/* Beveline site. Tokens come from docs/brand/README.md. */
:root {
  --graphite: #15181c;
  --slate: #23272d;
  --slate-2: #2c3138;
  --chalk: #e6e8eb;
  --chalk-dim: #a4abb4;
  --vellum: #f3f1ea;
  --vellum-2: #eae7dc;
  --rule: #d6d2c3;
  --brass: #e0a45a;
  --bronze: #b5651d;
  --umber: #7a4210;
  --glass: #9ed1db;
  --plumb: #2f6fed;
  --cut: #d9480f;

  --display: 'Archivo', 'Segoe UI', system-ui, sans-serif;
  --body: 'IBM Plex Sans', 'Segoe UI', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;

  --gutter: clamp(20px, 5vw, 56px);
  --max: 1180px;

  /* semantic tokens: light (default) */
  color-scheme: light;
  --bg: #f3f1ea;
  --bg-2: #eae7dc;
  --ink: #15181c;
  --text-2: #3b4148;
  --text-3: #5b626b;
  --accent: #b5651d;
  --accent-ink: #7a4210;
  --band: #15181c;
  --band-border: #15181c;
  --shot-border: #000;
  --grid: rgba(21, 24, 28, 0.045);
  --shadow: rgba(21, 24, 28, 0.22);
  --hover: rgba(21, 24, 28, 0.06);
  --chip-bg: rgba(181, 101, 29, 0.07);
  --btn-bg: #15181c;
  --btn-fg: #e6e8eb;
  --btn-hover: #2c3138;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    color-scheme: dark;
    --bg: #15181c;
    --bg-2: #1b1f24;
    --ink: #e6e8eb;
    --text-2: #b3bac3;
    --text-3: #8f98a3;
    --rule: #343a42;
    --accent: #e0a45a;
    --accent-ink: #e0a45a;
    --band: #0d0f12;
    --band-border: #2a3037;
    --shot-border: #3a4048;
    --grid: rgba(230, 232, 235, 0.045);
    --shadow: rgba(0, 0, 0, 0.55);
    --hover: rgba(230, 232, 235, 0.08);
    --chip-bg: rgba(224, 164, 90, 0.1);
    --btn-bg: #e0a45a;
    --btn-fg: #15181c;
    --btn-hover: #ebb872;
  }
}
:root[data-theme='dark'] {
  color-scheme: dark;
  --bg: #15181c;
  --bg-2: #1b1f24;
  --ink: #e6e8eb;
  --text-2: #b3bac3;
  --text-3: #8f98a3;
  --rule: #343a42;
  --accent: #e0a45a;
  --accent-ink: #e0a45a;
  --band: #0d0f12;
  --band-border: #2a3037;
  --shot-border: #3a4048;
  --grid: rgba(230, 232, 235, 0.045);
  --shadow: rgba(0, 0, 0, 0.55);
  --hover: rgba(230, 232, 235, 0.08);
  --chip-bg: rgba(224, 164, 90, 0.1);
  --btn-bg: #e0a45a;
  --btn-fg: #15181c;
  --btn-hover: #ebb872;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--plumb); outline-offset: 3px; border-radius: 2px; }

.wrap { width: min(var(--max), 100% - 2 * var(--gutter)); margin-inline: auto; }

h1, h2, h3 { font-family: var(--display); font-stretch: 118%; font-weight: 700; letter-spacing: -0.02em; line-height: 1.08; margin: 0; }
h1 { font-size: clamp(2.5rem, 6.2vw, 4.75rem); }
h2 { font-size: clamp(1.9rem, 3.8vw, 3rem); }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; line-height: 1.25; }
p { margin: 0 0 1em; }
.mono { font-family: var(--mono); }
.eyebrow {
  font: 500 0.78rem/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin-bottom: 18px;
  display: flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ''; width: 28px; height: 2px; background: var(--accent); }
.dark .eyebrow { color: var(--brass); }
.dark .eyebrow::before { background: var(--brass); }
.lede { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--text-2); max-width: 58ch; }
.dark .lede { color: var(--chalk-dim); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 700 1.3rem/1 var(--display); font-stretch: 118%; letter-spacing: -0.02em; }
.brand svg { width: 28px; height: 28px; }
.nav ul { display: flex; gap: 26px; list-style: none; margin: 0; padding: 0; font-size: 0.95rem; }
.nav ul a { text-decoration: none; color: var(--text-2); }
.nav ul a:hover { color: var(--ink); text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 6px; }
.pill {
  font: 500 0.74rem/1 var(--mono); letter-spacing: 0.06em; text-transform: uppercase;
  padding: 7px 11px; border: 1px solid var(--rule); border-radius: 999px; white-space: nowrap;
  display: inline-flex; align-items: center; gap: 8px; background: var(--bg);
}
.pill i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); display: block; }
@media (max-width: 860px) { .nav ul { display: none; } }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: -1px -1px;
  padding: clamp(48px, 8vw, 104px) 0 0;
  border-bottom: 1px solid var(--rule);
}
.hero .wrap { position: relative; }
.hero-mark { position: absolute; right: 0; top: -8px; width: min(40%, 440px); height: auto; opacity: 0.85; pointer-events: none; }
@media (max-width: 900px) { .hero-mark { display: none; } }
.hero-copy { max-width: 760px; position: relative; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lede { margin-top: 26px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 22px; text-decoration: none;
  font: 600 0.98rem/1 var(--body); border-radius: 4px; border: 1.5px solid var(--btn-bg);
  background: var(--btn-bg); color: var(--btn-fg); transition: transform 0.12s, background 0.12s;
}
.btn:hover { background: var(--btn-hover); border-color: var(--btn-hover); transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn.ghost:hover { background: var(--hover); border-color: var(--ink); }
.dark .btn { background: var(--brass); color: var(--graphite); border-color: var(--brass); }
.dark .btn:hover { background: #ebb872; border-color: #ebb872; }
.status-note { font: 500 0.82rem/1.4 var(--mono); color: var(--text-2); margin-top: 22px; max-width: 62ch; }

.stage { position: relative; margin-top: clamp(40px, 6vw, 72px); }
.stage::before { /* offset-line echo behind the window: the mark, scaled up */
  content: ''; position: absolute; inset: 28px -20px -1px -20px;
  border: 2px solid var(--brass); border-bottom: 0;
  clip-path: polygon(0 0, calc(100% - 64px) 0, 100% 64px, 100% 100%, 0 100%);
  opacity: 0.8; pointer-events: none;
}
.window {
  position: relative; background: var(--band); border-radius: 10px 10px 0 0; overflow: hidden;
  box-shadow: 0 -2px 0 var(--band), 0 30px 80px var(--shadow);
  border: 1px solid var(--shot-border);
}
.window .bar { height: 30px; background: var(--slate); display: flex; align-items: center; gap: 7px; padding: 0 14px; border-bottom: 1px solid #000; }
.window .bar b { width: 10px; height: 10px; border-radius: 50%; background: #3a4048; display: block; }
.window .bar span { margin-left: 10px; font: 500 0.72rem/1 var(--mono); color: var(--chalk-dim); }
.window img { width: 100%; height: auto; }
.shot-note { font: 500 0.72rem/1.4 var(--mono); color: var(--text-3); margin-top: 12px; }
.dark .shot-note { color: var(--chalk-dim); }

/* ---------- facts strip ---------- */
.facts { background: var(--band); color: var(--chalk); border-block: 1px solid var(--band-border); }
.facts ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); }
.facts li { padding: 26px 24px 26px 0; border-right: 1px solid #343a42; margin-right: 24px; }
.facts li:last-child { border-right: 0; margin-right: 0; }
.facts strong { display: block; font: 700 1.15rem/1.2 var(--display); font-stretch: 118%; color: var(--brass); margin-bottom: 4px; }
.facts span { font-size: 0.92rem; color: var(--chalk-dim); line-height: 1.45; display: block; }
@media (max-width: 820px) {
  .facts ul { grid-template-columns: 1fr 1fr; }
  .facts li { border-right: 0; margin-right: 0; border-bottom: 1px solid #343a42; }
}
@media (max-width: 480px) { .facts ul { grid-template-columns: 1fr; } }

/* ---------- sections ---------- */
section { padding: clamp(64px, 9vw, 120px) 0; }
section.dark { background: var(--band); color: var(--chalk); border-block: 1px solid var(--band-border); }
section.tint { background: var(--bg-2); border-block: 1px solid var(--rule); }
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.split.flip { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.split.flip .copy { order: 2; }
@media (max-width: 900px) {
  .split, .split.flip { grid-template-columns: 1fr; }
  .split.flip .copy { order: 0; }
}
.copy h2 { margin-bottom: 22px; }

.ticks { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 14px; }
.ticks li { padding-left: 30px; position: relative; }
.ticks li::before {
  content: ''; position: absolute; left: 0; top: 0.5em; width: 14px; height: 9px;
  border: 2px solid var(--accent); border-top: 0; border-right: 0; transform: rotate(-45deg) translateY(-4px);
}
.dark .ticks li::before { border-color: var(--brass); }
.ticks b { font-weight: 600; }
.dark .ticks b { color: #fff; }

.shot { border-radius: 8px; overflow: hidden; border: 1px solid var(--shot-border); box-shadow: 0 24px 60px var(--shadow); background: var(--band); }
.shot img { width: 100%; height: auto; }
.dark .shot { box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5); border-color: #3a4048; }

/* typed measurement chips */
.keys { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.keys code {
  font: 500 0.95rem/1 var(--mono); padding: 9px 12px; background: var(--band); color: var(--brass);
  border-radius: 4px; border: 1px solid var(--shot-border);
}
.keys-label { font: 500 0.78rem/1 var(--mono); color: var(--text-2); letter-spacing: 0.06em; text-transform: uppercase; margin-top: 28px; }

/* 2D pair */
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.pair .shot:nth-child(2) { margin-top: 36px; }
@media (max-width: 640px) { .pair { grid-template-columns: 1fr; } .pair .shot:nth-child(2) { margin-top: 0; } }

/* platforms */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 44px; }
@media (max-width: 860px) { .cards { grid-template-columns: 1fr; } }
.card { border: 1px solid var(--rule); background: var(--bg); border-radius: 8px; padding: 26px; display: flex; flex-direction: column; gap: 10px; }
.card .tag { align-self: flex-start; }
.card p { margin: 0; color: var(--text-2); font-size: 0.98rem; }
.tag { font: 500 0.7rem/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; padding: 5px 8px; border-radius: 3px; }
.tag.built { background: #1d3a2a; color: #9fe0b8; }
.tag.test { background: #43310f; color: #f1c987; }
.tag.next { background: #1f2e52; color: #a9c1f7; }
.tag.later { background: #2c3138; color: #b3b9c1; }
.section-head { max-width: 720px; }
.section-head .lede { margin-top: 18px; }

/* assistant mock */
.principle {
  font: 700 clamp(1.3rem, 2.4vw, 1.8rem)/1.2 var(--display); font-stretch: 118%; letter-spacing: -0.02em;
  color: var(--brass); margin: 0 0 18px;
}
.steps { display: grid; gap: 0; margin-top: 30px; counter-reset: s; }
.steps div { padding: 16px 0 16px 54px; border-top: 1px solid #343a42; position: relative; counter-increment: s; }
.steps div::before {
  content: counter(s); position: absolute; left: 0; top: 14px; width: 32px; height: 32px; border-radius: 50%;
  border: 1.5px solid var(--brass); color: var(--brass); font: 500 0.85rem/29px var(--mono); text-align: center;
}
.steps h3 { color: #fff; margin-bottom: 4px; }
.steps p { margin: 0; color: var(--chalk-dim); font-size: 0.96rem; }
.fine { font: 500 0.78rem/1.5 var(--mono); color: var(--chalk-dim); margin-top: 24px; max-width: 60ch; }

/* file format */
pre.code {
  margin: 28px 0 0; padding: 22px 24px; background: var(--band); color: var(--chalk); border-radius: 6px;
  font: 400 0.9rem/1.7 var(--mono); overflow-x: auto; border: 1px solid var(--shot-border);
}
pre.code .p { color: var(--brass); user-select: none; }
pre.code .c { color: #7d8691; }
.mini-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.mini-list li { display: grid; grid-template-columns: 10.5ch 1fr; gap: 18px; padding: 15px 0; border-top: 1px solid var(--rule); }
.mini-list li:last-child { border-bottom: 1px solid var(--rule); }
.mini-list b { font: 500 0.88rem/1.6 var(--mono); color: var(--accent-ink); }
.mini-list span { color: var(--text-2); }

/* roadmap */
.road { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 48px; }
@media (max-width: 980px) { .road { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .road { grid-template-columns: 1fr; } }
.col { border-top: 3px solid var(--brass); padding-top: 16px; }
.col.test { border-color: #f1c987; }
.col.next { border-color: #a9c1f7; }
.col.later { border-color: #6c7480; }
.col h3 { color: #fff; margin: 14px 0 12px; }
.col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; color: var(--chalk-dim); font-size: 0.95rem; line-height: 1.45; }
.col li { padding-left: 16px; position: relative; }
.col li::before { content: ''; position: absolute; left: 0; top: 0.62em; width: 6px; height: 2px; background: currentColor; opacity: 0.6; }

/* closing */
.closing { text-align: left; }
.closing h2 { max-width: 16ch; }
.closing .lede { margin-top: 20px; }

footer { background: var(--band); border-top: 1px solid var(--band-border); color: var(--chalk-dim); padding: 40px 0 48px; font-size: 0.9rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 20px 40px; justify-content: space-between; align-items: center; }
footer .brand { color: var(--chalk); }
footer a { color: var(--chalk); }
footer p { margin: 0; max-width: 60ch; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }

/* small screens */
.split > * { min-width: 0; }
@media (max-width: 640px) {
  .stage::before { inset: 22px -10px -1px -10px; }
  .hero { overflow-x: clip; }
}
@media (max-width: 640px) { .mini-list li { grid-template-columns: 1fr; gap: 4px; } }

/* ---------- marketing additions ---------- */
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 26px 0 0; padding: 0; }
.chips li {
  font: 500 0.78rem/1 var(--mono); letter-spacing: 0.04em; padding: 8px 12px; border-radius: 999px;
  border: 1px solid var(--accent); color: var(--accent-ink); background: var(--chip-bg);
}
.chips li::before { content: '\2715\00a0'; font-size: 0.7em; opacity: 0.75; }

.free-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 20px; margin-top: 48px; }
@media (max-width: 860px) { .free-grid { grid-template-columns: 1fr; } }
.free-card { border-radius: 8px; padding: 30px; }
.free-card h3 { margin-bottom: 18px; font-size: 1.25rem; }
.free-card.no { background: var(--band); color: var(--chalk); border: 1px solid var(--band-border); }
.free-card.no h3 { color: var(--brass); }
.nos, .yeses { list-style: none; margin: 0; padding: 0; display: grid; gap: 13px; }
.nos li { padding-left: 28px; position: relative; }
.nos li::before { content: '\2715'; position: absolute; left: 0; color: var(--brass); font-size: 0.9rem; top: 0.1em; }
.nos s { text-decoration-color: #8a919b; text-decoration-thickness: 1.5px; color: #c6cbd2; }
.free-card.yes { background: var(--bg-2); border: 1px solid var(--rule); }
.yeses li { padding-left: 28px; position: relative; }
.yeses li::before {
  content: ''; position: absolute; left: 0; top: 0.5em; width: 14px; height: 9px;
  border: 2px solid var(--accent); border-top: 0; border-right: 0; transform: rotate(-45deg) translateY(-4px);
}
.aside { margin-top: 34px; font-size: 0.98rem; color: var(--text-2); max-width: 70ch; }
.aside a { text-decoration-color: var(--accent); text-underline-offset: 3px; }

h3.big { font-size: clamp(1.4rem, 2.4vw, 1.9rem); margin-bottom: 16px; letter-spacing: -0.02em; }
.copy p { color: var(--text-2); }
.caveat { font: 500 0.8rem/1.5 var(--mono); color: var(--accent-ink) !important; border-left: 3px solid var(--accent); padding-left: 14px; margin-top: 20px; }
.pair-small { display: grid; gap: 16px; }
.pair-small .shot { box-shadow: 0 14px 36px var(--shadow); }

