/* rg-asm dialects.html — page-specific layout (extends ../rg-tools.css) */
.page {
    max-width: calc(var(--page-w) + var(--rail-w) + 3rem);
    margin: 0 auto;
    padding: 2rem 1.25rem 5rem;
  }

  .hero {
    margin-bottom: 0;
  }
  @media (min-width: 960px) {
    .layout > .hero {
      grid-column: 1 / -1;
    }
    .layout > .outro,
    .layout > footer {
      grid-column: 1 / -1;
    }
  }
  h1 {
    font: 700 2.4rem/1.08 var(--mono);
    margin: 0 0 .5rem;
    letter-spacing: -0.03em;
    color: var(--amber);
  }
  .statstrip {
    display: flex;
    flex-wrap: wrap;
    gap: .55rem;
    margin-top: 1.25rem;
  }
  .stat {
    font: 700 .72rem/1 var(--mono);
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--dim);
    border: 1px solid var(--line);
    background: var(--panel);
    padding: .55rem .75rem;
  }
  .stat b { color: var(--amber); font-weight: 700; }

  .layout {
    display: grid;
    gap: 2rem;
  }
  @media (min-width: 960px) {
    .layout {
      grid-template-columns: var(--rail-w) minmax(0, 1fr);
      align-items: start;
      gap: 2.5rem;
    }
  }

  .rail {
    position: sticky;
    top: 1rem;
    align-self: start;
  }
  .rail__label {
    font: 700 .68rem/1 var(--mono);
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--amber-dim);
    margin: 0 0 .65rem;
  }
  .rail nav {
    display: flex;
    flex-direction: column;
    gap: .2rem;
    border-left: 1px solid var(--line);
    padding-left: .85rem;
  }
  .rail a {
    font: 700 .78rem/1.35 var(--mono);
    color: var(--dim);
    border: 0;
    padding: .2rem 0;
    transition: color .15s ease, transform .15s ease;
  }
  .rail a:hover { color: var(--ink); }
  .rail a.is-active {
    color: var(--amber);
    transform: translateX(.15rem);
  }
  .rail__hint {
    margin: 1rem 0 0;
    font: .72rem/1.4 var(--mono);
    color: var(--dim);
  }
  @media (max-width: 959px) {
    .rail {
      position: relative;
      top: auto;
      overflow-x: auto;
      padding-bottom: .35rem;
    }
    .rail nav {
      flex-direction: row;
      flex-wrap: nowrap;
      border-left: 0;
      border-bottom: 1px solid var(--line);
      padding: 0 0 .55rem;
      gap: .75rem;
    }
    .rail a.is-active { transform: none; }
  }

  .era {
    margin: 0 0 3rem;
    scroll-margin-top: 1.25rem;
  }
  .era__head {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    align-items: baseline;
    gap: .85rem;
    margin: 0 0 1.35rem;
    padding: .65rem 0 .55rem;
    background: linear-gradient(180deg, rgba(7, 8, 11, 0.96), rgba(7, 8, 11, 0.88) 70%, transparent);
    backdrop-filter: blur(4px);
  }
  .era__year {
    font: 700 1.85rem/1 var(--mono);
    color: var(--amber);
    letter-spacing: -0.04em;
  }
  .era__title {
    font: 700 .72rem/1.2 var(--mono);
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--dim);
  }

  .timeline {
    position: relative;
    margin: 0;
    padding: 0;
    list-style: none;
  }
  .timeline::before {
    content: "";
    position: absolute;
    left: .55rem;
    top: .35rem;
    bottom: .35rem;
    width: 1px;
    background: linear-gradient(180deg, var(--amber-dim), var(--line) 18%, var(--line) 82%, transparent);
  }

  .entry {
    position: relative;
    margin: 0 0 1.65rem;
    padding: 0 0 0 2.1rem;
    scroll-margin-top: 4.5rem;
  }
  .entry::before {
    content: "";
    position: absolute;
    left: .3rem;
    top: 1.15rem;
    width: .55rem;
    height: .55rem;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--amber-dim);
    box-shadow: 0 0 0 3px rgba(232, 160, 48, 0.12);
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
  }
  .entry:hover::before,
  .entry:focus-within::before {
    background: var(--amber);
    border-color: var(--amber);
    box-shadow: 0 0 0 5px rgba(232, 160, 48, 0.18);
  }
  .card {
    border: 1px solid var(--line);
    background: var(--panel);
    padding: 1.15rem 1.2rem 1.25rem;
    transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
  }
  .entry:hover .card,
  .entry:focus-within .card {
    border-color: #3a4558;
    box-shadow: 0 14px 36px rgba(0, 0, 0, 0.28);
  }
  @media (prefers-reduced-motion: no-preference) {
    .entry:hover .card { transform: translateY(-1px); }
  }

