/* botkeep.app — tokens from DESIGN.md. Dark first; light follows the system. */
:root {
  --bg: #0B0D10;
  --surface: #12151A;
  --surface-2: #181C22;
  --border: #252A33;
  --text: #E8EAED;
  --muted: #9BA3AF;
  --keep: #3DDC97;
  --keep-ink: #04140D;
  --keep-text: #3DDC97;   /* keep green used as text */
  --keep-dot: #3DDC97;
  --warn: #F5B841;
  --warn-text: #F5B841;
  --info: #7AA7FF;
  --terminal: #07080A;
  --terminal-text: #E8EAED;
  --terminal-muted: #9BA3AF;

  --sans: Geist, Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --container: 1120px;
  --gutter: 16px;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #FAFAF9;
    --surface: #FFFFFF;
    --surface-2: #F3F4F2;
    --border: #E4E6E3;
    --text: #111418;
    --muted: #5B636E;
    /* #0E9F63 is the light keep token; on white it is 3.4:1, so filled buttons
       and green text use a deeper step to keep text contrast >= 4.5:1. */
    --keep: #0A7A4B;
    --keep-ink: #FFFFFF;
    --keep-text: #087244;
    --keep-dot: #0E9F63;
    --warn-text: #8A5A00;
    --info: #2556C9;
    color-scheme: light;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
h1, h2, h3, p, ul, ol, figure, pre { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: var(--info); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
code, kbd, pre, .mono { font-family: var(--mono); }
code, kbd { font-size: 0.875em; }
p code, li code, h3 code {
  padding: 1px 5px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface-2);
}
kbd {
  padding: 1px 6px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: var(--r-sm);
  background: var(--surface-2);
}
:focus-visible {
  outline: 2px solid var(--keep-dot);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}
[hidden] { display: none !important; }
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%);
  white-space: nowrap;
}
.skip {
  position: absolute; left: 16px; top: -48px; z-index: 20;
  padding: 8px 12px; border-radius: var(--r-md);
  background: var(--keep); color: var(--keep-ink); font-weight: 600;
}
.skip:focus { top: 12px; }

.container {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--gutter));
  margin: 0 auto;
  padding: 0 var(--gutter);
}
@media (min-width: 768px) { :root { --gutter: 32px; } }

.icon { width: 16px; height: 16px; flex: none; }
.icon--lg { width: 20px; height: 20px; }
.t-muted { color: var(--muted); }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav__inner { display: flex; align-items: center; gap: 24px; height: 60px; }
.nav__links { display: none; gap: 24px; margin-left: auto; }
.nav__links a { color: var(--muted); font-size: 14px; }
.nav__links a:hover { color: var(--text); text-decoration: none; }
.nav .btn { margin-left: auto; }
@media (min-width: 768px) { .nav__links { display: flex; } .nav .btn { margin-left: 0; } }

.brand { display: inline-flex; align-items: center; gap: 8px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand__glyph { width: 22px; height: 22px; color: var(--keep-dot); }
.brand__word { font-weight: 600; font-size: 18px; letter-spacing: -0.02em; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 18px;
  border: 1px solid var(--border); border-radius: var(--r-md);
  font: 500 15px/1 var(--sans); cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.btn:hover { text-decoration: none; }
.btn--sm { min-height: 36px; padding: 0 12px; font-size: 14px; }
.btn--primary { background: var(--keep); border-color: var(--keep); color: var(--keep-ink); font-weight: 600; }
.btn--primary:hover { background: color-mix(in srgb, var(--keep) 88%, var(--text)); }
.btn--ghost { background: transparent; color: var(--text); }
.btn--ghost:hover { background: var(--surface-2); }
.btn[disabled] { opacity: .6; cursor: progress; }

/* Chips & status */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 4px 12px; border: 1px solid var(--border); border-radius: 999px;
  color: var(--muted); font-size: 13px; font-weight: 500;
}
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex: none; }
.dot--live { background: var(--keep-dot); animation: pulse 1.6s ease-in-out infinite; }
.dot--warn { background: var(--warn); }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--keep-dot) 55%, transparent); }
  50% { box-shadow: 0 0 0 4px color-mix(in srgb, var(--keep-dot) 0%, transparent); }
}

/* Hero */
.hero { padding: 56px 0 40px; }
.hero__title {
  max-width: 880px; margin-top: 20px;
  font-size: clamp(36px, 7vw, 56px); font-weight: 600; line-height: 1.05; letter-spacing: -0.03em;
  text-wrap: balance;
}
.hero__lead { max-width: 660px; margin-top: 20px; color: var(--muted); font-size: 18px; text-wrap: pretty; }
.hero__note { margin-top: 10px; color: var(--muted); font-size: 13px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
@media (min-width: 768px) { .hero { padding: 96px 0 56px; } }

