/* ===== MOA Schweißtechnik — Stylesheet ===== */

:root {
  --spark: #ff7a18;
  --spark-2: #ffb02e;
  --arc: #4fc3f7;

  --bg: #0c0e12;
  --bg-2: #11141a;
  --surface: #171b22;
  --surface-2: #1d222b;
  --line: #2a2f3a;
  --text: #eef1f6;
  --muted: #9aa3b2;
  --on-spark: #1a1205;

  --radius: 14px;
  --radius-lg: 20px;
  --maxw: 1180px;
  --shadow: 0 18px 50px -20px rgba(0,0,0,.65);
  --font-head: 'Archivo', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

[data-theme="light"] {
  --bg: #f4f5f7;
  --bg-2: #ffffff;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --line: #e2e6ec;
  --text: #14181f;
  --muted: #5a6573;
  --shadow: 0 18px 50px -24px rgba(20,30,50,.28);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(18px, 4vw, 40px); }

h1, h2, h3 { font-family: var(--font-head); line-height: 1.08; letter-spacing: -.02em; font-weight: 800; }

.grad {
  background: linear-gradient(100deg, var(--spark-2), var(--spark));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--font-head); font-weight: 700; font-size: .98rem;
  padding: .8em 1.5em; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(100deg, var(--spark-2), var(--spark));
  color: var(--on-spark);
  box-shadow: 0 10px 30px -10px rgba(255,122,24,.55);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 36px -12px rgba(255,122,24,.7); }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--spark); color: var(--spark); transform: translateY(-2px); }
.btn-block { width: 100%; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .55rem; font-family: var(--font-head); font-weight: 900; letter-spacing: .04em; }
.brand-mark { color: var(--text); display: inline-flex; }
.brand-name { font-size: 1.4rem; }
.brand-logo { height: 46px; width: auto; display: block; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-links > a { font-weight: 500; color: var(--muted); transition: color .15s; font-size: .96rem; }
.nav-links > a:hover { color: var(--text); }
.nav-cta { color: var(--on-spark) !important; }

.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line); color: var(--text); cursor: pointer;
  transition: border-color .2s, color .2s;
}
.theme-toggle:hover { border-color: var(--spark); color: var(--spark); }
.i-moon { display: none; }
[data-theme="light"] .i-sun { display: none; }
[data-theme="light"] .i-moon { display: block; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 42px; height: 42px; background: transparent; border: 0; cursor: pointer; align-items: center; justify-content: center; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .25s, opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero (3D + Funken) ===== */
#sparks { position: fixed; inset: 0; width: 100vw; height: 100vh; pointer-events: none; z-index: 9999; }
.hero { position: relative; min-height: 100svh; overflow: hidden; perspective: 1200px; }
.hero-stage {
  position: absolute; inset: 0; display: flex; align-items: center;
  transform-style: preserve-3d;
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform .35s ease-out; will-change: transform;
}
.hero-grid {
  position: absolute; inset: -12%;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px; opacity: .14;
  -webkit-mask-image: radial-gradient(75% 75% at 60% 35%, #000, transparent 78%);
          mask-image: radial-gradient(75% 75% at 60% 35%, #000, transparent 78%);
}
.hero-glow {
  position: absolute; inset: 0;
  background:
    radial-gradient(50% 60% at 72% 18%, rgba(255,122,24,.28), transparent 60%),
    radial-gradient(45% 55% at 10% 90%, rgba(79,195,247,.10), transparent 60%);
}
.hero-logo {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: flex-end;
  padding-right: clamp(0px, 4vw, 80px); pointer-events: none;
}
.hero-logo img {
  width: min(640px, 72vw); height: auto;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 24%);
          mask-image: linear-gradient(90deg, transparent 0%, #000 24%);
}
.logo-dark { mix-blend-mode: screen; opacity: .85; filter: drop-shadow(0 0 40px rgba(255,122,24,.25)); }
.logo-light { mix-blend-mode: multiply; opacity: .9; display: none; }
[data-theme="light"] .logo-dark { display: none; }
[data-theme="light"] .logo-light { display: block; }
.hero-content { position: relative; z-index: 3; width: 100%; }
.hero-content .eyebrow, .hero h1, .hero-content .lead, .hero-actions, .hero-hint { max-width: 640px; }
.hero h1 { max-width: 13ch; }
.eyebrow { display: inline-flex; align-items: center; gap: .55rem; font-family: var(--font-head); font-weight: 600; text-transform: uppercase; letter-spacing: .16em; font-size: .76rem; color: var(--muted); }
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--spark); box-shadow: 0 0 0 4px rgba(255,122,24,.18); }
.hero h1 { font-size: clamp(2.6rem, 8vw, 5.4rem); font-weight: 900; margin: 1rem 0 1.3rem; }
.lead { font-size: clamp(1.05rem, 2.2vw, 1.3rem); color: var(--muted); max-width: 580px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin: 2rem 0 2rem; }
.hero-hint { display: inline-flex; align-items: center; gap: .5rem; color: var(--muted); font-size: .85rem; }
.hint-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--spark); animation: pulse 1.6s infinite; }
@keyframes pulse { 0%, 100% { opacity: .3; transform: scale(.8); } 50% { opacity: 1; transform: scale(1.3); } }
@media (pointer: coarse) { .hero-hint { display: none; } }

