/* tar/ store — Web mode of TAR-BRAND.md. Black is the surface; cyan carries action. */
:root {
  --ink: #000000;
  --glow: #88d8ff;
  --bright: #e0f5ff;
  --warm: #ffaacc;
  --spark: #ffd7a8;
  --data: #c0eeff;
  --cream: #e8f4ff;
  --dim: rgba(232, 244, 255, 0.62);
  --faint: rgba(232, 244, 255, 0.28);
  --line: rgba(136, 216, 255, 0.18);
  --line-strong: rgba(136, 216, 255, 0.45);
  --ok: #16a34a;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --step-1: clamp(1.05rem, 0.95rem + 0.4vw, 1.25rem);
  --step-2: clamp(1.45rem, 1.2rem + 1vw, 2rem);
  --step-3: clamp(2.1rem, 1.6rem + 2.2vw, 3.4rem);
  --step-4: clamp(3rem, 2.1rem + 4.4vw, 5.6rem);
}

* { box-sizing: border-box; margin: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  background: var(--ink);
  color: var(--cream);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
[dir='rtl'] body, body[dir='rtl'] { font-family: 'Cairo', var(--sans); }

::selection { background: var(--glow); color: var(--ink); }

a { color: var(--glow); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--glow); outline-offset: 3px; border-radius: 2px; }

.ltr-num { direction: ltr; unicode-bidi: isolate; }

.wrap { max-width: 68rem; margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2.5rem); }

/* ---------- header ---------- */
header.site {
  display: flex; align-items: baseline; justify-content: space-between;
  padding-block: clamp(1.2rem, 3vw, 2rem);
}
.wordmark { font-family: var(--serif); font-size: 1.6rem; color: var(--bright); letter-spacing: -0.01em; }
.wordmark .slash { color: var(--glow); }
.wordmark small { font-family: var(--mono); font-size: 0.55em; color: var(--dim); margin-inline-start: 0.6em; letter-spacing: 0.2em; }
.lang-toggle {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em;
  background: none; border: 1px solid var(--line); color: var(--cream);
  padding: 0.45em 0.95em; border-radius: 3px; cursor: pointer;
}
.lang-toggle:hover { border-color: var(--line-strong); color: var(--glow); }

/* ---------- hero ---------- */
.hero { padding-block: clamp(2.5rem, 8vw, 6.5rem) clamp(2rem, 6vw, 4.5rem); position: relative; }
.eyebrow {
  font-family: var(--mono); font-size: 0.66rem; text-transform: uppercase;
  letter-spacing: 0.4em; color: rgba(255, 170, 204, 0.8); margin-bottom: 1.4rem;
}
[dir='rtl'] .eyebrow { letter-spacing: 0.18em; }
.hero h1 {
  font-family: var(--serif); font-weight: 400; font-size: var(--step-4);
  line-height: 1.04; color: var(--bright); letter-spacing: -0.015em; max-width: 17ch;
  text-wrap: balance;
}
.hero h1 em { font-style: italic; color: var(--glow); }
.hero .sub { margin-top: 1.6rem; max-width: 54ch; font-size: var(--step-1); color: var(--dim); }
.hero .proof {
  margin-top: 2.4rem; display: flex; flex-wrap: wrap; gap: 0.5rem 2.2rem;
  font-family: var(--mono); font-size: 0.72rem; color: var(--faint); letter-spacing: 0.06em;
}
.hero .proof b { color: var(--data); font-weight: 500; }

/* ---------- ledger index ---------- */
.ledger-head {
  display: flex; justify-content: space-between; align-items: baseline;
  border-bottom: 1px solid var(--line-strong); padding-bottom: 0.7rem;
  font-family: var(--mono); font-size: 0.66rem; text-transform: uppercase;
  letter-spacing: 0.3em; color: var(--dim);
}
.product { border-bottom: 1px solid var(--line); padding-block: clamp(1.8rem, 4vw, 3rem); }
.product-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1rem 2rem; align-items: start; }
.product h2 { font-family: var(--serif); font-weight: 400; font-size: var(--step-3); line-height: 1.08; color: var(--bright); letter-spacing: -0.01em; }
.product .desc { margin-top: 0.9rem; max-width: 52ch; color: var(--dim); }
.product .facts { margin-top: 1.1rem; font-family: var(--mono); font-size: 0.72rem; color: var(--faint); display: flex; flex-wrap: wrap; gap: 0.35rem 1.8rem; }
.product .facts b { color: var(--data); font-weight: 500; }
.from { text-align: end; font-family: var(--mono); font-size: 0.7rem; color: var(--dim); }
.from .amount { display: block; font-family: var(--serif); font-size: var(--step-2); color: var(--glow); line-height: 1.1; }

