/* MechTribe public site. The same look as the /app redesign (mech-guide, 2026-11): calm white space, soft rounded
   cards, a Merriweather headline, Lato for everything else, Caveat for handwritten labels, grey sketch-line drawings
   and MechTribe orange as the only color. Tokens follow brands/mechtribe/theme.css. Fonts are self-hosted: fonts/. */
@font-face { font-family: "Merriweather"; font-weight: 300 900; font-display: swap; src: url("/fonts/merriweather-latin.woff2") format("woff2"); }
@font-face { font-family: "Lato"; font-weight: 400; font-display: swap; src: url("/fonts/lato-400-latin.woff2") format("woff2"); }
@font-face { font-family: "Lato"; font-weight: 700; font-display: swap; src: url("/fonts/lato-700-latin.woff2") format("woff2"); }
@font-face { font-family: "Caveat"; font-weight: 400 700; font-display: swap; src: url("/fonts/caveat-latin.woff2") format("woff2"); }

:root {
  --ink: #2b2b2b;
  --text: #444444;
  --muted: #6b6b6b;
  --paper: #f7f7f7;
  --surface: #ffffff;
  --surface-2: #f1f1f0;
  --line: #e6e6e6;
  --line-strong: #cfcfcf;
  --sketch: #4a4a4a;
  --sketch-light: #bdbdbd;
  --accent: #ff7a18;
  --accent-strong: #e8660a;
  --accent-text: #b5520c;
  --accent-tint: #fff1e6;
  --accent-ring: #ffd3b0;
  --on-accent: #1f1f1f;
  --dark: #2b2b2b;
  --dark-card: #333333;
  --st-done: #3f6b46; --st-done-bg: #eaf3ec;
  --st-prog: #2f5d7c; --st-prog-bg: #e7eff5;
  --font-serif: Merriweather, Georgia, "Times New Roman", serif;
  --font-sans: Lato, "Helvetica Neue", Arial, sans-serif;
  --font-hand: Caveat, "Segoe Print", "Comic Sans MS", cursive;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --pill: 999px;
  --shadow-soft: 0 12px 32px -14px rgba(0, 0, 0, .14);
  --shadow: 0 18px 40px -20px rgba(0, 0, 0, .22);
  --measure: 60ch;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body { margin: 0; background: var(--surface); color: var(--text); font: 400 17px/1.65 var(--font-sans); -webkit-font-smoothing: antialiased; overflow-x: clip; }
a { color: var(--accent-text); text-underline-offset: 3px; }
img, svg { max-width: 100%; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; box-shadow: 0 0 0 5px var(--accent-tint); }
h1, h2, h3, h4 { color: var(--ink); text-wrap: balance; }
p { text-wrap: pretty; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 640px) { .wrap { padding: 0 16px; } }
.muted { color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* handwritten labels: two or three words, never the only copy of a fact */
.hand { font-family: var(--font-hand); font-weight: 600; font-size: 28px; line-height: 1.1; color: var(--accent-text); }
.hand.ink { color: var(--ink); font-weight: 500; }
.hand.sm { font-size: 22px; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: var(--on-accent); border: 1px solid var(--accent); border-radius: var(--radius); padding: 13px 22px; font: 700 15px/1.2 var(--font-sans); text-decoration: none; cursor: pointer; white-space: nowrap; transition: background .2s, border-color .2s, box-shadow .2s; }
.btn:hover { background: var(--accent-strong); border-color: var(--accent-strong); color: var(--on-accent); }
.btn.ghost { background: var(--surface); color: var(--ink); border-color: var(--line-strong); }
.btn.ghost:hover { border-color: var(--ink); background: var(--surface); }
.btn.lg { padding: 16px 28px; font-size: 16px; }
.btn.sm { padding: 8px 14px; font-size: 14px; border-radius: var(--radius-sm); }
.btn:disabled { opacity: .5; cursor: default; }
.btn .ar { transition: transform .2s; }
.btn:hover .ar { transform: translateX(3px); }

/* nav */
.nav { position: sticky; top: 0; z-index: 30; background: rgba(255, 255, 255, .92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.nav-in { height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand .dot { width: 10px; height: 10px; border-radius: var(--pill); background: var(--accent); box-shadow: 0 0 0 4px var(--accent-tint); flex: none; }
.brand .wm { font: 400 22px/1 var(--font-serif); letter-spacing: -.01em; }
.brand .tag { font: 600 20px/1 var(--font-hand); color: var(--accent-text); margin-left: 4px; }
.nav-links { display: flex; gap: 28px; font-size: 15px; }
.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.nav .btn { padding: 10px 18px; font-size: 14px; }
@media (max-width: 860px) { .nav-links { display: none; } }
@media (max-width: 520px) { .brand .tag { display: none; } }

