/* サク索くん｜工務店プラン 共通スタイル */

:root {
  --line-green: #06c755;
  --line-green-dark: #04a548;
  --line-green-light: #eaf6f0;
  --bg: #f3f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --sub: #4b5563;
  --accent: #2563eb;
  --border: #e5e7eb;
  --warn: #fbbf24;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ========= NAV ========= */
nav.global {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav.global .inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

nav.global .brand {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
}

nav.global .brand small {
  font-weight: 400;
  font-size: 12px;
  color: var(--sub);
  margin-left: 6px;
}

nav.global ul {
  display: flex;
  gap: 20px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

nav.global a {
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
}

nav.global a:hover {
  color: var(--line-green-dark);
}

nav.global .nav-cta {
  background: var(--line-green);
  color: #fff !important;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}

nav.global .nav-cta:hover {
  background: var(--line-green-dark);
  text-decoration: none;
}

@media (max-width: 720px) {
  nav.global ul { gap: 12px; }
  nav.global a { font-size: 12px; }
}

/* ========= HEADER ========= */
header.hero {
  background: linear-gradient(135deg, #06c755 0%, #04a548 100%);
  color: #fff;
  padding: 64px 20px 80px;
  text-align: center;
}

header.hero .badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.18);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  margin-bottom: 16px;
}

header.hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  margin: 0 0 16px;
  letter-spacing: 0.02em;
  line-height: 1.4;
}

header.hero p.lead {
  font-size: clamp(15px, 2.2vw, 19px);
  margin: 0 auto 32px;
  max-width: 640px;
  opacity: 0.95;
}

header.hero .sub-title {
  display: block;
  font-size: 0.45em;
  opacity: 0.9;
  margin-top: 12px;
  font-weight: 400;
}

/* ========= CTA BUTTON ========= */
.cta {
  display: inline-block;
  background: #fff;
  color: var(--line-green-dark);
  font-weight: 700;
  padding: 14px 36px;
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
  transition: transform 0.15s ease;
}

.cta:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.cta.solid {
  background: var(--line-green);
  color: #fff;
  box-shadow: 0 6px 18px rgba(6, 199, 85, 0.32);
}

.cta.outline {
  background: transparent;
  border: 2px solid var(--line-green);
  color: var(--line-green-dark);
}

/* ========= SECTION ========= */
section {
  max-width: 960px;
  margin: 0 auto;
  padding: 56px 20px;
}

section.alt {
  background: #fff;
  border-radius: 20px;
}

section h2 {
  font-size: clamp(22px, 3.5vw, 30px);
  text-align: center;
  margin: 0 0 8px;
}

section h2::after {
  content: "";
  display: block;
  width: 48px;
  height: 4px;
  background: var(--line-green);
  margin: 12px auto 0;
  border-radius: 2px;
}

section .subtitle {
  text-align: center;
  color: var(--sub);
  margin: 0 0 36px;
}

/* ========= GRID CARDS ========= */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 20px;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
}

.card .icon {
  font-size: 40px;
  margin-bottom: 8px;
}

.card h3 {
  font-size: 18px;
  margin: 8px 0 6px;
  color: var(--line-green-dark);
}

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

/* ========= TABLES ========= */
table.compare {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  font-size: 15px;
}

table.compare th {
  background: var(--line-green-light);
  padding: 12px;
  text-align: left;
  color: var(--text);
  font-weight: 700;
}

table.compare td {
  padding: 12px;
  border-top: 1px solid var(--border);
}

table.compare tr.highlight td {
  background: #fff7e6;
  font-weight: 700;
}

/* ========= CTA SECTION ========= */
.cta-section {
  background: #fff;
  text-align: center;
  padding: 56px 20px;
  border-top: 1px solid var(--border);
}

.cta-section h2 {
  margin-top: 0;
}

.cta-section p {
  color: var(--sub);
  max-width: 580px;
  margin: 8px auto 28px;
}

/* ========= FOOTER ========= */
footer.global {
  background: #1f2937;
  color: #cbd5e1;
  text-align: center;
  padding: 32px 20px 24px;
  font-size: 13px;
}

footer.global .links {
  margin-bottom: 16px;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

footer.global a {
  color: #cbd5e1;
}

footer.global a:hover {
  color: #fff;
}

footer.global .tagline {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
}

footer.global small {
  display: block;
  margin-top: 4px;
  opacity: 0.7;
}

/* ========= UTILITIES ========= */
.text-center { text-align: center; }
.mt-32 { margin-top: 32px; }
.mb-32 { margin-bottom: 32px; }
.highlight-box {
  background: var(--line-green-light);
  border-radius: 14px;
  padding: 24px;
  margin: 32px auto;
  max-width: 680px;
}

.problem-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.problem {
  background: #fff;
  border-left: 4px solid var(--line-green);
  padding: 16px 18px;
  border-radius: 6px;
  font-size: 15px;
}

/* ========= DEMO BUBBLES ========= */
.demo {
  background: var(--line-green-light);
  border-radius: 16px;
  padding: 24px;
  max-width: 520px;
  margin: 0 auto;
}

.bubble {
  display: inline-block;
  padding: 12px 16px;
  border-radius: 16px;
  margin: 6px 0;
  max-width: 85%;
  white-space: pre-line;
  font-size: 14px;
  line-height: 1.6;
}

.bubble.user {
  background: #c1f0c5;
  float: right;
  clear: both;
  border-bottom-right-radius: 4px;
}

.bubble.bot {
  background: #fff;
  float: left;
  clear: both;
  border-bottom-left-radius: 4px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.demo::after {
  content: "";
  display: block;
  clear: both;
}

/* ========= PRICING ========= */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.plan {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 22px;
  text-align: center;
}

.plan.recommended {
  border-color: var(--line-green);
  box-shadow: 0 8px 24px rgba(6, 199, 85, 0.18);
  position: relative;
}

.plan.recommended::before {
  content: "おすすめ";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--line-green);
  color: #fff;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 999px;
}

.plan h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.plan .price {
  font-size: 28px;
  font-weight: 700;
  color: var(--line-green-dark);
  margin: 8px 0;
}

.plan .price small {
  font-size: 14px;
  color: var(--sub);
  font-weight: 400;
}

.plan ul {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  text-align: left;
  font-size: 14px;
}

.plan li::before {
  content: "✓ ";
  color: var(--line-green);
  font-weight: 700;
}

/* ========= FAQ ========= */
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
  margin-bottom: 12px;
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--line-green-dark);
}

.faq-item h3::before {
  content: "Q. ";
  color: var(--line-green);
  font-weight: 800;
}

.faq-item p {
  margin: 0;
  font-size: 14px;
  color: var(--text);
}

.faq-item p::before {
  content: "A. ";
  color: var(--sub);
  font-weight: 700;
}

/* ========= FORM ========= */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  background: #fff;
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-group .required {
  color: #ef4444;
  font-size: 12px;
}