/* Bauplan-Präzision · Dachdeckermeister · v2
 * Bausteine genutzt: Hero ohne Foto (CSS-Giebel) · Faktenleiste · Leistungs-Raster · Dachlatte · Über uns mit Foto · Typenschild · Kontakt · Footer
 * Entfallen (kein Inhalt): Hero-Foto · Referenzen · Kundenstimmen · Notdienst
 */

/* ===== Tokens ===== */
:root {
  --bg: #FFFFFF;
  --fg: #0A0A14;
  --fg-muted: #4A5568;
  --primary: #0000FF;
  --primary-strong: #0000C2;
  --tint: #D8E4FE;
  --muted: #F2F2F2;
  --slate: #1C1F26;
  --on-slate: #E6EAF2;
  --white: #FFFFFF;
  --grid-line: rgba(10, 10, 20, 0.04);
  --diag-line: rgba(10, 10, 20, 0.03);
  --ghost-on-slate: rgba(230, 234, 242, 0.10);

  --font-display: "Helvetica Neue", Helvetica, Arial, "Nimbus Sans", "Segoe UI", system-ui, sans-serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px; --s5: 24px;
  --s6: 32px; --s7: 48px; --s8: 64px; --s9: 96px; --s10: 128px;

  --container: 1280px;
  --gutter: 24px;
  --section: 64px;
  --radius: 0;
  --line: 2px solid var(--fg);
  --line-strong: 4px solid var(--fg);
  --ease: cubic-bezier(0.2, 0, 0, 1);
  --tap: 48px;
  --bar: 56px;
}
@media (min-width: 48rem) { :root { --section: 96px; } }
@media (min-width: 64rem) { :root { --section: 128px; --gutter: 48px; } }

/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; box-shadow: none; }
html, body { overflow-x: clip; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 400 1.0625rem/1.6 var(--font-body);
  padding-bottom: var(--bar);
}
@media (min-width: 64rem) { body { padding-bottom: 0; } }

h1, h2, h3 {
  font-family: var(--font-display); font-style: normal; margin: 0 0 var(--s5);
  hyphens: auto; overflow-wrap: break-word; min-width: 0;
}
h1 { font-size: clamp(2.5rem, 7vw + 1rem, 6.5rem); font-weight: 800; letter-spacing: -0.03em; line-height: 0.95; }
h2 { font-size: clamp(2rem, 3.5vw + 1rem, 3.75rem); font-weight: 800; letter-spacing: -0.02em; line-height: 1; }
h3 { font-size: 1.375rem; font-weight: 700; line-height: 1.2; }
p { margin: 0 0 var(--s4); max-width: 65ch; }
a { color: var(--primary); text-underline-offset: 0.2em; }
img { display: block; max-width: 100%; height: auto; }
address { font-style: normal; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 3px; }
.on-slate :focus-visible, .on-blue :focus-visible { outline-color: var(--tint); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.skip-link { position: absolute; left: var(--s4); top: -100px; background: var(--fg); color: var(--white); padding: var(--s3) var(--s4); z-index: 200; }
.skip-link:focus { top: var(--s4); }

.label {
  font: 700 0.8125rem/1.3 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--primary); margin: 0 0 var(--s4);
}
.on-slate .label, .on-blue .label { color: var(--tint); }
.mono { font-family: var(--font-mono); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; transform: none !important; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s2);
  min-height: var(--tap); padding: var(--s3) var(--s5);
  font: 700 1rem/1 var(--font-body); letter-spacing: 0.04em; text-transform: uppercase;
  text-decoration: none; white-space: nowrap; cursor: pointer;
  border: 2px solid var(--primary); border-bottom-width: 4px; border-radius: var(--radius);
  background: var(--primary); color: var(--white);
  transition: background-color 150ms var(--ease), transform 150ms var(--ease), border-color 150ms var(--ease);
}
.btn:hover { background: var(--primary-strong); border-color: var(--primary-strong); color: var(--white); }
.btn:active { transform: translateY(2px); border-bottom-width: 2px; }
.btn--outline { background: transparent; color: var(--fg); border: 4px solid var(--fg); font-family: var(--font-mono); text-transform: none; letter-spacing: 0; }
.btn--outline:hover { background: var(--fg); color: var(--white); border-color: var(--fg); }
.btn--slate { background: var(--slate); border-color: var(--slate); color: var(--white); }
.btn--slate:hover { background: var(--fg); border-color: var(--fg); }
.btn--block { width: 100%; }