  .card__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .45rem .65rem;
    margin-bottom: .55rem;
  }
  .card__when {
    font: 700 .72rem/1 var(--mono);
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--amber-dim);
  }
  .dialect {
    appearance: none;
    cursor: pointer;
    font: 700 .7rem/1 var(--mono);
    color: #120c04;
    background: var(--cyan);
    border: 0;
    padding: .35rem .55rem;
    letter-spacing: .02em;
  }
  .dialect:hover { filter: brightness(1.08); }
  .dialect:focus-visible {
    outline: 2px solid var(--amber);
    outline-offset: 2px;
  }
  .dialect[data-copied="1"] { background: var(--green); }
  .pending {
    font: 700 .7rem/1 var(--mono);
    color: var(--dim);
    background: transparent;
    border: 1px solid var(--line);
    padding: .35rem .55rem;
    letter-spacing: .02em;
    white-space: nowrap;
  }

  h2.card__title {
    font: 700 1.35rem/1.2 var(--sans);
    margin: 0 0 .35rem;
    letter-spacing: -0.02em;
    color: var(--ink);
    text-transform: none;
  }
  .card__by {
    margin: 0 0 1rem;
    font-size: .92rem;
    color: var(--dim);
  }
  .card__by a { color: var(--ink); border-bottom: 1px dotted var(--line); }
  .card__by a:hover { color: var(--amber); border-color: var(--amber); }

  .card.has-visual {
    display: grid;
    gap: 1rem 1.15rem;
  }
  @media (min-width: 640px) {
    .card.has-visual {
      grid-template-columns: minmax(9.5rem, 12rem) minmax(0, 1fr);
      align-items: start;
    }
  }
  .card__visual {
    margin: 0;
    border: 1px solid var(--line);
    background: #0a0c10;
    overflow: hidden;
  }
  .card__visual a {
    display: block;
    border: 0;
    line-height: 0;
  }
  .card__visual img {
    display: block;
    width: 100%;
    height: auto;
    vertical-align: top;
    background: #000;
  }
  .card__visual--screen img {
    image-rendering: pixelated;
    image-rendering: crisp-edges;
  }
  .card__visual--box img,
  .card__visual--ad img,
  .card__visual--plate img {
    image-rendering: auto;
  }
  .card__visual figcaption {
    font: .62rem/1.35 var(--mono);
    color: var(--dim);
    padding: .4rem .55rem .5rem;
    border-top: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.28);
  }
  .card__visual figcaption a {
    color: var(--dim);
    border-bottom: 1px dotted var(--line);
    line-height: inherit;
  }
  .card__visual figcaption a:hover {
    color: var(--cyan);
    border-color: var(--cyan);
  }
  .card__copy { min-width: 0; }

  .why {
    margin: 0 0 .85rem;
    color: var(--ink);
    font-size: .98rem;
  }
  .why p { margin: 0 0 .7rem; }
  .why p:last-child { margin-bottom: 0; }

  .popular {
    margin: 0 0 1rem;
    padding: .7rem .85rem;
    border-left: 3px solid var(--amber-dim);
    background: rgba(232, 160, 48, 0.06);
    font-size: .9rem;
    color: var(--dim);
  }
  .popular strong {
    display: block;
    font: 700 .68rem/1 var(--mono);
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--amber);
    margin-bottom: .35rem;
  }

  .links {
    display: flex;
    flex-wrap: wrap;
    gap: .45rem .75rem;
    margin: 0;
    padding: 0;
    list-style: none;
    font: .78rem/1.3 var(--mono);
  }
  .links a {
    color: var(--dim);
    border-bottom: 1px dotted var(--line);
  }
  .links a:hover { color: var(--cyan); border-color: var(--cyan); }

  .toast {
    position: fixed;
    left: 50%;
    bottom: 1.25rem;
    transform: translateX(-50%) translateY(1rem);
    opacity: 0;
    pointer-events: none;
    font: 700 .78rem/1 var(--mono);
    color: #120c04;
    background: var(--green);
    padding: .65rem 1rem;
    z-index: 20;
    transition: opacity .2s ease, transform .2s ease;
  }
  .toast.is-on {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }

  .outro {
    margin-top: 2rem;
  }

  footer {
    margin-top: 2rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--line);
    font-size: .82rem;
    color: var(--dim);
    text-align: center;
  }
  footer a { color: var(--amber); border: 0; }
  footer .credits { max-width: 42rem; margin: 0 auto 1rem; font-size: .75rem; line-height: 1.45; }
  /* Per-dialect syntax samples */
  pre.asm-snippet {
    margin: 0 0 1rem;
    padding: .75rem .85rem;
    background: #0a0c10;
    border: 1px solid var(--line);
    font: .78rem/1.5 var(--mono);
    overflow-x: auto;
    color: var(--ink);
    tab-size: 4;
    white-space: pre;
  }
  pre.asm-snippet .cm { color: var(--dim); }
  pre.asm-snippet .dir { color: var(--cyan); font-weight: 600; }
  pre.asm-snippet .mac { color: var(--magenta); font-weight: 600; }
  pre.asm-snippet .mn { color: var(--ink); }
  pre.asm-snippet .op { color: var(--green); }
  pre.asm-snippet .lbl { color: var(--amber); }
  pre.asm-snippet .loc { color: #c090e0; }