:root {
  --color-ink: #161714;
  --color-muted: #676255;
  --color-paper: #f5efe3;
  --color-paper-deep: #efe6d6;
  --color-surface: rgba(255, 251, 245, 0.82);
  --color-panel: rgba(255, 253, 248, 0.92);
  --color-line: rgba(59, 49, 36, 0.14);
  --color-line-strong: rgba(59, 49, 36, 0.22);
  --color-cinnabar: #b33228;
  --color-cinnabar-deep: #97231b;
  --color-jade: #5f7f6b;
  --color-gold: #a38247;
  --shadow-soft: 0 22px 60px rgba(45, 34, 20, 0.10);
  --shadow-card: 0 26px 80px rgba(45, 34, 20, 0.12);
  --radius-sm: 8px;
  --radius-xs: 6px;
  --content-max: 1240px;
  --space-section: clamp(64px, 8vw, 108px);
  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
  --font-body: "Noto Sans", "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.55;
  background:
    linear-gradient(rgba(255, 249, 240, 0.92), rgba(255, 249, 240, 0.92)),
    url("./assets/paper-texture.png");
  background-size: auto, 320px 320px;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(circle at 12% 12%, rgba(179, 50, 40, 0.06), transparent 22rem),
    radial-gradient(circle at 82% 18%, rgba(95, 127, 107, 0.08), transparent 26rem),
    linear-gradient(180deg, rgba(245, 239, 227, 0.2), rgba(245, 239, 227, 0.7));
}

.ambient-wash {
  position: fixed;
  right: -12vw;
  bottom: -14vh;
  z-index: -1;
  width: min(70vw, 860px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(20, 19, 17, 0.11), rgba(20, 19, 17, 0.02) 46%, transparent 68%);
  filter: blur(28px);
  opacity: 0.5;
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-160%);
  border-radius: var(--radius-xs);
  background: var(--color-ink);
  color: #fffaf4;
  padding: 10px 14px;
  font-weight: 700;
  transition: transform 180ms ease-out;
}

.skip-link:focus {
  transform: translateY(0);
}

button,
input,
select {
  font: inherit;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: var(--font-display);
  line-height: 1.08;
  font-weight: 600;
  text-wrap: balance;
}

h1 {
  max-width: 720px;
  margin-bottom: 20px;
  font-size: clamp(3.35rem, 6vw, 5.6rem);
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(2.2rem, 3.8vw, 4rem);
}

h3 {
  margin-bottom: 10px;
  font-size: 1.22rem;
  font-family: var(--font-display);
  font-weight: 600;
}

.section-shell {
  width: min(var(--content-max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header,
.brand,
.nav-links,
.hero-actions,
.site-footer,
.trust-row,
.form-row {
  display: flex;
  align-items: center;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  justify-content: space-between;
  gap: 24px;
  width: min(var(--content-max), calc(100% - 40px));
  min-height: 84px;
  margin: 0 auto;
  padding: 10px 0;
  border-bottom: 1px solid rgba(59, 49, 36, 0.08);
  backdrop-filter: blur(14px);
}

.brand {
  gap: 14px;
}

.brand-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  filter: drop-shadow(0 8px 18px rgba(179, 50, 40, 0.12));
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-size: 1.6rem;
  font-family: var(--font-display);
  font-weight: 600;
}

.brand-copy small {
  color: var(--color-muted);
  font-size: 0.82rem;
}

.nav-links {
  gap: 42px;
  color: var(--color-muted);
  font-size: 0.95rem;
  font-weight: 600;
}

.nav-links a {
  position: relative;
  padding: 8px 0;
  transition: color 180ms ease-out;
}

.nav-links a:hover {
  color: var(--color-ink);
}

.nav-links a:first-child::after {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--color-cinnabar);
  content: "";
}

.nav-cta {
  min-width: 134px;
  padding: 12px 18px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--color-cinnabar), var(--color-cinnabar-deep));
  color: #fffaf4;
  font-weight: 700;
  text-align: center;
  box-shadow: 0 12px 24px rgba(179, 50, 40, 0.22);
  transition: transform 180ms ease-out, box-shadow 180ms ease-out;
}

.nav-cta:hover,
.button:hover {
  transform: translateY(-1px);
}

.nav-cta:hover,
.button-primary:hover {
  box-shadow: 0 18px 34px rgba(179, 50, 40, 0.28);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 560px);
  gap: clamp(42px, 6vw, 88px);
  align-items: center;
  min-height: calc(100vh - 84px);
  padding: 42px 0 56px;
}

.hero-copy {
  padding-top: 12px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--color-jade);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-lede,
.text-stack,
.form-copy p,
.pricing-copy p,
.feature-card p,
.price-card p {
  color: var(--color-muted);
  font-size: 1.06rem;
}

