/* Billirti website: the app's cool paper, ink and highlighter colors. */
:root {
  --paper: #F1F2F5;
  --sheet: #FFFFFF;
  --ink: #1C2030;
  --on-ink: #FFFFFF;
  --muted: #5C6072;
  --rule: #DCDDE6;
  --purple: #7B3FE4;
  --mark: #D9C8F7;
  --receipt: #FFFFFF;
  --receipt-ink: #2A2D38;
  --soft-blue: #E6F0FC;
  --lemon: #FFD43B;
  --flamingo: #FF6FAE;
  --sky: #4DB5FF;
  --lime: #8EDB4F;
  --lilac: #A98BFF;
  --mint: #34D6B0;
  --tangerine: #FF9A3C;
  --marker-alpha: .55;
  --display: "Nunito", ui-rounded, "SF Pro Rounded", system-ui, sans-serif;
  --body: "Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #14161B; --sheet: #1E2128; --ink: #ECEEF3; --on-ink: #14161B;
    --muted: #A3A7B5; --rule: #2F3340; --purple: #A57BFF; --mark: #5A2FB8;
    --receipt: #ECEDF1; --receipt-ink: #23262F; --soft-blue: #1D2838;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--purple); }
:focus-visible { outline: 2px solid var(--purple); outline-offset: 3px; border-radius: 6px; }

.wrap {
  width: 100%;
  max-width: 68rem;
  margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}

/* Wordmark: "billi" + "rti" on a lilac marker + purple dot, as on the app's home screen. */
.brand {
  font: 900 1.6rem/1 var(--display);
  letter-spacing: -.02em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.brand .rti { background: var(--mark); border-radius: .3em; padding: 0 .12em; }
.brand .dot { color: var(--purple); }

/* Top bar */
.topbar { padding-block: 1.25rem; }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.topbar nav { display: flex; gap: .25rem; flex-wrap: wrap; }
.topbar nav a {
  font: 700 .95rem/1 var(--display);
  color: var(--ink);
  text-decoration: none;
  padding: .6rem .8rem;
  border-radius: 999px;
}
.topbar nav a:hover { background: var(--sheet); }
.topbar nav a.lang { border: 1.5px solid var(--rule); }

/* Shared text pieces */
.eyebrow {
  font: 800 .78rem/1 var(--display);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--purple);
  margin: 0;
}
h1, h2, h3 { font-family: var(--display); text-wrap: balance; margin: 0; }
h2 { font-weight: 900; font-size: clamp(1.7rem, 4vw, 2.3rem); line-height: 1.15; letter-spacing: -.01em; }
h3 { font-weight: 800; font-size: 1.15rem; line-height: 1.3; }
.lede { color: var(--muted); font-size: 1.15rem; max-width: 34rem; margin: 0; }
mark {
  background: linear-gradient(transparent 12%, var(--marker, var(--lemon)) 12%, var(--marker, var(--lemon)) 88%, transparent 88%);
  color: inherit;
  padding: 0 .1em;
}

/* Hero */
.hero { padding-block: clamp(1.5rem, 5vw, 4rem) clamp(3rem, 7vw, 6rem); }
.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.hero-text { display: grid; gap: 1.4rem; min-width: 0; }
.hero h1 { font-weight: 900; font-size: clamp(2.7rem, 7.5vw, 4.6rem); line-height: 1.02; letter-spacing: -.025em; }
.hero h1 span { display: inline-block; }
.hero h1 .c1 { --marker: var(--lemon); }
.hero h1 .c2 { --marker: var(--flamingo); }
.hero h1 .c3 { --marker: var(--sky); }
.hero h1 mark {
  background: linear-gradient(transparent 42%, color-mix(in srgb, var(--marker) 70%, transparent) 42%, color-mix(in srgb, var(--marker) 70%, transparent) 94%, transparent 94%);
  padding: 0 .06em; margin: 0 -.06em;
}
.hero h1 span:nth-child(2) mark { background-position: 0 .04em; }
.cta { display: flex; gap: .75rem; flex-wrap: wrap; align-items: center; }
.badge {
  display: inline-flex; align-items: center; gap: .6rem;
  background: var(--ink); color: var(--on-ink);
  font: 800 1rem/1 var(--display);
  padding: .95rem 1.4rem; border-radius: 999px;
  text-decoration: none;
}
.badge svg { width: 1.2rem; height: 1.2rem; fill: currentColor; }
.cta .note { color: var(--muted); font-size: .95rem; }

