/* Soft Technical Theme — Elektrotechnik von Brandis GmbH (entschärfte Circuit-Board-Variante) */
:root {
  --paper: #D8D4C8;
  --paper-d: #CAC5B6;
  --paper-e: #BCB6A5;
  --ink: #14191F;
  --ink-s: #2A3140;
  --accent: #1F4270;
  --accent-d: #143056;
  --muted: #4F5963;
  --line: #A8A396;
  --led: #5A8F6A;

  --font-display: 'JetBrains Mono', ui-monospace, 'Cascadia Mono', monospace;
  --font-body: 'Inter Tight', Inter, system-ui, sans-serif;
  --radius: 4px;
}

body {
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: -1px -1px;
}
body::before {
  content: "";
  position: fixed; inset: 0;
  background: radial-gradient(ellipse at 50% -10%, rgba(47,91,140,0.06), transparent 60%),
              radial-gradient(ellipse at 10% 90%, rgba(90,143,106,0.04), transparent 55%);
  pointer-events: none; z-index: 0;
}
main, .masthead, .footer, .demo-banner, .legal { position: relative; z-index: 1; }

/* LED dot */
.led {
  display: inline-block; width: 0.55rem; height: 0.55rem; border-radius: 50%;
  background: var(--led); box-shadow: 0 0 8px var(--led), 0 0 2px var(--led);
  vertical-align: middle;
}
.led--amber { background: var(--accent); box-shadow: 0 0 8px var(--accent), 0 0 2px var(--accent); }
.led--dim { background: var(--muted); box-shadow: none; }

/* Masthead */
.demo-banner { background: var(--accent); color: var(--paper); font-family: var(--font-display); font-weight: 500; }
.demo-banner a { color: var(--paper); text-decoration: underline; }
.masthead {
  background: rgba(216,212,200,0.92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.masthead .brand { font-family: var(--font-display); color: var(--ink); letter-spacing: 0; display: inline-flex; align-items: center; gap: 0.6rem; }
.masthead .brand .led { margin-right: 0.2rem; }
.masthead nav a { color: var(--ink-s); font-family: var(--font-display); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.08em; }
.masthead nav a:hover, .masthead nav a.active { color: var(--accent); }

/* Hero */
.hero { padding: 5rem var(--pad-x) 6rem; position: relative; overflow: hidden; }
.hero-inner { max-width: var(--container); margin: 0 auto; display: grid; grid-template-columns: 1.2fr 1fr; gap: 4rem; align-items: center; }
.hero .eyebrow { font-family: var(--font-display); font-size: 0.78rem; color: var(--accent); letter-spacing: 0.22em; text-transform: uppercase; margin-bottom: 1.5rem; display: inline-flex; align-items: center; gap: 0.6rem; }
.hero h1 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2.4rem, 5.5vw, 4rem); line-height: 1.05; letter-spacing: -0.02em;
  margin-bottom: 1.5rem; color: var(--ink);
}
.hero h1 span { color: var(--accent); }
.hero p { color: var(--ink-s); font-size: 1.08rem; line-height: 1.7; margin-bottom: 2rem; max-width: 520px; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2rem; }
.hero-rating { font-family: var(--font-display); font-size: 0.85rem; color: var(--ink-s); display: inline-flex; align-items: center; gap: 0.5rem; }
.hero-rating .stars { color: var(--accent); letter-spacing: 0.12em; }

.btn-primary { background: var(--accent); color: var(--paper); font-weight: 600; }
.btn-primary:hover { background: var(--accent-d); transform: translateY(-1px); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: transparent; }

/* Schematic panel */
.schema {
  background: var(--paper-d);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem; position: relative;
  font-family: var(--font-display);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.schema::before { content: ""; position: absolute; top: 12px; left: 12px; right: 12px; bottom: 12px; border: 1px dashed var(--line); border-radius: 2px; pointer-events: none; }
.schema-head { display: flex; justify-content: space-between; align-items: center; font-size: 0.72rem; color: var(--ink-s); text-transform: uppercase; letter-spacing: 0.18em; margin-bottom: 1.5rem; }
.schema-head .leds { display: inline-flex; gap: 0.35rem; }
.schema-title { font-size: 1.2rem; color: var(--ink); margin-bottom: 1rem; }
.schema-list { list-style: none; padding: 0; display: grid; gap: 0.55rem; font-size: 0.88rem; color: var(--ink-s); }
.schema-list li { display: flex; align-items: center; gap: 0.6rem; padding-bottom: 0.55rem; border-bottom: 1px dashed var(--line); }
.schema-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.schema-list li::before { content: ""; display: inline-block; width: 18px; height: 1px; background: var(--accent); }
.schema-footer { margin-top: 1.5rem; font-size: 0.72rem; color: var(--muted); letter-spacing: 0.12em; text-transform: uppercase; }

/* Section */
.section { padding: 5rem var(--pad-x); border-top: 1px solid var(--line); position: relative; }
.section-inner { max-width: var(--container); margin: 0 auto; }
.section-head { margin-bottom: 3rem; max-width: 720px; }
.section-kicker { font-family: var(--font-display); font-size: 0.78rem; color: var(--accent); letter-spacing: 0.22em; text-transform: uppercase; margin-bottom: 1rem; display: inline-flex; align-items: center; gap: 0.5rem; }
.section-head h2 { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.8rem, 3.8vw, 2.6rem); line-height: 1.1; letter-spacing: -0.02em; color: var(--ink); }
.section-head h2 span { color: var(--accent); }
.section-head p { color: var(--ink-s); margin-top: 1rem; font-size: 1.02rem; line-height: 1.7; }

