/* Schriften lokal eingebunden (DSGVO: keine Verbindung zu Google). Dateien siehe assets/fonts/README.md */
@font-face { font-family: "Archivo"; src: url("../fonts/archivo.woff2") format("woff2"), url("../fonts/Archivo-Variable.ttf") format("truetype"); font-weight: 100 900; font-stretch: 62% 125%; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("../fonts/plex-sans.woff2") format("woff2"), url("../fonts/IBMPlexSans-Variable.ttf") format("truetype"); font-weight: 100 700; font-stretch: 85% 100%; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("../fonts/plex-mono-400.woff2") format("woff2"), url("../fonts/IBMPlexMono-Regular.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("../fonts/plex-mono-500.woff2") format("woff2"), url("../fonts/IBMPlexMono-Medium.ttf") format("truetype"); font-weight: 500; font-display: swap; }
/* Layout: Trassenplan – linke Spalte mit Abschnittsmarke, rechte Inhaltsspalte; Sektionen durch Linien statt Karten getrennt, Hero zeigt den Querschnitt eines Mikrorohrverbands */
/* Lantarex-Palette: #AD5228 · #608775 · #E7DEC2 · #8A836B · #211D17 – dunkles Design */
:root {
  --bg: #211D17;
  --surface: #211D17;
  --ink: #E7DEC2;
  --muted: #8A836B;
  --line: #8A836B;
  --accent: #AD5228;
  --accent-strong: #608775;
  --btn: #E7DEC2;
  --accent-ink: #211D17;
  --signal: #608775;
  --tint: #608775;
  --danger: #FF6B6B;
  --display: "Archivo", "Arial Narrow", Arial, sans-serif;
  --body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  --wrap: 80rem;   /* 1280 px maximale Inhaltsbreite */
  color-scheme: dark;
}

* { box-sizing: border-box; }
body {
  background: var(--bg); color: var(--ink);
  font-family: var(--body); font-size: 1.0625rem; line-height: 1.6;
  padding-inline: 1rem;
}
.wrap { max-width: var(--wrap); margin-inline: auto; }
h1, h2, h3 { font-family: var(--display); line-height: 1.05; margin: 0; text-wrap: balance; }
p { margin: 0; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 2px; }

.label {
  font-family: var(--mono); font-size: .75rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--muted);
}

/* Navigation */
.nav {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  margin-inline: -1rem; padding-inline: 1rem;
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .9rem; }
.brand { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--ink); }
/* Logo als Maske: eine zwischengespeicherte Datei, eingefärbt in der Textfarbe des Farbschemas */
.brand .logo {
  display: block; height: 2.4rem; aspect-ratio: 1214 / 186; background-color: currentColor;
  -webkit-mask: url("../img/lantarex-logo.svg") center / contain no-repeat;
  mask: url("../img/lantarex-logo.svg") center / contain no-repeat;
}
.brand span { font-family: var(--mono); font-size: .72rem; color: var(--muted); }
@media (max-width: 520px) { .brand .logo { height: 2rem; } }   /* Handy: Logo und Menü-Knopf passen nebeneinander */
.nav ul { display: flex; gap: 1.5rem; list-style: none; margin: 0; padding: 0; font-size: .95rem; }
.nav ul a { text-decoration: none; color: var(--muted); }
.nav ul a:hover { color: var(--ink); }
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font: 600 .95rem var(--body); text-decoration: none; cursor: pointer;
  background: var(--btn); color: var(--accent-ink);
  border: 0; border-radius: 3px; padding: .75rem 1.15rem;
  transition: transform .15s ease, filter .15s ease;
}
.btn:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); }
.nav .btn { white-space: nowrap; }
/* Sprungziele nicht unter der feststehenden Kopfzeile verstecken */
html { scroll-padding-top: 6rem; }

