/* Technik-Partner – Design-Tokens und Layout */

:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #eef1f5;
  --text: #121826;
  --text-muted: #4b5565;
  --border: #dde2ea;
  --accent: #0e7c86;
  --accent-strong: #0a5f67;
  --accent-soft: #dff3f4;
  --highlight: #f2a93b;
  --hero-bg: #0f1724;
  --hero-text: #f3f6fa;
  --hero-muted: #a9b4c4;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 8px 24px rgba(16, 24, 40, .06);
  --radius: 14px;
  --radius-sm: 8px;
  --max: 1160px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c121c;
    --surface: #131b28;
    --surface-2: #1a2434;
    --text: #e8edf4;
    --text-muted: #a3aec0;
    --border: #253146;
    --accent: #3cc4cf;
    --accent-strong: #6fd8e0;
    --accent-soft: #12333a;
    --hero-bg: #070b12;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0c121c;
  --surface: #131b28;
  --surface-2: #1a2434;
  --text: #e8edf4;
  --text-muted: #a3aec0;
  --border: #253146;
  --accent: #3cc4cf;
  --accent-strong: #6fd8e0;
  --accent-soft: #12333a;
  --hero-bg: #070b12;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 76px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--accent); }
a:hover { color: var(--accent-strong); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); letter-spacing: -.025em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.25rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .container { padding: 0 28px; } }

.skip-link {
  position: absolute; left: -9999px; top: 8px; z-index: 100;
  background: var(--surface); color: var(--text); padding: 8px 14px; border-radius: var(--radius-sm);
}
.skip-link:focus { left: 8px; }

:focus-visible { outline: 3px solid var(--highlight); outline-offset: 2px; border-radius: 4px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--hero-bg) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--hero-text); text-decoration: none; font-weight: 700; }
.brand:hover { color: var(--hero-text); }
.brand-mark { width: 36px; height: 36px; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name { font-size: 1.14rem; font-weight: 800; letter-spacing: -.035em; }
.brand-name b { font-weight: 800; color: #6fd8e0; }
.brand-text small { font-weight: 600; font-size: .66rem; color: var(--hero-muted); letter-spacing: .14em; text-transform: uppercase; margin-top: 2px; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  color: var(--hero-muted); text-decoration: none; font-size: .95rem; font-weight: 500; white-space: nowrap;
  padding: 8px 12px; border-radius: var(--radius-sm);
}
.nav a:hover, .nav a[aria-current="true"] { color: var(--hero-text); background: rgba(255, 255, 255, .06); }
.nav .nav-cta { background: var(--accent); color: #fff; margin-left: 6px; }
.nav .nav-cta:hover { background: var(--accent-strong); color: #fff; }

.icon-btn {
  display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: var(--radius-sm);
  background: transparent; border: 1px solid rgba(255, 255, 255, .12); color: var(--hero-text); cursor: pointer;
}
.icon-btn:hover { background: rgba(255, 255, 255, .08); }
.icon-btn svg { width: 20px; height: 20px; }
.header-actions { display: flex; align-items: center; gap: 8px; }
.menu-toggle { display: none; }

@media (max-width: 980px) {
  .menu-toggle { display: inline-grid; }
  .nav {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--hero-bg); padding: 10px 16px 18px; border-bottom: 1px solid rgba(255, 255, 255, .08);
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px; }
  .nav .nav-cta { margin: 6px 0 0; text-align: center; }
}

/* Hero */
.hero {
  position: relative; overflow: hidden;
  background: var(--hero-bg); color: var(--hero-text);
  padding: 72px 0 88px;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(600px 300px at 85% 10%, rgba(60, 196, 207, .18), transparent 70%),
    radial-gradient(500px 260px at 10% 100%, rgba(242, 169, 59, .10), transparent 70%);
}
.hero-grid { position: relative; display: grid; gap: 48px; align-items: center; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 1.15fr .85fr; } .hero { padding: 104px 0 112px; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .82rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px;
}
.hero .eyebrow { color: #6fd8e0; }
.eyebrow::before { content: ""; width: 22px; height: 2px; background: currentColor; }
.hero h1 span { color: #6fd8e0; }
.hero-lead { font-size: 1.15rem; color: var(--hero-muted); max-width: 40ch; margin-bottom: 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 32px 0 0; padding: 0; list-style: none; color: var(--hero-muted); font-size: .92rem; }
.hero-facts li { display: flex; align-items: center; gap: 8px; }
.hero-facts svg { width: 18px; height: 18px; color: #6fd8e0; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: 10px; font-weight: 600; font-size: 1rem;
  text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: background .15s, border-color .15s;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-strong); color: #fff; }
.btn-ghost { color: var(--hero-text); border-color: rgba(255, 255, 255, .22); }
.btn-ghost:hover { color: var(--hero-text); background: rgba(255, 255, 255, .07); }
.btn-outline { color: var(--text); border-color: var(--border); background: var(--surface); }
.btn-outline:hover { color: var(--text); border-color: var(--accent); }

