/*
  Homepage styles. Loaded after tokens.css and styles.css, which supply the
  design tokens, the reset and .shell. Everything is scoped under .home so the
  Task Swap and Subscribe routes that share styles.css are not restyled.
*/

.home {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
}
.home h1, .home h2, .home h3 { font-family: var(--font-serif); font-weight: 700; text-wrap: balance; }
.home p { text-wrap: pretty; }
.home a:focus-visible, .home button:focus-visible, .home input:focus-visible,
.home .chip-input:focus-visible + label {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}
.home [id] { scroll-margin-top: 5rem; }
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

/* Buttons and links ------------------------------------------------------- */
.home .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 3.25rem; padding: 0 var(--space-5);
  border: 1.5px solid var(--color-brand); border-radius: var(--radius-pill);
  font: 800 1rem/1 var(--font-sans); letter-spacing: -0.005em; text-decoration: none;
  cursor: pointer;
  transition: background-color var(--dur-press) var(--ease-out), box-shadow var(--dur-press) var(--ease-out), transform var(--dur-press) var(--ease-out);
}
.home .btn-primary { color: var(--color-on-brand); background: var(--color-brand); }
.home .btn-primary:hover { background: var(--color-brand-2); }
.home .btn-outline { color: var(--color-brand); background: transparent; }
.home .btn-outline:hover { background: var(--color-tint); }
.home .btn-accent { color: var(--color-accent-ink); border-color: var(--color-accent); background: var(--color-accent); }
.home .btn-accent:hover { background: #d8fbbd; }
.home .btn:disabled { cursor: not-allowed; opacity: 0.55; }
.home .btn-meta {
  padding: 0.3rem 0.6rem; border-radius: var(--radius-pill);
  color: var(--color-accent-ink); background: var(--color-accent);
  font-size: var(--text-label); font-weight: 800; letter-spacing: 0.02em;
}
.home .btn-accent .btn-meta, .home .btn-outline .btn-meta { color: var(--color-on-brand); background: var(--color-brand); }
.home .btn-arrow::after { content: "\2192"; font-weight: 700; transition: transform var(--dur-press) var(--ease-out); }
.home .btn-sm { min-height: 2.75rem; padding: 0 var(--space-4); font-size: var(--text-small); }
.home .text-link {
  display: inline-flex; align-items: center; min-height: 2.75rem;
  color: var(--color-brand-2); font-weight: 700; text-decoration: underline;
  text-decoration-thickness: 1.5px; text-underline-offset: 0.25em;
}
.home .text-link:hover { color: var(--color-brand); }
@media (prefers-reduced-motion: no-preference) {
  .home .btn:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(7, 62, 49, 0.2); }
  .home .btn:active { transform: translateY(0); box-shadow: none; }
  .home .btn-arrow:hover::after { transform: translateX(3px); }
}

/* Header ----------------------------------------------------------------- */
.home .home-header {
  position: sticky; top: 0; z-index: 10;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-paper);
}
.home .bar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); min-height: 4rem; }
.home .wordmark { font-size: var(--text-small); font-weight: 900; letter-spacing: 0.01em; text-decoration: none; }
.home .nav-main { display: flex; align-items: center; gap: var(--space-2); }
.home .nav-main a:not(.btn) {
  display: inline-flex; align-items: center; min-height: 2.75rem; padding: 0 var(--space-3);
  border-radius: var(--radius-pill); font-size: var(--text-small); font-weight: 700; text-decoration: none;
}
.home .nav-main a:not(.btn):hover { background: var(--color-tint); }
@media (max-width: 30rem) {
  .home .nav-main a:not(.btn) { display: none; }
}

/* Shared text roles --------------------------------------------------------- */
.home .kicker {
  display: inline-flex; align-items: center; gap: var(--space-2); margin: 0;
  color: var(--color-brand-2); font-size: var(--text-label); font-weight: 900;
  letter-spacing: var(--tracking-label); text-transform: uppercase;
}
.home h2 { margin: 0; font-size: var(--text-title); line-height: var(--lh-heading); letter-spacing: -0.015em; }
.home em { font-style: italic; }