/* Receipt illustration */
.scene { position: relative; display: grid; justify-items: center; min-width: 0; padding-block: 1rem 5.5rem; }
.blob { position: absolute; border-radius: 50%; z-index: 0; }
.blob.b1 { width: 78%; aspect-ratio: 1; background: var(--lemon); opacity: .35; top: 10%; left: 6%; }
.blob.b2 { width: 22%; aspect-ratio: 1; background: var(--flamingo); opacity: .55; top: 2%; left: -2%; }
.blob.b3 { width: 16%; aspect-ratio: 1; background: var(--sky); opacity: .6; bottom: 16%; right: -1%; }
.receipt {
  position: relative; z-index: 1;
  width: min(100%, 22rem);
  background: var(--receipt);
  color: var(--receipt-ink);
  font: 500 .86rem/1.55 var(--mono);
  padding: 1.4rem 1.3rem 2rem;
  transform: rotate(-3deg);
  box-shadow: 0 1.5rem 3rem -1rem rgba(28, 32, 48, .25);
  --zig: 10px;
  -webkit-mask: conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) 50% / calc(2 * var(--zig)) 100%;
          mask: conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) 50% / calc(2 * var(--zig)) 100%;
}
.receipt .shop { text-align: center; font-weight: 700; letter-spacing: .08em; margin-bottom: .2rem; }
.receipt .addr { text-align: center; opacity: .6; font-size: .75rem; margin-bottom: .9rem; }
.receipt .line {
  display: flex; justify-content: space-between; gap: 1rem;
  padding: .05rem .4rem; margin-inline: -.4rem;
  border-radius: .3rem;
}
.receipt .line span:first-child { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.receipt .rule { border-top: 1.5px dashed currentColor; opacity: .5; margin: .7rem 0; }
.receipt .total { font-weight: 800; font-size: 1rem; }
.hl { background: color-mix(in srgb, var(--c1) 55%, transparent); }
.hl.two { background: linear-gradient(90deg, color-mix(in srgb, var(--c1) 55%, transparent) 50%, color-mix(in srgb, var(--c2) 55%, transparent) 50%); }
.hl.three { background: linear-gradient(90deg, color-mix(in srgb, var(--c1) 55%, transparent) 33.3%, color-mix(in srgb, var(--c2) 55%, transparent) 33.3% 66.6%, color-mix(in srgb, var(--c3) 55%, transparent) 66.6%); }
.ana { --c1: var(--lemon); }
.mihai { --c1: var(--flamingo); }
.ioana { --c1: var(--sky); }

.shares {
  position: absolute; z-index: 2;
  right: 0; bottom: .5rem;
  display: grid; gap: .45rem;
  background: var(--sheet);
  border-radius: 1.1rem;
  padding: .85rem 1rem;
  box-shadow: 0 1rem 2.5rem -1rem rgba(28, 32, 48, .3);
  transform: rotate(2deg);
  min-width: 11.5rem;
}
.share { display: flex; align-items: center; gap: .6rem; font: 700 .95rem/1 var(--display); }
.share b { margin-left: auto; font-variant-numeric: tabular-nums; }
.dotp {
  width: 1.7rem; height: 1.7rem; border-radius: 50%;
  display: grid; place-items: center;
  font: 900 .8rem/1 var(--display); color: rgba(0, 0, 0, .72);
  background: var(--c1);
}

/* Sections */
section.block { padding-block: clamp(3rem, 7vw, 5.5rem); }
section.block.alt { background: var(--sheet); }
.block-head { display: grid; gap: .8rem; margin-bottom: 2.5rem; max-width: 40rem; }

.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; counter-reset: step; }
.step { background: var(--sheet); border-radius: 1.4rem; padding: 1.6rem; display: grid; gap: .6rem; align-content: start; }
section.alt .step { background: var(--paper); }
.step .num {
  width: 2.6rem; height: 2.6rem; border-radius: .8rem;
  display: grid; place-items: center;
  font: 900 1.2rem/1 var(--display); color: rgba(0, 0, 0, .72);
  background: var(--c1);
  transform: rotate(-4deg);
  margin-bottom: .4rem;
}
.step p { margin: 0; color: var(--muted); }

