/* =========================================================
   Ledger by Post AI — Shared site styles
   Loaded after tokens.css on every page.
   ========================================================= */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-relaxed);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }

/* ---------- Typography helpers ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 500;
}
.h1, .h2, .h3, .h4 {
  color: var(--color-text-strong);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: var(--lh-tight);
  margin: 0;
  text-wrap: balance;
}
.h1 {
  font-size: clamp(40px, 6.2vw, var(--fs-6xl));
  letter-spacing: -0.035em;
  font-weight: 600;
}
.h2 {
  font-size: clamp(30px, 3.6vw, var(--fs-4xl));
  letter-spacing: -0.028em;
}
.h3 {
  font-size: clamp(22px, 2.2vw, var(--fs-2xl));
  letter-spacing: -0.022em;
  line-height: var(--lh-snug);
}
.h4 {
  font-size: var(--fs-lg);
  letter-spacing: -0.015em;
  line-height: var(--lh-snug);
}
.lead {
  font-size: clamp(17px, 1.4vw, var(--fs-lg));
  line-height: var(--lh-normal);
  color: var(--color-text-muted);
  text-wrap: pretty;
  max-width: 56ch;
}

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: var(--container-narrow); }
.container--wide   { max-width: var(--container-wide); }

.section {
  padding-block: clamp(72px, 9vw, 128px);
}
.section--tight { padding-block: clamp(48px, 6vw, 80px); }

.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: clamp(40px, 5vw, 72px);
  max-width: 720px;
}

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: var(--color-brand);
  --btn-fg: var(--color-on-brand);
  --btn-bd: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: var(--radius-pill);
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: -0.005em;
  white-space: nowrap;
  transition: background var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease),
              transform var(--t-fast) var(--ease);
}
.btn:hover { background: var(--color-brand-strong); }
.btn:active { transform: translateY(0.5px); }
.btn--lg { padding: 14px 24px; font-size: var(--fs-base); }
.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--color-text-strong);
  --btn-bd: var(--color-border-strong);
}
.btn--ghost:hover { background: var(--color-bg-soft); }
.btn--inverse {
  --btn-bg: #fff;
  --btn-fg: var(--color-brand-ink);
}
.btn--inverse:hover { background: #f0f1f4; }
.btn--ghost-inverse {
  --btn-bg: transparent;
  --btn-fg: #fff;
  --btn-bd: rgba(255,255,255,0.35);
}
.btn--ghost-inverse:hover { background: rgba(255,255,255,0.08); }

.text-link {
  color: var(--color-brand);
  font-weight: 500;
  border-bottom: 1px solid color-mix(in oklch, var(--color-brand) 25%, transparent);
  transition: border-color var(--t-fast) var(--ease);
}
.text-link:hover { border-bottom-color: var(--color-brand); }
.text-link .arrow { display: inline-block; transition: transform var(--t-fast) var(--ease); }
.text-link:hover .arrow { transform: translateX(2px); }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: rgba(250, 250, 250, 0);
  backdrop-filter: saturate(140%) blur(0px);
  -webkit-backdrop-filter: saturate(140%) blur(0px);
  border-bottom: 1px solid transparent;
  transition: background var(--t-med) var(--ease),
              border-color var(--t-med) var(--ease),
              backdrop-filter var(--t-med) var(--ease);
}
.nav.is-scrolled {
  background: rgba(250, 250, 250, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--color-border);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  height: 68px;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  margin-left: auto;
}
.nav__links a:not(.btn) {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  font-weight: 450;
  letter-spacing: -0.005em;
  transition: color var(--t-fast) var(--ease);
}
.nav__links a:not(.btn):hover { color: var(--color-text-strong); }
.nav__menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  align-items: center;
  justify-content: center;
  margin-left: auto;
}
.nav__menu-btn svg { width: 18px; height: 18px; stroke: var(--color-text-strong); }
@media (max-width: 880px) {
  .nav__links { display: none; }
  .nav__menu-btn { display: inline-flex; }
}