/* Hero: the letter, with the form inside the first screen --------------------------- */
.home .hero-wrap {
  background: radial-gradient(circle at 92% 0, rgba(200, 246, 165, 0.5), transparent 30rem), var(--color-paper);
}
.home .home-hero {
  display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: var(--space-7) clamp(2rem, 5vw, 4.5rem); align-items: start;
  padding-block: clamp(1.75rem, 4vw, 4rem) clamp(2.5rem, 6vw, 5rem);
}
.home .hero-copy { display: grid; gap: var(--space-4); justify-items: start; min-width: 0; }
.home .dateline {
  margin: 0; color: var(--color-brand-2); font-size: var(--text-label); font-weight: 900;
  letter-spacing: 0.14em; text-transform: uppercase;
}
.home h1 {
  margin: 0; font-size: clamp(2.3rem, 1.5rem + 3vw, 3.75rem); line-height: 1.06; letter-spacing: var(--tracking-display);
}
.home h1 em { padding-inline: 0.04em; background: linear-gradient(transparent 62%, var(--color-accent) 62%); }
.home .home-lede {
  max-width: 34rem; margin: 0; color: var(--color-ink-soft);
  font-family: var(--font-serif); font-size: var(--text-lede); line-height: 1.5;
}

.home .signup {
  width: 100%; max-width: 34rem; margin-top: var(--space-2); padding: var(--space-5);
  border: 1.5px solid var(--color-brand); border-radius: var(--radius-m); background: var(--color-tint);
}
.home .signup-lead { margin: 0 0 var(--space-4); font-size: var(--text-body); line-height: 1.45; }
.home .letter-form label { display: block; margin-bottom: var(--space-2); font-size: var(--text-small); font-weight: 800; }
.home .field-row { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.home .field-row input {
  flex: 1 1 13rem; min-width: 0; height: 3.25rem; padding: 0 var(--space-4);
  border: 1.5px solid var(--color-line-strong); border-radius: var(--radius-pill);
  color: var(--color-ink); background: #fff; font-size: 1rem;
}
.home .field-row input[aria-invalid="true"] { border-color: var(--color-error); }
.home .field-row .btn { flex: 0 0 auto; }
.home .field-message { margin: var(--space-2) 0 0; color: var(--color-muted); font-size: var(--text-small); line-height: 1.45; }
.home .field-message.error { padding: var(--space-2) var(--space-3); border-radius: var(--radius-s); color: var(--color-error); background: var(--color-error-bg); font-weight: 600; }
.home .field-message.integration-notice { padding: 0; border: 0; background: none; color: var(--color-ink-soft); }
.home .byline { display: flex; align-items: center; gap: var(--space-3); margin-top: var(--space-4); padding-top: var(--space-4); border-top: 1px solid var(--color-line); }
.home .byline img { width: 3rem; height: 3rem; flex: none; border-radius: var(--radius-s); }
.home .byline p { margin: 0; color: var(--color-ink-soft); font-size: var(--text-small); line-height: 1.4; }
.home .byline strong { color: var(--color-ink); }

