:root {
  --bg: #f6f4ee;
  --surface: #fffdf8;
  --ink: #1b1a16;
  --muted: #6e6a5f;
  --line: #e6e1d4;
  --accent: #0e7a4e;
  --accent-dark: #0a5c3b;
  --accent-soft: #e7f3ec;
  --warn: #b23b1e;
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: min(1080px, 100% - 32px);
  margin-inline: auto;
}

h1,
h2,
h3 {
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}

a {
  color: var(--accent);
}

.nav {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 12px;
}

.brand {
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.brand span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 14px;
}

.nav-links a:not(.btn) {
  text-decoration: none;
  color: var(--muted);
}

.nav-links a:not(.btn):hover {
  color: var(--ink);
}

.nav-links .btn {
  flex-shrink: 0;
  white-space: nowrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.08s ease, background 0.15s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-dark);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--muted);
}

.btn-block {
  width: 100%;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-dark);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 6px 12px;
}

/* ---------- landing ---------- */

.hero {
  padding-block: 56px 40px;
}

.hero .wrap {
  display: grid;
  gap: 40px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  margin-block: 18px 14px;
  max-width: 14ch;
}

.hero p.lead {
  font-size: 18px;
  color: var(--muted);
  max-width: 46ch;
  margin: 0 0 26px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--muted);
}

.mock {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 22px;
  box-shadow: 0 24px 60px -32px rgba(27, 26, 22, 0.35);
  max-width: 420px;
  margin-inline: auto;
  width: 100%;
  transform: rotate(-1deg);
}

.mock-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.mock-big {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line);
}

.mock-big small {
  display: block;
  font-size: 12px;
  color: var(--muted);
}

.mock-big strong {
  font-size: 22px;
  font-variant-numeric: tabular-nums;
}

.mock-rows {
  display: grid;
  gap: 8px;
  padding-top: 14px;
  font-size: 14px;
}

.mock-rows div {
  display: flex;
  justify-content: space-between;
}

.mock-rows span {
  color: var(--muted);
}

.mock-rows b {
  font-variant-numeric: tabular-nums;
}

.mock-profit {
  color: var(--accent-dark);
}

.section {
  padding-block: 48px;
}

.section h2 {
  font-size: clamp(24px, 3.5vw, 34px);
  max-width: 22ch;
}

.section .sub {
  color: var(--muted);
  margin: 10px 0 28px;
  max-width: 60ch;
}

.cards {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.card h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 12px;
}

.steps {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  counter-reset: step;
}

.step {
  padding: 20px;
  border-top: 2px solid var(--ink);
}

.step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.step h3 {
  font-size: 17px;
  margin: 8px 0 6px;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.price-grid {
  display: grid;
  gap: 32px;
  align-items: start;
}

.price-card {
  background: var(--ink);
  color: #f6f4ee;
  border-radius: 22px;
  padding: 28px;
  max-width: 440px;
}

.price-card .amount {
  font-size: 46px;
  font-weight: 750;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  margin-block: 8px;
}

.amount s,
.price s {
  font-size: 0.42em;
  font-weight: 500;
  opacity: 0.55;
  text-decoration-thickness: 1px;
  margin-right: 6px;
  letter-spacing: 0;
}

.price-card .amount s {
  display: block;
  margin: 0 0 -4px;
}

.price-card .amount small {
  white-space: nowrap;
}

.price-card .amount small {
  font-size: 15px;
  font-weight: 500;
  opacity: 0.65;
  letter-spacing: 0;
}

.price-card ul {
  list-style: none;
  padding: 0;
  margin: 20px 0 24px;
  display: grid;
  gap: 10px;
  font-size: 15px;
}

.price-card li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.price-card li::before {
  content: "✓";
  color: #8ce0b7;
  font-weight: 700;
}

.price-card .btn {
  background: #fff;
  color: var(--ink);
  width: 100%;
}

.price-card .fine {
  font-size: 12px;
  opacity: 0.6;
  margin-top: 12px;
  text-align: center;
}