/* ===== Header ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: var(--bg); border-bottom: var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--s4); min-height: 72px; }
.brand { display: flex; align-items: center; gap: var(--s3); text-decoration: none; color: var(--fg); min-width: 0; }
.brand img { width: 48px; height: 36px; aspect-ratio: 4 / 3; object-fit: contain; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; min-width: 0; }
.brand-kicker { font: 700 0.6875rem/1.2 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-muted); }
.brand-name { font: 800 1.0625rem/1.2 var(--font-display); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.nav-toggle {
  width: var(--tap); height: var(--tap); flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg); border: var(--line); border-radius: var(--radius); color: var(--fg); cursor: pointer;
}
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after { display: block; width: 20px; height: 2px; background: currentColor; position: relative; transition: transform 200ms var(--ease); }
.nav-toggle-bars::before, .nav-toggle-bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle-bars::before { top: -7px; } .nav-toggle-bars::after { top: 7px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { transform: translateY(-7px) rotate(-45deg); }

.site-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; background: var(--bg); border-bottom: var(--line-strong); }
.site-nav.is-open { display: block; }
.site-nav ul { list-style: none; margin: 0; padding: 0; }
.site-nav li + li { border-top: var(--line); }
.site-nav a {
  display: flex; align-items: center; min-height: 56px; padding: 0 var(--gutter);
  font: 700 0.9375rem/1 var(--font-body); letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--fg); text-decoration: none; white-space: nowrap;
}
.site-nav a[aria-current="page"] { color: var(--primary); }
.header-actions { display: none; }

@media (min-width: 64rem) {
  .nav-toggle { display: none; }
  .site-nav { display: block; position: static; border: 0; background: transparent; }
  .site-nav ul { display: flex; gap: var(--s5); }
  .site-nav li + li { border: 0; }
  .site-nav a { padding: 0; min-height: var(--tap); font-size: 0.8125rem; position: relative; overflow: hidden; }
  .site-nav a span { display: block; transition: transform 200ms var(--ease); }
  .site-nav a span::after { content: attr(data-text); position: absolute; left: 0; top: 100%; color: var(--primary); }
  .site-nav a:hover span { transform: translateY(-100%); }
  .site-nav a[aria-current="page"] { box-shadow: none; border-bottom: 4px solid var(--primary); }
  .header-actions { display: flex; align-items: center; gap: var(--s4); }
  .header-phone { font: 700 0.9375rem/1 var(--font-mono); color: var(--fg); text-decoration: none; white-space: nowrap; display: inline-flex; align-items: center; min-height: var(--tap); }
  .header-phone:hover { color: var(--primary); }
}

/* Mobile action bar */
.action-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 90; display: grid; grid-template-columns: 1fr 1fr; border-top: var(--line); }
.action-bar a {
  display: flex; align-items: center; justify-content: center; height: var(--bar);
  font: 700 0.9375rem/1 var(--font-body); letter-spacing: 0.04em; text-transform: uppercase; text-decoration: none; color: var(--white);
}
.action-bar .ab-call { background: var(--slate); }
.action-bar .ab-req { background: var(--primary); }
.action-bar a:active { transform: translateY(2px); }
@media (min-width: 64rem) { .action-bar { display: none; } }

/* ===== Patterns ===== */
.pattern-grid {
  background-color: var(--muted);
  background-image: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 24px 24px;
}
.pattern-diag { background-image: repeating-linear-gradient(45deg, var(--diag-line) 0 1px, transparent 1px 10px); }

/* ===== Section ===== */
.section { padding: var(--section) 0; }
.section--tint { background: var(--tint); }
.section--top { border-top: var(--line-strong); }
.grid-75, .grid-57, .grid-84 { display: grid; gap: var(--s6); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 64rem) {
  .grid-75 { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--s7); }
  .grid-57 { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--s7); }
  .grid-84 { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: var(--s7); }
}
.section-intro { margin-bottom: var(--s7); }
.section-intro p { font-size: 1.125rem; }

/* ===== Hero ===== */
.hero { position: relative; overflow: hidden; border-bottom: var(--line); }
.hero-inner { position: relative; z-index: 1; padding: var(--s8) 0 var(--s7); }
.hero h1 { max-width: 13ch; }
.hero .sub { font-size: 1.1875rem; color: var(--fg-muted); max-width: 46ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--s3); margin-top: var(--s6); }
.gable {
  position: absolute; right: -12%; bottom: 0; width: 70%; max-width: 640px; aspect-ratio: 2 / 1;
  background: var(--tint); clip-path: polygon(50% 0, 100% 100%, 0 100%); z-index: 0; opacity: .7;
}
.gable::after {
  content: ""; position: absolute; inset: 0;
  background-image: repeating-linear-gradient(0deg, transparent 0 22px, var(--fg) 22px 24px);
  opacity: .08;
}
@media (min-width: 64rem) {
  .hero-inner { padding: var(--s10) 0 var(--s9); }
  .gable { right: 0; width: 46%; opacity: 1; }
}
.page-hero .hero-inner { padding: var(--s8) 0 var(--s7); }
.page-hero h1 { font-size: clamp(2.25rem, 5vw + 1rem, 5rem); max-width: 16ch; }
.page-hero .gable { width: 40%; opacity: .55; }
@media (min-width: 64rem) { .page-hero .hero-inner { padding: var(--s9) 0 var(--s8); } .page-hero .gable { width: 32%; opacity: 1; } }