/* Logo wordmark */
.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: var(--color-text-strong);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.025em;
}
.wordmark .by {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--color-text-subtle);
  text-transform: lowercase;
}
.wordmark--lg { font-size: 22px; }
.wordmark--inverse { color: #fff; }
.wordmark--inverse .by { color: rgba(255,255,255,0.55); }

/* ---------- Footer ---------- */
.footer {
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-border);
  padding-block: 72px 32px;
  margin-top: 0;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}
@media (max-width: 880px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-10); }
  .footer__brand { grid-column: 1 / -1; }
}
.footer__tag {
  margin-top: var(--space-4);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  max-width: 30ch;
}
.footer__col h5 {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  font-weight: 500;
  margin: 0 0 var(--space-5);
}
.footer__col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer__col a {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  transition: color var(--t-fast) var(--ease);
}
.footer__col a:hover { color: var(--color-text-strong); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-10);
  margin-top: var(--space-12);
  border-top: 1px solid var(--color-border);
  font-size: var(--fs-xs);
  color: var(--color-text-subtle);
  font-family: var(--font-mono);
}
@media (max-width: 600px) {
  .footer__bottom { flex-direction: column; gap: var(--space-3); align-items: flex-start; }
}

/* ---------- Slot placeholders (screenshots) ---------- */
.slot {
  position: relative;
  background:
    repeating-linear-gradient(
      135deg,
      #f0efec 0 14px,
      #ebeae6 14px 28px
    );
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  overflow: hidden;
  text-align: center;
  padding: 16px;
}
.slot__label {
  background: rgba(255,255,255,0.86);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-size: 11.5px;
  white-space: nowrap;
  max-width: calc(100% - 24px);
  overflow: hidden;
  text-overflow: ellipsis;
}
.slot__label .dim { color: var(--color-text-subtle); margin-left: 8px; }
.slot--soft {
  background:
    repeating-linear-gradient(
      135deg,
      #f6f5f2 0 12px,
      #f1f0ec 12px 24px
    );
}

/* Aspect ratios */
.ar-16x10 { aspect-ratio: 16 / 10; }
.ar-16x9  { aspect-ratio: 16 / 9; }
.ar-4x3   { aspect-ratio: 4 / 3; }
.ar-1x1   { aspect-ratio: 1; }

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

/* ---------- FAQ ---------- */
.faq__item {
  border-top: 1px solid var(--color-border);
}
.faq__item:last-child { border-bottom: 1px solid var(--color-border); }
.faq__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  padding: 24px 0;
  color: var(--color-text-strong);
  font-size: var(--fs-md);
  font-weight: 500;
  letter-spacing: -0.012em;
  gap: var(--space-6);
}
.faq__btn .icon {
  width: 22px; height: 22px; flex-shrink: 0;
  position: relative;
  border-radius: 999px;
  border: 1px solid var(--color-border-strong);
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.faq__btn .icon::before, .faq__btn .icon::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  background: var(--color-text-strong);
}
.faq__btn .icon::before { width: 10px; height: 1.5px; }
.faq__btn .icon::after  { width: 1.5px; height: 10px; transition: transform var(--t-med) var(--ease); }
.faq__item[open] .faq__btn .icon::after { transform: rotate(90deg); }
.faq__panel {
  padding: 0 0 28px;
  max-width: 64ch;
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
}
.faq__panel p + p { margin-top: var(--space-3); }

/* ---------- Forms ---------- */
.field { display: flex; flex-direction: column; gap: 8px; }
.field label {
  font-size: var(--fs-sm);
  color: var(--color-text-strong);
  font-weight: 500;
}
.field .hint { font-size: var(--fs-xs); color: var(--color-text-subtle); }
.input, .textarea, .select {
  width: 100%;
  padding: 11px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  font-size: var(--fs-base);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.input:focus, .textarea:focus, .select:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 4px color-mix(in oklch, var(--color-brand) 15%, transparent);
}
.textarea { min-height: 140px; resize: vertical; }
.checkbox {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}
.checkbox input { margin-top: 3px; }

