/* KI-Werkhalle – Layout: einspaltige Leseführung mit breiten "Hallenfeldern", Signalorange nur für Handlungen */
@font-face {
  font-family: "Archivo";
  src: url("fonts/archivo.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/plex-mono.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

:root {
  --bg: #eef0ed;          /* Hallenboden, leicht grünstichiges Grau */
  --surface: #f9faf8;
  --ink: #1a1f22;
  --muted: #5a6468;
  --line: #cfd5d2;
  --steel: #2f4a5c;        /* Stahlträger */
  --signal: #e2560f;       /* Signalorange */
  --signal-ink: #ffffff;
  --signal-soft: #fbe3d6;
  --ok: #2e7d4f;
  --warn: #c9930a;
  --stop: #c0392b;
  --font: "Archivo", "Helvetica Neue", Arial, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --wrap: 1080px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14191b; --surface: #1b2225; --ink: #e8ecea; --muted: #9aa6a9; --line: #2e383b;
    --steel: #8fb3c9; --signal: #ff7a33; --signal-ink: #1a1f22; --signal-soft: #3a2418;
    --ok: #5fc48a; --warn: #e6b53a; --stop: #ef7062;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #14191b; --surface: #1b2225; --ink: #e8ecea; --muted: #9aa6a9; --line: #2e383b;
  --steel: #8fb3c9; --signal: #ff7a33; --signal-ink: #1a1f22; --signal-soft: #3a2418;
  --ok: #5fc48a; --warn: #e6b53a; --stop: #ef7062;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
}
img { max-width: 100%; }
a { color: inherit; text-decoration-color: var(--signal); text-underline-offset: 3px; }
a:hover { color: var(--signal); }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}

/* Kopfzeile */
.top { border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 18px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; font-stretch: 112%; letter-spacing: -0.01em; font-size: 1.15rem; }
.brand .mark { width: 30px; height: 30px; flex: none; }
.nav { display: flex; gap: 22px; flex-wrap: wrap; font-size: 0.95rem; }
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover { color: var(--ink); }

/* Eyebrow / Labels */
.label { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }

/* Hero */
.hero .wrap { padding-block: 72px 56px; display: grid; gap: 28px; }
.hero h1 {
  font-size: clamp(2.3rem, 6vw, 4.4rem);
  line-height: 1.02;
  font-weight: 850;
  font-stretch: 118%;
  letter-spacing: -0.025em;
  margin: 0;
  max-width: 15ch;
  text-wrap: balance;
}
.hero h1 em { font-style: normal; color: var(--signal); }
.hero p.lead { font-size: 1.2rem; max-width: 58ch; margin: 0; color: var(--muted); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font: inherit; font-weight: 700; font-size: 1rem;
  padding: 12px 20px; border-radius: 4px; text-decoration: none; cursor: pointer;
  border: 2px solid var(--ink); background: transparent; color: var(--ink);
}
.btn.primary { background: var(--signal); border-color: var(--signal); color: var(--signal-ink); }
.btn.primary:hover { filter: brightness(1.05); color: var(--signal-ink); }
.btn:hover { color: var(--ink); }

/* Hallenmarkierung als Trenner */
.marking { height: 10px; background: repeating-linear-gradient(90deg, var(--line) 0 48px, transparent 48px 72px); }

section { padding-block: 64px; }
section h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  font-weight: 800; font-stretch: 112%; letter-spacing: -0.015em;
  line-height: 1.12; margin: 6px 0 14px; max-width: 24ch; text-wrap: balance;
}
section .intro { max-width: 62ch; color: var(--muted); margin: 0 0 32px; }

/* Themenfelder */
.fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); border-top: 2px solid var(--ink); }
.field { padding: 22px 22px 26px 0; border-bottom: 1px solid var(--line); min-width: 0; }
.field + .field { padding-left: 22px; border-left: 1px solid var(--line); }
@media (max-width: 560px) { .field + .field { padding-left: 0; border-left: 0; } }
.field .num { font-family: var(--mono); font-size: 0.8rem; color: var(--signal); }
.field h3 { font-size: 1.15rem; font-weight: 750; margin: 6px 0 8px; line-height: 1.25; }
.field p { margin: 0; color: var(--muted); font-size: 0.98rem; }