/* hero */
.hero { position: relative; padding: 88px 0 72px; }
.hero-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr)); gap: 56px; align-items: center; }
.hero h1 { font: 400 clamp(40px, 5.4vw, 66px)/1.12 var(--font-serif); letter-spacing: -.015em; margin: 10px 0 24px; }
.hero h1 em { font-style: normal; color: var(--ink); background: linear-gradient(transparent 62%, var(--accent-tint) 62%); }
.lede { font-size: 19px; line-height: 1.65; color: var(--text); max-width: 46ch; margin: 0 0 32px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
@media (max-width: 640px) { .hero { padding: 48px 0 56px; } .hero-grid { gap: 40px; } }

/* sections */
.block { padding: 104px 0; }
.block.paper { background: var(--paper); }
@media (max-width: 640px) { .block { padding: 72px 0; } }
.sec-head { display: grid; justify-items: center; text-align: center; gap: 8px; margin: 0 auto 56px; max-width: 720px; }
.sec-head h2 { font: 700 clamp(30px, 3.4vw, 40px)/1.18 var(--font-sans); margin: 0; letter-spacing: -.01em; }
.sec-head p { margin: 6px 0 0; font-size: 18px; color: var(--muted); }
.sec-head.left { justify-items: start; text-align: left; margin-left: 0; }
.note-line { font-size: 14px; color: var(--muted); }

/* cards */
.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); }
.g3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.card { background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-soft); padding: 28px; display: flex; flex-direction: column; gap: 10px; min-width: 0; transition: box-shadow .2s; }
.card.line { box-shadow: none; border: 1px solid var(--line); }
.card.line:hover { box-shadow: var(--shadow-soft); }
.card h3 { font: 700 21px/1.3 var(--font-sans); margin: 0; }
.card p { margin: 0; color: var(--text); font-size: 16px; }
.card .foot { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.card .foot b { color: var(--ink); }
.step-n { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: var(--pill); background: var(--accent-tint); color: var(--accent-text); font: 700 14px var(--font-sans); }
.tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }
.tags span { font-size: 13px; font-weight: 700; color: var(--muted); background: var(--surface-2); border-radius: var(--pill); padding: 4px 12px; }
.pill { display: inline-flex; align-items: center; border-radius: var(--pill); padding: 3px 10px; font: 700 12px/1.4 var(--font-sans); background: var(--accent-tint); color: var(--accent-text); white-space: nowrap; }
.pill.quiet { background: var(--surface-2); color: var(--muted); }
.checks { list-style: none; padding: 0; margin: 4px 0 0; display: grid; gap: 8px; }
.checks li { display: grid; grid-template-columns: 18px 1fr; gap: 10px; font-size: 15.5px; }
.checks li::before { content: ""; width: 8px; height: 8px; margin-top: 9px; border-radius: var(--pill); background: var(--accent); }

/* stat card */
.kpi { background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-soft); padding: 18px 20px; display: grid; gap: 2px; text-align: center; }
.kpi .val { font: 700 30px/1.15 var(--font-sans); color: var(--ink); font-variant-numeric: tabular-nums; }
.kpi .lbl { font-size: 13.5px; color: var(--muted); line-height: 1.4; }

/* annotation: a handwritten note with a sketched arrow */
.annot { display: inline-flex; align-items: center; gap: 6px; }
.annot svg { stroke: var(--sketch); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }

/* sketch drawings and charts */
.sketch .s { stroke: var(--sketch); fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.sketch .sl { stroke: var(--sketch-light); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.sketch .hot { stroke: var(--accent-strong); fill: none; stroke-width: 3.5; stroke-linecap: round; }
.sketch .area { fill: var(--accent-tint); stroke: none; }
.sketch .pt { fill: var(--surface); stroke: var(--sketch); stroke-width: 2.5; }
.sketch .pt.hot-pt { fill: var(--accent); stroke: none; }
.sketch .ring { fill: none; stroke: var(--accent-ring); stroke-width: 6; }
.sketch text { font: 700 14px var(--font-sans); fill: var(--ink); }
.sketch text.sub { font-weight: 400; font-size: 13px; fill: var(--muted); }
.sketch text.hand { font: 600 22px var(--font-hand); fill: var(--accent-text); }

/* closing call to action */
.closing { text-align: center; display: grid; justify-items: center; gap: 12px; }
.closing h2 { font: 400 clamp(34px, 4.6vw, 54px)/1.15 var(--font-serif); margin: 0 0 16px; max-width: 18ch; letter-spacing: -.01em; }
.closing .sub { font-size: 15px; color: var(--muted); margin-top: 6px; }

/* footer */
.foot { border-top: 1px solid var(--line); padding: 36px 0 44px; }
.foot-in { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; font-size: 14px; color: var(--muted); }
.foot-links { display: flex; gap: 22px; flex-wrap: wrap; }
.foot-links a { color: var(--muted); text-decoration: none; }
.foot-links a:hover { color: var(--ink); }

/* gentle reveal on scroll */
[data-reveal] { transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js-motion [data-reveal]:not(.in) { opacity: 0; transform: translateY(16px); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal], .btn .ar { transition: none !important; }
}