/* Qelno – Website-CSS für qelno.link und qelno.cloud
   Grundlage: Qelno CI Book v1.2 (04.10.2026, fortgeschrieben 19.10.2026).
   Farben: Ink #1A1A1A · Paper #F4F1EA · White #FFFFFF · Light #E3E3E3 · Muted #5C5C5C.
   Kein Verlauf, keine runden Ecken (--radius: 0), Bedienelemente 40 px+, Fokus 2 px Tinte mit 2 px Abstand.
   Amber ist Werkzeugfarbe (107C) und wird hier bewusst nicht verwendet. Schriften lokal (OFL), keine Drittanfragen. */

@font-face { font-family: "Outfit"; font-weight: 400; font-display: swap; src: url("../fonts/outfit-400.woff2") format("woff2"); }
@font-face { font-family: "Outfit"; font-weight: 500; font-display: swap; src: url("../fonts/outfit-500.woff2") format("woff2"); }
@font-face { font-family: "Outfit"; font-weight: 900; font-display: swap; src: url("../fonts/outfit-900.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 400; font-display: swap; src: url("../fonts/inter-400.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 600; font-display: swap; src: url("../fonts/inter-600.woff2") format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-weight: 400; font-display: swap; src: url("../fonts/jbmono-400.woff2") format("woff2"); }

:root {
  --ink: #1A1A1A; --paper: #F4F1EA; --white: #FFFFFF; --light: #E3E3E3; --muted: #5C5C5C;
  --line: #D7D1C6;           /* Haarlinie – nur Dekoration */
  --radius: 0; --ctl-h: 44px;
  --wrap: 72rem; --gut: clamp(1rem, 4vw, 2.5rem);
  --f-mark: "Outfit", system-ui, sans-serif;
  --f-text: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, monospace;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1.0625rem/1.6 var(--f-text); overflow-wrap: break-word; }
img, svg { max-width: 100%; height: auto; display: block; }
.grid > *, .steps > li, .hero-grid > *, .cols > * { min-width: 0; }
p, li, dd, figcaption, summary { overflow-wrap: anywhere; }
tbody th { white-space: nowrap; }
.cmp td { min-width: 7rem; }
a { color: var(--ink); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.dark :focus-visible, .site-foot :focus-visible { outline-color: var(--light); }
p, ul, ol, dl, table, figure, blockquote { margin: 0 0 1rem; }
ul, ol { padding-left: 1.25rem; }
li { margin-bottom: .35rem; }
strong, b { font-weight: 600; }
code, .mono { font-family: var(--f-mono); font-size: .92em; }
h1, h2, h3, h4 { font-family: var(--f-mark); color: var(--ink); margin: 0 0 .75rem; line-height: 1.12; letter-spacing: -.01em; }
h1 { font-weight: 900; font-size: clamp(2.05rem, 1.4rem + 3.2vw, 3.6rem); }
h2 { font-weight: 900; font-size: clamp(1.55rem, 1.2rem + 1.5vw, 2.3rem); }
h3 { font-weight: 500; font-size: 1.3rem; line-height: 1.25; }
h4 { font-weight: 500; font-size: 1.1rem; }
.dark h1, .dark h2, .dark h3, .dark h4 { color: var(--light); }

/* Struktur */
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }
.skip { position: absolute; left: .5rem; top: -4rem; z-index: 10; background: var(--ink); color: var(--white); padding: .6rem 1rem; font-weight: 600; }
.skip:focus { top: .5rem; outline-color: var(--light); }
.site-head { border-bottom: 1px solid var(--ink); background: var(--paper); }
.site-head .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.5rem; padding-top: .9rem; padding-bottom: .9rem; }
.brand { display: inline-flex; align-items: center; gap: .65rem; text-decoration: none; min-height: var(--ctl-h); margin-right: auto; }
.brand img { width: 92px; }
.brand .dom { font: 400 .95rem/1 var(--f-mono); color: var(--muted); }
.nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0 .25rem; }
.nav li { margin: 0; }
.nav a { display: inline-flex; align-items: center; min-height: var(--ctl-h); padding: 0 .6rem; font: 500 1rem/1 var(--f-mark); text-decoration: none; border-bottom: 2px solid transparent; }
.nav a:hover { border-bottom-color: var(--ink); }
.nav a[aria-current="page"] { border-bottom-color: var(--ink); }
.lang a { display: inline-flex; align-items: center; min-height: var(--ctl-h); padding: 0 .6rem; border: 1px solid var(--ink); font: 500 .95rem/1 var(--f-mark); text-decoration: none; }
@media (max-width: 52rem) { .nav { order: 3; flex-basis: 100%; } .nav ul { margin-left: -.6rem; } }

