/* Stylesheet für die Landingpages von 321-impressive.de (Existenzgründungs- und Unternehmensberatung).
   Mobile First, WCAG 2.2 AA. Kontraste berechnet mit check_contrast.py (siehe Build-Bericht). */

@layer reset, tokens, base, layout, components, utilities;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  body, h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
  img, svg { display: block; max-inline-size: 100%; block-size: auto; }
  input, button, textarea, select { font: inherit; }
}

@layer tokens {
  :root {
    --c-bg: #ffffff;
    --c-surface: #f3f5f7;
    --c-text: #18212b;
    --c-muted: #44515e;
    --c-brand: #0f4c5c;
    --c-brand-soft: #e8f1f3;
    --c-cta: #9a3412;
    --c-cta-hover: #7c2d12;
    --c-cta-text: #ffffff;
    --c-link: #1d5fa8;
    --c-note: #fff4e5;
    --c-focus: #ffd24a;
    --c-border: #6b7785;
    --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", Arial, sans-serif;
    --fs-body: clamp(1.0625rem, 1rem + 0.25vw, 1.1875rem);
    --fs-small: 0.9375rem;
    --fs-h1: clamp(1.75rem, 1.3rem + 2.2vw, 2.75rem);
    --fs-h2: clamp(1.4rem, 1.15rem + 1.2vw, 2rem);
    --fs-h3: clamp(1.15rem, 1.05rem + 0.5vw, 1.375rem);
    --lh: 1.65;
    --space-1: 0.5rem;
    --space-2: 1rem;
    --space-3: clamp(1.25rem, 1rem + 1vw, 2rem);
    --space-4: clamp(2rem, 1.5rem + 2vw, 3.5rem);
    --radius: 0.5rem;
    --measure: 70ch;
    --wrap: 72rem;
  }
}

@layer base {
  html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-block-start: var(--space-3); }
  body {
    font-family: var(--font-body);
    font-size: var(--fs-body);
    line-height: var(--lh);
    color: var(--c-text);
    background: var(--c-bg);
    overflow-wrap: break-word;
    hyphens: auto;
  }
  h1, h2, h3, h4 { line-height: 1.25; text-wrap: balance; hyphens: auto; overflow-wrap: break-word; }
  h1 { font-size: var(--fs-h1); }
  h2 { font-size: var(--fs-h2); margin-block-end: var(--space-2); }
  h3 { font-size: var(--fs-h3); margin-block: var(--space-3) var(--space-1); }
  p, ul, ol, dl { margin-block-end: var(--space-2); max-inline-size: var(--measure); }
  li + li { margin-block-start: 0.35rem; }
  a { color: var(--c-link); text-decoration-thickness: 0.08em; text-underline-offset: 0.18em; }
  a:hover { text-decoration-thickness: 0.16em; }
  :focus-visible {
    outline: 3px solid var(--c-text);
    outline-offset: 2px;
    box-shadow: 0 0 0 6px var(--c-focus);
  }
  table { border-collapse: collapse; inline-size: 100%; }
  th, td { text-align: start; vertical-align: top; padding: 0.6rem 0.75rem; border-block-end: 1px solid var(--c-border); }
  caption { text-align: start; font-weight: 700; padding-block-end: var(--space-1); }
}

