@layer reset, base, components, utilities;

/* ============================================================
   Weinbau Karl Frauenhofer — schlichte Kundeninformation
   Design-Tokens aus dem Neustifter-Stil-Klon (Gold / Espresso / Creme).
   Kein JavaScript, keine Bilder, keine externen Abhängigkeiten.
   ============================================================ */
:root {
  color-scheme: light dark;

  /* Farben (Neustifter-Palette) */
  --color-accent: oklch(0.685 0.055 68);          /* Gold */
  --color-accent-light: oklch(0.835 0.055 68);    /* helles Gold auf dunklen Flächen */
  --color-accent-dark: oklch(0.52 0.06 62);       /* AA-taugliches Gold für kleinen Text */

  --color-text: oklch(0.29 0.012 75);             /* Espresso */
  --color-text-muted: oklch(0.48 0.012 75);
  --color-background: oklch(0.955 0.018 95);      /* Creme */

  --color-surface-dark: oklch(0.34 0.045 145);    /* Rebgrün */
  --color-hero-veil: oklch(0.30 0.05 145 / 0.55);
  --color-hero-veil-deep: oklch(0.22 0.05 145 / 0.82);
  --color-on-dark: oklch(1 0 0);
  --color-on-dark-muted: oklch(1 0 0 / 0.78);
  --color-border: oklch(0.685 0.055 68 / 0.3);
  --color-border-on-dark: oklch(1 0 0 / 0.15);
  --color-tint: color-mix(in oklch, var(--color-accent) 12%, var(--color-background));
  --color-button-text: oklch(0.2 0.02 60);

  --spacing-unit: 8px;

  --font-family-base: "Poppins", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-family-display: var(--font-family-base);
  --font-family-script: "Segoe Script", "Brush Script MT", cursive;   /* Wortmarke */
  --font-size-base: 1rem;
  --line-height-base: 1.6;

  --content-max: 1232px;
  --gutter: calc(var(--spacing-unit) * 3);

  --radius: calc(var(--spacing-unit) * 0.5);
  --transition: 0.3s ease-in-out;
}

/* -------------------------------------------------------- reset */
@layer reset {
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { -webkit-text-size-adjust: 100%; }
  body {
    font-family: var(--font-family-base);
    line-height: var(--line-height-base);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
  }
  ul, ol { list-style: none; }
  a { color: inherit; text-decoration: none; }
  address { font-style: normal; }
}

/* -------------------------------------------------------- base */
@layer base {
  h1, h2, h3 {
    font-family: var(--font-family-display);
    font-weight: 500;
    line-height: 1.2;
  }
  @supports (text-wrap: balance) {
    h1, h2, h3 { text-wrap: balance; }
  }
  h1 { font-size: clamp(2.25rem, 5.5vw, 3.5rem); }
  h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); color: var(--color-accent-dark); }
  h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }
  p { max-inline-size: 68ch; }

  .prose a, .text-link {
    color: var(--color-accent-dark);
    font-weight: 700;
    transition: color var(--transition);
  }
  .prose a:hover, .text-link:hover { color: var(--color-accent); }

  :focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }
}

/* -------------------------------------------------------- components */
@layer components {
  .container {
    inline-size: min(100% - 2 * var(--gutter), var(--content-max));
    margin-inline: auto;
  }
  .container--narrow { --content-max: 820px; }

  .eyebrow {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent-dark);
  }
  .section--dark .eyebrow, .hero .eyebrow, .panel .eyebrow { color: var(--color-accent-light); }

  /* Sprunglink für Tastaturnutzer */
  .skip-link {
    position: absolute;
    inset-block-start: 0;
    inset-inline-start: 0;
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 2);
    background-color: var(--color-surface-dark);
    color: var(--color-on-dark);
    font-weight: 700;
    z-index: 20;
    transform: translateY(-120%);
    transition: transform var(--transition);
  }
  .skip-link:focus-visible { transform: translateY(0); }

  /* Header + Nav */
  .site-header {
    position: sticky;
    inset-block-start: 0;
    z-index: 10;
    background-color: var(--color-background);
    border-block-end: 1px solid var(--color-border);
  }
  @supports (backdrop-filter: blur(1px)) {
    .site-header {
      background-color: color-mix(in oklch, var(--color-background) 88%, transparent);
      backdrop-filter: blur(6px);
    }
  }
  .site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: calc(var(--spacing-unit) * 2);
    padding-block: calc(var(--spacing-unit) * 2);
  }
  .wordmark {
    font-family: var(--font-family-script);
    font-size: 1.6rem;
    line-height: 1.05;
    color: var(--color-text);
  }
  .wordmark span {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    font-family: var(--font-family-base);
    color: var(--color-accent-dark);
  }
  .site-nav ul { display: flex; flex-wrap: wrap; gap: calc(var(--spacing-unit) * 3); }
  .site-nav a {
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.03em;
    color: var(--color-text);
    transition: color var(--transition);
  }
  .site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--color-accent-dark); }

  /* Buttons */
  .button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-unit);
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 3);
    background-color: var(--color-accent);
    color: var(--color-button-text);
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--radius);
    transition: background-color var(--transition), color var(--transition), border-color var(--transition);
  }
  .button:hover { background-color: var(--color-accent-dark); color: var(--color-on-dark); }
  .button--ghost { background-color: transparent; color: inherit; border-color: currentColor; }
  .button--ghost:hover { background-color: var(--color-accent); color: var(--color-button-text); border-color: transparent; }
  .actions { display: flex; flex-wrap: wrap; gap: calc(var(--spacing-unit) * 2); }

  /* Hero: Weinreben hinter einem grünen Schleier. Drei WebP-Größen: Hochformat fürs Handy,
     1600 und 2400 Pixel breit ab Tablet. Die Vorladung steht in index.html mit denselben Grenzen. */
  .hero {
    display: grid;
    align-content: center;
    min-block-size: min(62vh, 560px);
    padding-block: calc(var(--spacing-unit) * 8);
    background-color: var(--color-surface-dark);
    background-image:
      linear-gradient(180deg, var(--color-hero-veil), var(--color-hero-veil-deep)),
      url("images/hero-weinreben-mobil.webp");
    background-size: cover;
    background-position: center;
    color: var(--color-on-dark);
  }
  .hero .container { display: grid; gap: calc(var(--spacing-unit) * 2.5); justify-items: start; }
  .hero h1 { color: var(--color-on-dark); }
  .hero__lead { font-size: 1.125rem; color: var(--color-on-dark-muted); }
  .hero__date {
    font-size: clamp(1.15rem, 2.5vw, 1.5rem);
    font-weight: 500;
    color: var(--color-accent-light);
  }

  /* Abschnitte */
  .section { padding-block: calc(var(--spacing-unit) * 9); }
  .section--tight { padding-block: calc(var(--spacing-unit) * 6); }
  .section__head {
    display: grid;
    gap: calc(var(--spacing-unit) * 1.5);
    margin-block-end: calc(var(--spacing-unit) * 5);
  }
  .section__head--center { text-align: center; justify-items: center; }
  .section--dark { background-color: var(--color-surface-dark); color: var(--color-on-dark); }
  .section--dark h2 { color: var(--color-accent-light); }
  @supports (content-visibility: auto) {
    .section--lazy { content-visibility: auto; contain-intrinsic-block-size: auto 600px; }
  }

  .prose { display: grid; gap: calc(var(--spacing-unit) * 2.5); }
  .prose section { display: grid; gap: calc(var(--spacing-unit) * 1.5); margin-block-start: calc(var(--spacing-unit) * 2); }
  .prose section h2 { font-size: clamp(1.35rem, 2.5vw, 1.75rem); }

  .two-columns { display: grid; gap: calc(var(--spacing-unit) * 6); grid-template-columns: 1fr; }

  /* Termin & Fakten */
  .terms { display: grid; gap: calc(var(--spacing-unit) * 1.5); }
  .term {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-unit) calc(var(--spacing-unit) * 3);
    padding-block: calc(var(--spacing-unit) * 1.5);
    border-block-end: 1px solid var(--color-border);
  }
  .term strong { color: var(--color-accent-dark); min-inline-size: 14ch; }
  .section--dark .term strong { color: var(--color-accent-light); }
  .section--dark .term { border-color: var(--color-border-on-dark); }

  .facts { display: flex; flex-wrap: wrap; gap: calc(var(--spacing-unit) * 2); }
  .fact {
    padding: var(--spacing-unit) calc(var(--spacing-unit) * 2);
    background-color: var(--color-tint);
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
  }

  .steps { display: grid; gap: calc(var(--spacing-unit) * 1.5); counter-reset: step; }
  .steps li {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: calc(var(--spacing-unit) * 2);
    align-items: baseline;
  }
  .steps li::before {
    counter-increment: step;
    content: counter(step);
    font-weight: 700;
    color: var(--color-accent-light);
    font-variant-numeric: tabular-nums;
  }

  /* Dunkles Panel (Webshop) */
  .panel {
    display: grid;
    gap: calc(var(--spacing-unit) * 2);
    justify-items: start;
    padding: calc(var(--spacing-unit) * 5);
    background-color: var(--color-surface-dark);
    color: var(--color-on-dark);
    border-radius: var(--radius);
  }
  .panel h2 { color: var(--color-on-dark); }

  /* Speisekarte */
  .menu { padding-block: calc(var(--spacing-unit) * 6); border-block-start: 1px solid var(--color-border); }
  .menu:first-of-type { border-block-start: 0; }
  .menu__groups { display: grid; gap: calc(var(--spacing-unit) * 5); }
  .menu__group { display: grid; gap: calc(var(--spacing-unit) * 2); }
  .menu__group h3 {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent-dark);
  }
  .menu__list { display: grid; gap: calc(var(--spacing-unit) * 1.5); }
  .menu__item {
    display: grid;
    gap: calc(var(--spacing-unit) * 0.25);
    padding-block: calc(var(--spacing-unit) * 1.25);
    border-block-end: 1px solid var(--color-border);
    break-inside: avoid;
  }
  .menu__name { font-weight: 500; }
  .menu__note { font-size: 0.9rem; color: var(--color-text-muted); }
  .menu__measure {
    display: inline-block;
    min-inline-size: 5ch;
    margin-inline-end: var(--spacing-unit);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    font-variant-numeric: tabular-nums;
  }
  .menu__aside {
    padding: calc(var(--spacing-unit) * 3);
    border-inline-start: 3px solid var(--color-accent);
    background-color: var(--color-tint);
    border-radius: 0 var(--radius) var(--radius) 0;
  }
  .menu__aside p { color: var(--color-text-muted); font-size: 0.95rem; }
  .menu__aside strong { color: var(--color-text); font-size: 1.05rem; }

  /* Noch nicht verfügbar: ausgegraut, Hinweis bei Hover und Fokus */
  .soon {
    position: relative;
    color: var(--color-text-muted);
    cursor: not-allowed;
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.03em;
  }
  .soon::after {
    content: attr(data-hint);
    position: absolute;
    inset-block-start: calc(100% + 6px);
    inset-inline-start: 50%;
    transform: translateX(-50%);
    padding: calc(var(--spacing-unit) * 0.75) calc(var(--spacing-unit) * 1.5);
    background-color: var(--color-surface-dark);
    color: var(--color-on-dark);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0;
    white-space: nowrap;
    border-radius: var(--radius);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
  }
  .soon:hover::after, .soon:focus-visible::after { opacity: 1; }
  .site-nav li:last-child .soon::after { inset-inline-start: auto; inset-inline-end: 0; transform: none; }
  .site-footer .soon { color: var(--color-on-dark-muted); }
  .site-footer .soon::after { background-color: var(--color-background); color: var(--color-text); }
  .button--soon,
  .button--soon:hover {
    background-color: transparent;
    color: var(--color-on-dark-muted);
    border-color: var(--color-border-on-dark);
    cursor: not-allowed;
  }

