@import url("https://fonts.googleapis.com/css2?family=Sora:wght@500;600;700&family=Albert+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap");

/* Tally — "the invoice is the interface". Tokens first, then base, layout, components. */

:root {
  --desk: #F6F6F1;
  --sheet: #FFFFFF;
  --ink: #16181B;
  --graphite: #5B6067;
  --rule: #E1E2DA;
  --lime: #C5F03A;
  --lime-deep: #4F6B00;
  --amber: #8A5A00;

  --font-head: "Sora", "Avenir Next", "Segoe UI", sans-serif;
  --font-body: "Albert Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --fs-h1: clamp(2.25rem, 6vw + 0.5rem, 4.25rem);
  --fs-h2: clamp(1.75rem, 3vw + 0.75rem, 2.75rem);
  --fs-h3: 1.25rem;
  --fs-body: 1.0625rem;
  --fs-small: 0.875rem;
  --fs-mono: 0.8125rem;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: clamp(4.5rem, 8vw, 7rem);

  --radius: 6px;
  --wrap: 1160px;
  --gutter: 20px;
  --line: 1px solid var(--rule);
  --line-ink: 1px solid var(--ink);
}

/* ---------- Base ---------- */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--desk);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 650;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-2);
  overflow-wrap: break-word;
  hyphens: auto;
}
h1 { font-size: var(--fs-h1); font-weight: 700; letter-spacing: -0.035em; }
h2 { font-size: var(--fs-h2); letter-spacing: -0.03em; }
h3 { font-size: var(--fs-h3); line-height: 1.25; }

p { margin: 0 0 var(--space-2); }
p, li, dd { overflow-wrap: break-word; }

a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--lime-deep); }

img, svg { display: block; max-width: 100%; }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--graphite); }

:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--lime);
  border-radius: 2px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  z-index: 100;
  background: var(--ink);
  color: var(--sheet);
  padding: 0.6rem 1rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
}
.skip-link:focus { top: 12px; }

/* ---------- Layout ---------- */

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--space-6); border-top: var(--line); }
.section--flush { border-top: 0; }
.section__head { max-width: 40rem; margin-bottom: var(--space-5); }
.section__head p { color: var(--graphite); font-size: 1.125rem; }

/* ---------- Header + nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 246, 241, 0.94);
  border-bottom: var(--line);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.375rem;
  letter-spacing: -0.03em;
  text-decoration: none;
  color: var(--ink);
}
.brand svg { width: 30px; height: 26px; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: var(--sheet);
  border: var(--line-ink);
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  content: "";
  position: relative;
  transition: transform 0.2s ease;
}
.nav-toggle__bars::before { position: absolute; top: -6px; }
.nav-toggle__bars::after { position: absolute; top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

.site-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--desk);
  border-bottom: var(--line-ink);
  padding: var(--space-2) var(--gutter) var(--space-3);
}
.site-nav[data-open="true"] { display: block; }

.site-nav__list {
  list-style: none;
  margin: 0 0 var(--space-2);
  padding: 0;
}
.site-nav__list a {
  display: block;
  padding: 0.75rem 0;
  border-bottom: var(--line);
  text-decoration: none;
  font-weight: 500;
}
.site-nav__list a[aria-current="page"] { box-shadow: inset 4px 0 0 var(--lime); padding-left: 0.75rem; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 46px;
  padding: 0.7rem 1.25rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background-color 0.12s ease;
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: 2px 2px 0 var(--ink); }
.btn:active { transform: none; box-shadow: none; }
.btn--ink { background: var(--ink); color: var(--sheet); }
.btn--ink:hover { box-shadow: 2px 2px 0 var(--lime-deep); }
.btn--lime { background: var(--lime); color: var(--ink); }
.btn--line { background: transparent; color: var(--ink); }
.btn--line:hover { background: var(--sheet); }
.btn--sm { min-height: 38px; padding: 0.5rem 0.9rem; font-size: 0.9375rem; }
.btn--block { width: 100%; }

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* ---------- Hero ---------- */

.hero { padding-block: var(--space-5) var(--space-6); }
.hero__grid { display: grid; gap: var(--space-5); align-items: center; }
.hero__title { max-width: 12ch; margin-bottom: var(--space-3); }
.hero__lead { font-size: 1.1875rem; color: var(--ink); max-width: 34rem; }
.hero .actions { margin-block: var(--space-3) var(--space-2); }
.hero__note { font-size: var(--fs-small); color: var(--graphite); }

