/* v2.css: editorial layout system (rails, bands, signature table, spines). Tokens only. */
@layer components {
  /* ---------- Announcement bar ---------- */
  .announce { background: var(--band-bg); color: var(--band-fg); font-size: var(--fs-sm); position: relative; z-index: 3; }
  .announce-in { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: var(--space-1) var(--space-3); min-height: 40px; padding-block: var(--space-2); text-align: center; }
  .announce a { color: var(--band-accent); font-weight: var(--fw-semibold); text-decoration: none; }
  .announce a:hover { text-decoration: underline; color: var(--band-accent); }
  .live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--band-accent); animation: pulse 2.4s var(--ease-out) infinite; }
  @media (prefers-reduced-motion: reduce) { .live-dot { animation: none; } }

  /* ---------- Section index + split heads ---------- */
  .section-index { display: flex; align-items: center; gap: var(--space-3); font-size: var(--fs-xs); font-weight: var(--fw-semibold); letter-spacing: var(--track-eyebrow); text-transform: uppercase; color: var(--color-fg-subtle); margin-bottom: var(--space-5); }
  .section-index .num { color: var(--color-accent-text); font-variant-numeric: tabular-nums; }
  .section-index .bar { width: 2.5rem; height: 1px; background: var(--color-border-strong); }
  .head-split { display: grid; gap: var(--space-5); grid-template-columns: minmax(0, 1fr); margin-bottom: clamp(2.5rem, 2rem + 3vw, 4.5rem); align-items: end; }
  .head-split h2 { max-width: 20ch; }
  @media (min-width: 60rem) { .head-split { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--space-8); } }
  .two-tone { color: var(--color-fg-subtle); max-width: 40rem; }
  .two-tone strong { color: var(--color-fg); font-weight: var(--fw-medium); }
  .muted-eyebrow { color: var(--color-fg-subtle); }
  .btn-lg { --btn-h: 56px; padding: 0 var(--space-6); font-size: var(--fs-md); }

  /* ---------- Bands ---------- */
  .band-crema { background-color: var(--color-bg-crema); }

  /* ---------- Hero v2 ---------- */
  .hero-v2 { min-height: calc(100svh - var(--nav-h) - 40px); padding-block: clamp(2.5rem, 1.5rem + 5vw, 6rem); }
  .hero-v2 .hero-grid { align-items: center; }
  @media (min-width: 64rem) { .hero-v2 .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-7); } }
  .hero-v2 h1 { max-width: 11ch; }
  .hero-v2 .lede { font-size: var(--fs-lg); max-width: 34rem; }
  .hero-visual { min-width: 0; }