.hero-lede {
  max-width: 560px;
  margin-bottom: 30px;
}

.hero-actions {
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.button {
  display: inline-flex;
  min-width: 168px;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 24px;
  cursor: pointer;
  font-weight: 700;
  touch-action: manipulation;
  transition: transform 180ms ease-out, box-shadow 180ms ease-out, border-color 180ms ease-out, opacity 180ms ease-out;
}

.button-primary {
  background: linear-gradient(180deg, var(--color-cinnabar), var(--color-cinnabar-deep));
  color: #fffaf3;
  box-shadow: 0 14px 30px rgba(179, 50, 40, 0.24);
}

.button-secondary {
  border-color: var(--color-line-strong);
  background: rgba(255, 251, 245, 0.72);
  color: var(--color-ink);
}

.button-secondary:hover {
  border-color: rgba(179, 50, 40, 0.28);
  box-shadow: 0 12px 26px rgba(45, 34, 20, 0.08);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.62;
  transform: none;
  box-shadow: none;
}

.trust-row {
  flex-wrap: wrap;
  gap: 12px;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.trust-row span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.trust-row span::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-cinnabar);
  content: "";
}

.hero-visual {
  position: relative;
  min-height: 680px;
}

.ink-landscape {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(59, 49, 36, 0.08);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(180deg, rgba(246, 238, 225, 0.04), rgba(246, 238, 225, 0.55)),
    url("./assets/hero.png");
  background-position: center;
  background-size: cover;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.ink-landscape::after {
  position: absolute;
  inset: auto 0 0;
  height: 36%;
  content: "";
  background: linear-gradient(180deg, rgba(246, 238, 225, 0), rgba(246, 238, 225, 0.96));
}

.seal-accent {
  position: absolute;
  top: 34px;
  right: 34px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 82px;
  height: 82px;
  border-radius: 14px;
  background: rgba(255, 250, 244, 0.7);
  box-shadow: 0 16px 28px rgba(179, 50, 40, 0.12);
}

.seal-accent img {
  width: 70px;
  height: 70px;
  object-fit: contain;
}

.chart-preview,
.birth-form,
.result-panel,
.price-card,
.proof-card,
.feature-card,
.credibility-strip,
.faq-list details {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(rgba(255, 252, 247, 0.92), rgba(255, 252, 247, 0.92)),
    url("./assets/paper-texture.png");
  background-size: auto, 260px 260px;
  box-shadow: var(--shadow-soft);
}

.chart-preview {
  position: relative;
  z-index: 3;
  width: min(92%, 392px);
  margin: 164px 38px 0 auto;
  padding: 24px;
}

.preview-header,
.proof-strip,
.split-section,
.form-section,
.pricing-section,
.price-grid,
.faq-section {
  display: grid;
}

.preview-header {
  grid-template-columns: 1fr auto;
  align-items: end;
  margin-bottom: 20px;
}

.preview-header span,
.pillar-grid span,
.element-bars span {
  color: var(--color-muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.preview-header strong {
  color: var(--color-cinnabar);
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}

.pillar-grid div {
  min-height: 88px;
  padding: 14px;
  border: 1px solid rgba(59, 49, 36, 0.1);
  border-radius: var(--radius-xs);
  background: rgba(249, 243, 233, 0.9);
}

.pillar-grid strong,
.pillar-grid span {
  display: block;
}

.pillar-grid strong {
  margin-top: 10px;
  color: #213e62;
}

.element-bars {
  display: grid;
  gap: 12px;
}

.element-bars div {
  display: grid;
  grid-template-columns: 64px 1fr;
  align-items: center;
  gap: 10px;
}

.element-bars i {
  height: 9px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-ink) var(--value), rgba(59, 49, 36, 0.08) var(--value));
}

.preview-note {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(59, 49, 36, 0.08);
  color: var(--color-muted);
  font-size: 0.95rem;
}

.proof-strip {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  padding: 8px 0 var(--space-section);
}

.proof-card {
  min-height: 188px;
  padding: 24px;
}

.proof-icon,
.feature-icon {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--color-jade);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.proof-card strong {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 1.26rem;
  font-weight: 600;
}

.proof-card span:last-child {
  color: var(--color-muted);
}

.credibility-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-bottom: var(--space-section);
  overflow: hidden;
}

.credibility-strip div {
  min-height: 154px;
  padding: 24px;
  background: rgba(255, 251, 245, 0.72);
}

.credibility-strip strong,
.credibility-strip span {
  display: block;
}

.credibility-strip strong {
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
}

.credibility-strip span {
  color: var(--color-muted);
}

.split-section,
.form-section,
.pricing-section,
.faq-section {
  grid-template-columns: 0.86fr 1fr;
  gap: 42px;
  align-items: start;
  padding: var(--space-section) 0;
}

.text-stack {
  display: grid;
  gap: 16px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  padding: 0 0 var(--space-section);
}

.feature-card {
  min-height: 224px;
  padding: 24px;
}

.birth-form {
  display: grid;
  gap: 16px;
  padding: 28px;
}

.birth-form label {
  display: grid;
  gap: 8px;
  color: var(--color-ink);
  font-size: 0.92rem;
  font-weight: 700;
}