/* Fact bar */
.facts { display: grid; grid-template-columns: minmax(0, 1fr); background: var(--tint); border-top: var(--line); border-bottom: var(--line); }
.facts li { list-style: none; padding: var(--s4) var(--gutter); font: 700 0.8125rem/1.4 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; }
.facts li + li { border-top: var(--line); }
.facts { margin: 0; padding: 0; }
@media (min-width: 48rem) {
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts li + li { border-top: 0; }
  .facts li:nth-child(n+3) { border-top: var(--line); }
  .facts li:nth-child(even) { border-left: var(--line); }
}
@media (min-width: 64rem) {
  .facts { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .facts li:nth-child(n+3) { border-top: 0; }
  .facts li + li { border-left: var(--line); }
  .facts li { padding: var(--s5) var(--s5); }
}

/* ===== Service grid ===== */
.svc-grid { display: grid; grid-template-columns: minmax(0, 1fr); border-top: var(--line); border-left: var(--line); margin: 0; padding: 0; list-style: none; }
@media (min-width: 48rem) { .svc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 64rem) { .svc-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.svc {
  border-right: var(--line); border-bottom: var(--line); background: var(--bg);
  padding: var(--s5); min-height: 180px; display: flex; flex-direction: column; gap: var(--s3);
  transition: background-color 200ms var(--ease), color 200ms var(--ease), transform 200ms var(--ease);
}
@media (min-width: 64rem) { .svc { padding: var(--s6); } }
.svc-no { font: 700 0.8125rem/1 var(--font-mono); letter-spacing: 0.08em; color: var(--primary); }
.svc h3 { margin: 0; }
.svc p { margin: 0; color: var(--fg-muted); font-size: 1rem; }
.svc:hover { background: var(--primary); color: var(--white); transform: scale(1.01); position: relative; z-index: 1; }
.svc:hover .svc-no, .svc:hover p { color: var(--white); }
.svc--feature { background: var(--slate); color: var(--on-slate); }
.svc--feature .svc-no { color: var(--tint); }
.svc--feature p { color: var(--on-slate); }

/* Arrow link */
.arrow-link { display: inline-flex; align-items: center; gap: var(--s2); min-height: var(--tap); font: 700 1rem/1 var(--font-body); letter-spacing: 0.04em; text-transform: uppercase; text-decoration: none; color: var(--primary); }
.arrow-link .arr { display: inline-block; transform: rotate(-45deg); transition: transform 200ms var(--ease); }
.arrow-link:hover .arr { transform: rotate(0); }

/* ===== Dachlatte steps ===== */
.latte { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--s6); position: relative; counter-reset: st; }
.latte::before { content: ""; position: absolute; left: 23px; top: 24px; bottom: 24px; width: 4px; background: var(--fg); }
.latte li { position: relative; padding-left: 72px; counter-increment: st; }
.latte li::before {
  content: counter(st, decimal-leading-zero); position: absolute; left: 0; top: 0;
  width: 50px; height: 50px; border-radius: 50%; background: var(--primary); color: var(--white);
  display: flex; align-items: center; justify-content: center; font: 700 0.875rem/1 var(--font-mono);
  border: 4px solid var(--bg);
}
.latte h3 { margin-bottom: var(--s2); }
@media (min-width: 64rem) {
  .latte { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .latte::before { left: 24px; right: 24px; top: 23px; bottom: auto; width: auto; height: 4px; }
  .latte li { padding-left: 0; padding-top: 80px; }
}
.section--tint .latte li::before { border-color: var(--tint); }

/* ===== Plate (Typenschild) ===== */
.plate { border: var(--line-strong); background: var(--bg); margin: 0; }
.plate div { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--s1); padding: var(--s3) var(--s4); }
.plate div + div { border-top: var(--line); }
.plate dt { font: 700 0.75rem/1.3 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-muted); }
.plate dd { margin: 0; font: 700 1rem/1.4 var(--font-mono); }
@media (min-width: 30rem) { .plate div { grid-template-columns: 11rem minmax(0, 1fr); align-items: baseline; } }

/* ===== Team photo ===== */
.photo { border: var(--line-strong); margin: 0; background: var(--muted); }
.photo img { width: 100%; aspect-ratio: 21 / 9; object-fit: cover; filter: grayscale(1); transition: filter 400ms var(--ease); }
.photo:hover img, .photo.is-visible img { filter: grayscale(0); }
.photo figcaption { font: 700 0.75rem/1.3 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; padding: var(--s3) var(--s4); border-top: var(--line); background: var(--bg); }

