/* Sonnwerk Solartechnik · Basic-Beispiel · keine Animationen, nur Hover-Zustände */
@font-face { font-family: "Bricolage"; src: url("fonts/bricolage-grotesque-latin-700-normal.woff2") format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Bricolage"; src: url("fonts/bricolage-grotesque-latin-800-normal.woff2") format("woff2"); font-weight: 800; font-display: swap; }
@font-face { font-family: "Public Sans"; src: url("fonts/public-sans-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Public Sans"; src: url("fonts/public-sans-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Plex Mono"; src: url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-display: swap; }

:root {
  --paper: #F5F0E6; --paper-2: #ECE3D1; --card: #FFFDF8;
  --ink: #111C2E; --ink-2: #1B2A42; --muted: #4A5364;
  --sun: #F3A712; --sun-hover: #FFBA33; --sun-text: #8A5200; --copper: #B4532A;
  --line: rgba(17, 28, 46, .16); --line-light: rgba(245, 240, 230, .18);
  --error: #A3261B;
  --display: "Bricolage", "Arial Narrow", system-ui, sans-serif;
  --body: "Public Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --mono: "Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --wrap: 1180px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--body); font-size: 1.0625rem; line-height: 1.6; color: var(--ink); background: var(--paper); }
img, svg { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { font-family: var(--display); line-height: 1.08; letter-spacing: -0.02em; margin: 0 0 .5em; text-wrap: balance; }
h1 { font-weight: 800; font-size: clamp(2.4rem, 6.2vw, 4.4rem); letter-spacing: -0.035em; }
h2 { font-weight: 800; font-size: clamp(1.9rem, 4vw, 2.9rem); }
h3 { font-weight: 700; font-size: 1.2rem; letter-spacing: -0.01em; }
p { margin: 0 0 1em; text-wrap: pretty; }
a { color: inherit; text-underline-offset: 3px; }
.mono { font-family: var(--mono); font-weight: 500; letter-spacing: .02em; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
:focus-visible { outline: 3px solid var(--sun); outline-offset: 3px; }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--sun); color: var(--ink); padding: 8px 14px; font-weight: 600; z-index: 100; }
.skip:focus { left: 8px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 15px 22px; border-radius: 3px; font: 600 1rem/1.2 var(--body); text-decoration: none; border: 2px solid transparent; cursor: pointer; white-space: nowrap; }
.btn-sun { background: var(--sun); color: var(--ink); border-color: var(--ink); box-shadow: 4px 4px 0 var(--ink); }
.btn-sun:hover { background: var(--sun-hover); }
.btn-line { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-line:hover { background: var(--ink); color: var(--paper); }
.btn-ink { background: var(--ink); color: var(--paper); padding: 11px 16px; }
.btn-ink:hover { background: var(--ink-2); }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--sun); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 20; background: var(--paper); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; gap: 16px; min-height: 70px; flex-wrap: wrap; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); margin-right: auto; }
.logo-mark { width: 40px; height: 28px; }
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-text b { font-family: var(--display); font-weight: 800; font-size: 1.35rem; letter-spacing: -0.03em; }
.logo-text small { font-family: var(--mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .22em; color: var(--muted); margin-top: 4px; }
.logo-light { color: var(--paper); }
.logo-light .logo-text small { color: #B9B3A6; }
.menu-toggle { font: 600 .95rem var(--body); background: none; border: 2px solid var(--ink); border-radius: 3px; padding: 8px 14px; color: var(--ink); cursor: pointer; }
.main-nav { display: none; width: 100%; }
.main-nav.open { display: block; }
.main-nav ul { list-style: none; margin: 0; padding: 0 0 14px; }
.main-nav a { display: block; padding: 12px 0; border-top: 1px solid var(--line); text-decoration: none; font-weight: 600; }
.main-nav a:hover { color: var(--sun-text); }
.header-phone { display: none; }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 44px 0 64px; border-bottom: 1px solid var(--line); }
.sun-path { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-grid { position: relative; display: grid; gap: 44px; }
.kicker { font-size: .78rem; text-transform: uppercase; letter-spacing: .14em; color: var(--muted); margin-bottom: 18px; }
.kicker::before { content: ""; display: inline-block; width: 26px; height: 2px; background: var(--sun); vertical-align: middle; margin-right: 10px; }
.mark { background: linear-gradient(transparent 62%, var(--sun) 62%, var(--sun) 92%, transparent 92%); padding: 0 .06em; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 32em; }
.cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0 26px; }
.ticks { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; }
.ticks li::before { content: "✓"; color: var(--sun-text); margin-right: 8px; font-weight: 700; }
.hero-visual { position: relative; }
.frame { border: 2px solid var(--ink); border-radius: 4px; overflow: hidden; box-shadow: 10px 10px 0 var(--ink); background: var(--card); }
.plate { background: var(--card); border: 2px solid var(--ink); border-radius: 4px; margin: 0; font-size: .8rem; }
.hero-visual .plate { position: relative; width: min(310px, 90%); margin: -34px 0 0 auto; }
.plate > div { display: grid; grid-template-columns: 78px 1fr; gap: 10px; padding: 7px 14px; border-top: 1px dashed var(--line); }
.plate > div:nth-child(2) { border-top: 0; }
.plate dt { color: var(--muted); text-transform: uppercase; font-size: .7rem; letter-spacing: .12em; padding-top: 2px; }
.plate dd { margin: 0; color: var(--ink); overflow-wrap: anywhere; }
.plate .plate-head { display: flex; justify-content: space-between; background: var(--ink); color: var(--paper); text-transform: uppercase; letter-spacing: .12em; font-size: .72rem; padding: 8px 14px; border: 0; }
.plate-head span:last-child { color: var(--sun); }