@layer layout {
  .wrap { inline-size: min(100% - 2rem, var(--wrap)); margin-inline: auto; }
  .skip-link {
    position: absolute; inset-inline-start: 1rem; inset-block-start: -10rem;
    background: var(--c-text); color: #ffffff; padding: 0.75rem 1rem; border-radius: var(--radius); z-index: 10;
  }
  .skip-link:focus { inset-block-start: 1rem; }
  .site-header { border-block-end: 1px solid var(--c-border); background: var(--c-bg); }
  .site-header .wrap { display: flex; flex-wrap: wrap; gap: var(--space-1) var(--space-3); align-items: center; justify-content: space-between; padding-block: var(--space-2); }
  .brand { display: inline-flex; align-items: center; gap: 0.75rem; max-inline-size: 100%; font-weight: 700; color: var(--c-text); text-decoration: none; line-height: 1.3; }
  .brand-logo { inline-size: clamp(3.25rem, 2.75rem + 2vw, 4.75rem); block-size: auto; border-radius: 50%; flex: none; }
  .brand-text { min-inline-size: 0; hyphens: auto; overflow-wrap: break-word; }
  .brand-text span { display: block; font-weight: 400; font-size: var(--fs-small); color: var(--c-muted); }
  .header-nav ul { display: flex; flex-wrap: wrap; gap: 0.5rem; list-style: none; padding: 0; margin: 0; }
  .header-nav li + li { margin-block-start: 0; }
  .nav-btn {
    display: inline-flex; align-items: center; justify-content: center; min-block-size: 44px; padding: 0.4rem 1rem;
    border: 2px solid var(--c-brand); border-radius: var(--radius); background: var(--c-bg); color: var(--c-brand);
    font-weight: 700; text-decoration: none; line-height: 1.25; text-align: center;
  }
  .nav-btn:hover { background: var(--c-brand-soft); text-decoration: underline; text-decoration-thickness: 0.08em; }
  .nav-btn[aria-current="page"] { background: var(--c-brand); color: #ffffff; }
  .nav-btn[aria-current="page"]:hover { background: var(--c-brand); }
  .breadcrumb ol { display: flex; flex-wrap: wrap; gap: 0.25rem 0.5rem; list-style: none; padding: 0; margin: 0; font-size: var(--fs-small); }
  .breadcrumb li + li { margin-block-start: 0; }
  .breadcrumb li + li::before { content: "›"; margin-inline-end: 0.5rem; color: var(--c-muted); }
  .breadcrumb { padding-block: var(--space-1); }
  .breadcrumb a, .site-footer li a { display: inline-block; padding-block: 0.25rem; }
  main section { padding-block: var(--space-4); }
  main section:nth-of-type(even) { background: var(--c-surface); }
  .grid-2 { display: grid; gap: var(--space-3); }
  .cards { display: grid; gap: var(--space-2); grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); padding: 0; list-style: none; max-inline-size: none; }
  .cards > li { margin: 0; }
  .cards-2 { grid-template-columns: minmax(0, 1fr); max-inline-size: 60rem; }
  @media (min-width: 40rem) { .cards-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  .site-footer { background: var(--c-text); color: #ffffff; padding-block: var(--space-4); }
  .site-footer a { color: #ffffff; }
  .site-footer :focus-visible { outline-color: #ffffff; box-shadow: 0 0 0 6px var(--c-focus); }
  .site-footer .wrap { display: grid; gap: var(--space-3); }
  .site-footer ul { list-style: none; padding: 0; }
  .site-footer h2 { font-size: var(--fs-h3); }
  @media (min-width: 52rem) {
    .grid-2 { grid-template-columns: 3fr 2fr; align-items: start; }
    .site-footer .wrap { grid-template-columns: repeat(3, 1fr); }
  }
}