  /* ---------- Signature round table ---------- */
  .rtable { margin: 0; display: grid; gap: var(--space-3); justify-items: center; }
  .rtable-stage { position: relative; width: min(100%, 36rem); aspect-ratio: 1; container-type: inline-size; }
  .rtable-svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
  .rt-orbit { fill: none; stroke: var(--color-border-strong); stroke-width: 1; stroke-dasharray: 2 7; transform-origin: 200px 200px; animation: spin 90s linear infinite; }
  .rt-orbit2 { fill: none; stroke: var(--color-border); stroke-width: 1; }
  .rt-rim { fill: var(--color-bg-muted); stroke: var(--color-border-strong); stroke-width: 1; }
  .rt-top { stroke: var(--color-border); }
  .rt-s1 { stop-color: var(--color-bg-raised); }
  .rt-s2 { stop-color: var(--color-bg-sunken); }
  .rt-cups circle { fill: var(--color-bg-raised); stroke: var(--color-accent); stroke-width: 1.5; }
  .rt-steam { fill: none; stroke: var(--color-accent); stroke-width: 1.4; stroke-linecap: round; opacity: 0.8; }
  @keyframes spin { to { transform: rotate(360deg); } }
  .rtable-center { position: absolute; left: 50%; top: 50%; translate: -50% -44%; width: 44cqi; text-align: center; display: grid; gap: 1.4cqi; justify-items: center; }
  .rtable-center .eyebrow { font-size: max(0.625rem, 2.2cqi); }
  .rtable-center p { font-family: var(--font-display); font-size: max(0.875rem, 3.6cqi); line-height: 1.2; letter-spacing: -0.015em; text-wrap: balance; }
  .rtable-center .subtle { font-size: max(0.625rem, 2.2cqi); }
  .rt-seats { position: absolute; inset: 0; list-style: none; padding: 0; margin: 0; }
  .seat { position: absolute; left: 50%; top: 50%; width: 22cqi; margin: -7cqi 0 0 -11cqi; display: grid; justify-items: center; gap: 0.8cqi; text-align: center; --a: 0deg;
    transform: rotate(var(--a)) translateY(-40cqi) rotate(calc(var(--a) * -1)); }
  .seat:nth-child(2) { --a: 45deg; } .seat:nth-child(3) { --a: 90deg; } .seat:nth-child(4) { --a: 135deg; }
  .seat:nth-child(5) { --a: 180deg; } .seat:nth-child(6) { --a: 225deg; } .seat:nth-child(7) { --a: 270deg; } .seat:nth-child(8) { --a: 315deg; }
  .avatar { width: 11cqi; height: 11cqi; min-width: 36px; min-height: 36px; border-radius: 50%; display: grid; place-items: center; font-size: max(0.625rem, 2.4cqi); font-weight: var(--fw-semibold); letter-spacing: 0.02em;
    background: var(--color-bg-raised); color: var(--color-fg); box-shadow: 0 0 0 1px var(--color-border-strong), 0 6px 14px -8px oklch(from var(--bean-12) l c h / 0.4);
    animation: speak 16s var(--ease-out) infinite; }
  .seat.host .avatar { background: var(--color-accent-soft); color: var(--color-accent-text); }
  .seat-meta { display: grid; line-height: 1.15; }
  .seat-meta b { font-size: max(0.6875rem, 2.3cqi); font-weight: var(--fw-semibold); }
  .seat-meta small { font-size: max(0.6875rem, 2.3cqi); color: var(--color-fg-subtle); }
  .seat:nth-child(2) .avatar { animation-delay: 2s; } .seat:nth-child(3) .avatar { animation-delay: 4s; } .seat:nth-child(4) .avatar { animation-delay: 6s; }
  .seat:nth-child(5) .avatar { animation-delay: 8s; } .seat:nth-child(6) .avatar { animation-delay: 10s; } .seat:nth-child(7) .avatar { animation-delay: 12s; } .seat:nth-child(8) .avatar { animation-delay: 14s; }
  @keyframes speak {
    0%, 11% { background: var(--color-accent); color: var(--color-accent-fg); box-shadow: 0 0 0 3px var(--color-bg), 0 0 0 5px var(--color-accent), 0 0 0 14px oklch(from var(--color-accent) l c h / 0.12); }
    13%, 100% { }
  }
  @media (prefers-reduced-motion: reduce) { .avatar, .rt-orbit { animation: none; } }

  /* ---------- Ticker ---------- */
  .ticker { overflow: clip; border-bottom: var(--hairline) solid var(--color-border); padding-block: var(--space-4); }
  .ticker-track { display: flex; width: max-content; animation: marquee 60s linear infinite; }
  .ticker:hover .ticker-track, .ticker:focus-within .ticker-track { animation-play-state: paused; }
  .ticker ul { display: flex; gap: var(--space-7); padding-inline-end: var(--space-7); list-style: none; margin: 0; }
  .ticker li { font-family: var(--font-display); font-size: var(--fs-lg); color: var(--color-fg-muted); white-space: nowrap; display: inline-flex; align-items: center; gap: var(--space-7); }
  .ticker li::after { content: "✦"; font-size: 0.6em; color: var(--color-accent); }
  @keyframes marquee { to { transform: translateX(-50%); } }
  @media (prefers-reduced-motion: reduce) {
    .ticker-track { animation: none; width: auto; justify-content: center; }
    .ticker-track ul[aria-hidden] { display: none; }
    .ticker ul { flex-wrap: wrap; justify-content: center; gap: var(--space-2) var(--space-5); padding-inline: var(--gutter); }
  }