.hero__product {
  position: relative;
  display: grid;
  gap: var(--space-2);
  align-items: start;
}

/* ---------- Invoice (drawn product) ---------- */

.invoice {
  position: relative;
  background: var(--sheet);
  border: var(--line-ink);
  border-radius: var(--radius);
  box-shadow: 6px 6px 0 var(--ink);
  padding: var(--space-3);
  font-size: 0.9375rem;
}
.invoice__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: var(--line);
}
.invoice__title { font-family: var(--font-head); font-weight: 700; font-size: 1.25rem; letter-spacing: -0.02em; }
.invoice__meta { font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--graphite); text-align: right; line-height: 1.6; }
.invoice__to { padding-block: 0.75rem; font-size: var(--fs-small); color: var(--graphite); border-bottom: var(--line); }
.invoice__to strong { color: var(--ink); font-weight: 600; }

.invoice__lines { list-style: none; margin: 0; padding: 0; }
.invoice__line {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.25rem 1rem;
  padding-block: 0.65rem;
  border-bottom: 1px dashed var(--rule);
}
.invoice__qty { font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--graphite); }
.invoice__amount { font-family: var(--font-mono); font-variant-numeric: tabular-nums; text-align: right; }

.invoice__totals { margin: 0; padding-top: 0.75rem; }
.invoice__totals div { display: flex; justify-content: space-between; gap: 1rem; padding-block: 0.2rem; }
.invoice__totals dt { color: var(--graphite); }
.invoice__totals dd { margin: 0; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.invoice__totals .invoice__grand { border-top: var(--line-ink); margin-top: 0.4rem; padding-top: 0.6rem; }
.invoice__grand dt { color: var(--ink); font-weight: 600; }
.invoice__grand dd { font-weight: 500; font-size: 1.125rem; }

.invoice__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: var(--line);
}
.invoice__link {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--graphite);
  padding: 0.35rem 0.6rem;
  border: var(--line);
  border-radius: 4px;
  background: var(--desk);
  overflow-wrap: anywhere;
}
.invoice__send {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  background: var(--ink);
  color: var(--sheet);
  border-radius: var(--radius);
  font-weight: 600;
  white-space: nowrap;
}

.stamp {
  position: absolute;
  right: 18px;
  top: 46%;
  transform: rotate(-9deg);
  padding: 0.35rem 0.9rem 0.3rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--lime);
  border: 2px solid var(--ink);
  border-radius: 4px;
  box-shadow: inset 0 0 0 3px var(--lime), inset 0 0 0 4px var(--ink);
}

/* Payment-status list beside the invoice */
.paylist {
  background: var(--sheet);
  border: var(--line);
  border-radius: var(--radius);
  padding: var(--space-2);
  font-size: var(--fs-small);
}
.paylist__title { font-family: var(--font-head); font-weight: 600; font-size: 0.9375rem; margin: 0 0 0.5rem; }
.paylist ul { list-style: none; margin: 0; padding: 0; }
.paylist li {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.15rem 0.6rem;
  align-items: center;
  padding-block: 0.6rem;
  border-top: var(--line);
}
.paylist__who { font-weight: 600; }
.paylist__state { grid-column: 2 / 4; color: var(--graphite); }
.paylist__sum { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.dot { width: 10px; height: 10px; border-radius: 999px; border: 2px solid var(--ink); }
.dot--paid { background: var(--lime); }
.dot--sent { background: var(--ink); }
.dot--waiting { background: var(--sheet); border-style: dashed; }

/* ---------- Tally strokes (step counter) ---------- */

.tally { display: inline-flex; gap: 5px; align-items: flex-end; height: 34px; margin-bottom: var(--space-2); }
.tally__stroke { display: block; width: 4px; height: 34px; background: var(--ink); border-radius: 1px; transform: rotate(4deg); }
.tally__stroke:nth-child(2) { height: 31px; transform: rotate(-3deg); }
.tally__stroke:nth-child(3) { height: 33px; transform: rotate(2deg); }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; border-top: var(--line-ink); }
.step { padding: var(--space-4) 0; border-bottom: var(--line); }
.step h3 { font-size: 1.5rem; }
.step p { color: var(--graphite); max-width: 30rem; margin: 0; }

