/* GuideLock homepage. Uses tokens.css. */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--night); }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 500 16px/1.5 var(--f-text); letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased; overflow-x: clip; }
a { color: inherit; }
img, svg, canvas { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--green) 60%, transparent); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--hl); color: var(--ink); }
.wrap { width: min(1360px, 100% - 48px); margin-inline: auto; }
@media (max-width: 640px) { .wrap { width: calc(100% - 32px); } }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: fixed; left: -999px; top: 10px; z-index: 100; background: var(--ink); color: var(--paper); padding: 10px 14px; border-radius: 10px; }
.skip:focus { left: 12px; }
.mono { font-family: var(--f-mono); letter-spacing: 0; }
.eyebrow { font: 600 14px/1 var(--f-text); color: var(--muted); letter-spacing: -0.01em; margin-bottom: 18px; display: flex; gap: 10px; align-items: center; }
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px var(--green-soft); }
.night .eyebrow { color: var(--on-night-2); }
.night .eyebrow::before { box-shadow: 0 0 0 4px rgba(62, 224, 143, 0.15); background: var(--green-glow); }

/* headings: words fade from muted to ink as they scroll in (site.js) */
.h-big { font: 650 clamp(40px, 6.2vw, 92px)/0.98 var(--f-display); letter-spacing: -0.045em; margin: 0; max-width: 16ch; text-wrap: balance; }
.h-mid { font: 650 clamp(32px, 4.2vw, 60px)/1.02 var(--f-display); letter-spacing: -0.04em; margin: 0; max-width: 20ch; text-wrap: balance; }
.reveal-words .w { color: color-mix(in srgb, currentColor 22%, transparent); transition: color .1s linear; }
.reveal-words .w.on { color: currentColor; }
.lede { font: 500 clamp(17px, 1.4vw, 21px)/1.45 var(--f-text); color: var(--ink-2); max-width: 46ch; letter-spacing: -0.015em; }
.night .lede { color: var(--on-night-2); }
section { position: relative; }
.pad { padding: clamp(90px, 13vw, 190px) 0; }

/* ---------------- buttons */
.pill { display: inline-flex; align-items: center; gap: 12px; height: 46px; padding: 0 8px 0 20px; border-radius: 999px;
  font: 600 13px/1 var(--f-text); letter-spacing: 0.04em; text-transform: uppercase; text-decoration: none; border: 0;
  background: var(--paper-2); color: var(--ink); transition: transform .5s var(--ease), background .3s; white-space: nowrap; }
.pill .dot { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--card); transition: transform .5s var(--ease); }
.pill:hover .dot { transform: rotate(45deg); }
.pill.dark { background: var(--ink); color: var(--paper); }
.pill.dark .dot { background: rgba(255, 255, 255, 0.12); }
.pill.green { background: var(--green); color: #fff; }
.pill.green .dot { background: rgba(255, 255, 255, 0.18); }
.pill:active { transform: scale(0.97); }
.pill.noarrow { padding: 0 20px; }
.night .pill:not(.dark):not(.green) { background: var(--night-3); color: var(--on-night); }
.night .pill:not(.dark):not(.green) .dot { background: rgba(255, 255, 255, 0.08); }

/* ---------------- nav */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; padding: 18px 0; transition: transform .6s var(--ease); pointer-events: none; }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.nav a, .nav button { pointer-events: auto; }
.nav.hide { transform: translateY(-110%); }
.logo { display: inline-flex; align-items: center; gap: 10px; font: 700 23px/1 var(--f-display); letter-spacing: -0.05em; text-decoration: none; color: var(--ink); }
.logo svg { width: 26px; height: 26px; color: var(--ink); }
.nav .logo { pointer-events: auto; padding: 8px 14px 8px 10px; margin-left: -10px; border-radius: 999px; transition: background .4s, backdrop-filter .4s; }
.nav.scrolled .logo { background: color-mix(in srgb, var(--paper-2) 82%, transparent); backdrop-filter: blur(12px); }
.nav .right { display: flex; gap: 8px; }
.nav .pill { height: 42px; backdrop-filter: blur(12px); background: color-mix(in srgb, var(--paper-2) 82%, transparent); }
.nav .pill.dark { background: var(--ink); }
.menu-btn .dots { display: inline-flex; gap: 3px; }
.menu-btn .dots i { width: 4px; height: 4px; border-radius: 50%; background: currentColor; }
@media (max-width: 640px) { .nav .hide-sm { display: none; } }
@media (max-width: 480px) { .nav .pill.dark { display: none; } }