/* Tablet hochkant: Kopfzeile etwas kompakter, damit „Projekt anfragen“ einzeilig bleibt */
@media (min-width: 761px) and (max-width: 1000px) {
  .brand .logo { height: 1.9rem; }
  .nav ul { gap: 1rem; font-size: .9rem; }
}

/* Handy: Menü-Knopf statt Menüzeile */
.menu { display: none; }
.menu summary {
  list-style: none; display: inline-flex; align-items: center; gap: .5rem; min-height: 44px;
  padding: .55rem .9rem; border: 1px solid var(--line); border-radius: 3px;
  color: var(--ink); font-weight: 600; font-size: .95rem; cursor: pointer;
}
.menu summary::-webkit-details-marker { display: none; }
.menu summary svg { width: 1.15rem; height: 1.15rem; }
.menu[open] summary { background: var(--surface); }
.menu-panel {
  position: absolute; left: 0; right: 0; top: 100%;
  background: var(--bg); border-bottom: 1px solid var(--line);
  padding: .25rem 1rem 1.25rem; box-shadow: 0 14px 28px rgba(0, 0, 0, .3);
}
.nav .menu-panel ul { display: block; list-style: none; margin: 0 0 1rem; padding: 0; font-size: 1rem; }
.menu-panel li a { display: block; padding: .9rem 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; font-size: 1.05rem; }
.menu-panel .btn { width: 100%; justify-content: center; min-height: 48px; }

/* Schnellleiste unten (nur Handy) */
.schnellleiste { display: none; }

@media (max-width: 760px) {
  .nav .wrap > ul, .nav .wrap > .btn { display: none; }   /* nur die normale Menüzeile, nicht die Liste im Handy-Menü */
  .menu { display: block; }
  .schnellleiste {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; display: flex; gap: .6rem;
    padding: .6rem 1rem calc(.6rem + env(safe-area-inset-bottom, 0px));
    background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(8px);
    border-top: 1px solid var(--line); transition: transform .25s ease;
  }
  .schnellleiste .btn { flex: 1; justify-content: center; min-height: 48px; }
  .schnellleiste.weg { transform: translateY(110%); }
  body:has(.schnellleiste) { padding-bottom: calc(4.6rem + env(safe-area-inset-bottom, 0px)); }

  /* Größere Tippflächen (mind. 44 px) für Telefon, E-Mail, Links in Hinweisen und Fußzeile */
  .contact dd a { display: inline-block; padding-block: .7rem; }
  .note a { padding-block: .7rem; }
  .foot a { display: inline-block; padding-block: .75rem; }
  .captcha-box input { width: 1.5rem; height: 1.5rem; }
}
@media (prefers-reduced-motion: reduce) { .schnellleiste { transition: none; } }

/* Hero */
.hero { padding-block: 4.5rem 3.5rem; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 3rem; align-items: end; }
.hero h1 { font-size: clamp(2.6rem, 6.4vw, 5.2rem); font-stretch: 72%; font-weight: 800; letter-spacing: -.01em; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lead { margin-top: 1.5rem; max-width: 34rem; color: var(--muted); font-size: 1.15rem; font-weight: 500; }
.hero .actions { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: .75rem; }

/* Querschnitt Mikrorohrverband */
.drawing {
  background: var(--bg); border: 1px solid var(--line); border-radius: 3px;
  padding: 1.25rem; font-family: var(--mono); font-size: .78rem; color: var(--muted); margin: 0;
}
.drawing svg { display: block; width: 100%; height: auto; max-width: 100%; }
.drawing .cap { display: flex; justify-content: space-between; gap: 1rem; margin-top: .75rem; border-top: 1px solid var(--line); padding-top: .6rem; flex-wrap: wrap; }
.drawing .cap b { color: var(--ink); font-weight: 500; }
.drawing .blow { border-bottom: 1px solid var(--line); padding-bottom: .5rem; margin-bottom: .5rem; }
/* Farben der 2D-Grafik (früher style-Attribute; die CSP erlaubt keine Inline-Styles) */
.drawing .sv-f-ink { fill: var(--ink); }
.drawing .sv-f-muted { fill: var(--muted); }
.drawing .sv-f-signal { fill: var(--signal); }
.drawing .sv-s-ink { stroke: var(--ink); }
.drawing .sv-s-accent { stroke: var(--accent); }
.drawing .sv-s-signal { stroke: var(--signal); }
.drawing .sv-knoten { fill: var(--bg); stroke: var(--muted); }