.tiers { margin-top: 1.6rem; display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.tier {
  display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 1rem; align-items: center;
  background: var(--ink); padding: 1rem 1.2rem;
}
.tier .t-name { color: var(--cream); font-weight: 400; }
.tier .t-scope { grid-column: 1 / -1; color: var(--dim); font-size: 0.86rem; max-width: 62ch; }
.tier .t-price { font-family: var(--mono); color: var(--data); font-size: 0.95rem; white-space: nowrap; }
.buy {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; white-space: nowrap;
  background: var(--glow); color: var(--ink); border: 1px solid var(--glow);
  padding: 0.55em 1.3em; border-radius: 3px; cursor: pointer; font-weight: 600;
}
.buy:hover { background: var(--bright); border-color: var(--bright); }
.buy.ghost { background: none; color: var(--glow); }
.buy.ghost:hover { background: rgba(136, 216, 255, 0.12); }

/* ---------- care strip ---------- */
.care { margin-block: clamp(3rem, 7vw, 5.5rem); border: 1px solid var(--line); padding: clamp(1.5rem, 4vw, 2.6rem); position: relative; }
.care h3 { font-family: var(--serif); font-weight: 400; font-size: var(--step-2); color: var(--bright); }
.care h3 em { color: var(--spark); font-style: italic; }
.care p { margin-top: 0.7rem; color: var(--dim); max-width: 58ch; }
.care .facts { margin-top: 1rem; font-family: var(--mono); font-size: 0.72rem; color: var(--faint); display: flex; flex-wrap: wrap; gap: 0.3rem 1.6rem; }
.care .facts b { color: var(--data); font-weight: 500; }
.soon { position: absolute; top: -0.6em; inset-inline-end: 1.4rem; background: var(--ink); padding-inline: 0.7em; font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--spark); }

/* ---------- how it works ---------- */
.how { margin-block: clamp(3rem, 7vw, 5rem); }
.how ol { list-style: none; counter-reset: step; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: clamp(1.2rem, 3vw, 2.4rem); padding: 0; margin-top: 1.6rem; }
.how li { counter-increment: step; border-top: 1px solid var(--line-strong); padding-top: 0.9rem; }
.how li::before { content: counter(step, decimal-leading-zero); font-family: var(--mono); font-size: 0.7rem; color: var(--warm); letter-spacing: 0.2em; }
.how li strong { display: block; color: var(--bright); font-weight: 400; font-size: 1.05rem; margin-block: 0.35rem 0.3rem; }
.how li span { color: var(--dim); font-size: 0.9rem; }
.section-title { font-family: var(--mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.3em; color: var(--dim); }

