/* Public front page (SMA-8): Zer0 Sales Agent at sales0.smalltech.in.
   smallTech Brand Guidelines v1.2: Montserrat only; Readme ~60% / Terminal Ink ~25% / Gold Master ~12%.
   Primary button = gold fill + ink text (6px radius) everywhere; secondary = 1px ink outline.
   Flat: no gradients or shadows, except the hero accent word (gold-70 -> gold, display size only).
   Scoped to body.pub so it never touches the internal app (app.css). Mobile-first. */

:root {
  --gold: #D68A2E;
  --gold-60: #B2823B;
  --gold-70: #83602E;
  --ink: #1C1B18;
  --readme: #F5F1EE;
  --surface: #FBFBF9;
  --muted: #4F4D4A;
  --line: #C4C3C0;
  --ink-muted: #939290;
  --ink-line: #7B7977;
  --merged: #708D55;
  --radius-card: 16px;
  --radius-btn: 6px;
  --wrap: 1200px;
  --gutter: 20px;
}

*, *::before, *::after { box-sizing: border-box; }

body.pub {
  margin: 0;
  background: var(--readme);
  color: var(--ink);
  font-family: "Montserrat", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

:where(.pub) img { max-width: 100%; height: auto; display: block; }
:where(.pub) a { color: inherit; }
:where(.pub) p { margin: 0; }
:where(.pub) :where(h1, h2, h3) { margin: 0; }
:where(.pub) :where(ul, ol) { margin: 0; padding: 0; list-style: none; }

.pub-wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

.pub-skip { position: absolute; left: -9999px; top: 0; }
.pub-skip:focus { left: 12px; top: 12px; z-index: 100; background: var(--ink); color: var(--readme); padding: 8px 12px; border-radius: var(--radius-btn); }
.pub-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.pub :focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

/* ---------------------------------------------------------------- type scale */
.pub-label {
  font-size: 13px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--muted); line-height: 1.4; margin-bottom: 12px;
}
.pub-label--gold { color: var(--gold); }
.pub-title { font-size: 38px; line-height: 1.1; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 20px; }
.pub-accent {
  background: linear-gradient(90deg, var(--gold-70), var(--gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.pub-heading { font-size: 26px; line-height: 1.2; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 16px; }
.pub-heading--on-ink { color: var(--readme); }
.pub-subheading { font-size: 20px; line-height: 1.3; font-weight: 600; margin-bottom: 8px; }
.pub-lead { font-size: 17px; line-height: 1.6; color: var(--muted); max-width: 36em; margin-bottom: 28px; }
.pub-body { font-size: 16px; line-height: 1.6; color: var(--muted); }
.pub-body + .pub-body { margin-top: 14px; }
.pub-body--on-ink { color: var(--ink-muted); }
.pub-caption { font-size: 12px; line-height: 1.5; color: var(--muted); }
.pub-link { color: var(--ink); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--gold); text-decoration-thickness: 2px; }
.pub-link:hover { text-decoration-color: var(--ink); }

/* ---------------------------------------------------------------- buttons */
.pub-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 46px; padding: 12px 22px; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 600; line-height: 1.2; text-decoration: none; text-align: center;
  border: 1px solid transparent; transition: background-color .2s ease, border-color .2s ease;
}
.pub-btn--primary { background: var(--gold); color: var(--ink); }
.pub-btn--primary:hover { background: var(--gold-60); }
.pub-btn--secondary { border-color: var(--ink); color: var(--ink); background: transparent; }
.pub-btn--secondary:hover { background: var(--surface); }
.pub-btn--secondary-on-ink { border-color: var(--ink-line); color: var(--readme); background: transparent; }
.pub-btn--secondary-on-ink:hover { border-color: var(--ink-muted); }
.pub-actions { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
.pub-actions--center { align-items: stretch; margin: 24px 0 0; }

/* ---------------------------------------------------------------- header */
.pub-header { position: sticky; top: 0; z-index: 50; background: var(--readme); border-bottom: 1px solid var(--line); }
.pub-header__inner { display: flex; align-items: center; gap: 12px; min-height: 64px; }
.pub-brand { display: flex; align-items: baseline; gap: 8px; text-decoration: none; margin-right: auto; }
.pub-brand__name { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; color: var(--ink); }
.pub-brand__product { font-size: 13px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
.pub-nav { display: none; }
.pub-header__cta { display: none; }
.pub-menu { position: relative; }
.pub-menu__toggle {
  list-style: none; cursor: pointer; font-size: 14px; font-weight: 600; color: var(--ink);
  border: 1px solid var(--ink); border-radius: var(--radius-btn); padding: 8px 14px;
}
.pub-menu__toggle::-webkit-details-marker { display: none; }
.pub-menu[open] .pub-menu__toggle { background: var(--surface); }
.pub-menu__panel {
  position: absolute; right: 0; top: calc(100% + 8px); min-width: 200px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 8px;
  display: flex; flex-direction: column;
}
.pub-menu__panel a { padding: 10px 12px; text-decoration: none; font-weight: 600; font-size: 15px; border-radius: var(--radius-btn); }
.pub-menu__panel a:hover { background: var(--readme); }
.pub-menu__panel a.pub-btn { margin-top: 6px; }
.pub-menu__panel a.pub-btn:hover { background: var(--gold-60); }