/* ===== Check list ===== */
.ticks { list-style: none; margin: 0 0 var(--s6); padding: 0; border-top: var(--line); }
.ticks li { display: grid; grid-template-columns: 2.5rem minmax(0, 1fr); gap: var(--s3); padding: var(--s4) 0; border-bottom: var(--line); }
.ticks .tno { font: 700 0.8125rem/1.8 var(--font-mono); color: var(--primary); }
.ticks strong { display: block; font: 700 1.1875rem/1.3 var(--font-display); }
.ticks span span { color: var(--fg-muted); }

/* ===== Contact (blue) ===== */
.on-blue { background: var(--primary); color: var(--white); }
.on-blue h2 { color: var(--white); }
.on-blue p { color: var(--white); }
.form-box { background: var(--bg); color: var(--fg); border: 4px solid var(--fg); padding: var(--s5); }
@media (min-width: 64rem) { .form-box { padding: var(--s6); } }
.form-box h3 { margin-bottom: var(--s3); }
.field { margin-bottom: var(--s4); }
.field label { display: block; font: 700 0.8125rem/1.3 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: var(--s2); }
.field input, .field textarea {
  width: 100%; min-height: 56px; padding: var(--s3) var(--s4); font: inherit; color: var(--fg);
  background: var(--tint); border: 2px solid var(--fg); border-radius: var(--radius);
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field textarea:focus { outline: none; border: 4px solid var(--primary); padding: calc(var(--s3) - 2px) calc(var(--s4) - 2px); }
.field input:user-invalid, .field textarea:user-invalid { border-color: var(--fg); background: var(--muted); }
.req { color: var(--primary); }
.form-note { font-size: 0.9375rem; color: var(--fg-muted); }
.form-note a { color: var(--primary); }
[data-contact-status] { font-weight: 700; min-height: 1.6em; margin: var(--s3) 0 0; }
.big-phone { display: inline-block; font: 800 clamp(1.75rem, 3.5vw + 1rem, 3.5rem)/1 var(--font-display); letter-spacing: -0.02em; color: var(--white); text-decoration: none; white-space: nowrap; margin-bottom: var(--s5); }
.big-phone:hover { text-decoration: underline; color: var(--white); }
.contact-data { list-style: none; margin: 0 0 var(--s5); padding: 0; border-top: 2px solid var(--tint); }
.contact-data li { display: grid; grid-template-columns: 5rem minmax(0, 1fr); gap: var(--s3); align-items: center; min-height: 52px; border-bottom: 2px solid var(--tint); font-family: var(--font-mono); }
.contact-data .k { font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--tint); }
.contact-data a { color: var(--white); text-decoration: none; display: inline-flex; align-items: center; min-height: var(--tap); white-space: nowrap; }
.contact-data a:hover { text-decoration: underline; }
.on-blue address { font-family: var(--font-mono); color: var(--white); }

/* ===== Prose (legal) ===== */
.prose { max-width: 48rem; }
.prose h2 { font-size: clamp(1.5rem, 2vw + 1rem, 2rem); margin-top: var(--s7); padding-top: var(--s4); border-top: var(--line); }
.prose h2:first-child { margin-top: 0; }
.prose ul { padding-left: 1.2em; max-width: 65ch; }
.prose li { margin-bottom: var(--s2); }

/* ===== Footer ===== */
.site-footer { background: var(--slate); color: var(--on-slate); border-top: 4px solid var(--tint); padding: var(--s9) 0 var(--s5); overflow: hidden; }
.footer-ghost { font: 800 clamp(2.5rem, 9vw, 8rem)/0.9 var(--font-display); letter-spacing: -0.03em; color: var(--ghost-on-slate); margin: 0 0 var(--s7); overflow-wrap: anywhere; }
.footer-cols { display: grid; gap: var(--s6); grid-template-columns: minmax(0, 1fr); padding-bottom: var(--s6); border-bottom: 2px solid var(--fg-muted); }
@media (min-width: 48rem) { .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 64rem) { .footer-cols { grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); } }
.footer-h { font: 700 0.8125rem/1.3 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--tint); margin: 0 0 var(--s3); }
.site-footer p, .site-footer address { color: var(--on-slate); margin: 0 0 var(--s3); }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer a { color: var(--on-slate); text-decoration: none; display: inline-flex; align-items: center; min-height: var(--tap); white-space: nowrap; }
.site-footer a:hover { color: var(--tint); text-decoration: underline; }
.footer-meta { font: 400 0.75rem/1.5 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--on-slate); opacity: .7; padding-top: var(--s4); margin: 0; }

/* ===== Reveal ===== */
.js .reveal { opacity: 0; transform: translateY(12px); transition: opacity 400ms var(--ease), transform 400ms var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }