/* 05 dark-lab — the deepest slice: the original's #092C5F pushed down to a
   near-black navy, with a cold cyan-blue accent. Bordered panels at 2px, a
   narrow rail, blurbs as a bordered data grid. Home: dark. */
@layer tokens, base, layout, components;

@layer tokens {
  :root {
    color-scheme: light dark;

    --base:   light-dark(#f1f4f8, #070c12);
    --panel:  light-dark(#ffffff, #0e1620);
    --ink:    light-dark(#101923, #dbe4ef);
    --muted:  light-dark(#55647a, #8797ac);
    --line:   light-dark(#d3dbe5, #1e2937);
    /* Bright cyan on white fails contrast at once and reads as an error
       state, so the light form gets its own darker value. */
    --accent: light-dark(#0a5f86, #4cc9f0);
    --on-accent: light-dark(#ffffff, #04121a);
    --grid-line: light-dark(rgb(20 40 70 / 0.05), rgb(90 170 210 / 0.05));

    --radius: 2px;
    --mono: ui-monospace, "SF Mono", "DejaVu Sans Mono", Menlo, Consolas, monospace;
    --sans: "Roboto Condensed", "Arial Narrow", "Helvetica Neue", system-ui, sans-serif;
  }
  :root:has(#light:target) { color-scheme: light; }
  :root:has(#dark:target)  { color-scheme: dark; }
}

@layer base {
  * { box-sizing: border-box; }
  body {
    margin: 0;
    background: var(--base);
    color: var(--ink);
    font: 0.9375rem/1.6 var(--mono);
    background-image:
      linear-gradient(var(--grid-line) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 32px 32px, 32px 32px;
  }
  h1, h2, h3 { margin: 0; font-family: var(--sans); font-weight: 700; }
  p { margin: 0; }
  dl, dd { margin: 0; }
  figure { margin: 0; }
  img { display: block; max-inline-size: 100%; block-size: auto; }
  a { color: var(--accent); }
  a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition-duration: 0.01ms !important; }
  }
}

@layer layout {
  .shell {
    display: grid;
    grid-template-columns: minmax(13rem, 17rem) minmax(0, 1fr);
    align-items: start;
    max-inline-size: 1500px;
    margin-inline: auto;
    min-block-size: 100vh;
  }
  main { padding: clamp(1.5rem, 3vw, 3rem) clamp(1rem, 3vw, 3rem) 0; }
  @media (max-width: 880px) {
    .shell { grid-template-columns: 1fr; }
    .rail { position: static !important; border-inline-end: 0 !important;
            border-block-end: 1px solid var(--line); }
  }
}

@layer components {
  .rail {
    position: sticky;
    top: 0;
    padding: clamp(1.25rem, 2.5vw, 2rem) 1.25rem;
    border-inline-end: 1px solid var(--line);
    background: var(--panel);
    display: grid;
    gap: 1.5rem;
    align-content: start;
  }
  .brand { display: flex; align-items: start; gap: 0.75rem; text-decoration: none;
           color: var(--ink); }
  .brand img { inline-size: 2.5rem; }
  .brand-text { display: grid; gap: 0.3rem; }
  .name { font-family: var(--sans); font-size: 1rem; font-weight: 700;
          line-height: 1.1; text-transform: uppercase; letter-spacing: 0.03em; }
  .tag { font-size: 0.6875rem; color: var(--muted); }
  .nav, .sections { display: grid; gap: 0.375rem; font-size: 0.8125rem; }
  .nav a, .sections a { color: var(--muted); text-decoration: none;
                        padding-inline-start: 0.75rem;
                        border-inline-start: 2px solid transparent; }
  .nav a:hover, .sections a:hover { color: var(--ink);
                                    border-inline-start-color: var(--accent); }
  .sections { border-block-start: 1px solid var(--line); padding-block-start: 1rem;
              font-size: 0.75rem; }
  .schemes { display: flex; gap: 0.5rem; font-size: 0.6875rem;
             text-transform: uppercase; letter-spacing: 0.12em; }
  .schemes a { color: var(--muted); text-decoration: none; border: 1px solid var(--line);
               border-radius: var(--radius); padding: 0.25rem 0.5rem; }
  .schemes a:hover { color: var(--accent); border-color: var(--accent); }