  /* ---------- Big numbers ---------- */
  .numbers { padding-block: clamp(3rem, 2rem + 4vw, 6rem); }
  .bignums { display: grid; grid-template-columns: minmax(0, 1fr); margin: 0; }
  @media (min-width: 40rem) { .bignums { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  @media (min-width: 64rem) { .bignums { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
  .bignums > div { display: grid; grid-template-rows: auto auto 1fr; padding: var(--space-5) var(--space-5) var(--space-5) 0; border-top: var(--hairline) solid var(--color-border-strong); }
  @media (min-width: 40rem) { .bignums > div { padding-inline-start: var(--space-5); border-inline-start: var(--hairline) solid var(--color-border); } .bignums > div:nth-child(odd) { border-inline-start: 0; padding-inline-start: 0; } }
  @media (min-width: 64rem) { .bignums > div:nth-child(odd) { border-inline-start: var(--hairline) solid var(--color-border); padding-inline-start: var(--space-5); } .bignums > div:first-child { border-inline-start: 0; padding-inline-start: 0; } }
  .bignums dt { font-size: var(--fs-xs); font-weight: var(--fw-semibold); letter-spacing: var(--track-eyebrow); text-transform: uppercase; color: var(--color-fg-subtle); }
  .bignums dd { margin: 0; }
  .bignums .n { font-family: var(--font-display); font-weight: 300; font-size: clamp(4.5rem, 3rem + 6vw, 9rem); line-height: 0.95; letter-spacing: -0.05em; margin-block: var(--space-3); font-variant-numeric: lining-nums tabular-nums; }
  .bignums > div:nth-child(2) .n { color: var(--color-accent-text); font-style: italic; }
  .bignums .desc { color: var(--color-fg-muted); font-size: var(--fs-sm); max-width: 26ch; }

  /* ---------- Proportional timeline ---------- */
  .timeline { list-style: none; padding: 0; margin: 0 0 var(--space-7); display: grid; gap: var(--space-5); }
  .timeline li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-2) var(--space-3); min-width: 0; }
  .timeline .t-bar { grid-column: 1 / -1; height: 10px; border-radius: 5px; background: var(--color-accent); }
  .timeline .t-frame .t-bar, .timeline .t-commit .t-bar { width: 22%; background: var(--color-accent-soft); box-shadow: inset 0 0 0 1px oklch(from var(--color-accent) l c h / 0.35); }
  .timeline .t-cases .t-bar { width: 100%; }
  .timeline .t-test .t-bar { width: 56%; background: oklch(from var(--color-accent) l c h / 0.55); }
  .timeline b { font-weight: var(--fw-semibold); }
  .timeline .num { font-size: var(--fs-sm); color: var(--color-fg-subtle); }
  .timeline p { grid-column: 1 / -1; font-size: var(--fs-sm); color: var(--color-fg-muted); max-width: 34ch; }
  @media (min-width: 52rem) {
    .timeline { display: flex; gap: var(--space-2); }
    .timeline li { flex: 10 1 0; }
    .timeline .t-cases { flex-grow: 45; } .timeline .t-test { flex-grow: 25; }
    .timeline .t-bar, .timeline .t-frame .t-bar, .timeline .t-commit .t-bar, .timeline .t-test .t-bar { width: 100%; }
    .timeline .t-frame p, .timeline .t-commit p { font-size: var(--fs-xs); }
  }