main { display: block; }
.section { padding: clamp(2.5rem, 6vw, 5rem) 0; }
.section + .section { border-top: 1px solid var(--line); }
.section.dark { background: var(--ink); color: var(--light); border-top: 0; }
.section.dark a:not(.btn) { color: var(--light); }
.section.white { background: var(--white); }
.kicker { display: block; font: 400 .9rem/1 var(--f-mark); letter-spacing: .06em; margin-bottom: .6rem; color: var(--muted); }
.dark .kicker { color: var(--light); }
.title { padding-bottom: .55rem; border-bottom: 2px solid var(--ink); margin-bottom: 1.5rem; }
.dark .title { border-bottom-color: var(--light); }
.lead { font-size: clamp(1.1rem, 1rem + .5vw, 1.3rem); line-height: 1.55; max-width: 44rem; }
.muted { color: var(--muted); }
.dark .muted { color: var(--light); }
.measure { max-width: 46rem; }
.small { font-size: .94rem; }

/* Hero */
.hero { padding: clamp(2.5rem, 7vw, 6rem) 0 clamp(2.5rem, 6vw, 5rem); }
.hero-grid { display: grid; gap: 2.5rem; align-items: end; }
@media (min-width: 60rem) { .hero-grid { grid-template-columns: 1.35fr 1fr; } }
.lockup { width: min(19rem, 70vw); margin-bottom: 2rem; }
.hero h1 { max-width: 18ch; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.75rem; }

/* Knöpfe */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: var(--ctl-h); padding: .55rem 1.25rem; border: 2px solid var(--ink); background: var(--ink); color: var(--white); font: 500 1.02rem/1.2 var(--f-mark); text-decoration: none; text-align: center; }
.btn:hover { background: var(--paper); color: var(--ink); }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--white); }
.dark .btn { background: var(--light); color: var(--ink); border-color: var(--light); }
.dark .btn:hover, .dark .btn.ghost { background: transparent; color: var(--light); }
.dark .btn.ghost:hover { background: var(--light); color: var(--ink); }

/* Raster */
.grid { display: grid; gap: 1.25rem; }
@media (min-width: 40rem) { .g2, .g3, .g4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 64rem) { .g3 { grid-template-columns: repeat(3, 1fr); } .g4 { grid-template-columns: repeat(4, 1fr); } }
.card { background: var(--white); border: 1px solid var(--ink); padding: 1.4rem 1.4rem 1.2rem; display: flex; flex-direction: column; }
.card > :last-child { margin-bottom: 0; }
.card h3 { margin-bottom: .5rem; }
.card .n { font: 400 .9rem/1 var(--f-mark); color: var(--muted); margin-bottom: .9rem; }
.dark .card { background: transparent; border-color: var(--light); color: var(--light); }
.cols { display: grid; gap: 0; }
@media (min-width: 48rem) { .cols { grid-template-columns: repeat(3, 1fr); } .cols > div { padding: 0 1.4rem; border-left: 1px solid var(--ink); } .cols > div:first-child { padding-left: 0; border-left: 0; } }
@media (max-width: 47.99rem) { .cols > div { padding: 1.1rem 0; border-top: 1px solid var(--ink); } }
.dark .cols > div { border-color: var(--light); }

/* Türen / Preise */
.door { position: relative; }
.door h3 { font: 900 1.7rem/1.1 var(--f-mark); }
.door .tag { align-self: flex-start; font: 500 .85rem/1 var(--f-mark); letter-spacing: .04em; border: 1px solid var(--ink); padding: .35rem .55rem; margin-bottom: 1rem; }
.door .price { font: 900 2.3rem/1 var(--f-mark); margin: .25rem 0 .35rem; }
.door .price small { font: 400 1rem/1.3 var(--f-text); }
.door .per { color: var(--muted); margin-bottom: 1rem; }
.door ul { margin-bottom: 1.25rem; }
.door .btn { margin-top: auto; align-self: flex-start; }
.door.hi { border-width: 3px; }
.note { font-size: .94rem; color: var(--muted); }

/* Liste mit Häkchen ohne Farbe */
.ticks { list-style: none; padding: 0; }
.ticks li { padding-left: 1.6rem; position: relative; }
.ticks li::before { content: ""; position: absolute; left: .1rem; top: .55em; width: .8rem; height: .45rem; border-left: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(-45deg); }