/* ---------------------------------------------------------------- hero */
.pub-hero { padding: 40px 0 48px; }
.pub-hero--short { padding-bottom: 32px; }
.pub-hero__grid { display: grid; gap: 40px; align-items: center; }
.pub-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pub-pills li {
  background: var(--surface); border: 1px solid var(--line); color: var(--muted);
  font-size: 13px; font-weight: 500; padding: 6px 14px; border-radius: 999px;
}

/* chat mockup: flat surface card */
.pub-mock { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); overflow: hidden; }
.pub-mock__bar { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.pub-mock__dots { display: flex; gap: 5px; }
.pub-mock__dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--line); display: block; }
.pub-mock__url { flex: 1; text-align: center; font-size: 12px; color: var(--muted); background: var(--readme); border-radius: 999px; padding: 3px 10px; margin-right: 32px; }
.pub-mock__body { display: flex; flex-direction: column; gap: 12px; padding: 20px 16px; }
.pub-bubble { font-size: 14px; line-height: 1.5; padding: 10px 14px; border-radius: 14px; max-width: 85%; }
.pub-bubble--visitor { align-self: flex-end; background: var(--ink); color: var(--readme); border-top-right-radius: 4px; }
.pub-bubble--agent { align-self: flex-start; background: var(--readme); color: var(--ink); border: 1px solid var(--line); border-top-left-radius: 4px; }
.pub-mock__lead {
  align-self: flex-start; display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 600; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px;
}
.pub-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--merged); display: inline-block; }
.pub-mock__input { margin: 0 16px 16px; border: 1px solid var(--line); border-radius: 999px; padding: 10px 16px; font-size: 13px; color: var(--ink-muted); background: var(--readme); }

/* ---------------------------------------------------------------- sections */
.pub-section { padding: 48px 0; }
.pub-section--tight { padding: 16px 0; }
.pub-section--flush { padding-top: 0; }
.pub-section__head { max-width: 760px; margin-bottom: 32px; }
.pub-aside { margin-top: 28px; }

.pub-cards { display: grid; gap: 16px; }
.pub-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card);
  padding: 24px; display: flex; flex-direction: column; gap: 4px; text-decoration: none;
}
.pub-card__num { font-size: 13px; font-weight: 600; letter-spacing: 0.18em; color: var(--muted); margin-bottom: 12px; }
.pub-card--current { border-color: var(--ink); }
.pub-card--link { transition: border-color .2s ease; }
.pub-card--link:hover { border-color: var(--ink); }
.pub-card--link .pub-link { margin-top: auto; padding-top: 12px; }

/* dark panel */
.pub-panel { background: var(--ink); color: var(--readme); border-radius: var(--radius-card); padding: 28px 22px; }
.pub-panel__grid { display: grid; gap: 32px; }
.pub-steps { display: flex; flex-direction: column; gap: 16px; margin: 8px 0 28px; }
.pub-steps li { display: flex; gap: 14px; align-items: flex-start; color: var(--ink-muted); }
.pub-steps strong { color: var(--readme); font-weight: 600; }
.pub-steps span {
  flex: none; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--gold); color: var(--gold);
  display: inline-flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700;
}
.pub-feed { border: 1px solid var(--ink-line); border-radius: 12px; padding: 18px; align-self: center; }
.pub-feed__title { font-size: 13px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-muted); margin-bottom: 12px; }
.pub-feed li {
  display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; align-items: center;
  padding: 12px 0; border-top: 1px solid var(--ink-line);
}
.pub-feed__name { font-weight: 600; font-size: 14px; }
.pub-feed__mail { grid-column: 1; font-size: 12px; color: var(--ink-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pub-feed__tag {
  grid-column: 2; grid-row: 1 / span 2; font-size: 11px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--gold); border: 1px solid var(--gold); border-radius: 999px; padding: 3px 10px;
}
.pub-cta { text-align: center; padding: 40px 22px; }
.pub-cta .pub-heading { margin-bottom: 8px; }

.pub-split { display: grid; gap: 32px; align-items: start; }
.pub-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pub-stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 18px; }
.pub-stat__value { font-size: 26px; font-weight: 700; line-height: 1.2; margin-bottom: 6px; }
.pub-stat .pub-label { font-size: 11px; margin-bottom: 6px; }