/* ---------- checkout ---------- */
.checkout-veil { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.82); backdrop-filter: none; display: none; z-index: 40; }
.checkout { position: fixed; inset-block: 0; inset-inline-end: 0; width: min(34rem, 100vw); background: var(--ink); border-inline-start: 1px solid var(--line-strong); z-index: 50; display: none; flex-direction: column; transform: translateX(8px); }
[dir='rtl'] .checkout { transform: translateX(-8px); }
.checkout.open, .checkout-veil.open { display: flex; }
.checkout-veil.open { display: block; }
.checkout header { display: flex; justify-content: space-between; align-items: center; padding: 1.2rem 1.5rem; border-bottom: 1px solid var(--line); }
.checkout header h4 { font-family: var(--serif); font-weight: 400; font-size: 1.3rem; color: var(--bright); }
.checkout .close { background: none; border: 0; color: var(--dim); font-size: 1.4rem; cursor: pointer; line-height: 1; padding: 0.2em 0.4em; }
.checkout .close:hover { color: var(--glow); }
.checkout .body { padding: 1.5rem; overflow-y: auto; flex: 1; }
.co-line { font-family: var(--mono); font-size: 0.72rem; color: var(--faint); display: flex; justify-content: space-between; gap: 1rem; padding-block: 0.3rem; }
.co-line b { color: var(--data); font-weight: 500; }
.field { margin-top: 1.1rem; }
.field label { display: block; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--dim); margin-bottom: 0.4rem; }
.field input, .field textarea, .field select {
  width: 100%; background: rgba(136, 216, 255, 0.05); border: 1px solid var(--line);
  color: var(--cream); font-family: var(--sans); font-size: 0.95rem; font-weight: 300;
  padding: 0.65em 0.8em; border-radius: 3px;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--glow); }
.rails { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; margin-top: 0.4rem; }
.rail { border: 1px solid var(--line); padding: 0.7rem 0.9rem; border-radius: 3px; cursor: pointer; display: flex; gap: 0.6rem; align-items: baseline; }
.rail input { accent-color: var(--glow); }
.rail .r-name { color: var(--cream); font-size: 0.9rem; }
.rail .r-note { display: block; color: var(--faint); font-size: 0.72rem; font-family: var(--mono); }
.rail:has(input:checked) { border-color: var(--glow); background: rgba(136, 216, 255, 0.07); }
.agree { display: flex; gap: 0.6rem; align-items: start; margin-top: 1.3rem; font-size: 0.82rem; color: var(--dim); }
.agree input { accent-color: var(--glow); margin-top: 0.25em; }
.submit { margin-top: 1.4rem; width: 100%; background: var(--glow); color: var(--ink); border: 0; font-family: var(--mono); font-weight: 600; font-size: 0.8rem; letter-spacing: 0.12em; padding: 0.95em; border-radius: 3px; cursor: pointer; }
.submit:hover { background: var(--bright); }
.submit[disabled] { opacity: 0.45; cursor: not-allowed; }
.err { margin-top: 0.9rem; color: #ff9c9c; font-size: 0.85rem; }

/* payment step */
.pay-block { border: 1px solid var(--line); padding: 1.1rem 1.2rem; margin-top: 1.2rem; }
.pay-block .k { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--dim); }
.pay-block .v { font-family: var(--mono); color: var(--data); font-size: 0.95rem; word-break: break-all; margin-top: 0.3rem; }
.pay-amount { font-family: var(--serif); font-size: 2rem; color: var(--glow); }
.copy-btn { font-family: var(--mono); font-size: 0.66rem; background: none; border: 1px solid var(--line); color: var(--glow); padding: 0.3em 0.8em; border-radius: 3px; cursor: pointer; margin-top: 0.5rem; }
.note { font-size: 0.82rem; color: var(--dim); margin-top: 0.9rem; }

/* ---------- footer ---------- */
footer.site { border-top: 1px solid var(--line); margin-top: clamp(3rem, 8vw, 6rem); padding-block: 2rem 3rem; display: flex; flex-wrap: wrap; gap: 1rem 2.5rem; justify-content: space-between; font-size: 0.85rem; color: var(--dim); }
footer.site nav { display: flex; gap: 1.8rem; flex-wrap: wrap; }

/* ---------- status & terms pages ---------- */
.narrow { max-width: 44rem; }
.status-line { display: flex; justify-content: space-between; border-bottom: 1px solid var(--line); padding-block: 0.9rem; font-size: 0.95rem; }
.status-line .k { color: var(--dim); }
.status-line .v { font-family: var(--mono); color: var(--data); }
.terms h2 { font-family: var(--serif); font-weight: 400; font-size: var(--step-2); color: var(--bright); margin-top: 2.4rem; }
.terms p, .terms li { color: var(--dim); font-size: 0.95rem; }
.terms ul { padding-inline-start: 1.2rem; }

@media (max-width: 640px) {
  .product-row { grid-template-columns: 1fr; }
  .from { text-align: start; }
  .tier { grid-template-columns: 1fr auto; }
  .tier .t-price { grid-column: 1; }
  .rails { grid-template-columns: 1fr; }
}