@media (max-width: 860px) { .hero { grid-template-columns: 1fr; padding-block: 3rem 2.5rem; } }

/* Kennzahlen */
.figures { border-block: 1px solid var(--line); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.figures div { padding: 1.5rem 1.25rem; border-left: 1px solid var(--line); display: grid; gap: .25rem; }
.figures div:first-child { border-left: 0; padding-left: 0; }
.figures strong { font-family: var(--display); font-stretch: 80%; font-weight: 700; font-size: 2.2rem; font-variant-numeric: tabular-nums; line-height: 1; }
@media (max-width: 760px) {
  .figures { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .figures div { border-left: 0; padding-left: 0; }
  .figures div:nth-child(n+3) { border-top: 1px solid var(--line); }
}

/* Sektionen */
section.block { padding-block: 5rem 1rem; display: grid; grid-template-columns: 14rem minmax(0, 1fr); gap: 2.5rem; }
section.block > header { display: grid; gap: .75rem; align-content: start; }
section.block h2 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); font-stretch: 78%; font-weight: 750; }
.intro { max-width: 40rem; color: var(--muted); margin-bottom: 2rem; }
@media (max-width: 860px) { section.block { grid-template-columns: 1fr; gap: 1.25rem; padding-block: 3.5rem .5rem; } }

/* Leistungen */
.services { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 2px solid var(--signal); }
.service { padding: 1.5rem 1.5rem 1.75rem 0; border-bottom: 1px solid var(--line); display: grid; gap: .6rem; align-content: start; }
.service:nth-child(even) { padding-left: 1.5rem; border-left: 1px solid var(--line); }
.service h3 { font-size: 1.35rem; font-stretch: 90%; font-weight: 700; }
.service p { color: var(--muted); }
.spec { font-family: var(--mono); font-size: .8rem; color: var(--ink); display: flex; flex-wrap: wrap; gap: .4rem 1rem; }
.spec span::before { content: "▪ "; color: var(--signal); }
@media (max-width: 640px) {
  .services { grid-template-columns: 1fr; }
  .service, .service:nth-child(even) { padding-left: 0; border-left: 0; padding-right: 0; }
}

/* Ablauf */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.5rem; counter-reset: s; }
.steps li { counter-increment: s; display: grid; gap: .5rem; align-content: start; border-top: 3px solid var(--accent); padding-top: 1rem; }
.steps li::before { content: "Schritt " counter(s); font-family: var(--mono); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-strong); }
.steps h3 { font-size: 1.15rem; font-stretch: 90%; font-weight: 700; }
.steps p { color: var(--muted); font-size: .97rem; }
@media (max-width: 860px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .steps { grid-template-columns: 1fr; } }

/* Auftraggeber */
.sectors { display: flex; flex-wrap: wrap; gap: .6rem; }
.sectors span { border: 1px solid var(--tint); background: var(--surface); padding: .5rem .9rem; border-radius: 2px; font-size: .95rem; }

/* Unternehmen */
.about { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 2.5rem; }
.about p + p { margin-top: 1rem; }
.about .text { max-width: 38rem; }
.kit { border-left: 3px solid var(--signal); padding-left: 1.25rem; align-self: start; display: grid; gap: .75rem; }
.kit ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.kit li { display: flex; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--line); padding-bottom: .5rem; font-size: .97rem; }
.kit li span:last-child { font-family: var(--mono); font-size: .82rem; color: var(--muted); text-align: right; }
@media (max-width: 860px) { .about { grid-template-columns: 1fr; } }