/* Install box */
.install {
  display: flex; align-items: center; gap: 12px;
  max-width: 640px; margin-top: 32px; padding: 6px 6px 6px 16px;
  border: 1px solid var(--border); border-radius: var(--r-md);
  background: var(--terminal); color: var(--terminal-text);
  font-family: var(--mono); font-size: 14px;
}
.install__prompt { color: var(--terminal-muted); user-select: none; }
.install__cmd {
  flex: 1; min-width: 0; overflow-x: auto; white-space: nowrap;
  padding: 8px 0; font-size: 14px; scrollbar-width: thin;
}
.install__copy {
  display: inline-flex; align-items: center; gap: 6px; flex: none;
  min-height: 36px; padding: 0 12px;
  border: 1px solid #252A33; border-radius: var(--r-sm);
  background: #181C22; color: #E8EAED; font: 500 13px/1 var(--sans); cursor: pointer;
}
.install__copy:hover { border-color: #3A404B; }
.install__copy.is-copied { color: #3DDC97; }
.install--block { margin-top: 0; max-width: none; }

/* Product */
.product { padding: 8px 0 24px; }
.product__grid { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 960px) { .product__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); } }
.product__caption { margin-top: 12px; color: var(--muted); font-size: 13px; }

.panel { border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden; background: var(--surface); min-width: 0; }
.panel__bar {
  display: flex; align-items: center; gap: 12px; height: 36px; padding: 0 14px;
  border-bottom: 1px solid var(--border); background: var(--surface);
}
.panel__dots { display: inline-flex; gap: 6px; }
.panel__dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.panel__title { color: var(--muted); font: 500 12px/1 var(--mono); }

.terminal { background: var(--terminal); }
.terminal .panel__bar { background: var(--terminal); border-color: #1B1F26; }
.terminal__body {
  padding: 16px; overflow-x: auto;
  background: var(--terminal); color: var(--terminal-text);
  font: 13px/1.65 var(--mono); tab-size: 2;
}
.terminal--small { margin: 12px 0 16px; border-radius: var(--r-lg); border: 1px solid var(--border); }
.t-p { color: var(--terminal-muted); }
.t-m { color: var(--terminal-muted); }
.t-ok { color: #3DDC97; }
.t-w { color: #F5B841; }
.t-h { color: #7AA7FF; }
.t-cursor {
  display: inline-block; width: 8px; height: 15px; vertical-align: -2px;
  background: var(--terminal-text); animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* Chat mock */
.chat__body { display: grid; grid-template-columns: minmax(0, 1fr); min-height: 100%; }
@media (min-width: 560px) { .chat__body { grid-template-columns: 168px minmax(0, 1fr); } }
.chat__rail { display: flex; gap: 4px; padding: 8px; border-bottom: 1px solid var(--border); overflow-x: auto; }
@media (min-width: 560px) { .chat__rail { flex-direction: column; border-bottom: 0; border-right: 1px solid var(--border); overflow: visible; } }
.chat__rail li {
  display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; column-gap: 8px;
  align-items: center; padding: 8px; border-radius: var(--r-md); min-width: 128px;
}
.chat__rail li.is-active { background: var(--surface-2); }
.avatar {
  grid-row: span 2; display: grid; place-items: center; width: 28px; height: 28px;
  border: 1px solid var(--border); border-radius: var(--r-md); background: var(--bg);
  font: 600 12px/1 var(--sans); color: var(--text);
}
.rail__name { font-size: 14px; font-weight: 500; line-height: 1.2; }
.status { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font: 500 12px/1.3 var(--sans); }
.status--working { color: var(--keep-text); }
.status--queued { color: var(--warn-text); }
.chat__conv { display: flex; flex-direction: column; min-width: 0; }
.chat__head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 16px; border-bottom: 1px solid var(--border); font-size: 14px;
}
.chat__head .status { padding: 3px 10px; border: 1px solid var(--border); border-radius: 999px; }
.chat__log { display: flex; flex-direction: column; gap: 10px; padding: 16px; font-size: 14px; line-height: 1.5; flex: 1; }
.bubble--op {
  align-self: flex-end; max-width: 85%;
  padding: 10px 14px; border-radius: var(--r-lg); background: var(--surface-2);
}
.bubble--bot { max-width: 100%; }
.activity { color: var(--muted); font-size: 12.5px; overflow-wrap: anywhere; }
.syschip {
  align-self: center; padding: 4px 12px; border: 1px solid var(--border); border-radius: 999px;
  color: var(--muted); font-size: 12px; text-align: center;
}
.mailcard {
  padding: 10px 14px; border: 1px solid var(--border); border-left: 3px solid var(--info);
  border-radius: var(--r-md); background: var(--bg); font-size: 13px;
}
.mailcard__label { color: var(--info); font-size: 11.5px; margin-bottom: 4px; }
.mailcard__meta { overflow-wrap: anywhere; }
.chat__composer {
  display: flex; align-items: center; justify-content: space-between;
  margin: 0 16px 16px; padding: 8px 8px 8px 14px;
  border: 1px solid var(--border); border-radius: var(--r-md); color: var(--muted); font-size: 14px;
}
.chat__composer .kbd {
  padding: 6px 10px; border: 1px solid var(--border); border-radius: var(--r-sm);
  color: var(--text); font-size: 12px; font-weight: 500;
}