/* full-screen menu */
.menu { position: fixed; inset: 0; z-index: 60; background: var(--night); color: var(--on-night); display: grid; grid-template-rows: auto 1fr auto;
  clip-path: inset(0 0 100% 0); transition: clip-path .8s var(--ease); visibility: hidden; }
.menu.open { clip-path: inset(0 0 0 0); visibility: visible; }
.menu .top { display: flex; justify-content: space-between; align-items: center; padding: 18px 0; }
.menu .logo { color: var(--on-night); }
.menu .logo svg { color: var(--on-night); }
.menu nav { display: grid; align-content: center; gap: 2px; }
.menu nav a { font: 650 clamp(38px, 6.4vw, 88px)/1.05 var(--f-display); letter-spacing: -0.045em; text-decoration: none; color: var(--on-night-2);
  transition: color .3s, transform .6s var(--ease); display: flex; align-items: baseline; gap: 18px; width: fit-content;
  transform: translateY(30px); opacity: 0; }
.menu.open nav a { transform: none; opacity: 1; }
.menu nav a span { font: 500 14px/1 var(--f-mono); color: var(--on-night-2); opacity: .6; }
.menu nav a:hover { color: var(--on-night); transform: translateX(10px); }
.menu .foot { display: flex; flex-wrap: wrap; gap: 28px; justify-content: space-between; padding: 26px 0 30px; border-top: 1px solid var(--night-line); color: var(--on-night-2); font-size: 14px; }
.menu .foot b { color: var(--on-night); font: 650 22px/1.1 var(--f-display); letter-spacing: -0.03em; display: block; }

/* ---------------- hero */
.hero { min-height: 100svh; padding-top: 96px; display: grid; grid-template-rows: auto 1fr auto; grid-template-columns: minmax(0, 1fr); overflow: hidden; }
.hero .stage { min-width: 0; }
.hero .intro { font: 500 clamp(16px, 1.25vw, 19px)/1.4 var(--f-text); max-width: 34ch; color: var(--ink); letter-spacing: -0.015em; margin-top: 18px; }
.hero .stage { position: relative; display: flex; align-items: center; min-height: 340px; }
.wordmark { font: 700 clamp(130px, 29.5vw, 560px)/0.8 var(--f-display); letter-spacing: -0.075em; margin: 0 0 0 -0.04em; white-space: nowrap;
  color: var(--ink); user-select: none; position: relative; z-index: 1; padding-bottom: 0.04em; }
.wordmark .ch { display: inline-block; transform: translateY(105%); }
.hero canvas.lock3d { position: absolute; z-index: 2; width: clamp(280px, 38vw, 700px); height: clamp(280px, 38vw, 700px); left: 47%; top: 50%;
  transform: translate(-50%, -52%); pointer-events: auto; cursor: grab; }
.hero .lockfallback { position: absolute; z-index: 2; left: 44%; top: 50%; transform: translate(-50%, -50%); width: 200px; color: var(--green); display: none; }
.hero .bottom { display: flex; justify-content: space-between; align-items: end; gap: 30px; padding-bottom: clamp(28px, 4vw, 54px); flex-wrap: wrap; }
.hero .tag { font: 650 clamp(30px, 3.6vw, 54px)/1.02 var(--f-display); letter-spacing: -0.04em; margin: 0; max-width: 17ch; }
.hero .scroll { font: 600 14px/1 var(--f-text); color: var(--muted); margin-bottom: 14px; display: flex; gap: 8px; align-items: center; }
.hero .scroll i { width: 1px; height: 28px; background: var(--line-2); position: relative; overflow: hidden; }
.hero .scroll i::after { content: ""; position: absolute; left: 0; top: -50%; width: 1px; height: 50%; background: var(--ink); animation: drip 1.8s var(--ease-in-out) infinite; }
@keyframes drip { to { top: 110%; } }
.hero .live { display: flex; gap: 26px; flex-wrap: wrap; }
.hero .live div { min-width: 120px; }
.hero .live b { display: block; font: 650 30px/1 var(--f-display); letter-spacing: -0.04em; }
.hero .live span { font-size: 13px; color: var(--muted); }
.hero .live .pulse { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--green); margin-right: 7px; vertical-align: 1px;
  box-shadow: 0 0 0 0 rgba(15, 159, 99, .5); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 9px rgba(15, 159, 99, 0); } 100% { box-shadow: 0 0 0 0 rgba(15, 159, 99, 0); } }
@media (max-width: 760px) { .hero canvas.lock3d { left: 62%; } .hero .stage { min-height: 260px; } }