/* ---------- Ledger (features as invoice lines) ---------- */

.ledger { margin: 0; padding: 0; list-style: none; border-top: var(--line-ink); }
.ledger__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
  padding-block: 1.1rem;
  border-bottom: var(--line);
}
.ledger__name { font-family: var(--font-head); font-weight: 600; font-size: 1.125rem; letter-spacing: -0.01em; margin: 0; }
.ledger__desc { color: var(--graphite); margin: 0; }
.ledger__plan { justify-self: start; }

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border: var(--line-ink);
  border-radius: 4px;
  white-space: nowrap;
}
.tag--lime { background: var(--lime); }

/* ---------- Plans ---------- */

.plans { display: grid; gap: var(--space-2); }
.plan {
  display: flex;
  flex-direction: column;
  background: var(--sheet);
  border: var(--line);
  border-radius: var(--radius);
  padding: var(--space-3);
}
.plan--marked { border-color: var(--ink); box-shadow: inset 0 6px 0 var(--lime); }
.plan__name { font-size: 1.375rem; margin-bottom: 0.25rem; }
.plan__for { color: var(--graphite); font-size: var(--fs-small); margin-bottom: var(--space-2); }
.price {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  padding-block: var(--space-2);
  border-block: 1px dashed var(--rule);
  margin-bottom: var(--space-2);
}
.price__value { font-family: var(--font-mono); font-size: 2.5rem; font-weight: 500; letter-spacing: -0.04em; line-height: 1; }
.price__unit { color: var(--graphite); font-size: var(--fs-small); }
.plan__list { list-style: none; margin: 0 0 var(--space-3); padding: 0; flex: 1; }
.plan__list li { position: relative; padding: 0.35rem 0 0.35rem 1.4rem; }
.plan__list li::before {
  content: "";
  position: absolute;
  left: 0.15rem;
  top: 0.75rem;
  width: 9px;
  height: 5px;
  border-left: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(-45deg);
}
.plans__more { margin-top: var(--space-3); }

/* Comparison table (pricing page) */
.compare { width: 100%; border-collapse: collapse; font-size: 0.9375rem; background: var(--sheet); border: var(--line); }
.compare th, .compare td { text-align: left; padding: 0.8rem 1rem; border-bottom: var(--line); vertical-align: top; }
.compare thead th { font-family: var(--font-head); border-bottom: var(--line-ink); }
.compare td { font-family: var(--font-mono); font-size: var(--fs-mono); }
.table-scroll { overflow-x: auto; }

/* ---------- FAQ ---------- */

.faq { border-top: var(--line-ink); max-width: 52rem; }
.faq details { border-bottom: var(--line); }
.faq summary {
  display: flex;
  justify-content: space-between;
  gap: var(--space-2);
  padding-block: 1.1rem;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--font-mono); font-weight: 400; font-size: 1.25rem; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--graphite); max-width: 42rem; padding-bottom: 0.5rem; }

/* ---------- CTA band ---------- */

.cta-band { background: var(--lime); border-top: var(--line-ink); border-bottom: var(--line-ink); padding-block: var(--space-6); }
.cta-band h2 { max-width: 18ch; }
.cta-band p { max-width: 34rem; font-size: 1.125rem; }
.cta-band .btn--line:hover { background: var(--sheet); }

/* ---------- Sub-pages ---------- */

.page-head { padding-block: var(--space-5) var(--space-4); border-bottom: var(--line); }
.page-head h1 { max-width: 16ch; }
.page-head p { color: var(--graphite); font-size: 1.1875rem; max-width: 38rem; margin: 0; }

.prose { max-width: 42rem; }
.prose h2 { font-size: 1.5rem; margin-top: var(--space-4); }
.prose p, .prose li { color: var(--ink); }

.contact-grid { display: grid; gap: var(--space-4); }
.contact-card { background: var(--sheet); border: var(--line); border-radius: var(--radius); padding: var(--space-3); align-self: start; }
.contact-card a { font-family: var(--font-mono); font-size: 1.0625rem; }

