/* DESIGNBEISPIEL 05 – Industrie & Automatisierung · Demo, kein Kundenprojekt
   Dunkelblau und Anthrazit als technische Basis, Weiß und Hellgrau als Fläche, Orange als gezielter Akzent.
   Klare, kantige Formen. Bildbereiche sind gezeichnete Grafiken und Platzhalter für echte Fotos. */

.demo {
  --navy: #0f2740;
  --navy-deep: #0a1c2f;
  --steel: #1e252d;
  --ink: #1a2028;
  --soft: #333b46;
  --line: #d5dae0;
  --mist: #f1f3f5;
  --orange: #ef7d00;
  --orange-dark: #a64f00;
  --pad: clamp(20px, 5vw, 56px);
  --head: "DIN Alternate", "Bahnschrift", "Avenir Next", "Segoe UI", Arial, sans-serif;
  background: #fff; color: var(--ink);
  font-family: "Avenir Next", "Segoe UI", system-ui, Arial, sans-serif;
  font-size: 1.125rem; line-height: 1.6;
}
.demo h1, .demo h2, .demo h3, .demo p, .demo ul, .demo ol, .demo figure { margin: 0; padding: 0; }
.demo h1, .demo h2, .demo h3 { font-family: var(--head); font-weight: 700; line-height: 1.08; letter-spacing: -0.01em; text-wrap: balance; }
.demo h2 { font-size: clamp(1.9rem, 1.3rem + 2.4vw, 3rem); color: var(--navy); }
.demo h3 { font-size: 1.3125rem; line-height: 1.2; color: var(--navy); }
.demo a { color: inherit; }
.demo a:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }
.demo .in { max-width: 1200px; margin: 0 auto; padding-inline: var(--pad); }

/* Kopf */
.demo .head { background: #fff; border-bottom: 1px solid var(--line); }
.demo .head .in { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; padding-block: 16px; }
.demo .logo { display: flex; align-items: center; gap: 12px; margin-right: auto; text-decoration: none; font-family: var(--head); font-weight: 700; font-size: 1.375rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--navy); line-height: 1.1; }
.demo .logo small { display: block; font-family: "Avenir Next", "Segoe UI", Arial, sans-serif; font-size: 0.9375rem; font-weight: 600; letter-spacing: 0.04em; color: var(--soft); text-transform: none; }
.demo .mark { width: 40px; height: 40px; flex: none; background: var(--navy); clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%); position: relative; }
.demo .mark::after { content: ""; position: absolute; left: 9px; right: 9px; bottom: 10px; height: 5px; background: var(--orange); }
.demo .head nav { display: flex; flex-wrap: wrap; gap: 6px 26px; }
.demo .head nav a { text-decoration: none; font-weight: 600; font-size: 1rem; padding: 8px 0; border-bottom: 3px solid transparent; }
.demo .head nav a:hover { border-color: var(--orange); }

/* Schaltflächen */
.demo .btn { display: inline-flex; align-items: center; justify-content: center; text-align: center; min-height: 50px; padding: 12px 24px; background: var(--orange); color: #101820; border: 2px solid var(--orange); font-weight: 700; font-size: 1.0625rem; line-height: 1.2; text-decoration: none; clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%); transition: background-color 0.2s, color 0.2s; }
.demo .btn:hover { background: var(--navy); border-color: var(--navy); color: #fff; }
.demo .btn-line { background: #fff; color: var(--navy); border-color: var(--navy); clip-path: none; }
.demo .btn-line:hover { background: var(--navy); color: #fff; }
.demo .btn-dark { background: var(--navy); border-color: var(--navy); color: #fff; }
.demo .btn-dark:hover { background: var(--steel); border-color: var(--steel); color: #fff; }
.demo .head .btn { min-height: 44px; padding: 8px 18px; font-size: 1rem; }