@layer components {
  .hero { background: var(--c-brand); color: #ffffff; }
  .hero a:not(.btn) { color: #ffffff; }
  .hero :focus-visible { outline-color: #ffffff; }
  .eyebrow { font-size: var(--fs-small); font-weight: 700; letter-spacing: 0.02em; margin-block-end: var(--space-1); }
  .lead { font-size: clamp(1.125rem, 1.05rem + 0.4vw, 1.3rem); margin-block: var(--space-2); }
  .cta-row { display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; margin-block: var(--space-3) var(--space-1); }
  .btn {
    display: inline-flex; align-items: center; justify-content: center; min-block-size: 48px; padding: 0.75rem 1.4rem;
    border-radius: var(--radius); font-weight: 700; text-decoration: none; border: 2px solid transparent; cursor: pointer; text-align: center;
  }
  .btn-cta { background: var(--c-cta); color: var(--c-cta-text); }
  .btn-cta:hover { background: var(--c-cta-hover); }
  .btn-ghost { border-color: currentColor; color: inherit; background: transparent; }
  .microcopy { font-size: var(--fs-small); }
  .fact-strip { display: grid; gap: var(--space-1) var(--space-3); grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); margin-block-start: var(--space-3); padding: 0; max-inline-size: none; }
  .fact-strip div { border-inline-start: 3px solid #ffffff; padding-inline-start: 0.75rem; }
  .fact-strip dt { font-size: var(--fs-small); }
  .fact-strip dd { font-weight: 700; }
  .box { background: var(--c-bg); border: 1px solid var(--c-border); border-radius: var(--radius); padding: clamp(1.25rem, 1rem + 1vw, 2rem); margin-block: var(--space-3); max-inline-size: 52rem; }
  .box-note { background: var(--c-note); border-inline-start: 6px solid var(--c-cta); }
  .box-easy { background: var(--c-brand-soft); border-inline-start: 6px solid var(--c-brand); }
  .box-easy p, .box-easy li { font-size: 1.12em; line-height: 1.8; }
  .box > :last-child { margin-block-end: 0; }
  .box h3:first-child, .box h2:first-child { margin-block-start: 0; }
  .card { background: var(--c-bg); border: 1px solid var(--c-border); border-radius: var(--radius); padding: clamp(1.25rem, 1rem + 1vw, 2rem); block-size: 100%; }
  .card h3 { margin-block-start: 0; }
  .card > :last-child { margin-block-end: 0; }
  .steps { counter-reset: step; list-style: none; padding: 0; }
  .steps > li { counter-increment: step; position: relative; padding-inline-start: 3.25rem; margin-block-end: var(--space-2); }
  .steps > li::before {
    content: counter(step); position: absolute; inset-inline-start: 0; inset-block-start: 0;
    inline-size: 2.25rem; block-size: 2.25rem; border-radius: 50%; display: grid; place-items: center;
    background: var(--c-brand); color: #ffffff; font-weight: 700;
  }
  .checklist { list-style: none; padding: 0; }
  .checklist li { padding-inline-start: 2rem; position: relative; }
  .checklist li::before { content: "☐"; position: absolute; inset-inline-start: 0; font-size: 1.2em; line-height: 1.4; color: var(--c-brand); }
  .source { font-size: var(--fs-small); color: var(--c-muted); }
  .table-scroll { overflow-x: auto; max-inline-size: 100%; }
  .table-scroll:focus-visible { box-shadow: 0 0 0 6px var(--c-focus); }
  details.faq { border-block-end: 1px solid var(--c-border); padding-block: var(--space-1); max-inline-size: var(--measure); }
  details.faq summary { cursor: pointer; font-weight: 700; padding-block: 0.5rem; min-block-size: 44px; }
  details.faq[open] summary { margin-block-end: var(--space-1); }
  .figure-flow { margin-block: var(--space-3); max-inline-size: 46rem; }
  .figure-flow svg { inline-size: 100%; block-size: auto; }
  .figure-flow figcaption { font-size: var(--fs-small); color: var(--c-muted); margin-block-start: var(--space-1); }
  .form { display: grid; gap: var(--space-2); max-inline-size: 40rem; }
  .field { display: grid; gap: 0.35rem; border: 0; padding: 0; margin: 0; }
  .field label, .field legend { font-weight: 700; }
  .field .hint { font-size: var(--fs-small); color: var(--c-muted); }
  .field input, .field select, .field textarea {
    inline-size: 100%; min-block-size: 48px; padding: 0.6rem 0.75rem; border: 2px solid var(--c-border); border-radius: var(--radius); background: #ffffff; color: var(--c-text);
  }
  .field textarea { min-block-size: 9rem; resize: vertical; }
  .check { display: grid; grid-template-columns: auto 1fr; gap: 0.75rem; align-items: start; }
  .check input { inline-size: 1.5rem; block-size: 1.5rem; margin-block-start: 0.2rem; }
  .hp { position: absolute; inline-size: 1px; block-size: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .tag { display: inline-block; font-size: var(--fs-small); font-weight: 700; color: var(--c-brand); background: var(--c-brand-soft); border-radius: 999px; padding: 0.1rem 0.7rem; }
  .city-list { columns: 16rem; padding-inline-start: 1.25rem; max-inline-size: none; }

