:root {
  --ink: #111111;
  --ink-muted: #5c5852;
  --paper: #faf7f2;
  --paper-deep: #f0eae1;
  --vermilion: #e4572e;
  --vermilion-dark: #c3421b;
  --hairline: #e3ded6;
  --hairline-dark: #cfc8be;
  --card-bg: #fffdf9;
  --card-bg-elevated: #ffffff;
  --focus-ring: rgba(228, 87, 46, 0.28);
  --radius-sm: 4px;
  --radius: 6px;
  --radius-md: 8px;
  --shadow-flat: 0 1px 2px rgba(17, 17, 17, 0.04);
  --shadow-subtle: 0 2px 5px rgba(17, 17, 17, 0.06);
  --font-serif: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background-color: var(--paper);
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.55;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--hairline-dark);
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

a:hover {
  color: var(--vermilion);
  text-decoration-color: var(--vermilion);
}

.wrap {
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-head {
  background-color: var(--paper);
  border-bottom: 1px solid var(--hairline);
  box-shadow: 0 3px 0 0 var(--vermilion);
  position: relative;
  z-index: 10;
}

.site-head .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.logo {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.3rem;
  line-height: 1.15;
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.01em;
}

.logo:hover {
  color: var(--ink);
  text-decoration: none;
}

.logo-mark {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background-color: var(--vermilion);
  color: #ffffff;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 700;
  font-family: var(--font-sans);
  line-height: 1;
}

.site-head nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.site-head nav a {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  text-decoration: none;
  padding: 4px 0;
  transition: color 0.15s ease;
}

.site-head nav a:hover {
  color: var(--vermilion);
  text-decoration: none;
}

main {
  display: block;
  max-width: 880px;
  margin: 0 auto;
  padding: 28px 20px 8px;
}

h1 {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 16px;
  padding-bottom: 14px;
  background: linear-gradient(to right, var(--vermilion), var(--vermilion)) left bottom / 64px 3px no-repeat;
}

.lede {
  font-size: 1.13rem;
  line-height: 1.6;
  color: var(--ink-muted);
  max-width: 62ch;
  margin: 0 0 24px;
}

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 22px;
  margin: 20px 0;
  box-shadow: var(--shadow-flat);
}

form.checker {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

form.checker label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin-bottom: 7px;
}

form.checker select,
form.checker input {
  display: block;
  width: 100%;
  padding: 11px 12px;
  background-color: #ffffff;
  color: var(--ink);
  border: 1px solid var(--hairline-dark);
  border-radius: var(--radius);
  font-size: 1rem;
  line-height: 1.4;
  outline: none;
  box-shadow: inset 0 1px 2px rgba(17, 17, 17, 0.03);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

form.checker select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%235c5852'%3e%3cpath fill-rule='evenodd' d='M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06z' clip-rule='evenodd'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px 16px;
  padding-right: 36px;
  cursor: pointer;
}

form.checker select:hover,
form.checker input:hover {
  border-color: #b5ada2;
}

form.checker select:focus,
form.checker input:focus {
  border-color: var(--vermilion);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--vermilion);
  color: #ffffff;
  border: 1px solid var(--vermilion-dark);
  border-radius: var(--radius);
  padding: 12px 20px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 1px 2px rgba(195, 66, 27, 0.2);
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}

.btn:hover {
  background-color: var(--vermilion-dark);
  border-color: #a43413;
  color: #ffffff;
  text-decoration: none;
}

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

.btn:focus-visible {
  outline: none;
  border-color: var(--vermilion-dark);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

@media (max-width: 640px) {
  h1 {
    font-size: 2.1rem;
  }
  .card {
    padding: 18px 16px;
  }
}

h2 {
  font-family: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--hairline);
  letter-spacing: -0.01em;
}

h3 {
  font-family: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
  margin: 24px 0 10px;
}

.result,
.result.visible {
  background: var(--card-bg);
  border: 1px solid var(--hairline-dark);
  border-top: 3px solid var(--vermilion);
  border-radius: var(--radius);
  padding: 22px;
  margin-top: 20px;
  box-shadow: 0 1px 3px rgba(17, 17, 17, 0.04);
}

.result .pct {
  font-family: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--ink);
  margin: 0 0 4px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.015em;
}

.result .verdict {
  display: inline-block;
  color: var(--vermilion-dark);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 14px;
}

.result p {
  color: var(--ink-muted);
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 8px 0;
  font-variant-numeric: tabular-nums;
}

.result p strong,
.result strong {
  color: var(--ink);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.data {
  background: var(--paper-deep);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 14px 18px;
  margin: 18px 0;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  font-size: 0.96rem;
  line-height: 1.5;
}

.price {
  font-family: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  letter-spacing: -0.02em;
  display: inline-block;
}

.cta {
  background: var(--ink);
  color: var(--paper);
  padding: 20px 22px;
  border-radius: var(--radius);
  margin: 28px 0;
  display: block;
  box-sizing: border-box;
}

.cta p {
  color: var(--paper);
  margin: 0 0 12px;
  line-height: 1.45;
}

.cta p:last-child {
  margin-bottom: 0;
}

.cta a {
  color: #ff8c66;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.15s ease;
}

.cta a:hover {
  opacity: 0.9;
}

.cta .btn {
  background: var(--vermilion);
  color: #fff;
  border-color: var(--vermilion);
  text-decoration: none;
}

.cta .btn:hover {
  background: var(--vermilion-dark);
  border-color: var(--vermilion-dark);
  color: #fff;
}

.note {
  font-size: 0.85rem;
  color: var(--ink-muted);
  line-height: 1.45;
  margin: 10px 0;
}

.site-foot {
  margin-top: 56px;
  border-top: 1px solid var(--hairline);
  position: relative;
  padding: 28px 20px 36px;
  box-sizing: border-box;
}

.site-foot::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--ink);
}

.site-foot p {
  max-width: 880px;
  margin: 0 auto 8px;
  font-size: 0.85rem;
  color: var(--ink-muted);
  line-height: 1.5;
}

.site-foot p:last-child {
  margin-bottom: 0;
}

.site-foot a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: var(--hairline-dark);
  transition: text-decoration-color 0.15s ease, color 0.15s ease;
}

.site-foot a:hover {
  color: var(--vermilion);
  text-decoration-color: var(--vermilion);
}

@media (max-width: 680px) {
  .result .pct {
    font-size: 1.55rem;
  }

  .cta {
    padding: 16px 18px;
  }

  .data {
    font-size: 0.92rem;
    padding: 12px 14px;
  }
}

@media (max-width: 390px) {
  .price {
    font-size: 1.6rem;
  }

  .result,
  .result.visible {
    padding: 16px;
  }

  .site-foot {
    padding-left: 14px;
    padding-right: 14px;
  }

  .cta {
    padding: 14px 14px;
  }

  body,
  .result,
  .data,
  .cta,
  .site-foot {
    word-break: normal;
    overflow-wrap: break-word;
  }
}