/* SubFlow landing — receipt / paper editorial */

:root {
  --paper: #f3eee4;
  --paper-deep: #e8e0d2;
  --ink: #14110e;
  --ink-soft: #4f463c;
  --muted: #7d7468;
  --line: rgba(20, 17, 14, 0.14);
  --signal: #e04b2a;
  --receipt: #fffcf5;
  --shadow: 0 18px 50px rgba(20, 17, 14, 0.1);
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Outfit", "Segoe UI", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --max: 1120px;
}

*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

.paper-grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.35;
  background:
    radial-gradient(ellipse 70% 45% at 0% 0%, rgba(224, 75, 42, 0.07), transparent 55%),
    radial-gradient(ellipse 50% 40% at 100% 10%, rgba(20, 17, 14, 0.04), transparent 50%);
}

.nav,
.hero,
.flow,
.pricing,
.cta-bottom,
.footer {
  position: relative;
  z-index: 1;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.25rem;
  border-radius: 6px;
  border: 1.5px solid transparent;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  transition: transform 0.2s var(--ease), background 0.2s ease, border-color 0.2s ease;
}
.btn:active { transform: scale(0.98); }
.btn-ink {
  background: var(--ink);
  color: var(--paper);
}
.btn-ink:hover { background: #000; transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--ink); }
.btn-lg { padding: 0.95rem 1.55rem; font-size: 1rem; }
.btn-block { width: 100%; }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  max-width: var(--max);
  margin: 0 auto;
}
.nav-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.85rem;
}
.nav-links a:not(.btn) {
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 500;
}
.nav-links a:not(.btn):hover { color: var(--ink); }

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 2.5rem 3rem;
  align-items: center;
}

.brand-mark {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 4.75rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 0.95;
  margin-bottom: 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.8vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.22;
  max-width: 20ch;
  margin-bottom: 0.9rem;
}

.hero-sub {
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 36ch;
  margin-bottom: 1.6rem;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.6rem;
}
.hero-note { font-size: 0.85rem; color: var(--muted); }

/* Receipt — jagged bottom via mask, no content clipping */
.receipt {
  --perforation: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='12' viewBox='0 0 24 12' preserveAspectRatio='none'%3E%3Cpath fill='%23fff' d='M0 0h24v6l-3 6-3-6-3 6-3-6-3 6-3-6-3 6-3-6V0z'/%3E%3C/svg%3E");
  background: var(--receipt);
  color: var(--ink);
  padding: 1.5rem 1.35rem 1.75rem;
  width: 100%;
  max-width: 400px;
  margin-left: auto;
  margin-right: 0;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  border-bottom: none;
  position: relative;
  animation: receipt-in 0.75s var(--ease) both;
}

.receipt::after {
  content: "";
  display: block;
  height: 12px;
  margin: 0.85rem -1.35rem -1.75rem;
  background-color: var(--receipt);
  background-image: linear-gradient(90deg, transparent 0 4px, var(--paper) 4px 8px, transparent 8px 12px);
  background-size: 12px 100%;
  /* zig-zag cut using clip on the after strip only */
  clip-path: polygon(
    0 0, 100% 0,
    100% 40%, 96% 100%, 92% 40%, 88% 100%, 84% 40%, 80% 100%,
    76% 40%, 72% 100%, 68% 40%, 64% 100%, 60% 40%, 56% 100%,
    52% 40%, 48% 100%, 44% 40%, 40% 100%, 36% 40%, 32% 100%,
    28% 40%, 24% 100%, 20% 40%, 16% 100%, 12% 40%, 8% 100%,
    4% 40%, 0 100%
  );
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  box-sizing: border-box;
}

.receipt-top {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
  font-weight: 600;
}

.receipt-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.receipt-lines {
  list-style: none;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
  padding: 0.25rem 0;
  margin-bottom: 0.75rem;
}

.receipt-lines li,
.receipt-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.5rem 0;
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}

.receipt-lines li.soon span:first-child {
  color: var(--signal);
  font-weight: 600;
}

.receipt-total {
  font-size: 1.05rem;
  padding-top: 0.45rem;
  border-top: 2px solid var(--ink);
}
.receipt-total strong {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: -0.03em;
}

.receipt-foot {
  margin-top: 0.85rem;
  text-align: center;
  font-size: 0.66rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
}

.print-line {
  /* no opacity:0 — that clipped content when animations lag */
  animation: print-row 0.35s var(--ease) calc(var(--i, 0) * 0.05s) both;
}

@keyframes print-row {
  from { transform: translateY(4px); }
  to { transform: translateY(0); }
}

.flow {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem 1.5rem 4.5rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.75rem;
}

.flow-block {
  padding: 1.35rem 1.2rem;
  border-top: 2px solid var(--ink);
}

.flow-block h2 {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.55rem;
}

.flow-block p {
  color: var(--ink-soft);
  font-size: 0.98rem;
  line-height: 1.6;
}

.pricing {
  background: var(--paper-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 4rem 1.5rem;
}

.pricing-heading {
  font-family: var(--font-display);
  text-align: center;
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
}

.pricing-row {
  max-width: 720px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.price-slip {
  background: var(--receipt);
  border: 1px solid var(--line);
  padding: 1.5rem 1.35rem;
  box-shadow: 0 8px 24px rgba(20, 17, 14, 0.05);
}

.price-slip.featured {
  border-color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--ink);
}

.slip-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

.slip-amount {
  font-family: var(--font-display);
  font-size: 2.35rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 0.3rem;
}
.slip-amount span {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted);
}

.slip-alt {
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.price-slip ul {
  list-style: none;
  margin: 0.85rem 0 1.35rem;
}
.price-slip li {
  padding: 0.4rem 0;
  border-bottom: 1px dashed var(--line);
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.price-slip li:last-child { border-bottom: none; }

.cta-bottom {
  text-align: center;
  padding: 4.5rem 1.5rem;
}
.cta-bottom h2 {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.8vw, 2rem);
  letter-spacing: -0.03em;
  max-width: 18ch;
  margin: 0 auto 1.5rem;
  line-height: 1.2;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.35rem 1.5rem;
  max-width: var(--max);
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink-soft);
}
.footer-links { display: flex; align-items: center; gap: 1rem; }
.footer-links a:hover { color: var(--ink); }

@keyframes receipt-in {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .receipt,
  .print-line { animation: none !important; }
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 1.25rem;
    text-align: center;
  }
  .hero h1,
  .hero-sub {
    max-width: none;
    margin-left: auto;
    margin-right: auto;
  }
  .hero-cta { align-items: center; }
  .receipt {
    margin-left: auto;
    margin-right: auto;
  }
  .pricing-row {
    grid-template-columns: 1fr;
    max-width: 380px;
  }
  .flow {
    grid-template-columns: 1fr;
    max-width: 520px;
  }
  .flow-block { text-align: left; }
}

@media (max-width: 640px) {
  .nav { padding: 0.85rem 1rem; }
  .nav-links a:not(.btn) { display: none; }
  .hero,
  .flow,
  .pricing,
  .cta-bottom { padding-left: 1rem; padding-right: 1rem; }
}