/* Sections */
.section { padding: 72px 0; border-top: 1px solid var(--border); }
.product + .section { margin-top: 48px; }
@media (min-width: 768px) { .section { padding: 104px 0; } }
.section__head { max-width: 720px; margin-bottom: 40px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--keep-text); font: 500 13px/1.4 var(--mono); letter-spacing: 0.02em;
}
.section h2 {
  margin-top: 12px;
  font-size: clamp(28px, 4.4vw, 40px); font-weight: 600; line-height: 1.12; letter-spacing: -0.025em;
  text-wrap: balance;
}
.section__lead { margin-top: 14px; color: var(--muted); font-size: 17px; text-wrap: pretty; }

.card { border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); }
.card h3 { margin-top: 14px; font-size: 17px; font-weight: 600; letter-spacing: -0.01em; }
.card p { margin-top: 8px; color: var(--muted); font-size: 15px; }
.card > .icon { color: var(--text); }

.steps { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 860px) { .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.step { position: relative; padding: 24px; }
.step__n { position: absolute; top: 22px; right: 24px; color: var(--muted); font-size: 12px; }

.diagram { margin-top: 16px; padding: 20px 24px; overflow-x: auto; background: var(--terminal); }
.diagram pre { color: var(--terminal-text); font-size: 13px; line-height: 1.7; }

.features { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) { .features { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 960px) { .features { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.feature { padding: 24px; }

/* Self-host */
.selfhost { display: grid; gap: 40px; grid-template-columns: minmax(0, 1fr); align-items: start; }
@media (min-width: 960px) { .selfhost { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; } }
.checks { display: grid; gap: 12px; margin-top: 24px; }
.checks li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; }
.checks .icon { margin-top: 4px; color: var(--keep-text); }
.selfhost__code { min-width: 0; }

/* Hosted / waitlist */
.hosted { display: grid; gap: 32px; padding: 24px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 860px) { .hosted { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; padding: 40px; } }
.hosted h2 { margin-top: 12px; }
.form { display: grid; gap: 16px; align-content: start; }
.field { display: grid; gap: 6px; }
.field label { font-size: 14px; font-weight: 500; }
.field input, .field textarea {
  width: 100%; padding: 11px 12px;
  border: 1px solid var(--border); border-radius: var(--r-md);
  background: var(--bg); color: var(--text);
  font: 400 15px/1.4 var(--sans);
}
.field textarea { resize: vertical; min-height: 88px; }
.field input::placeholder, .field textarea::placeholder { color: var(--muted); }
.field input:focus-visible, .field textarea:focus-visible { outline-offset: 0; border-color: var(--keep-dot); }
.field [aria-invalid="true"] { border-color: #F2555A; }
.field__error { color: #F2555A; font-size: 13px; }
@media (prefers-color-scheme: light) {
  .field [aria-invalid="true"] { border-color: #C42B30; }
  .field__error { color: #B3262B; }
}
.form .btn { justify-self: start; }
.form__status { min-height: 1.4em; color: var(--muted); font-size: 14px; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.done { display: flex; gap: 14px; align-items: flex-start; padding: 20px; border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--bg); align-self: start; }
.done .icon { color: var(--keep-text); margin-top: 3px; }
.done__title { font-size: 18px; font-weight: 600; }
.done .t-muted { margin-top: 4px; font-size: 15px; }

/* Footer */
.footer { padding: 32px 0 40px; border-top: 1px solid var(--border); font-size: 14px; }
.footer__inner { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; }
.footer__links { display: flex; gap: 20px; margin-left: auto; }
.footer__links a { color: var(--muted); }
.footer__links a:hover { color: var(--text); }
@media (max-width: 640px) { .footer__links { margin-left: 0; width: 100%; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}