  /* Porträt und Siegel */
  .about-person { display: grid; gap: var(--space-2) var(--space-3); grid-template-columns: minmax(0, 1fr); }
  .about-person > * { min-inline-size: 0; }
  .portrait { margin: 0; max-inline-size: 14rem; }
  .portrait img { inline-size: 100%; block-size: auto; border-radius: 0.75rem; border: 1px solid var(--c-border); background: #ffffff; }
  .portrait figcaption { font-size: var(--fs-small); color: var(--c-muted); margin-block-start: var(--space-1); }
  @media (min-width: 40rem) { .about-person { grid-template-columns: 12rem minmax(0, 1fr); align-items: start; } }
  .footer-seal { margin: var(--space-2) 0 0; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--space-2); align-items: start; max-inline-size: 26rem; }
  .footer-seal img { inline-size: 5.5rem; block-size: auto; border-radius: 0.25rem; }
  .footer-seal figcaption { font-size: var(--fs-small); }

  /* Hero mit Bild */
  .hero-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-3); align-items: center; }
  .hero-grid > * { min-inline-size: 0; }
  .hero-media { margin: 0; }
  .hero-media img { inline-size: 100%; block-size: auto; border-radius: 0.75rem; border: 3px solid #ffffff; }
  .hero-media figcaption { font-size: var(--fs-small); margin-block-start: var(--space-1); }
  @media (min-width: 60rem) { .hero-grid { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); } }

  /* Erklärgrafik: Ablauf. Text bleibt HTML, Symbole sind dekorativ. */
  .flow { margin-block: var(--space-3); max-inline-size: none; }
  .flow.n4 { --steps: 4; } .flow.n5 { --steps: 5; }
  .flow-title { font-weight: 700; font-size: var(--fs-h3); margin-block-end: var(--space-2); }
  .flow ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 1.25rem; max-inline-size: none; }
  .flow li {
    position: relative; margin: 0; min-inline-size: 0; display: grid; grid-template-columns: 3rem 1fr; gap: 0.75rem; align-items: start;
    background: var(--c-bg); border: 2px solid var(--c-brand); border-radius: 0.75rem; padding: clamp(1rem, 0.8rem + 0.8vw, 1.25rem);
  }
  .flow li:not(:last-child)::after {
    content: ""; position: absolute; inset-inline-start: calc(clamp(1rem, 0.8rem + 0.8vw, 1.25rem) + 1.1rem); inset-block-end: -1.2rem;
    border-inline: 0.45rem solid transparent; border-block-start: 0.7rem solid var(--c-brand);
  }
  .flow-icon { inline-size: 3rem; block-size: 3rem; border-radius: 50%; background: var(--c-brand); color: #ffffff; display: grid; place-items: center; }
  .flow-icon svg { inline-size: 1.6rem; block-size: 1.6rem; }
  .flow-step { display: block; font-size: var(--fs-small); font-weight: 700; color: var(--c-brand); }
  .flow-label { display: block; font-weight: 700; line-height: 1.35; }
  .flow-detail { display: block; font-size: var(--fs-small); color: var(--c-muted); margin-block-start: 0.25rem; overflow-wrap: anywhere; }
  .flow figcaption, .compare figcaption { font-size: var(--fs-small); color: var(--c-muted); margin-block-start: var(--space-2); max-inline-size: var(--measure); }
  @media (min-width: 62rem) {
    .flow ol { grid-template-columns: repeat(var(--steps, 5), minmax(0, 1fr)); gap: 1.5rem; }
    .flow li { grid-template-columns: 1fr; justify-items: center; align-content: start; text-align: center; }
    .flow li:not(:last-child)::after {
      inset-inline-start: auto; inset-inline-end: -1.2rem; inset-block-start: 50%; inset-block-end: auto; transform: translateY(-50%);
      border-block: 0.45rem solid transparent; border-inline-start: 0.7rem solid var(--c-brand); border-inline-end: 0;
    }
  }

