@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&display=swap");

:root {
  --navy-900: #10203a;
  --navy-700: #1c3357;
  --navy-500: #2f4d7d;
  --paper: #f7f5f0;
  --paper-card: #ffffff;
  --ink: #16202e;
  --ink-soft: #48556a;
  --border: #d9d4c8;
  --accent: #b8862f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Sans", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-size: 17px;
  line-height: 1.8;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

.hidden {
  display: none;
}

/* Header */
.site-header {
  background: var(--navy-900);
  padding: 20px 0;
}
.site-header .brand {
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  margin: 0;
  letter-spacing: 0.02em;
}

/* Hero */
.hero {
  background: var(--navy-900);
  color: #fff;
  padding: 100px 0 110px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(30px, 5vw, 44px);
  font-weight: 900;
  margin: 0 0 24px;
  letter-spacing: 0.01em;
}
.hero .lead {
  font-size: 17px;
  color: #d7deea;
  max-width: 560px;
  margin: 0 auto 40px;
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-text {
  display: inline-block;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  border-radius: 4px;
  padding: 14px 28px;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: opacity 0.15s ease;
}
.btn-primary {
  background: var(--accent);
  color: #1a1204;
}
.btn-primary:hover {
  opacity: 0.85;
}
.btn-secondary {
  background: transparent;
  color: var(--navy-900);
  border-color: var(--navy-500);
}
.btn-secondary:hover {
  opacity: 0.75;
}
.btn-text {
  background: none;
  border: none;
  color: var(--ink-soft);
  text-decoration: underline;
  padding: 8px 0;
  font-weight: 500;
}
.btn-large {
  font-size: 18px;
  padding: 18px 36px;
}

/* Wizard */
.wizard {
  padding: 100px 0;
}
.wizard-card {
  background: var(--paper-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 48px;
}
.step-label {
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  margin: 0 0 12px;
  letter-spacing: 0.04em;
}
.wizard-card h2 {
  font-size: 22px;
  margin: 0 0 32px;
  line-height: 1.6;
}
.options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
}
.option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
}
.option:hover {
  border-color: var(--navy-500);
}
.option input {
  width: 18px;
  height: 18px;
  accent-color: var(--navy-700);
}
.nav-row {
  display: flex;
  gap: 16px;
}

/* Result */
.result-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 32px 0;
}
.result-card {
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 6px;
  padding: 24px;
  background: var(--paper);
}
.result-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
}
.result-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 32px 0 20px;
}

.disclaimer {
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--border);
  padding-top: 20px;
  margin-top: 20px;
}

/* Boundary section */
.boundary {
  background: var(--paper-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}
.boundary h2 {
  font-size: 20px;
  margin: 0 0 16px;
}
.boundary p {
  color: var(--ink-soft);
  font-size: 15px;
  margin: 0;
}

/* Footer */
.site-footer {
  padding: 48px 0;
}
.site-footer .disclaimer {
  border-top: none;
  padding-top: 0;
}
.site-footer .copyright {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 16px 0 0;
}

@media (max-width: 600px) {
  .hero {
    padding: 72px 0 80px;
  }
  .wizard {
    padding: 56px 0;
  }
  .wizard-card {
    padding: 28px 20px;
  }
  .nav-row,
  .cta-row {
    flex-direction: column;
  }
}