/* Zeroness home. One column of quiet type; the product itself carries the page. */
:root {
  --ink: #17171A; --ink-2: #55534F; --ink-3: #85827C; --paper: #FBFAF7; --card: #FFFFFF; --line: #ECEAE5;
  --pill: #F2F0EB; --sel: #F4F2EE; --accent: #E2702B; --shadow: 0 1px 2px rgba(23,23,26,.05), 0 30px 80px rgba(23,23,26,.16);
  --f-ui: "Geist", ui-sans-serif, system-ui, -apple-system, sans-serif; --f-serif: "Instrument Serif", Georgia, serif; --f-mono: "Geist Mono", ui-monospace, Menlo, monospace;
  --ease: cubic-bezier(.2,.8,.2,1); --spring: cubic-bezier(.34,1.4,.64,1);
}
@media (prefers-color-scheme: dark) { :root {
  --ink: #F3F1ED; --ink-2: #B7B3AC; --ink-3: #8B8881; --paper: #111113; --card: #18181B; --line: #2A2A2E;
  --pill: #232327; --sel: #222225; --accent: #F08A45; --shadow: 0 1px 2px rgba(0,0,0,.4), 0 30px 80px rgba(0,0,0,.55); color-scheme: dark; } }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 var(--f-ui); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
a { color: inherit; }
::selection { background: color-mix(in srgb, var(--accent) 28%, transparent); }
.serif { font-family: var(--f-serif); font-weight: 400; letter-spacing: -0.02em; }
.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding-left: max(20px, env(safe-area-inset-left)); padding-right: max(20px, env(safe-area-inset-right)); }

/* Nav */
.nav { position: sticky; top: 0; z-index: 20; backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px); background: color-mix(in srgb, var(--paper) 78%, transparent); border-bottom: 1px solid transparent; transition: border-color .3s; }
.nav.scrolled { border-bottom-color: var(--line); }
.nav .wrap { display: flex; align-items: center; height: 60px; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; text-decoration: none; letter-spacing: -0.01em; }
.brand img { width: 26px; height: 26px; border-radius: 7px; }
.nav nav { display: flex; gap: 24px; font-size: 14px; color: var(--ink-2); margin-left: auto; }
.nav nav a { text-decoration: none; transition: color .2s; }
.nav nav a:hover { color: var(--ink); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 40px; padding: 0 18px; border-radius: 999px; border: 0; font: 600 14px var(--f-ui); text-decoration: none; cursor: pointer; transition: transform .25s var(--spring), box-shadow .25s; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: none; }
.btn-ink { background: var(--ink); color: var(--paper); }
.btn-quiet { color: var(--ink-2); padding: 0 6px; }
.kbd { font: 500 11.5px var(--f-mono); opacity: .55; }

/* Hero */
.hero { padding-top: 96px; text-align: center; }
.hero h1 { font-size: clamp(48px, 8.4vw, 104px); line-height: .98; margin: 0 auto; max-width: 11ch; text-wrap: balance; }
.hero h1 em { font-style: italic; color: var(--accent); }
.hero p.sub { margin: 22px auto 0; max-width: 40ch; font-size: 18px; color: var(--ink-2); text-wrap: balance; }
.hero .cta { margin-top: 30px; display: flex; gap: 10px; justify-content: center; align-items: center; flex-wrap: wrap; }
.hero .fine { margin-top: 14px; font-size: 13px; color: var(--ink-3); }