/* ---------------- problem: stacking cards */
.stack { display: grid; gap: 0; margin-top: 56px; }
.stack .card { position: sticky; top: 90px; background: var(--paper-2); border-radius: var(--r-xl); padding: clamp(26px, 3.6vw, 48px);
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 30px; align-items: end; margin-bottom: 18px; min-height: 260px;
  box-shadow: 0 -10px 30px rgba(13, 20, 17, 0.05); transform-origin: center top; }
.stack .card:nth-child(2) { top: 108px; } .stack .card:nth-child(3) { top: 126px; } .stack .card:nth-child(4) { top: 144px; }
.stack .card h3 { font: 650 clamp(26px, 2.7vw, 40px)/1.05 var(--f-display); letter-spacing: -0.035em; margin: 0; max-width: 16ch; }
.stack .card .fig { font: 650 clamp(52px, 6.5vw, 96px)/0.9 var(--f-display); letter-spacing: -0.05em; }
.stack .card .fig small { font-size: 0.42em; letter-spacing: -0.03em; color: var(--ink-2); margin-left: 4px; }
.stack .card p { color: var(--ink-2); margin: 12px 0 10px; max-width: 42ch; }
.stack .card .src { font-size: 12.5px; color: var(--muted); }
.stack .card .src a { color: var(--muted); }
@media (max-width: 820px) { .stack .card { grid-template-columns: 1fr; } }

/* ---------------- four questions */
.q4 { display: grid; margin-top: 56px; gap: 14px; }
.q4 .row { display: grid; grid-template-columns: 70px 1fr 1.1fr; gap: 24px; padding: clamp(24px, 3vw, 40px); background: var(--card); border-radius: var(--r-lg);
  align-items: center; box-shadow: var(--shadow-1); }
.q4 .n { font: 500 14px/1 var(--f-mono); color: var(--muted); }
.q4 h3 { font: 650 clamp(24px, 2.4vw, 36px)/1.05 var(--f-display); letter-spacing: -0.035em; margin: 0; max-width: 15ch; }
.q4 .ans .k { font: 600 11.5px/1 var(--f-text); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.q4 .ans .v { font: 650 clamp(30px, 3.2vw, 48px)/1 var(--f-display); letter-spacing: -0.04em; margin: 10px 0 8px; }
.q4 .ans p { margin: 0; color: var(--ink-2); max-width: 46ch; }
@media (max-width: 820px) { .q4 .row { grid-template-columns: 1fr; gap: 10px; } }

/* ---------------- dark panels */
.night { background: var(--night); color: var(--on-night); }
.panel { border-radius: var(--r-xl); }