  .hero { padding-block: clamp(1rem, 3vw, 2.5rem) 0; }
  .eyebrow { font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.18em;
             color: var(--accent); margin-block-end: 1rem; }
  .hero h1 {
    font-size: clamp(2rem, 5.5vw, 4rem);
    line-height: 1.02;
    text-transform: uppercase;
    max-inline-size: 20ch;
    text-wrap: balance;
  }
  .lede { margin-block-start: 1.25rem; max-inline-size: 56ch; color: var(--muted); }
  .actions { display: flex; flex-wrap: wrap; gap: 0.625rem; margin-block-start: 1.5rem; }
  .btn {
    display: inline-block;
    padding: 0.55rem 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--panel);
    color: var(--ink);
    font: 0.8125rem/1 var(--mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    text-decoration: none;
  }
  .btn:hover { border-color: var(--accent); color: var(--accent); }
  .btn-primary { background: var(--accent); border-color: var(--accent);
                 color: var(--on-accent); }
  .btn-primary:hover { background: transparent; color: var(--accent); }
  .hero-figure { margin-block-start: 2rem; border: 1px solid var(--line); }
  .hero-figure img {
    inline-size: 100%;
    aspect-ratio: 24 / 7;
    object-fit: cover;
    object-position: 50% 58%;
    /* Photographs are pulled toward the instrument palette rather than left
       to fight it — desaturated, with the accent hue biased back in. */
    filter: grayscale(0.72) contrast(1.06) brightness(light-dark(1, 0.82));
  }

  .angebot, .kontakt { padding-block: clamp(2.5rem, 5vw, 4rem) 0; }
  h2 { font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.14em;
       margin-block-end: 1rem; display: flex; gap: 0.75rem; align-items: baseline; }
  .tag-num { font-family: var(--mono); font-size: 0.6875rem; color: var(--on-accent);
             background: var(--accent); padding: 0.1rem 0.4rem;
             border-radius: var(--radius); }

  /* Visible cell borders — a bench readout, not a card grid. */
  .grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border: 1px solid var(--line);
    background: var(--panel);
  }
  .grid article {
    padding: 1rem 1.125rem 1.25rem;
    border-inline-end: 1px solid var(--line);
    border-block-end: 1px solid var(--line);
  }
  .grid article:nth-child(3n) { border-inline-end: 0; }
  .grid figure { margin-block-end: 0.875rem; border: 1px solid var(--line); }
  .grid figure img {
    inline-size: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    filter: grayscale(0.72) contrast(1.06) brightness(light-dark(1, 0.82));
  }
  .grid h3 { font-size: 0.8125rem; text-transform: uppercase; letter-spacing: 0.1em;
             color: var(--accent); margin-block-end: 0.5rem; }
  .grid p { color: var(--muted); font-size: 0.875rem; }
  @media (max-width: 900px) {
    .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid article:nth-child(3n) { border-inline-end: 1px solid var(--line); }
    .grid article:nth-child(2n) { border-inline-end: 0; }
  }
  @media (max-width: 620px) {
    .grid { grid-template-columns: 1fr; }
    .grid article { border-inline-end: 0 !important; }
  }

  .contact {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border: 1px solid var(--line);
    background: var(--panel);
  }
  .contact > div { padding: 1.125rem; border-inline-end: 1px solid var(--line); }
  .contact > div:last-child { border-inline-end: 0; }
  .contact dt { font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.12em;
                color: var(--muted); margin-block-end: 0.5rem; }
  .contact dd { line-height: 1.8; }
  @media (max-width: 700px) {
    .contact { grid-template-columns: 1fr; }
    .contact > div { border-inline-end: 0; border-block-end: 1px solid var(--line); }
    .contact > div:last-child { border-block-end: 0; }
  }

  .colophon {
    margin-block-start: clamp(3rem, 6vw, 5rem);
    padding-block: 1.5rem 3rem;
    border-block-start: 1px solid var(--line);
    font-size: 0.8125rem;
  }
}