/* The live inbox over the dawn lake */
.stage { position: relative; margin: 72px auto 0; max-width: 1180px; padding: 0 max(12px, env(safe-area-inset-left)); }
.stage .sky { position: relative; border-radius: 28px; overflow: hidden; padding: 64px 56px 0; background: url(/hero.jpg) center 70% / cover; }
.stage .sky::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(255,255,255,0) 50%, rgba(251,250,247,.0) 100%); pointer-events: none; }
.win { position: relative; z-index: 1; margin: 0 auto; max-width: 980px; border-radius: 16px 16px 0 0; background: var(--card); box-shadow: var(--shadow), 0 0 0 1px color-mix(in srgb, var(--ink) 8%, transparent); overflow: hidden; text-align: left; }
.bar { height: 52px; display: flex; align-items: center; gap: 18px; padding: 0 18px; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.bar .dots { display: flex; gap: 6px; } .bar .dots i { width: 11px; height: 11px; border-radius: 50%; background: var(--line); }
.tabs { position: relative; display: flex; gap: 2px; }
.tabs span { position: relative; z-index: 1; padding: 6px 11px; border-radius: 8px; color: var(--ink-3); font-weight: 500; white-space: nowrap; }
.tabs span.on { color: var(--ink); font-weight: 600; background: var(--pill); }
.tabs span b { font-weight: 400; font-size: 12px; color: var(--ink-3); margin-left: 4px; font-variant-numeric: tabular-nums; }
.ask { margin-left: auto; display: flex; align-items: center; gap: 10px; height: 32px; padding: 0 8px 0 12px; border-radius: 9px; background: var(--pill); color: var(--ink-3); font-size: 13px; min-width: 0; }
.ask kbd { font: 500 11px var(--f-mono); color: var(--ink-2); background: var(--card); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px; }
.meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px 6px; font-size: 13px; color: var(--ink-2); flex-wrap: wrap; }
.meta b { color: var(--ink); font-weight: 600; }
.code { display: flex; align-items: center; gap: 10px; height: 34px; padding: 0 5px 0 12px; border-radius: 10px; background: var(--pill); font-size: 12px; color: var(--ink-2); }
.code b { font: 600 14px var(--f-mono); letter-spacing: .12em; color: var(--ink); }
.code i { font-style: normal; height: 24px; padding: 0 9px; border-radius: 7px; background: var(--ink); color: var(--paper); font-weight: 600; display: grid; place-items: center; }
.list { position: relative; list-style: none; margin: 0; padding: 4px 10px 22px; min-height: 352px; }
.hl { position: absolute; left: 10px; right: 10px; top: 4px; height: 40px; border-radius: 10px; background: var(--sel); transition: transform .32s var(--spring), opacity .25s; }
.row { position: relative; display: flex; align-items: center; gap: 12px; height: 40px; padding: 0 12px; font-size: 13.5px; transition: opacity .22s, transform .22s var(--ease); }
.row.out { opacity: 0; transform: translateX(-28px); }
.row .u { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.row .u.off { background: transparent; }
.row .who { width: 150px; flex-shrink: 0; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row .what { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row .what i { font-style: normal; color: var(--ink-3); }
.row .t { font-size: 11.5px; color: var(--ink-3); letter-spacing: .04em; font-variant-numeric: tabular-nums; }
.lbl { font-size: 10.5px; font-weight: 600; border-radius: 4px; padding: 2px 5px 1px; margin-right: 7px; }
.reply { font-size: 11px; font-weight: 600; color: var(--paper); background: var(--ink); border-radius: 999px; padding: 2px 8px; flex-shrink: 0; }
.zero { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; opacity: 0; transition: opacity .8s var(--ease); pointer-events: none; }
.zero.on { opacity: 1; }
.zero div { font-family: var(--f-serif); font-size: 44px; letter-spacing: -0.02em; }
.zero small { display: block; font: 14px var(--f-ui); color: var(--ink-3); margin-top: 6px; letter-spacing: 0; }
.keyhint { position: absolute; z-index: 2; right: 20px; bottom: 20px; display: flex; gap: 8px; align-items: center; padding: 8px 10px 8px 14px; border-radius: 14px; background: color-mix(in srgb, var(--card) 80%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 8px 24px rgba(23,23,26,.12), 0 0 0 1px var(--line); font-size: 12.5px; color: var(--ink-2); }
.cap { min-width: 30px; height: 30px; padding: 0 8px; border-radius: 8px; display: grid; place-items: center; font: 600 13px var(--f-mono); color: var(--ink); background: var(--card); box-shadow: 0 0 0 1px var(--line), 0 2px 0 var(--line); transition: transform .1s, box-shadow .1s, background-color .2s; }
.cap.down { transform: translateY(2px); box-shadow: 0 0 0 1px var(--line), 0 0 0 var(--line); background: var(--sel); }

/* Sections */
section.block { padding-top: 140px; }
.kicker { font-size: 13px; font-weight: 600; color: var(--ink-3); letter-spacing: .02em; }
h2 { font-size: clamp(36px, 5vw, 60px); line-height: 1.02; margin: 12px 0 0; max-width: 16ch; text-wrap: balance; }
.lead { margin: 18px 0 0; font-size: 17px; color: var(--ink-2); max-width: 52ch; }

/* Feature trio with live vignettes */
.trio { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 56px; }
.feat { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.vig { position: relative; height: 230px; border-radius: 18px; background: var(--card); box-shadow: 0 0 0 1px var(--line); overflow: hidden; padding: 18px; font-size: 13px; }
.feat h3 { margin: 0; font-size: 17px; letter-spacing: -0.01em; }
.feat p { margin: 4px 0 0; font-size: 15px; color: var(--ink-2); }