/* ---------- Prose (legal pages) ---------- */
.prose {
  color: var(--color-text);
  line-height: var(--lh-relaxed);
  font-size: var(--fs-base);
}
.prose h1 {
  font-size: clamp(34px, 4vw, 46px);
  letter-spacing: -0.03em;
  font-weight: 600;
  color: var(--color-text-strong);
  margin: 0 0 var(--space-3);
}
.prose .meta {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-subtle);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}
.prose h2 {
  font-size: var(--fs-xl);
  font-weight: 600;
  color: var(--color-text-strong);
  letter-spacing: -0.02em;
  margin: var(--space-12) 0 var(--space-3);
}
.prose h3 {
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--color-text-strong);
  letter-spacing: -0.01em;
  margin: var(--space-8) 0 var(--space-2);
}
.prose p { margin: 0 0 var(--space-4); color: var(--color-text); max-width: 68ch; }
.prose ul, .prose ol {
  padding-left: 22px;
  margin: 0 0 var(--space-5);
  color: var(--color-text);
}
.prose li { margin: 4px 0; max-width: 64ch; }
.prose a { color: var(--color-brand); border-bottom: 1px solid color-mix(in oklch, var(--color-brand) 30%, transparent); }
.prose a:hover { border-bottom-color: var(--color-brand); }
.prose strong { color: var(--color-text-strong); font-weight: 600; }
.prose code, .prose kbd {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--color-bg-sunken);
  padding: 1px 6px;
  border-radius: var(--radius-xs);
}
.prose blockquote {
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-5);
  border-left: 3px solid var(--color-brand);
  background: var(--color-brand-soft);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-text);
}

.toc {
  position: sticky;
  top: 96px;
  font-size: var(--fs-sm);
  border-left: 1px solid var(--color-border);
  padding-left: var(--space-5);
}
.toc h6 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  font-weight: 500;
  margin: 0 0 var(--space-3);
}
.toc ol { list-style: none; padding: 0; margin: 0; counter-reset: toc; display: flex; flex-direction: column; gap: 8px; }
.toc li { counter-increment: toc; }
.toc a {
  color: var(--color-text-muted);
  display: block;
  padding: 4px 0;
  transition: color var(--t-fast) var(--ease);
}
.toc a::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--font-mono);
  color: var(--color-text-subtle);
  font-size: 11px;
  margin-right: 10px;
}
.toc a:hover { color: var(--color-text-strong); }

.legal-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 720px);
  gap: var(--space-16);
  justify-content: center;
  padding-block: clamp(64px, 8vw, 112px);
}
@media (max-width: 980px) {
  .legal-layout { grid-template-columns: 1fr; gap: var(--space-8); }
  .toc { display: none; }
}

/* ---------- Page-hero (sub pages) ---------- */
.page-hero {
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-bg) 100%);
  padding-block: clamp(64px, 8vw, 112px) clamp(48px, 6vw, 80px);
}
.page-hero__crumb {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-subtle);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}
.page-hero__crumb a { color: var(--color-text-muted); }
.page-hero__crumb a:hover { color: var(--color-text-strong); }

/* ---------- Misc ---------- */
.divider { border: 0; border-top: 1px solid var(--color-border); margin: 0; }
.muted { color: var(--color-text-muted); }
.subtle { color: var(--color-text-subtle); }
.mono { font-family: var(--font-mono); }
.center { text-align: center; }
.no-wrap { white-space: nowrap; }
.kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  border: 1px solid var(--color-border-strong);
  padding: 1px 6px;
  border-radius: var(--radius-xs);
  background: #fff;
  color: var(--color-text-muted);
}

/* Reveal on scroll (very subtle) */
.reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* Skip link */
.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 16px;
  top: 16px;
  background: #fff;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  z-index: 1000;
}

/* Selection */
::selection { background: color-mix(in oklch, var(--color-brand) 24%, transparent); color: var(--color-text-strong); }