/* Leistungs-Grid (Circuit nodes) */
.leistungen { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.node {
  background: var(--paper-d);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  position: relative; transition: all 0.2s ease;
}
.node:hover { border-color: var(--accent); transform: translateY(-3px); }
.node::before {
  content: ""; position: absolute; top: 0; left: 1.75rem; right: 1.75rem; height: 1px; background: var(--line);
  transform: translateY(-0.5px);
}
.node-pin { position: absolute; top: -6px; width: 10px; height: 10px; border-radius: 50%; background: var(--paper); border: 1px solid var(--accent); }
.node-pin.pin-l { left: 1.4rem; }
.node-pin.pin-r { right: 1.4rem; }
.node-id { font-family: var(--font-display); font-size: 0.7rem; color: var(--muted); letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 0.8rem; display: flex; justify-content: space-between; }
.node h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; color: var(--ink); margin-bottom: 0.6rem; letter-spacing: -0.01em; }
.node p { color: var(--ink-s); font-size: 0.93rem; line-height: 1.65; }

/* Intro */
.intro { padding: 4rem var(--pad-x); border-top: 1px solid var(--line); }
.intro-inner { max-width: 860px; margin: 0 auto; text-align: center; }
.intro blockquote {
  font-family: var(--font-display); font-size: clamp(1.3rem, 2.4vw, 1.7rem); line-height: 1.45;
  color: var(--ink); letter-spacing: -0.01em;
}
.intro blockquote::before { content: ">"; color: var(--accent); margin-right: 0.6rem; }
.intro cite { display: block; margin-top: 1.5rem; font-family: var(--font-display); font-size: 0.82rem; color: var(--ink-s); font-style: normal; letter-spacing: 0.12em; text-transform: uppercase; }

/* Kontakt */
.kontakt { display: grid; grid-template-columns: 1.2fr 1fr; gap: 3rem; align-items: start; }
.kontakt iframe { width: 100%; height: 380px; border: 1px solid var(--line); border-radius: var(--radius); filter: grayscale(0.3) invert(0.92) hue-rotate(180deg) contrast(0.9); }
.info-list { display: grid; gap: 1.25rem; font-family: var(--font-display); }
.info-row { padding: 1rem 1.2rem; background: var(--paper-d); border: 1px solid var(--line); border-left: 2px solid var(--accent); border-radius: var(--radius); }
.info-row .label { font-size: 0.7rem; color: var(--muted); letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 0.4rem; }
.info-row .val { color: var(--ink); font-size: 0.98rem; line-height: 1.55; font-family: var(--font-body); }
.info-row .val a { color: var(--ink); border-bottom: 1px solid var(--accent); }
.info-row .val a:hover { color: var(--accent); }

.hours { font-family: var(--font-display); font-size: 0.92rem; }
.hours-row { display: flex; justify-content: space-between; padding: 0.55rem 0; border-bottom: 1px dashed var(--line); color: var(--ink-s); }
.hours-row:last-child { border-bottom: 0; }
.hours-row .day { color: var(--ink); }
.hours-row.closed .time { color: var(--muted); }

/* CTA */
.cta-band { padding: 4rem var(--pad-x); border-top: 1px solid var(--line); text-align: center; }
.cta-band h2 { font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2.2rem); color: var(--ink); margin-bottom: 1rem; letter-spacing: -0.02em; }
.cta-band p { color: var(--ink-s); margin-bottom: 2rem; max-width: 540px; margin-left: auto; margin-right: auto; }
.cta-band .actions { display: inline-flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }

/* Form */
.form-card {
  background: var(--paper-d); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 2rem; display: grid; gap: 1rem;
}
.form-card label { font-family: var(--font-display); font-size: 0.75rem; color: var(--ink-s); letter-spacing: 0.12em; text-transform: uppercase; display: block; margin-bottom: 0.4rem; }
.form-card input, .form-card textarea {
  width: 100%; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0.75rem 0.9rem; color: var(--ink); font-family: var(--font-body); font-size: 0.95rem;
}
.form-card input:focus, .form-card textarea:focus { outline: 1px solid var(--accent); border-color: var(--accent); }
.form-card textarea { min-height: 130px; resize: vertical; }
.form-card .field { display: block; }

/* Footer */
.footer { background: var(--paper-d); border-top: 1px solid var(--line); color: var(--ink-s); padding: 2.5rem var(--pad-x); }
.footer a { color: var(--ink-s); }
.footer a:hover { color: var(--accent); }
.footer .brand { font-family: var(--font-display); color: var(--ink); }

/* Legal */
.legal { color: var(--ink); }
.legal h1, .legal h2 { font-family: var(--font-display); color: var(--ink); }
.legal a { color: var(--accent); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  .hero { padding: 3rem var(--pad-x) 4rem; }
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .leistungen { grid-template-columns: 1fr; }
  .kontakt { grid-template-columns: 1fr; gap: 2rem; }
  .kontakt iframe { height: 280px; }
  .section { padding: 3.5rem var(--pad-x); }
}