  .inside-grid { display: grid; gap: var(--space-6); grid-template-columns: minmax(0, 1fr); align-items: start; }
  @media (min-width: 64rem) { .inside-grid { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); } }
  .inside-notes { display: grid; gap: var(--space-5); padding: var(--space-6); border-radius: var(--radius-lg); box-shadow: 0 0 0 var(--hairline) var(--color-border) inset; }
  .ticks { list-style: none; padding: 0; display: grid; gap: var(--space-4); }
  .ticks li { display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: var(--space-3); color: var(--color-fg-muted); font-size: var(--fs-sm); }
  .ticks svg { width: 20px; height: 20px; color: var(--color-accent); margin-top: 0.1em; }
  .ticks b { color: var(--color-fg); font-weight: var(--fw-semibold); }

  /* ---------- Bento v2 tiles ---------- */
  .bento-v2 { display: grid; gap: var(--space-4); grid-template-columns: minmax(0, 1fr); }
  @media (min-width: 48rem) { .bento-v2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .bento-v2 .tile-lg { grid-column: 1 / -1; } }
  @media (min-width: 72rem) { .bento-v2 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .bento-v2 .tile-lg { grid-column: span 2; } }
  .tile { padding: var(--space-3); gap: 0; overflow: hidden; }
  .tile-copy { padding: var(--space-4) var(--space-4) var(--space-5); display: grid; gap: var(--space-2); }
  .tile-viz { margin-top: auto; min-height: 11rem; border-radius: calc(var(--radius-lg) - var(--space-3)); display: grid; place-items: center; padding: var(--space-5);
    background: radial-gradient(ellipse 80% 90% at 50% 110%, var(--color-glow), transparent 70%), var(--color-bg-sunken); box-shadow: inset 0 0 0 1px var(--color-border); }
  .tile-lg .tile-viz { min-height: 14rem; }
  .tile-viz > * { width: 100%; }
  .tile .term { text-align: center; font-size: var(--fs-2xl); }
  .paper-doc { position: relative; width: min(100%, 15rem); justify-self: center; background: var(--color-bg-raised); border-radius: var(--radius-sm); padding: var(--space-4); display: grid; gap: 7px; rotate: -2.5deg;
    box-shadow: 0 0 0 1px var(--color-border), 0 18px 30px -18px oklch(from var(--bean-12) l c h / 0.45); font-size: var(--fs-xs); }
  .paper-doc b { font-family: var(--font-display); font-size: var(--fs-md); font-weight: 450; }
  .paper-doc small { color: var(--color-fg-subtle); margin-bottom: var(--space-1); }
  .paper-doc i { height: 5px; border-radius: 3px; background: var(--color-border-strong); }
  .paper-doc i:nth-of-type(2) { width: 82%; } .paper-doc i:nth-of-type(3) { width: 90%; } .paper-doc i:nth-of-type(4) { width: 58%; }
  .stamp { position: absolute; right: var(--space-3); bottom: var(--space-3); rotate: -12deg; font-size: 0.625rem; font-weight: var(--fw-semibold); letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent-text); border: 1.5px solid currentColor; border-radius: 4px; padding: 2px 6px; }
  .mini-thread .typing { display: inline-flex; gap: 4px; width: auto; justify-self: start; padding: var(--space-2) var(--space-3); }
  .typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--color-fg-subtle); animation: blink 1.4s infinite; }
  .typing i:nth-child(2) { animation-delay: 0.2s; } .typing i:nth-child(3) { animation-delay: 0.4s; }
  @keyframes blink { 0%, 60%, 100% { opacity: 0.25; } 30% { opacity: 1; } }
  @media (prefers-reduced-motion: reduce) { .typing i { animation: none; opacity: 0.6; } }
  .tile .mini-pulse { height: 7rem; }

  /* ---------- Finder ticket ---------- */
  .ticket { position: relative; box-shadow: 0 0 0 var(--hairline) var(--color-border), var(--shadow-pop); }
  .ticket-head { display: flex; flex-wrap: wrap; gap: var(--space-2); justify-content: space-between; align-items: center; padding-bottom: var(--space-4); border-bottom: 1.5px dashed var(--color-border-strong); }
  .band-crema .finder-result { background: var(--color-bg-raised); }