/* Sections */
.sec { padding: 76px 0; }
.tint { background: var(--paper-2); }
.dark { background: var(--ink); color: var(--paper); }
.sec-head { margin-bottom: 40px; max-width: 760px; }
.label { font-size: .78rem; text-transform: uppercase; letter-spacing: .16em; color: var(--muted); margin-bottom: 14px; }
.label span { display: inline-block; background: var(--sun); color: var(--ink); padding: 2px 7px; margin-right: 8px; border-radius: 2px; letter-spacing: .04em; }
.dark .label { color: #C9C2B3; }
.intro { font-size: 1.1rem; color: var(--muted); }

/* Leistungen: Raster wie Solarzellen */
.grid-cells { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr; border: 2px solid var(--ink); background: var(--card); }
.cell { position: relative; padding: 28px 24px 26px; border-top: 1px solid var(--line); }
.cell:first-child { border-top: 0; }
.cell:hover { background: #FFF6E2; }
.cell .idx { position: absolute; top: 18px; right: 20px; font-size: .75rem; color: var(--muted); }
.ico { width: 40px; height: 40px; color: var(--ink); margin-bottom: 16px; padding: 6px; background: var(--sun); border-radius: 50% 50% 3px 3px; }
.cell p { color: var(--muted); margin: 0; }

/* Ablauf: Stromlaufplan */
.circuit { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; position: relative; }
.circuit li { position: relative; padding: 0 0 34px 72px; }
.circuit li::before { content: ""; position: absolute; left: 25px; top: 52px; bottom: 0; width: 2px; background: var(--sun); }
.circuit li:last-child::before { display: none; }
.node { position: absolute; left: 0; top: 0; width: 52px; height: 52px; border-radius: 50%; border: 2px solid var(--sun); display: grid; place-items: center; color: var(--sun); font-size: 1rem; background: var(--ink); }
.circuit h3 { color: var(--paper); padding-top: 12px; }
.circuit p { color: #C9C2B3; margin: 0; }

/* Über uns */
.about { display: grid; gap: 44px; }
.statement { font-family: var(--display); font-weight: 700; font-size: clamp(1.4rem, 2.6vw, 1.9rem); line-height: 1.22; letter-spacing: -0.02em; border-left: 6px solid var(--sun); padding-left: 20px; margin: 8px 0 24px; }
.about > div > p:last-child { color: var(--muted); }
.args { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; border-top: 2px solid var(--ink); }
.args li { padding: 20px 0 18px 44px; border-bottom: 1px solid var(--line); position: relative; }
.args li::before { content: "+"; position: absolute; left: 4px; top: 14px; font-family: var(--display); font-weight: 800; font-size: 1.8rem; line-height: 1; color: var(--copper); }
.args h3 { margin-bottom: .3em; }
.args p { color: var(--muted); margin: 0; }