/* ===== Sections ===== */
.section { padding: clamp(64px, 9vw, 120px) 0; }
.section-alt { background: var(--bg-2); border-block: 1px solid var(--line); }
.section-head { max-width: 640px; margin-bottom: clamp(2.4rem, 5vw, 3.6rem); }
.section-head h2 { font-size: clamp(2rem, 4.5vw, 3rem); margin: .8rem 0 .7rem; }
.section-sub { color: var(--muted); font-size: 1.05rem; }

/* ===== Cards ===== */
.grid { display: grid; gap: 1.1rem; }
.cards { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.7rem 1.6rem; position: relative; overflow: hidden;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.card::before { content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0; background: linear-gradient(90deg, var(--spark-2), var(--spark)); transition: width .3s ease; }
.card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--spark) 40%, var(--line)); box-shadow: var(--shadow); }
.card:hover::before { width: 100%; }
.card-tag { display: inline-block; font-family: var(--font-head); font-weight: 700; font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--spark); padding: .3em .7em; border: 1px solid color-mix(in srgb, var(--spark) 40%, transparent); border-radius: 999px; margin-bottom: 1rem; }
.card h3 { font-size: 1.3rem; margin-bottom: .55rem; }
.card p { color: var(--muted); font-size: .96rem; }

/* ===== Projekte ===== */
.project-grid { grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
.project {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.7rem 1.6rem; position: relative; overflow: hidden;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.project:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--spark) 40%, var(--line)); box-shadow: var(--shadow); }
.project-tag {
  display: inline-block; font-family: var(--font-head); font-weight: 700; font-size: .7rem;
  letter-spacing: .14em; text-transform: uppercase; color: var(--on-spark);
  background: linear-gradient(100deg, var(--spark-2), var(--spark));
  padding: .35em .75em; border-radius: 999px; margin-bottom: 1rem;
}
.project h3 { font-size: 1.2rem; margin-bottom: .55rem; }
.project p { color: var(--muted); font-size: .96rem; }
.section-footnote { margin-top: 2.4rem; color: var(--muted); font-size: 1rem; max-width: 760px; }
.section-footnote strong { color: var(--text); }

/* ===== Einsatzgebiet ===== */
.region-list {
  list-style: none; display: flex; flex-wrap: wrap; gap: .6rem;
  margin: 1rem 0 1.4rem;
}
.region-list li {
  font-family: var(--font-head); font-weight: 600; font-size: .92rem;
  padding: .5em 1em; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line); color: var(--text);
}
.region-note { color: var(--muted); max-width: 760px; font-size: .98rem; }

/* ===== Gallery ===== */
.gallery { columns: 4 220px; column-gap: 14px; }
.gallery figure { break-inside: avoid; margin: 0 0 14px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); cursor: zoom-in; position: relative; background: var(--surface); }
.gallery figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 1.1em .9em .55em;
  font-family: var(--font-head); font-size: .78rem; font-weight: 600;
  letter-spacing: .04em; color: #fff;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,.78));
  pointer-events: none;
  opacity: 0; transform: translateY(8px); transition: opacity .25s, transform .25s;
}
.gallery figure:hover figcaption { opacity: 1; transform: none; }
@media (pointer: coarse) { .gallery figcaption { opacity: 1; transform: none; } }
.gallery img { width: 100%; height: auto; transition: transform .45s ease, filter .3s ease; filter: saturate(.92); }
.gallery figure::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(255,122,24,.16)); opacity: 0; transition: opacity .3s; }
.gallery figure:hover img { transform: scale(1.06); filter: saturate(1.05); }
.gallery figure:hover::after { opacity: 1; }