/* ---------------- live console */
.console { margin-top: 56px; display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.25fr); gap: 18px; }
@media (max-width: 980px) { .console { grid-template-columns: 1fr; } }
.c-in, .c-out { background: var(--night-2); border: 1px solid var(--night-line); border-radius: var(--r-lg); padding: 22px; }
.c-in label { font-size: 13px; color: var(--on-night-2); }
.c-in textarea { width: 100%; margin-top: 10px; min-height: 120px; resize: none; background: var(--night); color: var(--on-night); border: 1px solid var(--night-line);
  border-radius: var(--r-md); padding: 16px; font: 500 18px/1.4 var(--f-text); letter-spacing: -0.015em; }
.c-in textarea:focus { outline: none; border-color: color-mix(in srgb, var(--green-glow) 50%, transparent); }
.c-in .ex { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 18px; }
.c-in .ex button { border: 1px solid var(--night-line); background: transparent; color: var(--on-night-2); border-radius: 999px; padding: 8px 13px; font-size: 13.5px;
  transition: background .25s, color .25s, border-color .25s; text-align: left; }
.c-in .ex button:hover { background: var(--night-3); color: var(--on-night); }
.c-in .ex button b { font-weight: 600; color: var(--green-glow); margin-right: 6px; font-family: var(--f-mono); font-size: 11.5px; }
.c-in .ctl { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.c-in select { background: var(--night); color: var(--on-night); border: 1px solid var(--night-line); border-radius: 999px; height: 46px; padding: 0 16px; font: inherit; }
.c-in .note { font-size: 12.5px; color: var(--on-night-2); margin-top: 16px; line-height: 1.5; }
.rail { display: grid; gap: 2px; margin-top: 22px; }
.rail .st { display: grid; grid-template-columns: 22px 1fr auto; gap: 12px; align-items: center; padding: 9px 2px; color: var(--on-night-2); font-size: 14.5px;
  border-top: 1px solid var(--night-line); transition: color .4s; }
.rail .st:first-child { border-top: 0; }
.rail .st .ic { width: 18px; height: 18px; border-radius: 50%; border: 1.5px solid var(--night-line); display: grid; place-items: center; transition: all .4s var(--ease); }
.rail .st.on { color: var(--on-night); }
.rail .st.on .ic { border-color: var(--green-glow); background: var(--green-glow); }
.rail .st.on .ic::after { content: ""; width: 7px; height: 4px; border-left: 2px solid var(--night); border-bottom: 2px solid var(--night); transform: rotate(-45deg) translate(1px, -1px); }
.rail .st.busy .ic { border-color: var(--green-glow); border-top-color: transparent; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.rail .st .by { font: 500 11px/1 var(--f-mono); color: var(--on-night-2); padding: 4px 7px; border: 1px solid var(--night-line); border-radius: 6px; opacity: 0; transition: opacity .3s; }
.rail .st.on .by { opacity: 1; }
.rail .st .by.ai { color: #b9a6ff; border-color: rgba(185, 166, 255, .3); }
.rail .st .by.code { color: var(--green-glow); border-color: rgba(62, 224, 143, .3); }
.c-out { min-height: 520px; display: grid; align-content: start; gap: 14px; position: relative; }
.c-out .empty { color: var(--on-night-2); display: grid; place-items: center; text-align: center; min-height: 470px; font-size: 15px; }
.c-out .empty svg { width: 54px; margin: 0 auto 14px; color: var(--night-3); }
.passages { display: grid; gap: 8px; }
.passage { display: grid; grid-template-columns: 1fr 90px; gap: 12px; align-items: center; background: var(--night); border: 1px solid var(--night-line);
  border-radius: 12px; padding: 10px 12px; font-size: 13px; color: var(--on-night-2); opacity: 0; transform: translateY(8px); animation: rise .5s var(--ease) forwards; }
.passage b { color: var(--on-night); font-weight: 600; display: block; font-size: 13.5px; margin-bottom: 2px; }
.passage .bar { height: 5px; border-radius: 3px; background: var(--night-3); overflow: hidden; }
.passage .bar i { display: block; height: 100%; background: var(--green-glow); width: 0; transition: width .9s var(--ease); }
@keyframes rise { to { opacity: 1; transform: none; } }
.checks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 14px; }
.checks div { display: flex; gap: 8px; align-items: center; font-size: 13px; color: var(--on-night-2); opacity: 0; animation: rise .4s var(--ease) forwards; }
.checks div i { width: 16px; height: 16px; flex: none; border-radius: 5px; background: var(--green-glow); position: relative; }
.checks div i::after { content: ""; position: absolute; left: 4px; top: 4px; width: 7px; height: 4px; border-left: 2px solid var(--night); border-bottom: 2px solid var(--night); transform: rotate(-45deg); }
.checks div.x i { background: var(--red); }
.checks div.x i::after { border: 0; content: "×"; color: #fff; font: 700 13px/16px var(--f-text); left: 4px; top: 0; transform: none; }
.c-out h4 { font: 600 11.5px/1 var(--f-text); letter-spacing: 0.08em; text-transform: uppercase; color: var(--on-night-2); margin: 6px 0 2px; }

/* answer cards (used in console + feature cards) */
.ans-card { background: var(--card); color: var(--ink); border-radius: var(--r-md); padding: 18px; display: grid; gap: 12px; animation: rise .55s var(--ease) forwards; opacity: 0; }
.refer { border-radius: 14px; background: var(--red-soft); border: 1.5px solid color-mix(in srgb, var(--red) 55%, transparent); padding: 14px 16px; }
.refer .t { display: flex; align-items: center; gap: 8px; font: 700 13px/1 var(--f-text); letter-spacing: 0.08em; color: var(--red-ink); margin-bottom: 8px; }
.refer p { margin: 0; font-weight: 600; color: var(--ink); line-height: 1.45; }
.dose { border-radius: 14px; background: var(--green-soft); padding: 14px 16px; }
.dose .k { font-size: 12px; color: var(--green-ink); font-weight: 600; }
.dose .v { font: 650 22px/1.15 var(--f-display); letter-spacing: -0.03em; margin-top: 4px; }
.pts { margin: 0; padding-left: 18px; display: grid; gap: 8px; }
.msg { background: var(--card-2); border-radius: 12px; padding: 12px 14px; color: var(--ink-2); }
.chip { display: inline-flex; align-items: center; gap: 6px; font: 500 11.5px/1 var(--f-mono); color: var(--green-ink); background: var(--green-soft);
  padding: 5px 8px; border-radius: 7px; border: 0; cursor: pointer; text-decoration: none; vertical-align: 1px; white-space: nowrap; transition: transform .3s var(--ease); }
.chip:hover { transform: translateY(-1px); }
.chip svg { width: 12px; height: 12px; }
.ans-meta { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 10px; }
.ans-meta .ok { color: var(--green-ink); font-weight: 600; }
.ans-meta .bad { color: var(--amber-ink); font-weight: 600; }