.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem 2.25rem; }
.feature { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: .3rem 1rem; align-items: start; }
.feature .ico {
  grid-row: span 2;
  width: 2.5rem; height: 2.5rem; border-radius: .75rem;
  display: grid; place-items: center;
  background: var(--c1); color: rgba(0, 0, 0, .72);
}
.feature .ico svg { width: 1.25rem; height: 1.25rem; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feature p { margin: 0; color: var(--muted); }

.private {
  background: var(--ink); color: var(--on-ink);
  border-radius: 1.75rem;
  padding: clamp(2rem, 5vw, 3.5rem);
  display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 2rem; align-items: center;
}
.private h2 { color: var(--on-ink); }
.private p { margin: 0; opacity: .8; }
.private ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .7rem; font: 700 1.05rem/1.3 var(--display); }
.private li { display: flex; gap: .7rem; align-items: center; }
.private li::before {
  content: ""; flex: none; width: 1.3rem; height: .8rem; border-radius: .25rem;
  background: var(--mint); transform: rotate(-6deg);
}
.private a { color: inherit; }

.langs { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.5rem; }
.langs span { background: var(--sheet); border-radius: 999px; padding: .4rem .85rem; font: 700 .9rem/1.2 var(--display); }

/* Footer */
.site-footer { padding-block: 2.5rem 3rem; color: var(--muted); font-size: .95rem; }
.site-footer .wrap { display: flex; gap: 1rem 2rem; flex-wrap: wrap; align-items: center; justify-content: space-between; }
.site-footer nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.site-footer a { color: var(--muted); text-decoration: none; font-weight: 600; }
.site-footer a:hover { color: var(--ink); }

/* Document pages: privacy and support */
.doc { padding-block: 1rem 3rem; }
.sheet {
  max-width: 46rem; margin: 0 auto;
  background: var(--sheet);
  border-radius: 1.5rem;
  padding: clamp(1.5rem, 5vw, 3rem);
  display: grid; gap: 2rem;
}
.sheet > header { display: grid; gap: .75rem; }
.sheet h1 { font-weight: 900; font-size: clamp(1.9rem, 5vw, 2.5rem); line-height: 1.1; letter-spacing: -.015em; }
.sheet h2 { font-size: 1.15rem; font-weight: 800; letter-spacing: 0; margin-bottom: .35rem; }
.meta { color: var(--muted); margin: 0; font-size: .95rem; }
nav.switch { display: flex; gap: .5rem; flex-wrap: wrap; }
nav.switch a {
  font: 700 .85rem/1 var(--display); letter-spacing: .04em; text-transform: uppercase;
  color: var(--ink); text-decoration: none;
  border: 1.5px solid var(--rule); border-radius: 999px; padding: .55rem .9rem;
}
nav.switch a:hover { border-color: var(--purple); }
.summary { background: var(--paper); border-radius: 1rem; padding: 1.25rem 1.4rem; display: grid; gap: .5rem; }
.summary p { margin: 0; }
section.lang-block { display: grid; gap: 1.5rem; scroll-margin-top: 1rem; }
section.lang-block + section.lang-block { border-top: 2px dashed var(--rule); padding-top: 2rem; }
.item p, .item ul { margin: 0; }
.item ul { padding-left: 1.2rem; display: grid; gap: .3rem; margin-top: .35rem; }
.item p + p { margin-top: .5rem; }

.contact {
  display: grid; gap: .4rem;
  background: var(--soft-blue); border-radius: 1rem; padding: 1.25rem 1.4rem;
}
.contact p { margin: 0; }
.contact .addr { font: 800 1.25rem/1.3 var(--display); word-break: break-all; }
.contact .addr a { color: var(--ink); text-decoration: none; }
details.faq { border-top: 1.5px solid var(--rule); padding-block: .9rem; }
details.faq:last-of-type { border-bottom: 1.5px solid var(--rule); }
details.faq summary { cursor: pointer; font: 800 1.05rem/1.35 var(--display); list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; color: var(--purple); font-size: 1.3rem; line-height: 1; }
details.faq[open] summary::after { content: "–"; }
details.faq p { margin: .6rem 0 0; color: var(--muted); }

@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: minmax(0, 1fr); }
  .scene { max-width: 26rem; margin: 0 auto; width: 100%; }
  .features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .private { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .steps, .features { grid-template-columns: minmax(0, 1fr); }
  .shares { right: -.25rem; min-width: 10rem; }
}
.label { font: 800 .75rem/1 var(--display); letter-spacing: .08em; text-transform: uppercase; color: var(--purple); }