/* ===== Split / Qualität ===== */
.split { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.check-list { list-style: none; margin-top: 1.8rem; display: grid; gap: .9rem; }
.check-list li { position: relative; padding-left: 2rem; color: var(--text); }
.check-list li::before { content: ""; position: absolute; left: 0; top: .35em; width: 18px; height: 18px; border-radius: 50%; background: linear-gradient(100deg, var(--spark-2), var(--spark)); box-shadow: 0 0 0 4px rgba(255,122,24,.14); }
.check-list li::after { content: ""; position: absolute; left: 6px; top: .62em; width: 6px; height: 3px; border-left: 2px solid var(--on-spark); border-bottom: 2px solid var(--on-spark); transform: rotate(-45deg); }
.quote-card { background: linear-gradient(160deg, var(--surface), var(--surface-2)); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 2.2rem; position: relative; box-shadow: var(--shadow); }
.quote-card::before { content: "“"; position: absolute; top: -.1em; left: .35rem; font-family: var(--font-head); font-size: 6rem; color: color-mix(in srgb, var(--spark) 35%, transparent); line-height: 1; }
.quote { font-family: var(--font-head); font-size: 1.4rem; font-weight: 600; line-height: 1.35; position: relative; }
.quote-by { margin-top: 1.1rem; color: var(--muted); font-weight: 500; }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(1.6rem, 4vw, 3rem); }
.contact-form { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(1.6rem, 3vw, 2.4rem); }
.field { margin-bottom: 1.2rem; }
.field label { display: block; font-family: var(--font-head); font-weight: 600; font-size: .85rem; margin-bottom: .5rem; letter-spacing: .02em; }
.field input, .field textarea { width: 100%; background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; padding: .85em 1em; color: var(--text); font: inherit; font-size: .98rem; transition: border-color .2s, box-shadow .2s; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--spark); box-shadow: 0 0 0 3px rgba(255,122,24,.16); }
.field textarea { resize: vertical; }
.form-note { margin-top: 1rem; font-size: .92rem; min-height: 1.2em; }
.form-note.ok { color: var(--spark-2); }
.form-note.err { color: #ff5d5d; }

.contact-info { padding-top: .5rem; }
.contact-info h3 { font-size: 1.3rem; margin-bottom: 1.2rem; }
.info-list { list-style: none; display: grid; gap: 1.2rem; }
.info-list li { display: grid; gap: .2rem; }
.info-label { font-family: var(--font-head); font-weight: 600; font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.info-list a { color: var(--spark); font-weight: 500; word-break: break-word; }
.info-list a:hover { text-decoration: underline; }
.info-hint { margin-top: 1.6rem; font-size: .82rem; color: var(--muted); padding: .8em 1em; border-left: 3px solid var(--spark); background: var(--surface); border-radius: 0 8px 8px 0; }

/* ===== Footer ===== */
/* ===== Partner Strip ===== */
.partner-strip {
  border-top: 1px solid var(--line);
  padding: 3rem 0;
}
.partner-label {
  text-align: center;
  font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 1.4rem;
}
.partner-grid {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem;
}
.partner-card {
  display: flex; align-items: center; gap: .85rem;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: .85rem 1.2rem;
  text-decoration: none; color: var(--text);
  transition: border-color .2s, box-shadow .2s, transform .2s;
  min-width: 220px;
}
.partner-card:hover {
  border-color: rgba(255,122,24,.35);
  box-shadow: 0 8px 24px -12px rgba(255,122,24,.3);
  transform: translateY(-2px);
  color: var(--text);
}
.partner-icon {
  width: 38px; height: 38px; flex-shrink: 0;
  background: var(--surface-2); border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-head); font-weight: 900; font-size: .72rem;
  color: var(--spark); letter-spacing: -.02em;
  border: 1px solid var(--line);
}
.partner-info { flex: 1; min-width: 0; }
.partner-name { font-family: var(--font-head); font-weight: 700; font-size: .88rem; line-height: 1.2; }
.partner-domain { font-size: .75rem; color: var(--muted); margin-top: .15rem; }
.partner-ext {
  color: var(--muted); flex-shrink: 0;
  transition: color .2s;
}
.partner-card:hover .partner-ext { color: var(--spark); }

.site-footer { border-top: 1px solid var(--line); background: var(--bg-2); padding: 3rem 0; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: .6rem; text-align: center; }
.footer-tag { color: var(--muted); font-size: .9rem; }
.footer-copy { color: var(--muted); font-size: .82rem; }
.footer-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.1rem; margin: .4rem 0; }
.footer-nav a { color: var(--muted); font-size: .9rem; transition: color .2s; }
.footer-nav a:hover { color: var(--spark); }

/* ===== Legal pages ===== */
.legal-page main.legal { padding-top: clamp(2.4rem, 6vw, 4rem); }
.legal-inner { max-width: 780px; margin: 0 auto; }
.legal-inner h1 { font-size: clamp(2rem, 5vw, 2.8rem); margin: .6rem 0 1rem; }
.legal-block { margin-top: 2rem; padding-top: 1.6rem; border-top: 1px solid var(--line); }
.legal-block:first-of-type { border-top: 0; padding-top: 0; }
.legal-block h2 { font-size: 1.2rem; margin-bottom: .8rem; color: var(--spark); letter-spacing: .01em; }
.legal-block p, .legal-block li { color: var(--text); font-size: 1rem; }
.legal-block ul { padding-left: 1.2rem; margin: .6rem 0; display: grid; gap: .5rem; }
.legal-block a { color: var(--spark); }
.legal-block a:hover { text-decoration: underline; }
.legal-back { margin-top: 2.8rem; }
.legal-back a { color: var(--muted); font-weight: 500; }
.legal-back a:hover { color: var(--spark); }

