/*
Theme Name: Bircher Bau
Author: Bircher Bau AG
Description: Theme für die Website der Bircher Bau AG.
Version: 1.0
Text Domain: bircherbau
*/

  :root{
    --bg: #EDEAE2;
    --bg-panel: #E3DECF;
    --ink: #23221E;
    --ink-soft: #55534B;
    --brick: #B65A2E;
    --brick-dark: #9A4A24;
    --steel: #4B5B57;
    --ochre: #C98A1F;
    --line: #C9C2B0;
    --line-strong: #23221E;
    --paper: #F7F5EF;
    --radius: 2px;
    --max: 1180px;
  }

  *,*::before,*::after{ box-sizing: border-box; }
  html{ scroll-behavior: smooth; }
  @media (prefers-reduced-motion: reduce){
    html{ scroll-behavior: auto; }
    *,*::before,*::after{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  }

  body{
    margin:0;
    background: var(--bg);
    color: var(--ink);
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }

  h1,h2,h3,.disp{
    font-family: 'Big Shoulders Display', sans-serif;
    font-weight: 800;
    line-height: 0.92;
    letter-spacing: 0.005em;
    margin: 0;
    text-transform: uppercase;
  }

  a{ color: inherit; }
  img,svg{ display:block; max-width:100%; }

  .wrap{
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 28px;
  }

  a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
    outline: 2px solid var(--brick);
    outline-offset: 3px;
  }

  /* ---------- corner ticks (blueprint registration marks) ---------- */
  .ticked{ position: relative; }
  .ticked::before, .ticked::after,
  .ticked .tick-r::before, .ticked .tick-r::after{
    content:"";
    position:absolute;
    width: 14px; height: 14px;
    border: 1.5px solid var(--ink);
    opacity: 0.55;
  }
  .ticked::before{ top:-1px; left:-1px; border-right:none; border-bottom:none; }
  .ticked::after{ bottom:-1px; left:-1px; border-right:none; border-top:none; }
  .ticked .tick-r{ position:absolute; inset:0; pointer-events:none; }
  .ticked .tick-r::before{ top:-1px; right:-1px; border-left:none; border-bottom:none; left:auto; }
  .ticked .tick-r::after{ bottom:-1px; right:-1px; border-left:none; border-top:none; left:auto; }

  /* ---------- header ---------- */
  header{
    position: sticky; top:0; z-index: 50;
    background: rgba(237,234,226,0.92);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--line);
  }
  .nav{
    display:flex; align-items:center; justify-content:space-between;
    padding: 18px 28px;
    max-width: var(--max); margin:0 auto;
  }
  .brand{
    font-family:'Big Shoulders Display', sans-serif;
    font-weight:800; font-size: 1.5rem; text-transform:uppercase;
    letter-spacing:0.01em;
    text-decoration:none;
    display:flex; align-items:baseline; gap:8px;
  }
  .brand span{ color: var(--brick); }
  .brand-logo{ height:44px; width:auto; display:block; border-radius:3px; }
  nav.links{ display:flex; gap: 32px; }
  nav.links a{
    text-decoration:none; font-size: 0.95rem; font-weight:500; color: var(--ink-soft);
    padding-bottom: 3px; border-bottom: 1px solid transparent;
    transition: color .15s ease, border-color .15s ease;
  }
  nav.links a:hover{ color: var(--ink); border-color: var(--brick); }
  .nav-cta{
    display:inline-flex; align-items:center; gap:8px;
    font-weight:600; font-size:0.95rem;
    text-decoration:none; color: var(--paper);
    background: var(--ink); padding: 10px 18px;
    border-radius: var(--radius);
    white-space:nowrap;
  }
  .nav-cta:hover{ background: var(--brick); }
  .burger{ display:none; background:none; border:none; cursor:pointer; padding:6px; }
  .burger span{ display:block; width:24px; height:2px; background:var(--ink); margin:5px 0; }