/* Code-Fenster im Hero */
.code-card {
  background: #0b111b; border: 1px solid rgba(255, 255, 255, .08); border-radius: var(--radius);
  box-shadow: 0 30px 60px rgba(0, 0, 0, .35); font-family: var(--mono); font-size: .86rem; overflow: hidden;
}
.code-card-bar { display: flex; gap: 6px; padding: 12px 14px; border-bottom: 1px solid rgba(255, 255, 255, .06); }
.code-card-bar span { width: 10px; height: 10px; border-radius: 50%; background: #2a3546; }
.code-card-bar span:nth-child(1) { background: #f26d6d; }
.code-card-bar span:nth-child(2) { background: #f2c14e; }
.code-card-bar span:nth-child(3) { background: #4ed18a; }
.code-card pre { margin: 0; padding: 18px 20px 22px; color: #c9d4e3; white-space: pre-wrap; word-break: break-word; line-height: 1.7; }
.c-k { color: #6fd8e0; } .c-s { color: #f2c14e; } .c-c { color: #66758c; } .c-f { color: #a7b7ff; }

/* Sections */
.section { padding: 80px 0; }
.section-alt { background: var(--surface); border-block: 1px solid var(--border); }
.section-head { max-width: 680px; margin-bottom: 44px; }
.section-head p { color: var(--text-muted); font-size: 1.08rem; }

.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow);
}
.section-alt .card { background: var(--bg); box-shadow: none; }
.card p { color: var(--text-muted); margin-bottom: 0; }
.card-icon {
  display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px;
  background: var(--accent-soft); color: var(--accent); margin-bottom: 18px;
}
.card-icon svg { width: 24px; height: 24px; }
.card ul { margin: 14px 0 0; padding-left: 18px; color: var(--text-muted); font-size: .95rem; }
.card ul li { margin-bottom: 4px; }

/* Projekte */
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.chip {
  font: inherit; font-size: .9rem; font-weight: 500; padding: 7px 14px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text-muted); cursor: pointer;
}
.chip:hover { color: var(--text); border-color: var(--accent); }
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }

.project {
  display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: transform .15s, border-color .15s;
}
.project:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 50%, var(--border)); }
@media (prefers-reduced-motion: reduce) { .project, .project:hover { transform: none; } }
.project[hidden] { display: none; }
.project-visual {
  position: relative; height: 150px; display: grid; place-items: center; color: #fff;
  background: linear-gradient(135deg, var(--p1, #0e7c86), var(--p2, #123049));
}
.project-visual svg { width: 56px; height: 56px; opacity: .95; }
.project-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 1; }
.project-visual::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, .14) 1px, transparent 1px);
  background-size: 16px 16px; mask-image: linear-gradient(to bottom, #000, transparent);
}
.project-body { display: flex; flex-direction: column; flex: 1; padding: 22px 24px 24px; }
.project-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.tag { font-size: .76rem; font-weight: 600; padding: 3px 9px; border-radius: 999px; background: var(--surface-2); color: var(--text-muted); }
.status { font-size: .76rem; font-weight: 600; padding: 3px 9px; border-radius: 999px; }
.status-live { background: #dcf5e7; color: #136c3b; }
.status-dev { background: #fff1d6; color: #8a5a0b; }
.status-plan { background: var(--surface-2); color: var(--text-muted); }
:root[data-theme="dark"] .status-live { background: #12352a; color: #6fe0a5; }
:root[data-theme="dark"] .status-dev { background: #3a2c12; color: #f2c14e; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .status-live { background: #12352a; color: #6fe0a5; }
  :root:not([data-theme="light"]) .status-dev { background: #3a2c12; color: #f2c14e; }
}
.project p { color: var(--text-muted); font-size: .96rem; }
.project-stack { font-family: var(--mono); font-size: .78rem; color: var(--text-muted); margin: 0 0 18px; }
.project-link {
  margin-top: auto; display: inline-flex; align-items: center; gap: 6px; font-weight: 600; text-decoration: none;
}
.project-link svg { width: 16px; height: 16px; transition: transform .15s; }
.project-link:hover svg { transform: translate(2px, -2px); }
.project-link.is-disabled { color: var(--text-muted); font-weight: 500; pointer-events: none; }