/* Kontakt */
.contact { display: grid; gap: 40px; align-items: start; }
.contact-plate { margin-top: 26px; font-size: .85rem; }
.contact-plate a { text-decoration-color: var(--sun); }
.form-card { background: var(--card); border: 2px solid var(--ink); border-radius: 4px; padding: 26px 22px; box-shadow: 8px 8px 0 var(--ink); }
.req-note { font-size: .9rem; color: var(--muted); }
.form-row { margin-bottom: 16px; }
label { display: block; font-weight: 600; margin-bottom: 6px; }
input[type=text], input[type=tel], input[type=email], select, textarea { width: 100%; font: inherit; color: var(--ink); background: var(--paper); border: 2px solid #7D8594; border-radius: 3px; padding: 12px; }
textarea { min-height: 130px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 3px solid var(--sun); outline-offset: 1px; border-color: var(--ink); }
[aria-invalid="true"] { border-color: var(--error); }
.field-error { color: var(--error); font-size: .92rem; font-weight: 600; margin: 6px 0 0; }
.field-error:empty { display: none; }
.check { display: flex; gap: 12px; align-items: flex-start; }
.check input { width: 22px; height: 22px; margin-top: 3px; flex: none; accent-color: var(--ink); }
.check label { font-weight: 400; margin: 0; }
.form-card .btn-sun { margin-top: 6px; }
.form-status { margin: 18px 0 0; padding: 14px 16px; border: 2px solid var(--ink); background: #FFF1CC; font-weight: 600; border-radius: 3px; }

/* Footer, Hinweis */
.site-footer { background: var(--ink); color: #D9D2C3; padding: 36px 0; font-size: .95rem; }
.foot { display: grid; gap: 18px; }
.foot p { margin: 0; }
.footer-links { display: flex; gap: 22px; }
.footer-links a { color: var(--paper); }
.cookie { position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 50; max-width: 460px; background: var(--ink); color: var(--paper); border-radius: 4px; padding: 18px 20px; box-shadow: 6px 6px 0 var(--sun); }
.cookie p { font-size: .92rem; margin-bottom: 12px; }
.cookie .btn-sun { box-shadow: none; border-color: var(--sun); }

/* Rechtsseiten */
.legal .wrap { max-width: 780px; padding-top: 48px; padding-bottom: 72px; }
.legal h1 { font-size: clamp(2rem, 5vw, 3rem); }
.legal h2 { font-size: 1.3rem; margin-top: 1.8em; }
.demo-note { font-family: var(--mono); font-size: .85rem; background: var(--card); border: 2px solid var(--ink); border-left: 8px solid var(--sun); padding: 12px 16px; margin-bottom: 28px; }

@media (min-width: 720px) {
  .grid-cells { grid-template-columns: 1fr 1fr; }
  .cell { border-left: 1px solid var(--line); }
  .cell:nth-child(2n+1) { border-left: 0; }
  .cell:nth-child(2) { border-top: 0; }
  .foot { grid-template-columns: auto 1fr auto; align-items: center; }
  .foot p { text-align: center; }
}
@media (min-width: 960px) {
  .menu-toggle { display: none; }
  .main-nav { display: block; width: auto; }
  .main-nav ul { display: flex; gap: 26px; padding: 0; }
  .main-nav a { border: 0; padding: 6px 0; }
  .main-nav .nav-phone { display: none; }
  .header-phone { display: inline-flex; }
  .hero { padding: 72px 0 88px; }
  .hero-grid { grid-template-columns: 1.08fr .92fr; align-items: center; gap: 56px; }
  .hero-visual { padding-bottom: 120px; }
  .hero-visual .plate { position: absolute; right: -18px; bottom: 0; margin: 0; }
  .sec { padding: 104px 0; }
  .sec-head { display: grid; grid-template-columns: 1fr; }
  .grid-cells { grid-template-columns: repeat(3, 1fr); }
  .cell:nth-child(2n+1) { border-left: 1px solid var(--line); }
  .cell:nth-child(3n+1) { border-left: 0; }
  .cell:nth-child(3) { border-top: 0; }
  .circuit { grid-template-columns: repeat(4, 1fr); gap: 28px; }
  .circuit li { padding: 76px 0 0; }
  .circuit li::before { left: 52px; right: -28px; top: 25px; bottom: auto; width: auto; height: 2px; }
  .circuit h3 { padding-top: 0; }
  .about { grid-template-columns: 1.1fr .9fr; gap: 72px; align-items: start; }
  .contact { grid-template-columns: .85fr 1.15fr; gap: 64px; }
  .form-card { padding: 34px 32px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}