/* Hero */
.demo .hero { position: relative; overflow: hidden; background: linear-gradient(120deg, #fff 0%, #fff 46%, var(--mist) 100%); color: var(--ink); }
.demo .hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(15, 39, 64, 0.055) 1px, transparent 1px), linear-gradient(90deg, rgba(15, 39, 64, 0.055) 1px, transparent 1px); background-size: 48px 48px; -webkit-mask-image: linear-gradient(90deg, transparent 30%, #000 100%); mask-image: linear-gradient(90deg, transparent 30%, #000 100%); }
.demo .hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 6px; background: var(--orange); }
.demo .hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr); gap: clamp(28px, 5vw, 72px); align-items: center; padding-block: clamp(52px, 8vw, 112px); }
.demo .tag { display: inline-block; font-family: var(--head); font-size: 0.9375rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: #101820; background: var(--orange); padding: 5px 12px; margin-bottom: 22px; }
.demo .hero h1 { font-size: clamp(2.5rem, 1.4rem + 4.6vw, 4.75rem); color: var(--navy); }
.demo .hero h1 .dot { color: var(--orange); }
.demo .lead { margin-top: 22px; font-size: clamp(1.1875rem, 1.05rem + 0.6vw, 1.4375rem); line-height: 1.5; color: var(--soft); max-width: 34ch; }
.demo .btns { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

.demo .visual { position: relative; }
.demo .visual::before { content: ""; position: absolute; left: -3%; bottom: 44px; width: 22%; height: 26%; background: var(--orange); clip-path: polygon(34% 0, 100% 0, 66% 100%, 0 100%); }
.demo .visual-img { position: relative; aspect-ratio: 640 / 432; overflow: hidden; background: var(--navy); clip-path: polygon(15% 0, 100% 0, 100% 100%, 0 100%); box-shadow: 0 30px 60px -34px rgba(15, 39, 64, 0.7); }
.demo .visual img, .demo .panel img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: 60% 50%; }
.demo figcaption { font-size: 0.9375rem; line-height: 1.4; padding: 10px 16px; }
.demo .visual figcaption { color: var(--soft); text-align: right; padding: 10px 0 0; }

/* Arbeitsfelder */
.demo .strip { background: var(--steel); color: #fff; }
.demo .strip ul { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.demo .strip li { padding: 22px clamp(14px, 2.4vw, 28px); border-left: 1px solid rgba(255, 255, 255, 0.2); font-family: var(--head); font-weight: 700; font-size: 1.1875rem; line-height: 1.25; }
.demo .strip li:first-child { border-left: 0; padding-left: 0; }
.demo .strip li span { display: block; font-family: "Avenir Next", "Segoe UI", Arial, sans-serif; font-weight: 400; font-size: 1rem; color: #e3e8ee; margin-top: 4px; }

/* Abschnitte */
.demo .block { padding-block: clamp(56px, 8vw, 108px); }
.demo .alt { background: var(--mist); }
.demo .kicker { display: flex; align-items: center; gap: 12px; font-family: var(--head); font-size: 0.9375rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--orange-dark); margin-bottom: 14px; }
.demo .kicker::before { content: ""; width: 34px; height: 4px; background: var(--orange); }
.demo .sub { margin-top: 16px; color: var(--soft); max-width: 60ch; }

.demo .cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(14px, 1.8vw, 22px); margin-top: clamp(32px, 4vw, 52px); }
.demo .cards article { position: relative; background: #fff; border: 1px solid var(--line); border-top: 5px solid var(--navy); padding: 26px 22px 28px; transition: border-color 0.2s, transform 0.2s; }
.demo .cards article:hover { border-top-color: var(--orange); transform: translateY(-3px); }
.demo .icon { width: 56px; height: 56px; padding: 12px; background: var(--navy); color: #fff; margin-bottom: 18px; clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%); }
.demo .icon .acc { stroke: var(--orange); }
.demo .cards .no { position: absolute; top: 22px; right: 22px; font-family: var(--head); font-weight: 700; font-size: 1rem; letter-spacing: 0.08em; color: var(--soft); }
.demo .cards h3 { margin-bottom: 10px; }
.demo .cards p { color: var(--soft); font-size: 1rem; }