/* Vignette: splits */
.v-split .tabsm { display: flex; gap: 4px; margin-bottom: 12px; font-size: 12.5px; }
.v-split .tabsm span { padding: 4px 9px; border-radius: 7px; color: var(--ink-3); transition: background-color .3s, color .3s; }
.v-split .tabsm span.on { background: var(--pill); color: var(--ink); font-weight: 600; }
.v-split .mrow { display: flex; gap: 10px; align-items: center; height: 32px; border-bottom: 1px solid var(--line); transition: opacity .35s, transform .35s var(--ease); }
.v-split .mrow b { width: 92px; font-weight: 600; flex-shrink: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.v-split .mrow span { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--ink-2); }
.v-split .mrow.hide { opacity: 0; transform: translateY(-6px); }

/* Vignette: draft */
.v-draft .msg { color: var(--ink-2); line-height: 1.5; }
.v-draft .msg b { color: var(--ink); font-weight: 600; }
.v-draft .card { margin-top: 12px; border-radius: 12px; box-shadow: 0 0 0 1px var(--line), 0 8px 22px rgba(23,23,26,.06); padding: 10px 12px; }
.v-draft .card .h { display: flex; align-items: center; gap: 6px; font-size: 11.5px; font-weight: 600; }
.v-draft .card .h::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.v-draft .card .h span { font-weight: 400; color: var(--ink-3); }
.v-draft .typed { margin-top: 6px; line-height: 1.5; min-height: 60px; }
.v-draft .typed::after { content: ""; display: inline-block; width: 1.5px; height: 14px; background: var(--accent); vertical-align: -2px; margin-left: 1px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Vignette: ask */
.v-ask .q { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 12px; box-shadow: 0 0 0 1px var(--line); font-size: 13.5px; }
.v-ask .q .bar2 { width: 2px; height: 18px; border-radius: 2px; background: var(--accent); flex-shrink: 0; }
.v-ask .q span { min-width: 0; }
.v-ask .plan { margin-top: 12px; padding: 12px; border-radius: 12px; background: var(--pill); opacity: 0; transform: translateY(6px); transition: opacity .4s var(--ease), transform .4s var(--ease); }
.v-ask .plan.on { opacity: 1; transform: none; }
.v-ask .plan small { color: var(--ink-3); font-size: 11.5px; }
.v-ask .plan div { font-weight: 600; margin-top: 2px; }
.v-ask .plan em { font-style: normal; display: inline-block; margin-top: 10px; padding: 4px 12px; border-radius: 999px; background: var(--ink); color: var(--paper); font-size: 12px; font-weight: 600; }

/* Feature grid */
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin-top: 64px; border-top: 1px solid var(--line); }
.grid > div { padding: 28px 28px 30px 0; border-bottom: 1px solid var(--line); }
.grid > div:not(:nth-child(3n+1)) { padding-left: 28px; border-left: 1px solid var(--line); }
.grid h3 { margin: 0 0 6px; font-size: 16px; letter-spacing: -0.01em; display: flex; align-items: center; gap: 10px; }
.grid p { margin: 0; font-size: 14.5px; color: var(--ink-2); }
.grid .k { font: 500 11px var(--f-mono); color: var(--ink-2); border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px; }

/* Keyboard band */
.keys { margin-top: 56px; display: flex; flex-wrap: wrap; gap: 12px; }
.key { display: flex; align-items: center; gap: 12px; padding: 10px 16px 10px 10px; border-radius: 14px; background: var(--card); box-shadow: 0 0 0 1px var(--line); font-size: 14px; color: var(--ink-2); }
.key .cap { min-width: 36px; height: 36px; font-size: 14px; }

/* Zero band */
.night { position: relative; margin-top: 140px; border-radius: 28px; overflow: hidden; min-height: 520px; display: flex; align-items: flex-end; background: url(/zero-night.jpg) center / cover; color: #fff; }
.night::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0) 35%, rgba(0,0,0,.45)); }
.night .in { position: relative; padding: 48px; display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; width: 100%; flex-wrap: wrap; }
.night h2 { color: #fff; max-width: 12ch; }
.night p { margin: 12px 0 0; color: rgba(255,255,255,.88); max-width: 40ch; }