/* ===== Quote refinements ===== */
.quote-rule { border: 0; border-top: 1px solid var(--line); margin: 1.4rem 0 1.1rem; }
.quote-foot { color: var(--muted); font-size: .92rem; line-height: 1.55; }

/* ===== Lightbox ===== */
.lightbox { position: fixed; inset: 0; z-index: 100; background: rgba(5,6,9,.94); display: flex; align-items: center; justify-content: center; padding: 4vh 2vw; }
.lightbox[hidden] { display: none; }
.lb-img { max-width: min(92vw, 1100px); max-height: 88vh; width: auto; border-radius: 10px; box-shadow: 0 30px 90px -20px rgba(0,0,0,.9); }
.lb-close, .lb-nav { position: absolute; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.18); color: #fff; cursor: pointer; border-radius: 999px; backdrop-filter: blur(6px); transition: background .2s, transform .15s; }
.lb-close { top: 3vh; right: 3vw; width: 48px; height: 48px; font-size: 1.8rem; line-height: 1; }
.lb-nav { top: 50%; transform: translateY(-50%); width: 56px; height: 56px; font-size: 2rem; line-height: 1; }
.lb-prev { left: 3vw; }
.lb-next { right: 3vw; }
.lb-close:hover, .lb-nav:hover { background: var(--spark); transform: translateY(-50%) scale(1.05); }
.lb-close:hover { transform: scale(1.05); }
.lb-counter { position: absolute; bottom: 3vh; left: 50%; transform: translateX(-50%); color: #fff; font-family: var(--font-head); font-weight: 600; letter-spacing: .1em; background: rgba(255,255,255,.08); padding: .4em 1em; border-radius: 999px; font-size: .85rem; }

/* ===== Floating contact buttons (FAB stack) ===== */
.fab-stack {
  position: fixed; right: 22px; bottom: 22px; z-index: 80;
  display: flex; flex-direction: column; gap: 12px;
}
.fab {
  width: 56px; height: 56px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  transition: transform .15s, box-shadow .2s;
}
.fab:hover { transform: scale(1.08); }
.fab-whatsapp  { background: #25d366; box-shadow: 0 12px 28px -8px rgba(37,211,102,.55); }
.fab-whatsapp:hover  { box-shadow: 0 16px 32px -8px rgba(37,211,102,.7); }
.fab-telegram  { background: #229ED9; box-shadow: 0 12px 28px -8px rgba(34,158,217,.55); }
.fab-telegram:hover  { box-shadow: 0 16px 32px -8px rgba(34,158,217,.7); }
.fab-mail      { background: linear-gradient(135deg, var(--spark-2), var(--spark)); color: var(--on-spark); box-shadow: 0 12px 28px -8px rgba(255,122,24,.55); }
.fab-mail:hover      { box-shadow: 0 16px 32px -8px rgba(255,122,24,.7); }
@media (max-width: 600px) {
  .fab-stack { right: 18px; bottom: 18px; gap: 10px; }
  .fab { width: 52px; height: 52px; }
}

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 920px) {
  .split, .contact-grid { grid-template-columns: 1fr; }
  .gallery { columns: 3 180px; }
}
@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed; inset: 72px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg-2); border-bottom: 1px solid var(--line); padding: .5rem 0 1.2rem;
    transform: translateY(-130%); transition: transform .3s ease; box-shadow: var(--shadow);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links > a { padding: .9rem clamp(18px, 6vw, 40px); border-bottom: 1px solid var(--line); }
  .theme-toggle { margin: 1rem clamp(18px,6vw,40px) 0; }
  .nav-cta { margin: 1rem clamp(18px,6vw,40px); text-align: center; }
  .gallery { columns: 2 140px; }

  .hero-logo { align-items: flex-start; justify-content: center; padding: clamp(80px, 16vh, 130px) 0 0; opacity: .28; }
  .hero-logo img { width: 84vw; -webkit-mask-image: none; mask-image: none; }
  .hero h1 { font-size: clamp(2.4rem, 11vw, 3.4rem); }
  .hero-content::before {
    content: ""; position: absolute; inset: -8% -6%;
    background: radial-gradient(120% 80% at 30% 60%, var(--bg) 35%, transparent 75%);
    z-index: -1;
  }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
  .reveal { transition: none; opacity: 1; transform: none; }
}