/* page viewer modal */
.viewer { position: fixed; inset: 0; z-index: 70; display: grid; place-items: center; padding: 20px; background: rgba(10, 15, 13, 0.6); backdrop-filter: blur(6px);
  opacity: 0; pointer-events: none; transition: opacity .35s; }
.viewer.open { opacity: 1; pointer-events: auto; }
.viewer .box { width: min(820px, 100%); max-height: calc(100svh - 40px); background: var(--card); border-radius: var(--r-lg); overflow: hidden; display: grid;
  grid-template-rows: auto 1fr; transform: translateY(20px) scale(.98); transition: transform .5s var(--ease); }
.viewer.open .box { transform: none; }
.viewer .hd { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.viewer .hd b { font: 650 17px/1.2 var(--f-display); letter-spacing: -0.02em; display: block; }
.viewer .hd span { font-size: 13px; color: var(--muted); }
.viewer .bd { overflow: auto; background: var(--paper-2); padding: 18px; }
.viewer .bd img { margin: 0 auto; border-radius: 6px; box-shadow: var(--shadow-2); background: #fff; min-height: 300px; }
.viewer .x { width: 40px; height: 40px; border-radius: 50%; border: 0; background: var(--paper-2); display: grid; place-items: center; flex: none; }

/* ---------------- feature cards */
.feats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 56px; }
@media (max-width: 1050px) { .feats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 680px) { .feats { grid-template-columns: 1fr; } }
.feat { border-radius: var(--r-lg); padding: 22px; background: var(--paper-2); display: grid; grid-template-rows: 1fr auto; gap: 20px; min-height: 440px;
  transition: transform .6s var(--ease), box-shadow .6s var(--ease); }
.feat:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.feat.dk { background: var(--night); color: var(--on-night); }
.feat h3 { font: 650 26px/1.05 var(--f-display); letter-spacing: -0.035em; margin: 0 0 6px; }
.feat p { margin: 0; color: var(--ink-2); font-size: 14.5px; }
.feat.dk p { color: var(--on-night-2); }
.feat .demo { background: var(--card); border-radius: 16px; padding: 16px; font-size: 13.5px; overflow: hidden; position: relative; align-self: start; }
.feat.dk .demo { background: var(--night-2); border: 1px solid var(--night-line); }
.feat .k { font: 600 10.5px/1 var(--f-text); letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; display: block; }
.feat.dk .k { color: var(--on-night-2); }
.danger-type { font: 500 17px/1.45 var(--f-text); min-height: 76px; color: var(--on-night); }
.danger-type mark { background: transparent; color: #ff8c7e; box-shadow: inset 0 -0.42em 0 rgba(229, 64, 47, 0.35); border-radius: 2px; }
.danger-type .cur { display: inline-block; width: 2px; height: 1.1em; background: var(--green-glow); vertical-align: -3px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.danger-out { margin-top: 12px; display: flex; gap: 8px; align-items: center; font-size: 13px; color: var(--on-night-2); min-height: 30px; }
.danger-out .tagr { background: rgba(229, 64, 47, .16); color: #ff8c7e; font-weight: 700; letter-spacing: .06em; font-size: 11px; padding: 6px 9px; border-radius: 7px; }
.pagethumb { border-radius: 10px; overflow: hidden; background: #fff; box-shadow: var(--shadow-1); height: 250px; position: relative; }
.pagethumb img { width: 100%; transform-origin: 50% 30%; transition: transform 1.2s var(--ease); }
.feat:hover .pagethumb img { transform: scale(1.35); }
.dosebox .row2 { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.dosebox .row2 b { color: var(--ink); font: 650 20px/1 var(--f-display); letter-spacing: -0.03em; }
.dosebox input[type=range] { width: 100%; accent-color: var(--green); margin: 4px 0 14px; }
.dosebox .res { border-radius: 12px; background: var(--green-soft); padding: 12px 14px; min-height: 76px; transition: background .3s; }
.dosebox .res.ask { background: var(--card-2); }
.dosebox .res .v { font: 650 19px/1.15 var(--f-display); letter-spacing: -0.03em; }
.dosebox .res .s { font-size: 12px; color: var(--green-ink); margin-top: 4px; font-family: var(--f-mono); }
.dosebox .drugs { display: flex; gap: 6px; margin-bottom: 14px; }
.dosebox .drugs button { border: 1px solid var(--line-2); background: transparent; border-radius: 999px; padding: 6px 12px; font-size: 12.5px; }
.dosebox .drugs button[aria-pressed=true] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.langs .ln { display: grid; grid-template-columns: 70px 1fr; gap: 10px; padding: 9px 0; border-top: 1px solid var(--night-line); align-items: start; transition: opacity .5s; opacity: .35; }
.langs .ln:first-of-type { border-top: 0; }
.langs .ln.on { opacity: 1; }
.langs .ln .l { font: 600 11px/1.6 var(--f-mono); color: var(--green-glow); }
.langs .ln .q { color: var(--on-night); }
.langs .ln .e { color: var(--on-night-2); font-size: 12.5px; }
.note-mini { font-size: 11.5px; color: var(--ink-2); display: grid; gap: 7px; }
.note-mini .h { font: 700 15px/1 var(--f-display); color: var(--red-ink); letter-spacing: -0.02em; }
.note-mini .r { display: grid; grid-template-columns: 90px 1fr; gap: 8px; border-bottom: 1px solid var(--line); padding-bottom: 6px; }
.note-mini .r span:first-child { color: var(--muted); }
.note-mini blockquote { margin: 2px 0 0; border-left: 3px solid var(--red); background: var(--red-soft); padding: 8px 10px; border-radius: 0 8px 8px 0; color: var(--ink); }
.gaps-mini .g { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center; padding: 9px 0; border-top: 1px solid var(--line); font-size: 13px; }
.gaps-mini .g:first-of-type { border-top: 0; }
.flag { display: inline-flex; align-items: center; gap: 4px; font: 700 10.5px/1 var(--f-text); letter-spacing: 0.06em; padding: 5px 7px; border-radius: 6px; }
.flag.new { background: var(--red-soft); color: var(--red-ink); }
.flag.rising { background: var(--amber-soft); color: var(--amber-ink); }