/* Format formula and sample issue ------------------------------------------------------ */
.home .hero-side { display: grid; gap: var(--space-4); min-width: 0; }
.home .formula { margin: 0; padding: 0; border: 0; min-width: 0; }
.home .formula legend { padding: 0; margin-bottom: var(--space-3); }
.home .formula-tabs { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.home .chip-input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.home .chip {
  display: inline-flex; align-items: center; gap: var(--space-2); min-height: 2.75rem; padding: 0 var(--space-4) 0 var(--space-2);
  border: 1.5px solid var(--color-line-strong); border-radius: var(--radius-pill);
  background: var(--color-paper); font-size: var(--text-small); font-weight: 700; cursor: pointer;
  transition: background-color var(--dur-state) var(--ease-out), border-color var(--dur-state) var(--ease-out), color var(--dur-state) var(--ease-out);
}
.home .chip:hover { background: var(--color-tint); }
.home .chip-num {
  display: inline-grid; place-items: center; width: 1.75rem; height: 1.75rem; border-radius: 50%;
  color: var(--color-accent-ink); background: var(--color-accent); font-size: var(--text-label); font-weight: 900;
}
.home .chip-input:checked + .chip { color: var(--color-on-brand); border-color: var(--color-brand); background: var(--color-brand); }
.home .formula-panels { display: grid; }
.home .formula-panel {
  grid-area: 1 / 1; margin: 0; align-self: start; min-height: 3.1em;
  color: var(--color-ink-soft); font-family: var(--font-serif); font-size: 1.125rem; line-height: 1.45;
  visibility: hidden; opacity: 0;
  transition: opacity var(--dur-state) var(--ease-out), visibility 0s linear var(--dur-state);
}
.home .hero-side:has(#f1:checked) #fp1,
.home .hero-side:has(#f2:checked) #fp2,
.home .hero-side:has(#f3:checked) #fp3 { visibility: visible; opacity: 1; transition: opacity var(--dur-panel) var(--ease-out), transform var(--dur-panel) var(--ease-out), visibility 0s; }
@supports not selector(:has(*)) {
  .home .formula-panels { gap: var(--space-2); }
  .home .formula-panel { grid-area: auto; visibility: visible; opacity: 1; min-height: 0; }
}
@media (prefers-reduced-motion: no-preference) {
  .home .formula-panel { transform: translateY(4px); }
  .home .hero-side:has(#f1:checked) #fp1, .home .hero-side:has(#f2:checked) #fp2, .home .hero-side:has(#f3:checked) #fp3 { transform: none; }
}
.home .sample { margin: 0; overflow: hidden; border: 1px solid var(--color-line); border-radius: var(--radius-m); background: var(--color-paper); box-shadow: var(--shadow-soft); }
.home .sample-top {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-1) var(--space-4); padding: var(--space-3) var(--space-5);
  color: var(--color-on-brand-soft); background: var(--color-brand);
  font-size: var(--text-label); font-weight: 800; letter-spacing: var(--tracking-label); text-transform: uppercase;
}
.home .sample-body { padding: var(--space-5); }
.home .sample-body h2 { margin: 0 0 var(--space-2); font-size: 1.5rem; line-height: 1.15; }
.home .sample-body > p { margin: 0 0 var(--space-4); color: var(--color-ink-soft); font-family: var(--font-serif); font-size: 1.0625rem; }
.home .sample-body ul { display: grid; gap: var(--space-3); margin: 0; padding-left: 1.1rem; font-family: var(--font-serif); font-size: 1.0625rem; line-height: 1.5; }
.home .sample-body li::marker { color: var(--color-brand-2); }
.home .sample-body li b { font-family: var(--font-sans); font-size: 0.9375rem; color: var(--color-brand); }

/* Entrance: one 450 ms moment on first load. Content is visible without it. -------------- */
@media (prefers-reduced-motion: no-preference) {
  @keyframes home-rise { from { opacity: 0; transform: translateY(10px); } }
  .home .rise { animation: home-rise var(--dur-moment) var(--ease-out) both; }
  .home .hero-copy > .rise:nth-child(2) { animation-delay: var(--stagger); }
  .home .hero-copy > .rise:nth-child(3) { animation-delay: calc(var(--stagger) * 2); }
  .home .hero-copy > .rise:nth-child(4) { animation-delay: calc(var(--stagger) * 3); }
  .home .hero-side.rise { animation-delay: calc(var(--stagger) * 4); }
}

/* Bands --------------------------------------------------------------------- */
.home .band { padding-block: clamp(3rem, 7vw, var(--space-9)); }
.home .band-dark { color: var(--color-on-brand); background: var(--color-brand); }
.home .band-dark .kicker { color: var(--color-accent); }
.home .band-dark p { color: var(--color-on-brand-soft); }
.home .band-dark :focus-visible { outline-color: var(--color-accent); }