/* Kontakt */
.contact { margin-top: 5rem; background: var(--surface); border: 1px solid var(--line); border-radius: 3px; padding: clamp(1.25rem, 4vw, 3rem); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 2.5rem; }
.contact h2 { font-size: clamp(1.9rem, 3.6vw, 2.6rem); font-stretch: 78%; font-weight: 750; }
.contact .info { display: grid; gap: 1.25rem; align-content: start; }
.contact dl { margin: 0; display: grid; gap: .9rem; }
.contact dt { font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.contact dd { margin: 0; user-select: all; }
form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
form .full { grid-column: 1 / -1; }
form .form-fuss { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; justify-content: space-between; }
label { display: grid; gap: .35rem; font-size: .9rem; font-weight: 500; }
input, select, textarea {
  font: inherit; font-size: 1rem; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 3px; padding: .7rem .8rem; width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--ink); outline-offset: 0; border-color: transparent; }
textarea { min-height: 7rem; resize: vertical; }
.note { font-size: .85rem; color: var(--muted); }
.sent { grid-column: 1 / -1; border-left: 3px solid var(--accent); padding: .6rem .9rem; background: var(--bg); font-size: .95rem; }
@media (max-width: 860px) { .contact { grid-template-columns: 1fr; } }
@media (max-width: 520px) { form { grid-template-columns: 1fr; } }

/* Footer */
.foot { margin-top: 4rem; border-top: 1px solid var(--line); padding-block: 1.5rem 2.5rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; color: var(--muted); font-size: .88rem; }
.foot nav { display: flex; gap: 1.25rem; }
/* Auf abgesetzten Flächen Nebentexte in der hellen Textfarbe */
.contact, .sectors span { --muted: var(--ink); }

/* 3D-Bühne im Hero: Mikrorohrverband mit einlaufendem Kabel */
.stage { position: relative; aspect-ratio: 1 / 1; max-width: 100%; border: 1px solid var(--line); border-radius: 3px; overflow: hidden; background: var(--bg); }
.stage canvas { display: block; width: 100%; height: 100%; cursor: grab; touch-action: pan-y; }
.stage canvas:active { cursor: grabbing; }
.stage .hud { position: absolute; left: 1rem; top: 1rem; display: grid; gap: .1rem; pointer-events: none; }
.stage .hud strong { font-family: var(--display); font-stretch: 80%; font-weight: 700; font-size: clamp(1.8rem, 3.4vw, 2.6rem); line-height: 1; font-variant-numeric: tabular-nums; }
.stage .cap { position: absolute; left: 1rem; right: 1rem; bottom: .9rem; display: flex; justify-content: space-between; gap: .5rem 1rem; flex-wrap: wrap; font-family: var(--mono); font-size: .75rem; color: var(--muted); pointer-events: none; }
.stage .cap b { color: var(--ink); font-weight: 500; }
.stage .rotate-hint { display: inline-flex; align-items: center; color: var(--ink); opacity: .85; }
.stage > .drawing { position: absolute; inset: 0; border: 0; }

