/* ============================================================================
   shotgate.coldqubit.org · surface styles
   ----------------------------------------------------------------------------
   Page-level layout for the shotgate landing surface. Tokens and canonical
   component classes come from styles.css (fonts + colors_and_type +
   components); nothing here re-implements them.
   ============================================================================ */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font-sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
/* anchor-nav targets clear the 66px sticky topnav */
.section[id] { scroll-margin-top: 80px; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 40px; }
.mono { font-family: var(--font-mono); }

.gh-link { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 14px; color: var(--text-secondary); }
.gh-link:hover { color: var(--text); }
.gh-link svg { width: 17px; height: 17px; }

/* external links inside .topnav-links get a leading icon, like .gh-link */
.topnav-links .ext-link { display: inline-flex; align-items: center; gap: 7px; }
.topnav-links .ext-link svg { width: 14px; height: 14px; opacity: 0.85; }

/* hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero .lattice { position: absolute; inset: 0; background-image: var(--dot-grid); background-size: var(--dot-size) var(--dot-size); -webkit-mask-image: radial-gradient(120% 130% at 88% -10%, #000 0%, transparent 62%); mask-image: radial-gradient(120% 130% at 88% -10%, #000 0%, transparent 62%); }
.hero .glow { position: absolute; top: -260px; right: -180px; width: 700px; height: 700px; background: radial-gradient(circle, var(--project-accent-glow) 0%, transparent 62%); opacity: 0.55; pointer-events: none; }
/* .hero-inner shares its element with .wrap; keep the 40px side padding */
.hero-inner { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; padding: 72px 40px 64px; }
.hero h1 { font: var(--text-display); letter-spacing: -0.045em; margin: 18px 0 0; }
.hero .tagline { font: var(--text-lead); color: var(--fg-2); margin: 16px 0 0; max-width: 44ch; text-wrap: pretty; }
.hero .tagline .a { color: var(--accent); }
.hero-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 26px; }

/* terminal sizing on this surface */
.hero-term .terminal-body { min-height: 332px; overflow-x: auto; }

/* grid children may hold wide code/console content: let them shrink, the
   inner pre/terminal scrolls instead of widening the page */
.hero-inner > *, .how > *, .ci > * { min-width: 0; }

/* sections */
.section { padding: 60px 0; }
.section.alt { background: var(--bg-sunken); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { margin-bottom: 28px; }
.sec-head h2 { font: var(--text-h2); letter-spacing: -0.03em; margin: 12px 0 0; }
.sec-head p { font: var(--text-body); color: var(--fg-3); margin: 8px 0 0; max-width: 62ch; }

/* how it works */
.how { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.steps { display: flex; flex-direction: column; gap: 14px; }
.step { display: flex; gap: 16px; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 18px 20px; }
.step .n { font-family: var(--font-mono); font-weight: 600; font-size: 13px; color: var(--accent); border: 1px solid var(--border-interactive); border-radius: var(--radius-sm); width: 30px; height: 30px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.step h4 { font: var(--text-h4); margin: 2px 0 4px; }
.step p { font: var(--text-small); color: var(--text-muted); margin: 0; }
.step p code { font-family: var(--font-mono); font-size: 0.92em; color: var(--accent); background: var(--bg-sunken); padding: 1px 5px; border-radius: var(--radius-xs); }

/* oracle cards: five oracles, 3 + 2 centered */
.oracles { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.oracles .card { grid-column: span 2; }
.oracles .card:nth-child(4) { grid-column: 2 / span 2; }
.oracles .card:nth-child(5) { grid-column: 4 / span 2; }
.oracles .card .sym { font-family: var(--font-mono); font-weight: 600; font-size: 21px; color: var(--accent); }
.oracles .card h4 { margin-top: 10px; }

/* inline doc link + mono code in section intros */
.sec-head p a.doclink { color: var(--accent); border-bottom: 1px solid var(--border-interactive); }
.sec-head p a.doclink:hover { border-bottom-color: var(--accent); }
.sec-head p code.mono { font-size: 0.92em; color: var(--accent); background: var(--bg-sunken); padding: 1px 5px; border-radius: var(--radius-xs); }

/* backends */
.backends { display: flex; flex-direction: column; }
.be-row { display: flex; align-items: center; gap: 18px; padding: 16px 4px; border-top: 1px solid var(--line); }
.be-row:last-child { border-bottom: 1px solid var(--line); }
.be-row .be-name { font-family: var(--font-mono); font-weight: 600; font-size: 15px; color: var(--fg-1); width: 130px; flex-shrink: 0; }
.be-row .be-desc { font: var(--text-small); color: var(--text-muted); }
.be-row .chip { margin-left: auto; flex-shrink: 0; }

/* CI section */
.ci { display: grid; grid-template-columns: 1.15fr 1fr; gap: 16px; align-items: start; }
.exitcodes { display: flex; flex-direction: column; gap: 12px; }
.exit { display: flex; align-items: center; gap: 14px; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 13px 16px; }
.exit .code-n { font-family: var(--font-mono); font-weight: 600; font-size: 15px; width: 34px; text-align: center; flex-shrink: 0; }
.exit.e0 .code-n { color: var(--green-400); }
.exit.e1 .code-n { color: var(--red-400); }
.exit.e2 .code-n { color: var(--amber-400); }
.exit p { font: var(--text-small); color: var(--text-secondary); margin: 0; }

/* footer */
.foot { border-top: 1px solid var(--line); background: var(--bg-code); }
.foot-inner { display: flex; align-items: center; gap: 16px; padding: 30px 0; flex-wrap: wrap; }
.foot-inner .right { margin-left: auto; display: flex; gap: 18px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 13px; color: var(--fg-3); }
.foot-inner .right a, .foot-inner .right span { white-space: nowrap; }
.foot-inner .right a:hover { color: var(--fg-1); }

/* 404 */
.nf { min-height: calc(100vh - 66px); display: flex; align-items: center; }
.nf .terminal-window { width: min(640px, 100%); margin: 0 auto; }
.nf .terminal-body { min-height: 0; }
.nf-actions { margin-top: 14px; }
.nf-actions a { font-family: var(--font-mono); font-size: 13.5px; color: var(--accent); }
.nf-actions a:hover { text-decoration: underline; }

@media (max-width: 980px) {
  .hero-inner, .how, .ci { grid-template-columns: 1fr; }
  .oracles { grid-template-columns: 1fr; }
  .oracles .card, .oracles .card:nth-child(4), .oracles .card:nth-child(5) { grid-column: auto; }
}

/* mobile nav: never hide the links; they become a scrollable mono row */
@media (max-width: 980px) {
  .topnav-inner { flex-wrap: wrap; height: auto; padding-top: 12px; column-gap: 16px; }
  .topnav-brand { order: 1; }
  .gh-link { order: 2; margin-left: auto; }
  .topnav-links { order: 3; flex-basis: 100%; margin-left: 0; gap: 18px; font-size: 13px; padding: 10px 2px 12px; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .topnav-links::-webkit-scrollbar { display: none; }
  .section[id] { scroll-margin-top: 112px; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 22px; }
  .hero-inner { padding-left: 22px; padding-right: 22px; padding-top: 48px; }
  .kicker { white-space: normal; }
  .hero-term .terminal-body { min-height: 0; }
  .section { padding: 44px 0; }
  .be-row { flex-wrap: wrap; row-gap: 8px; }
  .be-row .chip { margin-left: 0; }
  .code-bar .code-tag { display: none; }
  .foot-inner .right { margin-left: 0; }
}