/* ---------------------------------------------------------------- plans */
.pub-plans { display: grid; gap: 16px; }
.pub-plan {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card);
  padding: 24px; display: flex; flex-direction: column;
}
.pub-plan__price { font-size: 40px; font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; }
.pub-plan__price span { font-size: 16px; font-weight: 500; color: var(--muted); letter-spacing: 0; margin-left: 2px; }
.pub-plan__note { font-size: 13px; color: var(--muted); margin: 6px 0 20px; min-height: 1.6em; }
.pub-plan__features { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; flex: 1; }
.pub-plan__features li { display: flex; gap: 10px; font-size: 15px; font-weight: 500; }
.pub-plan__features li.is-out { color: var(--ink-muted); }
.pub-plan__mark { flex: none; width: 18px; font-weight: 700; }
.pub-plan__features li.is-in .pub-plan__mark { color: var(--merged); }
.pub-plan__cta { width: 100%; }
.pub-plan--featured { background: var(--ink); border-color: var(--ink); color: var(--readme); }
.pub-plan--featured .pub-label { color: var(--gold); }
.pub-plan--featured .pub-plan__price span,
.pub-plan--featured .pub-plan__note { color: var(--ink-muted); }
.pub-plan--featured .pub-plan__features li.is-in .pub-plan__mark { color: var(--gold); }

/* ---------------------------------------------------------------- footer */
.pub-footer { border-top: 1px solid var(--line); padding: 40px 0 28px; margin-top: 40px; }
.pub-footer__top { display: grid; gap: 32px; }
.pub-footer__product { font-size: 20px; font-weight: 700; }
.pub-footer__by { font-size: 13px; color: var(--muted); margin: 4px 0 6px; }
.pub-footer__logo { display: inline-block; }
.pub-footer__logo img { width: 160px; min-width: 120px; }
.pub-footer__nav { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.pub-footer__nav div { display: flex; flex-direction: column; gap: 8px; }
.pub-footer__nav a { font-size: 14px; color: var(--muted); text-decoration: none; overflow-wrap: anywhere; }
.pub-footer__nav a:hover { color: var(--ink); }
.pub-footer__nav .pub-label { margin-bottom: 4px; }
.pub-footer__legal { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }

/* ---------------------------------------------------------------- >= 640px */
@media (min-width: 640px) {
  :root { --gutter: 32px; }
  .pub-actions { flex-direction: row; flex-wrap: wrap; }
  .pub-actions--center { justify-content: center; }
  .pub-cards--4 { grid-template-columns: 1fr 1fr; }
  .pub-title { font-size: 46px; }
  .pub-footer__nav { grid-template-columns: repeat(3, 1fr); }
}

/* ---------------------------------------------------------------- >= 900px */
@media (min-width: 900px) {
  :root { --gutter: 40px; }
  .pub-header__inner { min-height: 76px; gap: 32px; }
  .pub-nav { display: flex; gap: 32px; }
  .pub-nav__link { font-size: 15px; font-weight: 600; color: var(--muted); text-decoration: none; padding: 4px 0; border-bottom: 2px solid transparent; }
  .pub-nav__link:hover, .pub-nav__link[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink); }
  .pub-header__cta { display: inline-flex; min-height: 42px; padding: 10px 18px; }
  .pub-menu { display: none; }

  .pub-hero { padding: 72px 0 72px; }
  .pub-hero--short { padding-bottom: 40px; }
  .pub-hero__grid { grid-template-columns: 1.1fr 1fr; gap: 56px; }
  .pub-title { font-size: 56px; }
  .pub-heading { font-size: 28px; }
  .pub-section { padding: 72px 0; }
  .pub-section--tight { padding: 24px 0; }
  .pub-section--flush { padding-top: 0; }
  .pub-cards--3 { grid-template-columns: repeat(3, 1fr); }
  .pub-cards--4 { grid-template-columns: repeat(4, 1fr); }
  .pub-card { padding: 28px; }
  .pub-panel { padding: 48px; }
  .pub-panel__grid { grid-template-columns: 1fr 1fr; gap: 56px; }
  .pub-cta { padding: 56px 48px; }
  .pub-split { grid-template-columns: 1.1fr 1fr; gap: 56px; }
  .pub-plans { grid-template-columns: repeat(3, 1fr); }
  .pub-plan { padding: 32px; }
  .pub-footer__top { grid-template-columns: 1fr 2fr; }
}
.pub-card .pub-actions { margin: 16px 0 0; }

/* 0-line wordmark: identical in header and footer; the 0 in Gold Master */
.pub-wordmark { font-size: 24px; font-weight: 700; letter-spacing: -0.01em; line-height: 1; color: var(--ink); }
.pub-zero { color: var(--gold); }

/* Review-inbox items in the hero mock */
.pub-item { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; display: grid; gap: 6px; }
.pub-item__meta { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.pub-item__tag { font-size: 10px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink); background: var(--gold); border-radius: 999px; padding: 2px 8px; }
.pub-item__tag--quiet { background: transparent; border: 1px solid var(--line); color: var(--muted); }
.pub-item__text { font-size: 14px; color: var(--ink); line-height: 1.5; }
.pub-item__why { font-size: 12px; color: var(--muted); }
.pub-item__actions { display: flex; gap: 6px; margin-top: 2px; }
.pub-chip { font-size: 12px; font-weight: 600; border: 1px solid var(--line); border-radius: 6px; padding: 4px 10px; color: var(--ink); }
.pub-chip--primary { background: var(--gold); border-color: var(--gold); }