  /* ---------- Rules grid + pull quote ---------- */
  .pull { font-family: var(--font-display); font-size: var(--fs-xl); line-height: 1.25; letter-spacing: -0.015em; max-width: 30ch; margin: 0; }
  .pull em { color: var(--color-accent-text); }
  .rules-grid { list-style: none; padding: 0; margin: 0; display: grid; gap: 0 var(--space-6); grid-template-columns: minmax(0, 1fr); counter-reset: r; }
  @media (min-width: 40rem) { .rules-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  @media (min-width: 64rem) { .rules-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
  .rules-grid li { align-content: start; counter-increment: r; padding-block: var(--space-6); border-top: var(--hairline) solid var(--color-border); display: grid; gap: var(--space-2); }
  .rules-grid li::before { content: counter(r, decimal-leading-zero); font-size: var(--fs-xs); font-weight: var(--fw-semibold); color: var(--color-accent-text); font-variant-numeric: tabular-nums; }
  .rules-grid h3 { font-size: var(--fs-xl); }
  .rules-grid p { color: var(--color-fg-muted); font-size: var(--fs-sm); max-width: 32ch; }

  /* ---------- Book spines ---------- */
  .spines { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
  .spine > a, .spine > div { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-1) var(--space-5); align-items: center; padding: var(--space-5) var(--space-6); border-radius: 4px var(--radius-sm) var(--radius-sm) 4px; text-decoration: none; color: var(--paper-0);
    background-image: repeating-linear-gradient(90deg, oklch(from var(--paper-0) l c h / 0.035) 0 2px, transparent 2px 5px), linear-gradient(90deg, oklch(from var(--bean-12) l c h / 0.25), transparent 6%, transparent 94%, oklch(from var(--bean-12) l c h / 0.2));
    background-color: var(--spine-bg, var(--spine-1)); box-shadow: 0 1px 0 oklch(from var(--paper-0) l c h / 0.15) inset, 0 10px 18px -14px oklch(from var(--bean-12) l c h / 0.6);
    transition: transform var(--dur-base) var(--ease-out); }
  .spine-meta { grid-column: 1 / -1; font-size: var(--fs-xs); letter-spacing: var(--track-eyebrow); text-transform: uppercase; font-weight: var(--fw-semibold); }
  .spine-title { font-family: var(--font-display); font-size: var(--fs-xl); line-height: 1.15; letter-spacing: -0.015em; }
  .spine-mark { font-size: var(--fs-lg); }
  @media (min-width: 52rem) {
    .spine > a, .spine > div { grid-template-columns: 14rem minmax(0, 1fr) auto; }
    .spine-meta { grid-column: auto; }
  }
  .spine.sp-1 { --spine-bg: var(--spine-1); margin-inline: 0 3%; }
  .spine.sp-2 { --spine-bg: var(--spine-2); margin-inline: 1.5% 0; }
  .spine.sp-3 { --spine-bg: var(--spine-3); margin-inline: 0.5% 1.5%; }
  .spine.sp-4 { --spine-bg: var(--spine-4); margin-inline: 2% 0.5%; }
  .spine.sp-5 { --spine-bg: var(--spine-5); margin-inline: 1% 2.5%; }
  .spine.is-soon > div { color: var(--bean-9); box-shadow: inset 0 0 0 1px oklch(from var(--bean-11) l c h / 0.15); }
  @media (hover: hover) and (pointer: fine) { .spine > a:hover { transform: translateX(10px); color: var(--paper-0); } }
  .spine > a:focus-visible { box-shadow: 0 0 0 2px var(--color-bg), 0 0 0 4px var(--color-focus); }