  /* ---------- hero ---------- */
  .hero{
    padding: 72px 0 56px;
    border-bottom: 1px solid var(--line);
  }
  .hero-grid{
    display:grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items:center;
  }
  .kicker{
    font-size:0.85rem; color: var(--steel); font-weight:600;
    margin: 0 0 18px; letter-spacing: 0.01em;
  }
  .hero h1{
    font-size: clamp(2.6rem, 6vw, 4.6rem);
    color: var(--ink);
  }
  .hero h1 em{
    font-style:normal; color: var(--brick);
  }
  .hero p.lead{
    margin: 26px 0 34px;
    max-width: 46ch;
    font-size: 1.1rem;
    color: var(--ink-soft);
  }
  .btn-row{ display:flex; gap:16px; flex-wrap:wrap; }
  .btn{
    display:inline-flex; align-items:center; gap:10px;
    padding: 14px 26px; font-weight:600; font-size:0.98rem;
    text-decoration:none; border-radius: var(--radius);
    border: 1px solid var(--ink);
    transition: transform .15s ease, background .15s ease, color .15s ease;
  }
  .btn-primary{ background: var(--brick); border-color: var(--brick); color: var(--paper); }
  .btn-primary:hover{ background: var(--brick-dark); border-color: var(--brick-dark); }
  .btn-ghost{ background: transparent; color: var(--ink); }
  .btn-ghost:hover{ background: var(--ink); color: var(--paper); }

  .hero-art{
    padding: 12px;
    background: var(--paper);
    border: 1px solid var(--line);
  }
  .hero-photo{
    width:100%; height: 360px; object-fit: cover; display:block;
  }
  .dim-overlay{ width:100%; height:auto; margin-top: 4px; }
  .dim-label{ font-size: 11px; fill: var(--ink-soft); font-family:'Inter',sans-serif; }

  /* ---------- stats ---------- */
  .stats{ border-bottom: 1px solid var(--line); background: var(--bg-panel); }
  .stats-row{
    display:grid; grid-template-columns: repeat(4,1fr);
  }
  .stat{
    padding: 26px 20px;
    text-align:center;
    border-left: 1px solid var(--line);
  }
  .stat:first-child{ border-left:none; }
  .stat .num{
    font-family:'Big Shoulders Display',sans-serif;
    font-weight:800; font-size: 2.4rem; color: var(--brick); line-height:1;
  }
  .stat .lbl{
    margin-top:6px; font-size:0.85rem; color: var(--ink-soft); font-weight:500;
  }

  /* ---------- section heading pattern ---------- */
  .section{ padding: 86px 0; border-bottom: 1px solid var(--line); }
  .section-head{
    display:flex; justify-content:space-between; align-items:flex-end; gap: 24px;
    margin-bottom: 48px; flex-wrap:wrap;
  }
  .section-head h2{ font-size: clamp(2rem, 4vw, 3rem); }
  .section-head p{ max-width: 40ch; color: var(--ink-soft); margin: 10px 0 0; }
  .section-num{
    font-family:'Big Shoulders Display',sans-serif;
    font-size: 1rem; color: var(--steel); font-weight:700;
  }

  /* ---------- services (spec-sheet list) ---------- */
  .spec-list{ border-top: 1px solid var(--line-strong); }
  .spec-row{
    display:grid; grid-template-columns: 260px 1fr 140px;
    gap: 24px; padding: 28px 0;
    border-bottom: 1px solid var(--line);
    align-items:baseline;
  }
  .spec-row h3{
    font-size: 1.5rem; color: var(--ink);
  }
  .spec-row p{ margin:0; color: var(--ink-soft); max-width: 56ch; }
  .spec-row .tag{
    justify-self:end; font-size: 0.82rem; color: var(--steel);
    border: 1px solid var(--line); padding: 6px 12px; border-radius: var(--radius);
    white-space:nowrap;
  }