/* ---------- Forms ---------- */

.form { display: grid; gap: var(--space-2); max-width: 36rem; }
.form__field { display: grid; gap: 0.35rem; }
.form__label { font-weight: 600; font-size: 0.9375rem; }
.form__hint { font-size: var(--fs-small); color: var(--graphite); }
.form__input {
  width: 100%;
  min-height: 46px;
  padding: 0.65rem 0.8rem;
  font: inherit;
  color: var(--ink);
  background: var(--sheet);
  border: 1px solid #C9CBC1;
  border-radius: var(--radius);
}
.form__input:hover { border-color: var(--graphite); }
.form__input:focus-visible { border-color: var(--ink); outline: 2px solid var(--ink); outline-offset: 0; box-shadow: 0 0 0 5px var(--lime); }
textarea.form__input { min-height: 140px; resize: vertical; }
.form__field[data-state="error"] .form__input { border-color: #A3261B; box-shadow: inset 4px 0 0 #A3261B; }
.form__status { min-height: 1.5em; margin: 0; font-weight: 500; }
.form__status[data-state="sent"] { color: var(--lime-deep); }
.form__status[data-state="error"] { color: #A3261B; }

/* ---------- Footer ---------- */

.site-footer { padding-block: var(--space-5) var(--space-4); font-size: 0.9375rem; }
.site-footer__grid { display: grid; gap: var(--space-4); }
.site-footer p { color: var(--graphite); max-width: 22rem; }
.site-footer__links { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.site-footer__links a { text-decoration: none; }
.site-footer__links a:hover { text-decoration: underline; }
.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding-top: var(--space-2);
  border-top: var(--line);
  color: var(--graphite);
  font-size: var(--fs-small);
}

/* ---------- Style guide helpers ---------- */

.swatches { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: var(--space-2); }
.swatch { background: var(--sheet); border: var(--line); border-radius: var(--radius); overflow: hidden; font-size: var(--fs-small); }
.swatch__chip { height: 84px; border-bottom: var(--line); }
.swatch__body { padding: 0.75rem; }
.swatch__body code { font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--graphite); }
.chip--desk { background: #F6F6F1; }
.chip--sheet { background: #FFFFFF; }
.chip--ink { background: #16181B; }
.chip--graphite { background: #5B6067; }
.chip--rule { background: #E1E2DA; }
.chip--lime { background: #C5F03A; }
.chip--lime-deep { background: #4F6B00; }
.type-row { padding-block: var(--space-2); border-bottom: var(--line); }
.type-row code { display: block; font-family: var(--font-mono); font-size: var(--fs-mono); color: var(--graphite); margin-bottom: 0.4rem; }
.sg-block { margin-bottom: var(--space-5); }

/* ---------- Breakpoints ---------- */

@media (min-width: 640px) {
  :root { --gutter: 28px; }
  .ledger__row { grid-template-columns: 14rem 1fr auto; gap: var(--space-3); align-items: baseline; }
  .ledger__plan { justify-self: end; }
  .plans { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
  .contact-grid { grid-template-columns: 1fr 1.4fr; }
  .site-footer__grid { grid-template-columns: 1.5fr 1fr 1fr; }
}

@media (min-width: 900px) {
  :root { --gutter: 32px; }
  .nav-toggle { display: none; }
  .site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    position: static;
    background: none;
    border: 0;
    padding: 0;
  }
  .site-nav__list { display: flex; gap: var(--space-3); margin: 0; }
  .site-nav__list a { padding: 0.25rem 0; border-bottom: 2px solid transparent; font-size: 0.9375rem; }
  .site-nav__list a:hover { border-bottom-color: var(--ink); }
  .site-nav__list a[aria-current="page"] { box-shadow: none; padding-left: 0; border-bottom-color: var(--lime); }
  .hero { padding-block: var(--space-6); }
  .hero__grid { grid-template-columns: 1fr 1.15fr; gap: var(--space-5); }
  .hero__product { grid-template-columns: 1fr 13rem; }
  .paylist { margin-top: var(--space-5); }
  .steps { grid-template-columns: repeat(3, 1fr); border-top: 0; }
  .step { padding: var(--space-3) var(--space-3) var(--space-3) 0; border-bottom: 0; border-top: var(--line-ink); }
  .step + .step { padding-left: var(--space-3); border-left: var(--line); }
}

@media (min-width: 1200px) {
  .hero__product { grid-template-columns: 1fr 14.5rem; }
  .invoice { padding: var(--space-4); }
  .section__head { margin-bottom: var(--space-5); }
}

@media (max-width: 380px) {
  .invoice { padding: var(--space-2); box-shadow: 4px 4px 0 var(--ink); }
  .stamp { font-size: 1.15rem; right: 10px; }
  .price__value { font-size: 2.1rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .btn:hover { transform: none; }
}

@media print {
  .site-header, .site-footer, .cta-band { display: none; }
  body { background: #FFFFFF; }
}