.tiles { list-style: none; margin: 72px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 2px solid var(--ink); }
.tiles li { padding: 22px 24px 8px 0; margin-right: 24px; border-right: 1px solid var(--rule); }
.tiles li:last-child { border-right: 0; margin-right: 0; }
.tiles b { display: block; font: 700 1.25rem/1.2 var(--display); font-stretch: 118%; letter-spacing: -0.02em; margin-bottom: 8px; color: var(--accent-ink); }
.tiles span { font-size: 0.95rem; color: var(--text-2); line-height: 1.5; display: block; }
@media (max-width: 860px) { .tiles { grid-template-columns: 1fr 1fr; } .tiles li { border-right: 0; margin-right: 0; border-bottom: 1px solid var(--rule); padding-bottom: 20px; } }
@media (max-width: 480px) { .tiles { grid-template-columns: 1fr; } }

.ticks.cols { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px 36px; margin-top: 44px; }
.section-head .keys { margin-top: 26px; }

.tinker-cards { display: grid; gap: 0; }
.tinker-cards div { padding: 18px 0 18px; border-top: 1px solid #343a42; }
.tinker-cards div:first-child { border-top: 2px solid var(--brass); }
.tinker-cards h3 { color: #fff; margin-bottom: 6px; }
.tinker-cards p { margin: 0; color: var(--chalk-dim); font-size: 0.97rem; }
.tinker-cards .mono { color: var(--brass); font-size: 0.9em; }
.dark pre.code { background: #0e1013; border-color: #343a42; margin-top: 0; }
.stack { list-style: none; margin: 56px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 32px; }
.stack li { display: grid; grid-template-columns: 7.5em 1fr; gap: 12px; padding: 14px 0; border-top: 1px solid #343a42; font-size: 0.93rem; }
.stack b { font: 500 0.8rem/1.7 var(--mono); color: var(--brass); letter-spacing: 0.04em; text-transform: uppercase; }
.stack span { color: var(--chalk-dim); }
@media (max-width: 900px) { .stack { grid-template-columns: 1fr; } }

.closing .cta { margin-top: 30px; }

/* language switch */
.nav-right { display: flex; align-items: center; gap: 12px; }
.lang {
  font: 500 0.74rem/1 var(--mono); letter-spacing: 0.08em; text-decoration: none; padding: 7px 9px;
  border: 1px solid var(--rule); border-radius: 4px; color: var(--text-2);
}
.lang:hover { border-color: var(--accent); color: var(--ink); }
footer p a { text-underline-offset: 3px; }
.stage .shot-note { margin-top: 14px; }

/* brand mark that follows the theme */
.brand .o, .hero-mark .o { stroke: var(--ink); }
.brand .i, .hero-mark .i { stroke: var(--accent); }
.hero-mark .d { stroke: var(--accent); }
.hero-mark .t { fill: var(--accent-ink); }

/* theme toggle (needs the small script; hidden without it) */
.theme-toggle {
  display: none; align-items: center; justify-content: center; width: 34px; height: 30px; padding: 0;
  background: transparent; color: var(--text-2); border: 1px solid var(--rule); border-radius: 4px; cursor: pointer;
}
.js .theme-toggle { display: inline-flex; }
.theme-toggle:hover { border-color: var(--accent); color: var(--ink); }
.theme-toggle svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.theme-toggle .sun { display: none; }
[data-theme='dark'] .theme-toggle .sun { display: block; }
[data-theme='dark'] .theme-toggle .moon { display: none; }
@media (max-width: 420px) { .nav-right { gap: 8px; } .pill { font-size: 0.68rem; padding: 6px 9px; } }