/* Schritte */
.steps { list-style: none; padding: 0; counter-reset: st; display: grid; gap: 1rem; }
@media (min-width: 48rem) { .steps.h { grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); } }
.steps li { counter-increment: st; background: var(--white); border: 1px solid var(--ink); padding: 1rem 1.1rem 1rem 3.4rem; position: relative; margin: 0; }
.steps li::before { content: counter(st, decimal-leading-zero); position: absolute; left: 1rem; top: 1rem; font: 900 1.05rem/1.5 var(--f-mark); }
.steps b { display: block; font-family: var(--f-mark); font-weight: 500; font-size: 1.1rem; }

/* Tabellen */
.table-wrap table { margin: 0; }
.table-wrap { overflow-x: auto; border: 1px solid var(--ink); background: var(--white); margin-bottom: 1rem; }
table { border-collapse: collapse; width: 100%; background: var(--white); font-size: .98rem; }
caption { text-align: left; font: 500 1.05rem/1.3 var(--f-mark); padding: .9rem 1rem; border-bottom: 1px solid var(--ink); }
th, td { text-align: left; vertical-align: top; padding: .7rem 1rem; border-bottom: 1px solid var(--line); }
thead th { font-family: var(--f-mark); font-weight: 500; border-bottom: 2px solid var(--ink); background: var(--paper); }
tbody th { font-weight: 600; }
.cmp { min-width: 46rem; }
.yes::before { content: "✓ "; font-weight: 600; }
.no::before { content: "– "; }

/* Zitat: Linie links, keine Kursive */
blockquote { border-left: 3px solid var(--ink); padding: .2rem 0 .2rem 1.2rem; font: 500 clamp(1.3rem, 1rem + 1.4vw, 2rem)/1.3 var(--f-mark); }
.dark blockquote { border-left-color: var(--light); }

/* FAQ */
.faq details { border-top: 1px solid var(--ink); }
.faq details:last-child { border-bottom: 1px solid var(--ink); }
.faq summary { cursor: pointer; list-style: none; min-height: var(--ctl-h); padding: .8rem 2.5rem .8rem 0; position: relative; font: 500 1.12rem/1.35 var(--f-mark); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: .25rem; top: .55rem; font: 400 1.6rem/1 var(--f-mark); }
.faq details[open] summary::after { content: "–"; }
.faq .a { padding: 0 0 1rem; max-width: 46rem; }

/* QR + Adresse */
.qr { display: inline-flex; gap: 1rem; align-items: center; background: var(--white); border: 1px solid var(--ink); padding: 1rem; }
.qr img { width: 164px; image-rendering: pixelated; }
.qr .addr { font: 400 1.15rem/1.3 var(--f-mono); }

/* Bild */
figure.vis img { width: 100%; border: 1px solid var(--ink); }
figcaption { font-size: .9rem; color: var(--muted); margin-top: .5rem; }

/* Formular */
form.contact { display: grid; gap: 1.1rem; max-width: 40rem; }
.field label, fieldset legend { display: block; font: 500 1.02rem/1.3 var(--f-mark); margin-bottom: .35rem; }
.field .hint { display: block; font-size: .92rem; color: var(--muted); margin: -.15rem 0 .35rem; }
input[type=text], input[type=email], input[type=tel], input[type=url], select, textarea {
  width: 100%; min-height: var(--ctl-h); padding: .55rem .7rem; border: 1px solid var(--ink); border-radius: var(--radius);
  background: var(--white); color: var(--ink); font: 400 1.02rem/1.4 var(--f-text); }
textarea { min-height: 9rem; resize: vertical; }
::placeholder { color: #6B6B6B; opacity: 1; }
fieldset { border: 1px solid var(--ink); padding: .9rem 1rem 1rem; margin: 0; background: var(--white); }
.choice { display: flex; gap: .6rem; align-items: flex-start; min-height: 2rem; margin: .25rem 0; }
.choice input { width: 1.25rem; height: 1.25rem; margin: .2rem 0 0; accent-color: var(--ink); flex: none; }
.req { font-weight: 400; color: var(--muted); }

/* Platzhalter in Rechtstexten */
.ph { background: var(--light); color: var(--ink); padding: 0 .25rem; font-family: var(--f-mono); font-size: .92em; }
.draft { border: 2px solid var(--ink); background: var(--white); padding: 1rem 1.2rem; margin-bottom: 2rem; }
.prose h2 { font-size: 1.5rem; margin-top: 2.2rem; }
.prose h3 { margin-top: 1.5rem; }
.prose { max-width: 48rem; }

/* Quellen */
.sources { font-size: .94rem; }
.sources li { margin-bottom: .5rem; }