  /* ---------- about ---------- */
  .about-grid{
    display:grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items:center;
  }
  .about-grid p{ color: var(--ink-soft); margin: 0 0 18px; max-width: 54ch; }
  .about-figure{
    padding: 12px; background: var(--paper); border: 1px solid var(--line);
  }
  .about-photo{ width:100%; height: 420px; object-fit: cover; display:block; }
  .pull{
    margin-top: 28px; padding-left: 20px; border-left: 3px solid var(--brick);
    font-family:'Big Shoulders Display', sans-serif; font-weight:700; text-transform:none;
    font-size: 1.3rem; line-height:1.25; color: var(--ink);
  }

  /* ---------- projects ---------- */
  .projects-grid{
    display:grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
  }
  .project{
    background: var(--paper); padding: 0; position:relative;
  }
  .project figure{ margin:0; }
  .project-photo{ width:100%; height: 220px; object-fit: cover; display:block; }
  .project figcaption{ padding: 20px 24px 24px; }
  .project figcaption .p-name{
    font-family:'Big Shoulders Display',sans-serif; font-weight:700; font-size:1.3rem;
  }
  .project figcaption .p-meta{
    margin-top:4px; font-size:0.88rem; color: var(--ink-soft);
  }

  /* ---------- contact ---------- */
  .contact-grid{
    display:grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px;
  }
  .contact-info dl{ margin: 28px 0 0; }
  .contact-info dt{
    font-size:0.82rem; color: var(--steel); font-weight:600; margin-top: 20px;
  }
  .contact-info dd{ margin: 4px 0 0; font-size: 1.05rem; }
  .contact-info dd a{ text-decoration:none; }
  .contact-info dd a:hover{ color: var(--brick); }
  .map-frame{ margin-top: 28px; border: 1px solid var(--line); }
  .map-frame iframe{ width:100%; height: 220px; border:0; filter: grayscale(0.35) contrast(1.05); display:block; }

  form.contact-form{
    background: var(--paper); border: 1px solid var(--line); padding: 32px;
  }
  .form-row{ display:grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .field{ margin-bottom: 18px; display:flex; flex-direction:column; gap: 6px; }
  .field label{ font-size: 0.85rem; font-weight:600; color: var(--ink-soft); }
  .field input, .field select, .field textarea{
    font: inherit; padding: 12px 14px; border: 1px solid var(--line-strong);
    background: var(--bg); border-radius: var(--radius); color: var(--ink);
  }
  .field textarea{ resize: vertical; min-height: 110px; }
  .form-note{ font-size: 0.85rem; color: var(--ink-soft); margin-top: 14px; }
  #form-status{ margin-top: 14px; font-size: 0.92rem; font-weight:600; }
  #form-status.ok{ color: #3d6b3d; }
  #form-status.err{ color: var(--brick-dark); }

  /* ---------- footer ---------- */
  footer{ padding: 40px 0; }
  .foot-row{
    display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap: 16px;
  }
  .foot-row .brand{ font-size: 1.15rem; }
  .foot-links{ display:flex; gap: 22px; font-size:0.88rem; color: var(--ink-soft); }
  .foot-links a{ text-decoration:none; }
  .foot-links a:hover{ color: var(--brick); }

  /* ---------- responsive ---------- */
  @media (max-width: 940px){
    .hero-grid{ grid-template-columns: 1fr; }
    .hero-art{ order:-1; }
    .about-grid{ grid-template-columns: 1fr; }
    .contact-grid{ grid-template-columns: 1fr; }
    .stats-row{ grid-template-columns: repeat(2,1fr); }
    .stat:nth-child(3){ border-left:none; }
    .projects-grid{ grid-template-columns: 1fr; }
    .spec-row{ grid-template-columns: 1fr; gap: 8px; }
    .spec-row .tag{ justify-self:start; }
  }
  @media (max-width: 720px){
    nav.links{ display:none; }
    .burger{ display:block; }
    .nav-cta{ padding: 9px 14px; font-size: 0.85rem; }
    .form-row{ grid-template-columns: 1fr; }
    .section{ padding: 56px 0; }
  }

/* Imagefilm im Hero */
.hero-video{display:block;width:100%;height:auto;aspect-ratio:16/9;background:var(--bg-panel);}
.hero-grid>*{min-width:0;}