1px var(--brand); }
.feat li b{ color:var(--text); }

/* Race Engineer: Sprechblasen statt Screenshot */
.voice{ background:var(--panel); border:1px solid var(--line-2); border-radius:8px; padding:28px; display:flex;
  flex-direction:column; gap:12px; box-shadow:0 18px 40px var(--shadow); }
.bubble{ align-self:flex-start; background:var(--panel-2); border:1px solid var(--line-2); border-left:4px solid var(--hi);
  padding:10px 16px; border-radius:4px 14px 14px 4px; font-size:19px; font-style:italic; font-weight:700; }
.bubble:nth-child(even){ align-self:flex-end; }
.wave{ display:flex; gap:5px; align-items:center; height:44px; margin-top:6px; }
.wave i{ width:6px; background:var(--accent); border-radius:3px; animation:wave 1.1s ease-in-out infinite; }
.wave i:nth-child(3n){ animation-delay:-.3s; } .wave i:nth-child(3n+1){ animation-delay:-.6s; } .wave i:nth-child(4n){ animation-delay:-.9s; }
@keyframes wave{ 0%,100%{ height:8px; } 50%{ height:40px; } }
@media (prefers-reduced-motion: reduce){ .wave i{ animation:none; height:20px; } }

.more{ display:grid; grid-template-columns:repeat(4, 1fr); gap:14px; }
.more div{ background:var(--panel); border:1px solid var(--line); border-radius:8px; padding:16px 18px; }
h4{ margin:0 0 4px; font-style:italic; font-weight:900; text-transform:uppercase; font-size:16px; }
.more p{ margin:0; color:var(--muted); font-size:14px; }

/* Ablauf */
.steps{ list-style:none; padding:0; margin:0 0 32px; display:grid; grid-template-columns:repeat(3, 1fr); gap:14px; }
.steps li{ background:var(--panel); border:1px solid var(--line); border-radius:8px; padding:20px; }
.steps span{ display:inline-block; font-size:28px; font-weight:900; font-style:italic; color:var(--accent); }
.steps p{ margin:4px 0 0; color:var(--text-2); font-size:15px; }
.setup{ margin:0 auto; max-width:900px; }
figcaption{ text-align:center; color:var(--muted); font-size:14px; margin-top:12px; }

/* Download */
.dl{ display:grid; grid-template-columns:1.6fr 1fr; gap:32px; align-items:center; background:var(--panel);
  border:1px solid var(--line-2); border-radius:10px; padding:32px; position:relative; overflow:hidden; }
.dl::before{ content:""; position:absolute; inset:0 auto 0 0; width:6px; background:var(--hi); }
.dl h2{ margin:12px 0 10px; }
.dl p, .dl li{ color:var(--text-2); }
.dl ol{ padding-left:20px; }
.dl-btns{ display:flex; flex-direction:column; gap:10px; align-items:center; text-align:center; }

footer{ border-top:1px solid var(--line); margin-top:32px; }
.foot{ display:flex; flex-wrap:wrap; gap:8px 24px; justify-content:space-between; align-items:center; padding-top:20px;
  padding-bottom:28px; font-size:14px; color:var(--muted); }

/* Unterseite */
.page{ max-width:820px; padding-top:40px; padding-bottom:40px; }
.page h1{ font-size:clamp(28px, 4vw, 40px); }
.page h2{ font-size:20px; font-style:italic; font-weight:900; text-transform:uppercase; margin:28px 0 8px; }
.page p, .page li{ color:var(--text-2); }

@media (max-width:900px){
  .hero, .feat, .feat.rev, .dl{ grid-template-columns:1fr; }
  .feat.rev figure{ order:0; }
  .hero{ padding-top:32px; }
  .more{ grid-template-columns:1fr 1fr; }
  .steps{ grid-template-columns:1fr; }
  .feat{ gap:18px; margin-bottom:48px; }
}
@media (max-width:560px){
  nav a{ display:none; }
  .logo span{ display:none; }
  .more{ grid-template-columns:1fr; }
  .dl{ padding:22px; }
  .btn.big{ font-size:16px; padding:14px 22px; }
}

/* ---------- Baender: Abschnitte abwechselnd hell/dunkel (feste Farben, kein Umschalter) ---------- */
.t-dark{
  --accent:#e4f222;
  --bg:#070908; --panel:#0e1411; --panel-2:#131c17;
  --line:#1e2b24; --line-2:#2c3b32;
  --text:#eef2ec; --text-2:#c3cec6; --muted:#8a998f;
  --shadow:rgba(0,0,0,.6);
}
.t-light{
  --accent:#0f4d30;
  --bg:#f3f5f1; --panel:#ffffff; --panel-2:#eef3ee;
  --line:#d3ddd5; --line-2:#b7c5bb;
  --text:#0b2117; --text-2:#2c4236; --muted:#58695e;
  --shadow:rgba(11,33,23,.16);
}
.band{ background:var(--bg); color:var(--text); box-shadow:0 0 0 100vmax var(--bg); clip-path:inset(0 -100vmax); }
.feat.band{ margin:0; padding-top:64px; padding-bottom:64px; }
#funktionen{ padding-bottom:0; }
.more.band{ padding-top:48px; padding-bottom:48px; }