/* ---------------- week simulation */
.sim { margin-top: 56px; background: var(--night); border-radius: var(--r-xl); padding: clamp(18px, 2.4vw, 30px); color: var(--on-night); }
.sim .top { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: center; margin-bottom: 18px; }
.stages { display: flex; gap: 6px; flex-wrap: wrap; }
.stages span { font: 600 11px/1 var(--f-text); letter-spacing: .1em; padding: 9px 12px; border-radius: 999px; border: 1px solid var(--night-line); color: var(--on-night-2); transition: all .4s; }
.stages span.on { background: var(--on-night); color: var(--night); border-color: var(--on-night); }
.sim .meta { font-size: 13px; color: var(--on-night-2); }
.sim .grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
@media (max-width: 900px) { .sim .grid { grid-template-columns: 1fr; } }
.feed { background: var(--night-2); border: 1px solid var(--night-line); border-radius: var(--r-md); padding: 14px; height: 470px; overflow: hidden; position: relative;
  mask-image: linear-gradient(to bottom, #000 78%, transparent); -webkit-mask-image: linear-gradient(to bottom, #000 78%, transparent); }
.feed .lbl, .bins .lbl { font-size: 12.5px; color: var(--on-night-2); margin-bottom: 10px; display: flex; justify-content: space-between; }
.feed .msgs { display: grid; gap: 8px; }
.fm { background: var(--night-3); border-radius: 12px; padding: 10px 12px; font-size: 14px; animation: drop .55s var(--ease); transform-origin: top; }
.fm .m { display: flex; gap: 8px; margin-top: 6px; font-size: 11.5px; color: var(--on-night-2); flex-wrap: wrap; }
.fm .m .lang { font-family: var(--f-mono); color: var(--green-glow); }
.fm.refer { box-shadow: inset 3px 0 0 var(--red); }
.fm.dose { box-shadow: inset 3px 0 0 var(--green-glow); }
.fm.not_covered { box-shadow: inset 3px 0 0 var(--amber); }
@keyframes drop { from { opacity: 0; transform: translateY(-14px) scale(.98); } }
.bins { background: var(--night-2); border: 1px solid var(--night-line); border-radius: var(--r-md); padding: 14px; display: grid; gap: 10px; align-content: start; }
.bin { display: grid; grid-template-columns: 1fr auto; gap: 6px 10px; align-items: center; padding: 12px 14px; background: var(--night-3); border-radius: 12px; border: 1px solid transparent;
  transition: border-color .4s, background .4s; }
.bin.hit { border-color: rgba(238, 242, 239, 0.35); }
.bin b { font: 650 28px/1 var(--f-display); letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.bin .nm { font-size: 14px; display: flex; gap: 8px; align-items: center; }
.bin .nm i { width: 9px; height: 9px; border-radius: 3px; }
.bin .tr { grid-column: 1 / -1; height: 4px; background: var(--night); border-radius: 2px; overflow: hidden; }
.bin .tr i { display: block; height: 100%; width: 0; transition: width .5s var(--ease); }
.report-out { margin-top: 4px; display: grid; gap: 8px; font-size: 13.5px; color: var(--on-night); }
.report-out .ln { display: flex; gap: 10px; align-items: flex-start; opacity: 0; animation: rise .5s var(--ease) forwards; }
.sim .controls { display: flex; gap: 8px; align-items: center; }
.sim .controls button { height: 42px; border-radius: 999px; border: 1px solid var(--night-line); background: var(--night-3); color: var(--on-night); padding: 0 16px;
  font: 600 13px/1 var(--f-text); display: inline-flex; align-items: center; gap: 8px; }
.sim .controls button.play { background: var(--green-glow); color: var(--night); border-color: transparent; }