/* Fuß */
.site-foot { background: var(--ink); color: var(--light); padding: 3rem 0 2rem; }
.site-foot a { color: var(--light); }
.foot-grid { display: grid; gap: 2rem; }
@media (min-width: 48rem) { .foot-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.site-foot h2 { color: var(--light); font: 500 1rem/1.3 var(--f-mark); letter-spacing: .04em; margin-bottom: .75rem; }
.site-foot ul { list-style: none; padding: 0; margin: 0; }
.site-foot li { margin: 0; }
.site-foot li a { display: inline-flex; align-items: center; min-height: 2.25rem; }
.site-foot .mark { width: 110px; margin-bottom: .75rem; }
.foot-base { margin-top: 2.5rem; padding-top: 1rem; border-top: 1px solid var(--light); display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; justify-content: space-between; font-size: .94rem; }

@media print { .site-head .nav, .lang, .skip, .actions { display: none; } .section.dark, .site-foot { background: none; color: var(--ink); } }

/* Hilfsklassen (keine Inline-Styles wegen CSP style-src 'self') */
.m0 { margin: 0; }
.mt { margin-top: 1.25rem; }
.mt-auto { margin-top: auto; }
.mb { margin-bottom: 1.5rem; }
.ai-c { align-items: center; }
.w40 { min-width: 40rem; }
.w62 { min-width: 62rem; }
.price-lg { font: 900 2.3rem/1 var(--f-mark); margin: 1.5rem 0 .25rem; }
.qr.m0 { margin: 0; }
.cols .n { font: 400 .9rem/1 var(--f-mark); margin-bottom: .6rem; color: var(--muted); }
.hero .card .kicker { color: var(--muted); }

/* ---------------------------------------------------------------- Version 1.1: Fotos, Diagramme, Icons, Splits */
.vh { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.hp { display: none; }
.mt-lg { margin-top: 2rem; }
figure.photo { margin: 0; }
figure.photo img { width: 100%; height: auto; border: 1px solid var(--ink); background: var(--light); }
figure.photo.wide { margin-top: clamp(2rem, 5vw, 3.5rem); }
figure.photo.wide img { aspect-ratio: 16 / 9; object-fit: cover; }
figure.card-photo { background: var(--white); border: 1px solid var(--ink); display: flex; flex-direction: column; }
figure.card-photo img { border: 0; border-bottom: 1px solid var(--ink); aspect-ratio: 4 / 3; object-fit: cover; }
figure.card-photo figcaption { padding: .9rem 1rem 1rem; margin: 0; color: var(--ink); font-size: .95rem; }
.split { display: grid; gap: clamp(1.5rem, 4vw, 3rem); }
@media (min-width: 64rem) { .split { grid-template-columns: 1fr 1fr; } }
.split > * { min-width: 0; }
.hero-photo .hero-grid { align-items: center; }
.diagram-fig { margin: 0; }
svg.diagram { width: 100%; height: auto; display: block; border: 1px solid var(--ink); background: var(--white); }
.diagram-fig figcaption { margin-top: .5rem; }
.ico { display: block; width: 2rem; height: 2rem; margin-bottom: .8rem; color: var(--ink); }
.dark .ico { color: var(--light); }
.toc ul { list-style: none; padding: 0; margin: 1.5rem 0 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.toc li { margin: 0; }
.toc a { display: inline-flex; align-items: center; min-height: var(--ctl-h); padding: 0 .9rem; border: 1px solid var(--ink); background: var(--white); text-decoration: none; font: 500 1rem/1 var(--f-mark); }
.toc a:hover { background: var(--ink); color: var(--white); }
.ticks code, .card code { font-size: .88em; background: var(--paper); padding: 0 .2rem; }
.from { font-size: 1.05rem; border-left: 3px solid var(--ink); padding-left: .9rem; }
.lp .lead strong { font-weight: 600; background: var(--white); padding: 0 .1rem; box-shadow: inset 0 -2px 0 var(--ink); }
.section[id] { scroll-margin-top: 1rem; }
/* Diagramme bleiben auf schmalen Bildschirmen lesbar: waagerecht scrollbar statt winzig */
.diagram-scroll { overflow-x: auto; }
.diagram-scroll:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
@media (max-width: 47.99rem) { .diagram-scroll svg.diagram { min-width: 46rem; } }

/* v1.2: Ausblick „Demnächst“ (klar markiert, nicht nur über Farbe) */
.soon { border: 2px dashed #1A1A1A; border-radius: 12px; padding: 1.25rem 1.5rem; background: #FFFFFF; max-width: 46rem; }
.soon h3 { margin-top: .25rem; }
.soon-tag { display: inline-block; margin: 0; padding: .15rem .6rem; border-radius: 999px; background: #1A1A1A; color: #FFFFFF; font-weight: 600; font-size: .85rem; letter-spacing: .02em; }