  .notice { color: var(--color-text-muted); font-size: 0.95rem; }
  .notice--on-dark { color: var(--color-on-dark-muted); font-size: 0.8125rem; }

  /* Karte (Google Maps) */
  .map { display: grid; gap: var(--spacing-unit); margin-block-start: calc(var(--spacing-unit) * 6); }
  .map__frame {
    inline-size: 100%;
    aspect-ratio: 16 / 7;
    min-block-size: 280px;
    border: 0;
    border-radius: var(--radius);
    background-color: var(--color-on-dark-muted);
  }
  mark { background-color: var(--color-tint); color: var(--color-accent-dark); padding-inline: 0.2em; font-weight: 600; }

  /* Footer */
  .site-footer {
    background-color: var(--color-surface-dark);
    color: var(--color-on-dark);
    padding-block: calc(var(--spacing-unit) * 8) calc(var(--spacing-unit) * 4);
    margin-block-start: calc(var(--spacing-unit) * 6);
  }
  .footer-grid { display: grid; gap: calc(var(--spacing-unit) * 5); grid-template-columns: 1fr; }
  .site-footer h2 { font-size: 1.15rem; color: var(--color-accent-light); margin-block-end: calc(var(--spacing-unit) * 1.5); }
  .site-footer a { color: var(--color-accent-light); font-weight: 700; transition: color var(--transition); }
  .site-footer a:hover { color: var(--color-on-dark); }
  .footer-bottom {
    max-inline-size: none;
    margin-block-start: calc(var(--spacing-unit) * 6);
    padding-block-start: calc(var(--spacing-unit) * 3);
    border-block-start: 1px solid var(--color-border-on-dark);
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-on-dark-muted);
  }
}

/* -------------------------------------------------------- responsive */
@media (min-width: 700px) {
  .hero {
    background-image:
      linear-gradient(180deg, var(--color-hero-veil), var(--color-hero-veil-deep)),
      url("images/hero-weinreben-1600.webp");
    background-position: center 65%;
  }
}
@media (min-width: 1400px) {
  .hero {
    background-image:
      linear-gradient(180deg, var(--color-hero-veil), var(--color-hero-veil-deep)),
      url("images/hero-weinreben-2400.webp");
  }
}
@media (min-width: 768px) {
  .two-columns { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
  .menu__list--columns { columns: 2; column-gap: calc(var(--spacing-unit) * 6); display: block; }
  .menu__list--columns .menu__item { margin-block-end: calc(var(--spacing-unit) * 1.5); }
}

/* -------------------------------------------------------- dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: oklch(0.22 0.02 55);
    --color-text: oklch(0.92 0.02 90);
    --color-text-muted: oklch(0.75 0.02 90);
    --color-surface-dark: oklch(0.21 0.04 145);
    --color-accent-dark: oklch(0.78 0.06 68);
    --color-border: oklch(0.685 0.055 68 / 0.4);
  }
}

/* -------------------------------------------------------- motion */
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
  @view-transition { navigation: auto; }
  .site-header { view-transition-name: site-header; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* -------------------------------------------------------- print (Speisekarte) */
@media print {
  :root {
    --color-background: #fff;
    --color-text: #1a1e17;
    --color-text-muted: #4c5245;
    --color-accent-dark: #6b5537;
    --color-tint: #fff;
    --color-border: #c6c8b9;
  }
  .skip-link, .site-nav, .site-footer, .actions { display: none; }
  .site-header { position: static; border: 0; }
  .hero { background-image: none; }
  .map { display: none; }
  .menu { padding-block: 1.2cm; break-inside: avoid; }
  .menu__list--columns { columns: 2; column-gap: 1.2cm; display: block; }
  .menu__aside { border-inline-start-color: #6b5537; }
}