/* ---------------- how it works: stacking dark cards */
.how { display: grid; margin-top: 56px; }
.how .card { position: sticky; top: 96px; background: var(--night); color: var(--on-night); border-radius: var(--r-xl); padding: clamp(28px, 4vw, 56px);
  min-height: min(560px, 74svh); display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-bottom: 22px; box-shadow: 0 -18px 40px rgba(0, 0, 0, .18); }
.how .card:nth-child(even) { background: var(--night-2); }
.how .card h3 { font: 650 clamp(44px, 6vw, 92px)/0.92 var(--f-display); letter-spacing: -0.05em; margin: 0; }
.how .card h3 span { display: block; color: var(--on-night-2); opacity: .55; }
.how .card .tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 24px; }
.how .card .tags span { font-size: 13px; border: 1px solid var(--night-line); border-radius: 999px; padding: 7px 12px; color: var(--on-night-2); }
.how .card .body { align-self: end; color: var(--on-night-2); font-size: 17px; max-width: 46ch; }
.how .card .body b { color: var(--on-night); }
.how .card .n { font: 500 14px/1 var(--f-mono); color: var(--on-night-2); margin-bottom: 28px; display: block; }
@media (max-width: 860px) { .how .card { grid-template-columns: 1fr; } }

/* code vs ai */
.cva { margin-top: 56px; border-radius: var(--r-xl); overflow: hidden; background: var(--card); box-shadow: var(--shadow-1); }
.cva .r { display: grid; grid-template-columns: 70px 1.05fr 1.3fr 1fr; border-top: 1px solid var(--line); }
.cva .r:first-child { border-top: 0; font: 600 11.5px/1 var(--f-text); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.cva .r > div { padding: 20px 22px; }
.cva .r > div:first-child { font: 500 14px/1.4 var(--f-mono); color: var(--muted); }
.cva .r h4 { margin: 0; font: 650 20px/1.15 var(--f-display); letter-spacing: -0.03em; }
.cva .r .code { color: var(--ink); }
.cva .r .ai { color: var(--muted); }
.cva .r .code::before, .cva .r .ai::before { display: none; }
.cva .r .tagc, .cva .r .taga { font: 600 10.5px/1 var(--f-mono); padding: 4px 6px; border-radius: 5px; margin-right: 8px; vertical-align: 2px; }
.cva .r .tagc { background: var(--green-soft); color: var(--green-ink); }
.cva .r .taga { background: #ece7ff; color: #5b43c9; }
@media (max-width: 860px) { .cva .r { grid-template-columns: 1fr; } .cva .r:first-child { display: none; } .cva .r > div { padding: 6px 20px; }
  .cva .r > div:first-child { padding-top: 20px; } .cva .r > div:last-child { padding-bottom: 20px; } }

/* results */
.results { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 44px; }
@media (max-width: 980px) { .results { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.res { background: var(--night-2); border: 1px solid var(--night-line); border-radius: var(--r-lg); padding: 22px; min-height: 180px; display: grid; align-content: space-between; }
.res .v { font: 650 clamp(40px, 4.4vw, 64px)/1 var(--f-display); letter-spacing: -0.05em; }
.res .l { color: var(--on-night-2); font-size: 14.5px; margin-top: 10px; }
.res .g { font: 500 11.5px/1 var(--f-mono); color: var(--green-glow); margin-top: 14px; display: flex; gap: 6px; align-items: center; }
.seg { display: inline-flex; background: var(--night-2); border: 1px solid var(--night-line); border-radius: 999px; padding: 4px; margin-top: 30px; }
.seg button { border: 0; background: transparent; color: var(--on-night-2); border-radius: 999px; padding: 10px 16px; font-size: 14px; transition: all .3s; }
.seg button[aria-pressed=true] { background: var(--on-night); color: var(--night); }