/* Elektrotechnik */
.elektro { display: grid; gap: 40px; align-items: start; }
@media (min-width: 960px) { .elektro { grid-template-columns: .95fr 1.05fr; gap: 56px; } }
.elektro-intro p { color: var(--text-muted); }
.elektro-region { display: flex; gap: 8px; align-items: flex-start; font-size: .94rem; }
.elektro-region svg { width: 18px; height: 18px; flex: none; margin-top: 3px; color: var(--accent); }
.elektro-badge {
  display: inline-flex; align-items: center; gap: 12px; margin: 6px 0 22px; padding: 12px 16px;
  border-radius: 12px; border: 1px solid color-mix(in srgb, var(--highlight) 45%, var(--border));
  background: color-mix(in srgb, var(--highlight) 9%, var(--surface));
}
.elektro-badge svg { width: 28px; height: 28px; color: var(--highlight); flex: none; }
.elektro-badge span { display: flex; flex-direction: column; font-size: .85rem; color: var(--text-muted); line-height: 1.35; }
.elektro-badge strong { color: var(--text); font-size: .95rem; }
.btn-outline svg { color: var(--accent); }
.elektro-liste { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); }
.elektro-item {
  display: flex; gap: 14px; align-items: flex-start; padding: 18px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
}
.elektro-item svg {
  width: 40px; height: 40px; padding: 9px; flex: none; border-radius: 10px;
  background: color-mix(in srgb, var(--highlight) 14%, transparent); color: #b7791f;
}
:root[data-theme="dark"] .elektro-item svg { color: var(--highlight); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .elektro-item svg { color: var(--highlight); } }
.elektro-item strong { display: block; margin-bottom: 2px; }
.elektro-item span { color: var(--text-muted); font-size: .93rem; }
.elektro-bruecke { grid-column: 1 / -1; border-style: dashed; border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }
.elektro-bruecke svg { background: var(--accent-soft); color: var(--accent); }
:root[data-theme="dark"] .elektro-bruecke svg { color: var(--accent); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .elektro-bruecke svg { color: var(--accent); } }

/* Vorgehen */
.steps { counter-reset: step; display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); list-style: none; margin: 0; padding: 0; }
.steps li { position: relative; padding: 24px; border-radius: var(--radius); background: var(--bg); border: 1px solid var(--border); }
.steps li::before {
  counter-increment: step; content: "0" counter(step);
  display: block; font-family: var(--mono); font-weight: 700; color: var(--accent); margin-bottom: 10px;
}
.steps p { color: var(--text-muted); margin: 0; font-size: .96rem; }

/* Über */
.about-grid { display: grid; gap: 40px; align-items: start; }
@media (min-width: 900px) { .about-grid { grid-template-columns: 1.1fr .9fr; } }
.about-text p { color: var(--text-muted); }
.values { display: grid; gap: 14px; }
.value { display: flex; gap: 14px; align-items: flex-start; padding: 18px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.value svg { width: 22px; height: 22px; flex: none; color: var(--accent); margin-top: 2px; }
.value strong { display: block; }
.value span { color: var(--text-muted); font-size: .95rem; }
.stats { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 28px; }
.stat strong { display: block; font-size: 1.9rem; line-height: 1.1; color: var(--text); }
.stat span { color: var(--text-muted); font-size: .9rem; }

/* Kontakt */
.contact-card {
  display: grid; gap: 32px; padding: 36px 28px; border-radius: 20px;
  background: var(--hero-bg); color: var(--hero-text); position: relative; overflow: hidden;
}
.contact-card::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(500px 240px at 100% 0%, rgba(60, 196, 207, .2), transparent 70%);
}
.contact-card > * { position: relative; }
@media (min-width: 900px) { .contact-card { grid-template-columns: 1.1fr .9fr; padding: 52px; align-items: center; } }
.contact-card h2 { color: var(--hero-text); }
.contact-card p { color: var(--hero-muted); }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.contact-list a, .contact-list div {
  display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 12px;
  background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .08);
  color: var(--hero-text); text-decoration: none; overflow-wrap: anywhere;
}
.contact-list a:hover { background: rgba(255, 255, 255, .1); color: var(--hero-text); }
.contact-list svg { width: 20px; height: 20px; flex: none; color: #6fd8e0; }
.contact-list small { display: block; color: var(--hero-muted); font-size: .78rem; }

/* Footer */
.site-footer { padding: 36px 0; color: var(--text-muted); font-size: .92rem; border-top: 1px solid var(--border); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 14px 28px; justify-content: space-between; align-items: center; }
.footer-links { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.footer-links a { color: var(--text-muted); text-decoration: none; }
.footer-links a:hover { color: var(--accent); }

/* Rechtstexte */
.legal { padding: 56px 0 80px; }
.legal .container { max-width: 820px; }
.legal h2 { font-size: 1.3rem; margin-top: 2em; }
.legal p, .legal li { color: var(--text-muted); }
.notice {
  padding: 14px 18px; border-radius: var(--radius-sm); border: 1px dashed var(--highlight);
  background: color-mix(in srgb, var(--highlight) 10%, transparent); color: var(--text); font-size: .95rem; margin-bottom: 28px;
}

/* Einblenden beim Scrollen */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }
.no-js .reveal { opacity: 1; transform: none; }