/* Task Swap teaser (dark band) -------------------------------------------------------- */
.home .bridge { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-6) clamp(2rem, 5vw, 4.5rem); align-items: center; }
.home .bridge-copy { display: grid; gap: var(--space-3); justify-items: start; min-width: 0; }
.home .bridge-copy h2 { font-size: clamp(1.75rem, 1.2rem + 2vw, 2.75rem); }
.home .bridge-copy p { margin: 0; max-width: 34rem; }
.home .bridge-copy .bridge-fine { font-size: var(--text-small); }
.home .bridge-card { min-width: 0; padding: var(--space-5); color: var(--color-ink); border-radius: var(--radius-m); background: var(--color-paper); }
.home .bridge-card fieldset { margin: 0; padding: 0; border: 0; min-width: 0; }
.home .bridge-card legend { display: grid; gap: var(--space-1); padding: 0; margin-bottom: var(--space-4); }
.home .bridge-card .kicker { color: var(--color-brand-2); }
.home .ask-list { display: grid; gap: var(--space-3); margin: var(--space-3) 0 0; padding: 0; list-style: none; counter-reset: ask; }
.home .ask-list li { display: grid; grid-template-columns: 2rem minmax(0, 1fr); column-gap: var(--space-3); padding-top: var(--space-3); border-top: 1px solid var(--color-line); counter-increment: ask; }
.home .ask-list li::before { content: counter(ask); grid-row: span 2; display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; color: var(--color-accent-ink); background: var(--color-accent); font-size: var(--text-label); font-weight: 900; }
.home .ask-list strong { font-family: var(--font-serif); font-size: var(--text-section); line-height: 1.2; }
.home .ask-list span { color: var(--color-muted); font-size: var(--text-small); line-height: 1.4; }
.home .bridge-go { display: grid; gap: var(--space-2); justify-items: start; margin-top: var(--space-4); }
.home .band-dark .bridge-card .bridge-status { margin: 0; color: var(--color-muted); font-size: var(--text-small); }
.home .bridge-card .btn-accent { color: var(--color-on-brand); border-color: var(--color-brand); background: var(--color-brand); }
.home .bridge-card .btn-accent:hover { background: var(--color-brand-2); }
.home .bridge-card .btn-accent .btn-meta { color: var(--color-accent-ink); background: var(--color-accent); }

/* Who it is for --------------------------------------------------------------------- */
.home .for-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--space-6) clamp(2rem, 5vw, 4.5rem); align-items: start; }
.home .for-intro { display: grid; gap: var(--space-3); }
.home .for-intro h2 { font-size: clamp(1.75rem, 1.2rem + 2vw, 2.75rem); }
.home .for-intro p { margin: 0; max-width: 28rem; color: var(--color-ink-soft); font-family: var(--font-serif); font-size: var(--text-lede); }
.home .for-lists { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-5) var(--space-6); }
.home .for-lists h3 { margin: 0 0 var(--space-3); font: 900 var(--text-label)/1.2 var(--font-sans); letter-spacing: var(--tracking-label); text-transform: uppercase; }
.home .for-lists ul { display: grid; gap: var(--space-3); margin: 0; padding: 0; list-style: none; }
.home .for-lists li { position: relative; padding-left: 1.5rem; }
.home .for-lists li::before { position: absolute; left: 0; top: 0; font-weight: 900; }
.home .for-yes h3 { color: var(--color-brand-2); }
.home .for-yes li::before { content: "+"; color: var(--color-brand-2); }
.home .for-no { color: var(--color-ink-soft); }
.home .for-no h3 { color: var(--color-muted); }
.home .for-no li::before { content: "\2212"; color: var(--color-muted); }

/* Close -------------------------------------------------------------------------------- */
.home .close { background: var(--color-accent); color: var(--color-accent-ink); }
.home .close-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-4) var(--space-7); align-items: center; }
.home .close h2 { font-size: clamp(1.75rem, 1.2rem + 2vw, 2.75rem); }
.home .close p { margin: var(--space-2) 0 0; color: var(--color-accent-ink); max-width: 36rem; }
.home .cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-5); }
.home .close .text-link { color: var(--color-accent-ink); }
.home .close :focus-visible { outline-color: var(--color-brand); }

.home .home-footer { padding-block: var(--space-6); background: var(--color-paper); color: var(--color-muted); font-size: var(--text-small); }
.home .home-footer .shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2) var(--space-5); }

/* Narrow screens ----------------------------------------------------------------------- */
@media (max-width: 56rem) {
  .home .home-hero, .home .bridge, .home .for-grid, .home .close-inner { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 36rem) {
  .home .shell { width: min(100% - 2rem, var(--max)); }
  .home .for-lists { grid-template-columns: minmax(0, 1fr); }
  .home .signup { padding: var(--space-4); }
  .home .field-row .btn, .home .cta-row .btn { width: 100%; }
  .home .chip { padding-right: var(--space-3); }
}

@media print {
  .home .home-header { display: none; }
}