/* Technik, die läuft. */
.demo .split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.demo .panel { background: var(--navy); border: 1px solid var(--navy); clip-path: polygon(34px 0, 100% 0, 100% 100%, 0 100%, 0 34px); }
.demo .panel svg { display: block; width: 100%; height: auto; }
.demo .panel figcaption { background: var(--navy-deep); color: #eef2f7; }
.demo .checks { list-style: none; display: grid; gap: 12px; margin: 24px 0 32px; }
.demo .checks li { display: grid; grid-template-columns: 26px 1fr; gap: 12px; color: var(--ink); }
.demo .checks li::before { content: ""; width: 18px; height: 18px; margin-top: 0.3em; background: var(--orange); clip-path: polygon(0 0, 100% 0, 100% 60%, 60% 100%, 0 100%); }

/* Ablauf */
.demo .steps { list-style: none; counter-reset: s; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(14px, 1.8vw, 22px); margin-top: clamp(32px, 4vw, 52px); }
.demo .steps li { counter-increment: s; background: #fff; border: 1px solid var(--line); border-left: 5px solid var(--orange); padding: 24px 22px; }
.demo .steps li::before { content: "0" counter(s); display: block; font-family: var(--head); font-weight: 700; font-size: 2.25rem; line-height: 1; color: var(--navy); margin-bottom: 12px; }
.demo .steps h3 { margin-bottom: 8px; }
.demo .steps p { color: var(--soft); font-size: 1rem; }

/* Kontakt */
.demo .contact { background: var(--navy); color: #fff; padding-block: clamp(52px, 8vw, 96px); position: relative; }
.demo .contact::before { content: ""; position: absolute; left: 0; top: 0; width: min(38%, 420px); height: 6px; background: var(--orange); }
.demo .contact .in { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.demo .contact h2 { color: #fff; }
.demo .contact p { color: #eef2f7; }
.demo .contact .sub { color: #eef2f7; }
.demo .contact .btn { margin-top: 28px; }
.demo .contact .btn:hover { background: #fff; border-color: #fff; color: var(--navy); }
.demo .data { border: 1px solid rgba(255, 255, 255, 0.3); padding: 24px 26px; background: rgba(255, 255, 255, 0.05); }
.demo .data p + p { margin-top: 14px; }
.demo .data strong { color: #fff; }
.demo .data .hint { font-size: 1rem; color: #eef2f7; }

.demo .foot { background: var(--navy-deep); color: #e3e8ee; font-size: 1rem; }
.demo .foot .in { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 24px; padding-block: 20px; }

@media (max-width: 1000px) {
  .demo .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .demo .head .btn { display: none; }
}
@media (max-width: 860px) {
  .demo .hero-grid, .demo .split, .demo .contact .in { grid-template-columns: 1fr; }
  .demo .lead { max-width: none; }
  .demo .visual-img { clip-path: polygon(8% 0, 100% 0, 100% 100%, 0 100%); }
  .demo .visual::before { display: none; }
  .demo .steps { grid-template-columns: 1fr; }
  .demo .strip ul { grid-template-columns: 1fr; }
  .demo .strip li { border-left: 0; border-top: 1px solid rgba(255, 255, 255, 0.2); padding-inline: 0; padding-block: 16px; }
  .demo .strip li:first-child { border-top: 0; }
}
@media (max-width: 520px) {
  .demo .cards { grid-template-columns: 1fr; }
  .demo .btns .btn { width: 100%; }
  .demo .head nav { gap: 2px 20px; }
}

/* Bild und Karten: ruhige Bewegung beim Überfahren */
.demo .visual-img img { transition: transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1); }
@media (hover: hover) { .demo .visual:hover .visual-img img { transform: scale(1.04); } }
.demo .cards article { box-shadow: 0 20px 40px -32px rgba(15, 39, 64, 0.5); }