  /* ---------- Finale ---------- */
  .finale { padding-block: clamp(4rem, 3rem + 6vw, 9rem); position: relative; overflow: clip; isolation: isolate; }
  .finale::before { content: ""; position: absolute; z-index: -1; inset: 30% -10% -40% 30%; background: radial-gradient(ellipse 50% 50% at 50% 50%, oklch(from var(--band-accent) l c h / 0.3), transparent 70%); }
  .finale-grid { display: grid; gap: var(--space-8); grid-template-columns: minmax(0, 1fr); align-items: center; }
  @media (min-width: 60rem) { .finale-grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); } }
  .finale h2 { font-size: var(--fs-3xl); max-width: 14ch; margin-top: var(--space-4); }
  .finale .lede { color: var(--band-fg-muted); margin-top: var(--space-5); }
  .finale-visual { display: grid; place-items: center; }
  .empty-seat { position: relative; width: min(20rem, 70%); aspect-ratio: 1; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-display); font-size: var(--fs-xl); color: var(--band-accent); font-style: italic;
    background: radial-gradient(circle, oklch(from var(--band-accent) l c h / 0.12), transparent 65%); }
  .empty-seat::before, .empty-seat::after { content: ""; position: absolute; inset: 0; border-radius: 50%; border: 1.5px dashed oklch(from var(--band-accent) l c h / 0.6); animation: spin 40s linear infinite; }
  .empty-seat::after { inset: 14%; border-style: solid; border-color: var(--band-border); animation: none; }
  @media (prefers-reduced-motion: reduce) { .empty-seat::before { animation: none; } }

  /* ---------- Generative covers ---------- */
  .cover-art { display: block; width: 100%; height: 100%; }
  .cv-bg { fill: var(--color-bg-muted); }
  .cv-line { fill: none; stroke: var(--color-border-strong); stroke-width: 1; }
  .cv-accent { fill: var(--color-accent); }
  .cv-accent-s { fill: none; stroke: var(--color-accent); stroke-width: 2.5; }
  .cv-block { fill: var(--color-accent-soft); }
  .cv-dot { fill: var(--color-border-strong); }
  .cv-title { font-family: var(--font-display); font-size: 22px; fill: var(--color-fg); }
  .post-card.feature .cv-bg { fill: var(--band-bg-raised); }
}

/* Structural rails & ruled section tops (Stripe/Vercel precision) */
@layer utilities {
  .rails {
    --rx: max(calc(var(--gutter) / 2), calc(50% - var(--container) / 2 - 1.5rem));
    background-image: linear-gradient(var(--color-rail), var(--color-rail)), linear-gradient(var(--color-rail), var(--color-rail));
    background-size: 1px 100%, 1px 100%;
    background-repeat: no-repeat;
    background-position: var(--rx) 0, calc(100% - var(--rx)) 0;
  }
  .band-dark.rails { --color-rail: oklch(from var(--paper-1) l c h / 0.08); }
  .ruled { position: relative; box-shadow: inset 0 1px 0 var(--color-border); }
  .ruled::before, .ruled::after {
    content: ""; position: absolute; top: -5px; width: 11px; height: 11px; z-index: 2; pointer-events: none;
    background: linear-gradient(var(--color-fg-subtle), var(--color-fg-subtle)) center / 1px 100% no-repeat, linear-gradient(var(--color-fg-subtle), var(--color-fg-subtle)) center / 100% 1px no-repeat;
    left: calc(max(var(--gutter) / 2, (100% - var(--container)) / 2 - 1.5rem) - 5px);
  }
  .ruled::after { left: auto; right: calc(max(var(--gutter) / 2, (100% - var(--container)) / 2 - 1.5rem) - 5px); }
}
@layer components {
  .split-hero { align-items: center; }
  @media (min-width: 64rem) { .split-hero { grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr); } }
  .split-hero .rtable-stage { width: min(100%, 30rem); }
  .article-cover { margin-top: var(--space-7); aspect-ratio: 16 / 5; border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 0 0 1px var(--color-border); }
  .post-card .cover { margin: calc(var(--space-6) * -1) calc(var(--space-6) * -1) var(--space-3); border-radius: var(--radius-lg) var(--radius-lg) 0 0; aspect-ratio: 16 / 7; }
  .post-card.feature .cover { aspect-ratio: 16 / 6; }
}