/* who */
.who { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 56px; }
@media (max-width: 1050px) { .who { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .who { grid-template-columns: 1fr; } }
.who .p { background: var(--card); border-radius: var(--r-lg); padding: 22px; display: grid; gap: 14px; align-content: start; box-shadow: var(--shadow-1); }
.who .p .role { font: 650 24px/1.05 var(--f-display); letter-spacing: -0.035em; }
.who .p .when { font-size: 14px; color: var(--muted); }
.who .p ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; font-size: 14px; color: var(--ink-2); border-top: 1px solid var(--line); padding-top: 14px; }
.who .p ol li { display: grid; grid-template-columns: 48px 1fr; gap: 8px; }
.who .p ol li span { font: 500 12px/1.6 var(--f-mono); color: var(--muted); }

/* data promises */
.promises { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; margin-top: 40px; border-top: 1px solid var(--night-line); }
.promises div { padding: 26px 26px 26px 0; border-bottom: 1px solid var(--night-line); display: grid; grid-template-columns: 34px 1fr; gap: 12px; font-size: 17px; color: var(--on-night-2); }
.promises div b { color: var(--on-night); display: block; font-weight: 600; margin-bottom: 4px; }
.promises svg { width: 22px; color: var(--green-glow); margin-top: 3px; }
@media (max-width: 760px) { .promises { grid-template-columns: 1fr; } }

/* steps + faq + cta + footer */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 56px; counter-reset: s; }
@media (max-width: 980px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.steps div { border-top: 2px solid var(--ink); padding-top: 18px; counter-increment: s; }
.steps div::before { content: counter(s, decimal-leading-zero); font: 500 13px/1 var(--f-mono); color: var(--muted); display: block; margin-bottom: 26px; }
.steps b { font: 650 22px/1.1 var(--f-display); letter-spacing: -0.03em; display: block; margin-bottom: 8px; }
.steps span { color: var(--ink-2); font-size: 15px; }
.faq { margin-top: 48px; border-top: 1px solid var(--line-2); max-width: 980px; }
.faq details { border-bottom: 1px solid var(--line-2); }
.faq summary { list-style: none; cursor: pointer; padding: 26px 0; display: flex; justify-content: space-between; gap: 20px; align-items: center;
  font: 650 clamp(20px, 2vw, 27px)/1.15 var(--f-display); letter-spacing: -0.03em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary i { width: 38px; height: 38px; border-radius: 50%; background: var(--paper-2); flex: none; position: relative; transition: transform .5s var(--ease), background .3s; }
.faq summary i::before, .faq summary i::after { content: ""; position: absolute; left: 50%; top: 50%; width: 13px; height: 2px; background: var(--ink); transform: translate(-50%, -50%); }
.faq summary i::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .5s var(--ease); }
.faq details[open] summary i { background: var(--ink); }
.faq details[open] summary i::before { background: var(--paper); }
.faq details[open] summary i::after { transform: translate(-50%, -50%) rotate(0); background: var(--paper); }
.faq .a { overflow: hidden; }
.faq .a p { margin: 0 0 26px; color: var(--ink-2); max-width: 70ch; font-size: 17px; }
.cta { text-align: left; }
.cta .h-big { max-width: 13ch; }
.cta .row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 34px; }
footer { background: var(--night); color: var(--on-night-2); padding: 70px 0 0; overflow: hidden; }
footer .cols { display: grid; grid-template-columns: 1.4fr repeat(3, minmax(0, 1fr)); gap: 30px; font-size: 14.5px; }
@media (max-width: 860px) { footer .cols { grid-template-columns: 1fr 1fr; } }
footer h5 { margin: 0 0 14px; color: var(--on-night); font: 600 14px/1 var(--f-text); }
footer a { color: var(--on-night-2); text-decoration: none; display: block; padding: 4px 0; transition: color .25s; }
footer a:hover { color: var(--on-night); }
footer .big { font: 700 clamp(90px, 22vw, 360px)/0.78 var(--f-display); letter-spacing: -0.075em; color: var(--night-3); margin: 60px 0 -0.06em -0.04em; white-space: nowrap; user-select: none; }

/* entrance */
.fade-up { opacity: 0; transform: translateY(28px); }
.no-motion .fade-up { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .fade-up { opacity: 1 !important; transform: none !important; } .wordmark .ch { transform: none !important; } }