.required-mark {
  color: var(--color-cinnabar);
}

.field-hint,
.form-status {
  color: var(--color-muted);
  font-size: 0.86rem;
  font-weight: 500;
}

.form-status {
  min-height: 1.35em;
  margin: -4px 0 0;
}

.form-row {
  gap: 12px;
}

.form-row label {
  width: 100%;
}

input,
select {
  width: 100%;
  min-height: 50px;
  padding: 0 14px;
  border: 1px solid rgba(59, 49, 36, 0.12);
  border-radius: var(--radius-xs);
  background: rgba(255, 252, 247, 0.92);
  color: var(--color-ink);
  transition: border-color 160ms ease-out, box-shadow 160ms ease-out, background-color 160ms ease-out;
}

input:hover,
select:hover {
  border-color: rgba(59, 49, 36, 0.22);
}

input:focus,
select:focus,
.button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(95, 127, 107, 0.24);
  outline-offset: 2px;
}

input:focus,
select:focus {
  background: #fffdf9;
  box-shadow: 0 0 0 4px rgba(95, 127, 107, 0.08);
}

.form-submit,
.price-button {
  width: 100%;
}

.privacy-note {
  margin: 2px 0 0;
  color: var(--color-muted);
  font-size: 0.88rem;
}

.result-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 28px;
}

.result-panel p:last-child {
  margin-bottom: 0;
  color: var(--color-muted);
}

.is-hidden {
  display: none;
}

.price-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.price-card {
  display: grid;
  align-content: start;
  min-height: 280px;
  padding: 24px;
  position: relative;
}

.price-card-featured {
  border-color: rgba(95, 127, 107, 0.46);
  box-shadow: 0 26px 70px rgba(57, 78, 66, 0.13);
}

.plan-label {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 16px;
  border: 1px solid rgba(95, 127, 107, 0.18);
  border-radius: 999px;
  padding: 5px 10px;
  background: rgba(95, 127, 107, 0.08);
  color: var(--color-jade);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.price-card-featured .plan-label {
  border-color: rgba(179, 50, 40, 0.2);
  background: rgba(179, 50, 40, 0.08);
  color: var(--color-cinnabar);
}

.price {
  margin-bottom: 14px;
  color: var(--color-ink) !important;
  font-size: 2.2rem;
  font-weight: 700;
}

.price-button {
  margin-top: auto;
}

.faq-section {
  padding-top: 0;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  padding: 20px 22px;
}

.faq-list summary {
  cursor: pointer;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
}

.faq-list p {
  margin: 12px 0 0;
  color: var(--color-muted);
}

.site-footer {
  justify-content: space-between;
  gap: 20px;
  width: min(var(--content-max), calc(100% - 40px));
  min-height: 104px;
  margin: 0 auto;
  padding: 26px 0 34px;
  border-top: 1px solid rgba(59, 49, 36, 0.08);
  color: var(--color-muted);
}

.footer-brand .brand-logo {
  width: 44px;
  height: 44px;
}

.site-footer p {
  margin: 0;
  max-width: 420px;
  text-align: right;
}

@media (max-width: 1080px) {
  .hero,
  .split-section,
  .form-section,
  .pricing-section,
  .result-panel,
  .faq-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 30px;
  }

  .hero-visual {
    min-height: 620px;
  }

  .proof-strip,
  .feature-grid,
  .price-grid,
  .credibility-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .site-header {
    min-height: 74px;
  }

  .nav-links {
    display: none;
  }

  .brand-copy small {
    display: none;
  }

  .chart-preview {
    margin: 190px 24px 0 auto;
  }
}

@media (max-width: 640px) {
  .section-shell,
  .site-header,
  .site-footer {
    width: min(var(--content-max), calc(100% - 24px));
  }

  .nav-cta {
    display: none;
  }

  h1 {
    font-size: 3rem;
  }

  .hero-visual {
    min-height: 520px;
  }

  .seal-accent {
    top: 22px;
    right: 22px;
    width: 68px;
    height: 68px;
  }

  .seal-accent img {
    width: 56px;
    height: 56px;
  }

  .chart-preview {
    width: calc(100% - 28px);
    margin: 188px auto 0;
    padding: 20px;
  }

  .proof-strip,
  .feature-grid,
  .price-grid,
  .credibility-strip,
  .pillar-grid,
  .form-row {
    grid-template-columns: 1fr;
  }

  .proof-card,
  .feature-card,
  .birth-form,
  .result-panel,
  .price-card,
  .credibility-strip div,
  .faq-list details {
    padding: 20px;
  }

  .result-panel .button {
    width: 100%;
  }

  .site-footer {
    display: grid;
    padding-top: 22px;
  }

  .site-footer p {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .nav-cta:hover,
  .button:hover {
    transform: none;
  }
}