/* Privacy */
.privacy { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 56px; align-items: start; }
.privacy ul { list-style: none; margin: 0; padding: 0; }
.privacy li { padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 15px; color: var(--ink-2); }
.privacy li b { display: block; color: var(--ink); font-weight: 600; margin-bottom: 2px; }

/* Pricing */
.prices { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 56px; }
.price { border-radius: 20px; padding: 26px; background: var(--card); box-shadow: 0 0 0 1px var(--line); display: flex; flex-direction: column; gap: 6px; }
.price.main { box-shadow: 0 0 0 1.5px var(--ink); }
.price h3 { margin: 0; font-size: 15px; }
.price .n { font-family: var(--f-serif); font-size: 52px; line-height: 1; margin-top: 10px; letter-spacing: -0.02em; }
.price .n small { font: 15px var(--f-ui); color: var(--ink-3); letter-spacing: 0; }
.price p { margin: 8px 0 0; font-size: 14.5px; color: var(--ink-2); }

/* FAQ */
.faq { margin-top: 48px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 22px 0; font-size: 17px; font-weight: 500; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-weight: 400; color: var(--ink-3); transition: transform .3s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { margin: -6px 0 22px; color: var(--ink-2); max-width: 62ch; }

/* Closing */
.close { padding-top: 160px; padding-bottom: 120px; text-align: center; }
.close h2 { margin: 0 auto; max-width: 14ch; }
.close .btn { margin-top: 30px; height: 46px; padding: 0 22px; font-size: 15px; }
footer { border-top: 1px solid var(--line); }
footer .wrap { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; padding-top: 26px; padding-bottom: 48px; font-size: 13.5px; color: var(--ink-3); }
footer a { text-decoration: none; margin-left: 20px; }
footer a:hover { color: var(--ink); }

/* Reveal on scroll: visible at rest, lifted in when observed */
.rise { transition: opacity .9s var(--ease), transform .9s var(--ease); }
.js .rise:not(.seen) { opacity: 0; transform: translateY(18px); }

@media (max-width: 900px) {
  .trio, .prices { grid-template-columns: minmax(0, 1fr); }
  .grid { grid-template-columns: minmax(0, 1fr); }
  .grid > div, .grid > div:not(:nth-child(3n+1)) { padding: 24px 0; border-left: 0; }
  .privacy { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .stage .sky { padding: 28px 14px 0; border-radius: 20px; }
  .row .who { width: 96px; } .row .what i, .ask span, .tabs span:nth-child(n+3), .keyhint { display: none; }
  .night .in { padding: 28px; }
  .nav nav a:not(:last-child) { display: none; }
}
@media (max-width: 600px) { .row .lbl, .row .reply { display: none; } .row .who { width: 92px; } .code { font-size: 11px; } section.block { padding-top: 104px; } .hero { padding-top: 64px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition-duration: .01ms !important; animation: none !important; } .js .rise:not(.seen) { opacity: 1; transform: none; } }

/* Content pages */
.doc { max-width: 760px; padding-top: 88px; padding-bottom: 40px; }
.doc h1 { font-size: clamp(44px, 6.4vw, 76px); line-height: 1; margin: 12px 0 0; text-wrap: balance; }
.doc .intro { margin: 20px 0 0; font-size: 18px; color: var(--ink-2); }
.doc h2 { font-family: var(--f-ui); font-size: 22px; letter-spacing: -0.01em; line-height: 1.3; margin: 56px 0 10px; max-width: none; }
.doc h3 { font-size: 17px; margin: 28px 0 6px; }
.doc p, .doc li { color: var(--ink-2); font-size: 16px; }
.doc p { margin: 0 0 14px; }
.doc ul, .doc ol { padding-left: 20px; margin: 0 0 14px; }
.doc li { margin-bottom: 8px; }
.doc strong { color: var(--ink); font-weight: 600; }
.doc .meta-line { font-size: 13px; color: var(--ink-3); margin-top: 14px; }
.tbl { margin: 24px 0; border: 1px solid var(--line); border-radius: 16px; overflow-x: auto; }
.tbl table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 520px; }
.tbl th, .tbl td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl th { font-weight: 600; color: var(--ink); background: var(--pill); }
.tbl td:first-child { color: var(--ink); font-weight: 500; }
.tbl td { color: var(--ink-2); }
.note-box { margin: 28px 0; padding: 18px 20px; border-radius: 16px; background: var(--pill); font-size: 15px; color: var(--ink-2); }
.doc .cta-row { margin-top: 40px; display: flex; gap: 10px; flex-wrap: wrap; }