/* Formular: Rückmeldungen vom Server */
.sent.error { border-left-color: var(--danger); color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, var(--bg)); font-weight: 500; }
.field-error { color: var(--danger); font-size: .85rem; font-weight: 500; }
.field-error::before { content: "▲ "; font-size: .7em; vertical-align: .1em; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Rechtliche Seiten (Impressum, Datenschutz) */
body.legal { padding-block: 0; }
.legal .top { border-bottom: 1px solid var(--line); margin-inline: -1rem; padding: .9rem 1rem; }
.legal .top .wrap { max-width: 44rem; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.legal .top a.back { font-size: .9rem; color: var(--muted); }
.legal main { max-width: 44rem; margin-inline: auto; padding-block: 3rem 4rem; display: grid; gap: .8rem; }
.legal h1 { font-size: clamp(2rem, 5vw, 2.8rem); font-stretch: 78%; font-weight: 750; margin: 0 0 1rem; }
.legal h3 { font-size: 1.15rem; font-stretch: 90%; font-weight: 700; margin: 1.25rem 0 0; }
.legal ul { margin: 0; padding-left: 1.2rem; display: grid; gap: .25rem; }
.legal .draft { --muted: var(--ink); border-left: 3px solid var(--signal); padding: .6rem .9rem; background: var(--surface); font-size: .9rem; }
.legal .strong { font-weight: 600; }
.legal .foot { max-width: 44rem; margin-inline: auto; }
/* Impressum und Datenschutz als Fenster über der Seite */
html.legal-open { overflow: hidden; }
.legal-win { width: min(48rem, calc(100% - 2rem)); max-height: min(85vh, 60rem); padding: 0; border: 1px solid var(--line); border-radius: 4px; background: var(--bg); color: var(--ink); display: none; flex-direction: column; overflow: hidden; }
.legal-win[open] { display: flex; }
.legal-win::backdrop { background: rgba(0, 0, 0, .65); }
.legal-bar { flex: none; display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .8rem 1.25rem; border-bottom: 1px solid var(--line); background: var(--surface); }
.legal-bar b { font-family: var(--display); font-stretch: 85%; font-weight: 700; font-size: 1.2rem; }
.legal-content { flex: 1; overflow-y: auto; overscroll-behavior: contain; padding: 1.25rem 1.5rem 2rem; display: grid; gap: .8rem; align-content: start; font-size: .97rem; }
.legal-content h3 { font-size: 1.1rem; font-stretch: 90%; font-weight: 700; margin-top: 1rem; }
.legal-content ul { margin: 0; padding-left: 1.2rem; display: grid; gap: .25rem; }
.legal-content .note { color: var(--muted); }
@media (max-width: 520px) { .legal-win { width: 100%; max-height: 100%; height: 100%; border-radius: 0; } }
@media (prefers-reduced-motion: no-preference) {
  .legal-win[open] { animation: legal-in .18s ease-out; }
  @keyframes legal-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
}
/* Captcha im Kontaktformular */
.captcha { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1rem; }
.captcha-box { display: inline-flex; align-items: center; gap: .7rem; border: 1px solid var(--line); background: var(--bg); border-radius: 3px; padding: .65rem .9rem; cursor: pointer; font-weight: 500; }
.captcha-box input { width: 1.25rem; height: 1.25rem; accent-color: var(--accent); cursor: pointer; }
.captcha-status { font-family: var(--mono); font-size: .78rem; color: var(--muted); }
.captcha.pruefen .captcha-status::before { content: ""; display: inline-block; width: .7rem; height: .7rem; margin-right: .4rem; border: 2px solid var(--muted); border-top-color: transparent; border-radius: 50%; animation: captcha-drehen .8s linear infinite; vertical-align: -1px; }
.captcha.ok .captcha-box { border-color: var(--signal); }
.captcha.ok .captcha-status { color: var(--ink); }
.captcha.ok .captcha-status::before { content: "✓ "; color: var(--signal); }
.captcha-info { font-size: .78rem; color: var(--muted); }
.captcha .field-error { flex-basis: 100%; }
@keyframes captcha-drehen { to { transform: rotate(360deg); } }
/* Fehlerhafte Felder: roter Rahmen */
input[aria-invalid="true"], select[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: var(--danger); box-shadow: 0 0 0 1px var(--danger); }
input[aria-invalid="true"]:focus, textarea[aria-invalid="true"]:focus { outline-color: var(--danger); }
.captcha.has-error .captcha-box { border-color: var(--danger); box-shadow: 0 0 0 1px var(--danger); }