/* Prozessstrecke */
.flow { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 28px; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; counter-reset: s; }
.steps li { position: relative; padding: 16px 18px 16px 0; min-width: 0; }
.steps li + li { padding-left: 18px; border-left: 2px dashed var(--line); }
.steps .k { font-family: var(--mono); font-size: 0.75rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.steps strong { display: block; font-size: 1.05rem; margin: 4px 0 4px; }
.steps span.d { color: var(--muted); font-size: 0.95rem; }
.steps li.check strong { color: var(--steel); }
@media (max-width: 760px) {
  .steps { grid-template-columns: minmax(0, 1fr); }
  .steps li + li { padding-left: 0; border-left: 0; border-top: 2px dashed var(--line); }
}
.lights { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 0.95rem; }
.lights span { display: inline-flex; align-items: center; gap: 8px; }
.lights i { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.flow .note { margin: 14px 0 0; color: var(--muted); font-size: 0.95rem; max-width: 70ch; }

/* Zahlen */
.facts { margin-top: 28px; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 28px; }
.fact { border-left: 3px solid var(--steel); padding-left: 18px; }
.fact .big { font-size: clamp(2.6rem, 6vw, 3.6rem); font-weight: 850; font-stretch: 115%; line-height: 1; font-variant-numeric: tabular-nums; }
.fact p { margin: 8px 0 6px; max-width: 40ch; }
.fact .src { font-family: var(--mono); font-size: 0.75rem; color: var(--muted); }

/* Über mich */
.about { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 32px; align-items: start; }
@media (max-width: 600px) { .about { grid-template-columns: minmax(0, 1fr); } }
.portrait { width: 180px; height: 180px; border-radius: 6px; object-fit: cover; display: block; border-bottom: 4px solid var(--signal); }
@media (max-width: 600px) { .portrait { width: 140px; height: 140px; } }
.initials {
  width: 120px; height: 120px; border-radius: 4px; background: var(--steel); color: var(--bg);
  display: grid; place-items: center; font-weight: 850; font-stretch: 120%; font-size: 2.6rem; letter-spacing: -0.02em;
}
.about p { max-width: 62ch; margin: 0 0 14px; }
.cv { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 6px; }
.cv li { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 12px; font-size: 0.97rem; }
.cv li span:first-child { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); padding-top: 3px; }

/* Newsletter */
.signup { background: var(--ink); color: var(--bg); border-radius: 6px; padding: clamp(24px, 5vw, 48px); display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 32px; }
@media (max-width: 760px) { .signup { grid-template-columns: minmax(0, 1fr); } }
.signup h2 { color: var(--bg); margin-top: 0; }
.signup p { color: color-mix(in srgb, var(--bg) 78%, transparent); max-width: 52ch; margin: 0 0 10px; }
.signup ul { margin: 0; padding-left: 20px; color: color-mix(in srgb, var(--bg) 85%, transparent); }
.signup form { display: grid; gap: 12px; align-content: start; }
.signup label { font-size: 0.9rem; font-weight: 600; }
.signup input[type="email"] {
  font: inherit; padding: 12px 14px; border-radius: 4px; border: 1px solid color-mix(in srgb, var(--bg) 35%, transparent);
  background: color-mix(in srgb, var(--bg) 8%, transparent); color: var(--bg); width: 100%;
}
.signup .consent { display: flex; gap: 10px; align-items: flex-start; font-size: 0.85rem; color: color-mix(in srgb, var(--bg) 78%, transparent); }
.signup .consent input { margin-top: 4px; accent-color: var(--signal); }
.signup .consent a { color: var(--bg); }
.signup .alt { font-size: 0.88rem; color: color-mix(in srgb, var(--bg) 70%, transparent); }
.signup .alt a { color: var(--bg); }
.formmsg { font-size: 0.9rem; min-height: 1.2em; }

/* Fuß */
footer { border-top: 1px solid var(--line); margin-top: 32px; }
footer .wrap { padding-block: 28px; display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; font-size: 0.9rem; color: var(--muted); }
footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--muted); }

/* Rechtstexte */
.legal .wrap { padding-block: 48px 64px; max-width: 760px; }
.legal h1 { font-size: 2.2rem; font-weight: 850; font-stretch: 115%; margin: 0 0 24px; }
.legal h2 { font-size: 1.2rem; margin: 32px 0 8px; }
.legal p, .legal li { max-width: 68ch; }
.todo { background: var(--signal-soft); border-left: 3px solid var(--signal); padding: 2px 6px; font-family: var(--mono); font-size: 0.85em; }

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }
html { scroll-behavior: smooth; }