  /* Erklärgrafik: Vergleich zweier Modelle */
  .compare { margin-block: var(--space-3); max-inline-size: 60rem; }
  .compare-grid { display: grid; gap: var(--space-2); }
  .compare-col { background: var(--c-bg); border: 2px solid var(--c-border); border-radius: 0.75rem; padding: clamp(1.25rem, 1rem + 1vw, 2rem); min-inline-size: 0; }
  .compare-col.is-focus { border-color: var(--c-brand); border-width: 3px; }
  .compare-col h3 { margin-block-start: 0; }
  .compare-col ul { list-style: none; padding: 0; margin: 0; }
  .compare-col li + li { margin-block-start: var(--space-2); }
  .meter-label { display: flex; justify-content: space-between; gap: 0.5rem; flex-wrap: wrap; font-size: var(--fs-small); font-weight: 700; }
  .meter { display: block; block-size: 0.9rem; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 999px; overflow: hidden; margin-block-start: 0.35rem; }
  .meter > span { display: block; block-size: 100%; background: var(--c-brand); }
  .meter > .lvl-1 { inline-size: 20%; } .meter > .lvl-2 { inline-size: 40%; } .meter > .lvl-3 { inline-size: 60%; }
  .meter > .lvl-4 { inline-size: 80%; } .meter > .lvl-5 { inline-size: 100%; }
  .pillars { display: flex; align-items: start; gap: 0.5rem; margin-block: var(--space-2); }
  .pillar { flex: 1 1 0; min-inline-size: 0; display: grid; grid-template-rows: 7rem auto; }
  .pillar .bar { display: block; align-self: end; background: var(--c-brand); border-radius: 0.35rem 0.35rem 0 0; border-block-end: 4px solid var(--c-text); }
  .pillar-label { display: block; font-size: var(--fs-small); font-weight: 700; text-align: center; padding-block-start: 0.35rem; hyphens: auto; overflow-wrap: anywhere; }
  .pillar:has(.p-100) { flex: 0 1 7rem; }
  .bar.p-100 { block-size: 7rem; } .bar.p-85 { block-size: 6rem; } .bar.p-70 { block-size: 5rem; }
  .bar.p-60 { block-size: 4.25rem; } .bar.p-50 { block-size: 3.5rem; }
  @media (min-width: 48rem) { .compare-grid { grid-template-columns: 1fr 1fr; } }
}

@layer utilities {
  .visually-hidden { position: absolute; inline-size: 1px; block-size: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  @media (prefers-reduced-motion: no-preference) {
    html { scroll-behavior: smooth; }
  }
  @media (forced-colors: active) {
    .btn, .nav-btn, .box, .card, .field input, .field select, .field textarea { border: 2px solid CanvasText; }
    .nav-btn[aria-current="page"] { forced-color-adjust: none; background: Highlight; color: HighlightText; border-color: Highlight; }
    .steps > li::before { border: 2px solid CanvasText; }
    .flow-icon, .meter > span, .pillar .bar { forced-color-adjust: none; background: CanvasText; color: Canvas; }
    :focus-visible { outline: 3px solid Highlight; box-shadow: none; }
  }
  @media print {
    .header-nav, .cta-row, .form, .skip-link, .site-footer { display: none; }
    .hero { background: none; color: #000000; }
    main section { padding-block: 1rem; background: none; }
  }
}