/* ========================================================
   Mobile fixes for postailedger.com
   ======================================================== */
@media (max-width: 768px) {
  .nav img[src*="lockup.png"] { height: 40px !important; }
  .footer img[src*="lockup.png"] { height: 48px !important; }
  .nav__inner { gap: 16px !important; height: 60px !important; }
  .hero__digest, .hero__shadow { display: none !important; }
  .hero__screen { transform: none !important; box-shadow: 0 8px 24px rgba(15,17,24,0.1) !important; }
  .hero { padding-block: 48px 24px !important; }
  .section { padding-block: 56px !important; }
  .section-head { margin-bottom: 32px !important; }
  .h1 { font-size: clamp(32px, 8vw, 44px) !important; line-height: 1.1 !important; }
  .h2 { font-size: clamp(26px, 6vw, 32px) !important; }
  .hero__title br { display: none !important; }
  .features__grid { grid-template-columns: 1fr !important; gap: 16px !important; }
  .how__grid { grid-template-columns: 1fr !important; gap: 32px !important; }
  .feature { padding: 20px !important; }
  .container { padding-inline: 20px !important; }
  .nav__links { display: none !important; }
  .nav__menu-btn { display: inline-flex !important; }
  .footer__grid { grid-template-columns: 1fr !important; gap: 32px !important; }
  .footer__brand { grid-column: auto !important; }
  .cta-band__inner { grid-template-columns: 1fr !important; gap: 24px !important; padding-block: 56px !important; }
  .cta-band__title { font-size: clamp(26px, 6vw, 32px) !important; }
  .faq__container { grid-template-columns: 1fr !important; gap: 32px !important; }
  .faq__head { position: static !important; }
  .legal-layout { grid-template-columns: 1fr !important; gap: 32px !important; padding-block: 48px !important; }
  .toc { display: none !important; }
  .prose h2 { margin-top: 32px !important; }
  .scope-table { font-size: 12px !important; display: block; overflow-x: auto; }
  .scope-table th, .scope-table td { padding: 8px 10px !important; }
  body { overflow-x: hidden; }
  img { max-width: 100%; height: auto; }
  .support-grid, .deletion-grid { grid-template-columns: 1fr !important; gap: 32px !important; padding-block: 48px !important; }
  .support-form, .deletion-form { padding: 20px !important; }
  .form-row { grid-template-columns: 1fr !important; }
}

@media (max-width: 480px) {
  .nav img[src*="lockup.png"] { height: 36px !important; }
  .footer img[src*="lockup.png"] { height: 40px !important; }
  .h1 { font-size: 30px !important; }
  .container { padding-inline: 16px !important; }
  .btn, .btn--lg { padding: 10px 16px !important; font-size: 14px !important; }
  .hero__pill { font-size: 11px !important; }
  .feature { padding: 16px !important; }
  .feature h3 { font-size: 17px !important; }
  .quote__card { padding: 24px !important; }
  .quote__text { font-size: 18px !important; }
}

/* Mobile menu — make the toggle actually show/hide the links */
@media (max-width: 768px) {
  .nav__inner { position: relative !important; }
  .nav__links.is-open {
    display: flex !important;
    position: absolute !important;
    top: calc(100% + 1px) !important;
    left: -20px !important;
    right: -20px !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 0 !important;
    background: rgba(250, 250, 250, 0.98) !important;
    backdrop-filter: saturate(180%) blur(14px) !important;
    -webkit-backdrop-filter: saturate(180%) blur(14px) !important;
    border-bottom: 1px solid var(--color-border) !important;
    padding: 8px 24px 20px !important;
    margin: 0 !important;
    z-index: 49 !important;
    box-shadow: 0 8px 24px rgba(15, 17, 24, 0.06) !important;
  }
  .nav__links.is-open a {
    padding: 14px 0 !important;
    border-bottom: 1px solid var(--color-border) !important;
    width: 100% !important;
    font-size: 15px !important;
    color: var(--color-text-strong) !important;
    text-align: left !important;
  }
  .nav__links.is-open a:last-child {
    border-bottom: none !important;
    margin-top: 12px !important;
    align-self: flex-start !important;
    width: auto !important;
  }
  /* Active state for the menu button when open */
  .nav__menu-btn[aria-expanded="true"] {
    background: var(--color-bg-soft) !important;
  }
}