.faq {
  display: grid;
  gap: 10px;
  max-width: 760px;
}

details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 18px;
}

summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
}

details p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

footer {
  border-top: 1px solid var(--line);
  margin-top: 40px;
  padding-block: 24px;
  color: var(--muted);
  font-size: 13px;
}

footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
}

footer a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}

footer a:hover {
  color: var(--ink);
}

/* ---------- app ---------- */

.app-head {
  padding-block: 36px 24px;
}

.app-head h1 {
  font-size: clamp(26px, 4vw, 38px);
}

.app-head p {
  color: var(--muted);
  margin: 8px 0 0;
}

.app-shell {
  display: grid;
  gap: 20px;
  align-items: start;
  padding-bottom: 48px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.panel + .panel {
  margin-top: 16px;
}

.panel h2 {
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  margin-bottom: 16px;
}

.fields {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr 1fr;
}

.field {
  display: grid;
  gap: 6px;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 13px;
  font-weight: 600;
}

.field .hint {
  font-size: 12px;
  color: var(--muted);
  margin-top: -2px;
}

.input-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 10px;
  padding: 0 10px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.input-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.input-wrap .pre,
.input-wrap .suf {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}

.input-wrap input {
  border: 0;
  background: transparent;
  font: inherit;
  font-variant-numeric: tabular-nums;
  padding: 10px 0;
  width: 100%;
  min-width: 0;
  color: var(--ink);
}

.input-wrap input:focus {
  outline: none;
}

.input-wrap input:disabled {
  color: var(--muted);
}

.field.is-off {
  opacity: 0.45;
}

.seg {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.seg label {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  cursor: pointer;
  background: #fff;
}

.seg input {
  accent-color: var(--accent);
  margin: 0;
}

.seg label:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
  font-weight: 600;
}

select {
  width: 100%;
  font: inherit;
  font-size: 14px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
}

.subtotal {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px dashed var(--line);
  margin-top: 16px;
  padding-top: 12px;
  font-size: 14px;
}

.subtotal b {
  font-variant-numeric: tabular-nums;
}

.results {
  position: sticky;
  top: 76px;
}

.result-hero {
  display: grid;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line);
}

.result-hero small {
  display: block;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.result-hero strong {
  font-size: clamp(24px, 3vw, 30px);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.result-note {
  display: block;
  font-size: 12px;
  color: var(--muted);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  margin-top: 2px;
}

.res-rows {
  display: grid;
  gap: 10px;
  padding-block: 16px;
  font-size: 14px;
}

.res-rows div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.res-rows span {
  color: var(--muted);
}

.res-rows b {
  font-variant-numeric: tabular-nums;
}

.loss {
  color: var(--warn);
}

.warn {
  background: #fbece7;
  border: 1px solid #f0c9bc;
  color: var(--warn);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 14px;
}

.actions {
  display: flex;
  gap: 10px;
  border-top: 1px dashed var(--line);
  padding-top: 16px;
}

.actions .btn {
  flex: 1;
  padding: 10px 14px;
  font-size: 14px;
}

/* gate */

.gate {
  max-width: 520px;
  margin: 48px auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px;
  box-shadow: 0 24px 60px -40px rgba(27, 26, 22, 0.4);
}

.gate h1 {
  font-size: 26px;
  margin-block: 14px 8px;
}

.gate p {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 18px;
}

.gate .price {
  font-size: 38px;
  font-weight: 750;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  margin-bottom: 2px;
}

.gate .price-note {
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 18px;
}

.gate form {
  display: grid;
  gap: 10px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
}

.gate input[type="text"] {
  font: inherit;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  width: 100%;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.gate input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.gate-msg {
  font-size: 13px;
  color: var(--warn);
  min-height: 1.2em;
  margin: 0 !important;
}

@media (min-width: 760px) {
  .hero .wrap {
    grid-template-columns: 1.15fr 0.85fr;
  }

  .price-grid {
    grid-template-columns: 1fr auto;
  }

  .fields {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 960px) {
  .app-shell {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

@media (max-width: 520px) {
  .fields {
    grid-template-columns: 1fr;
  }

  .nav-links a:not(.btn) {
    display: none;
  }

  .nav-links .btn {
    padding: 9px 14px;
    font-size: 13px;
  }

  .gate,
  .panel {
    padding: 18px;
  }

  .result-hero strong {
    font-size: 26px;
  }
}