/* ===== リセット・ベース ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 400;
  color: #1A1A1A;
  line-height: 1.8;
  background: #fff;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

/* ===== カラー変数 ===== */
:root {
  --color-main: #2C5F2E;
  --color-sub: #F5F0E8;
  --color-base: #FFFFFF;
  --color-text: #1A1A1A;
  --color-accent: #B89A5B;
}

/* ===== コンテナ ===== */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== セクション共通 ===== */
section {
  padding: 100px 0;
}

.section-title {
  font-family: "Noto Serif JP", serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  margin-bottom: 56px;
  line-height: 1.4;
}

.title-accent {
  display: block;
  font-family: "Playfair Display", serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-main);
  margin-bottom: 10px;
}

.section-lead {
  font-size: 15px;
  color: #555;
  text-align: center;
  max-width: 700px;
  margin: -36px auto 56px;
  line-height: 1.9;
}

/* ===== ポートフォリオバー ===== */
.portfolio-bar {
  background: var(--color-main);
  color: #fff;
  text-align: center;
  font-size: 12px;
  padding: 8px 16px;
  letter-spacing: 0.03em;
}

/* ===== ヘッダー ===== */
.header {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 72px;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  flex-shrink: 0;
}

.logo-en {
  font-family: "Playfair Display", serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-main);
  letter-spacing: 0.03em;
}

.logo-ja {
  font-family: "Noto Serif JP", serif;
  font-size: 11px;
  color: #666;
  letter-spacing: 0.1em;
}

.header-nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
}

.header-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.03em;
  transition: color 0.2s;
}

.header-nav a:hover {
  color: var(--color-main);
}

.header-btn {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 50px;
  white-space: nowrap;
  flex-shrink: 0;
  transition: opacity 0.2s;
}

.header-btn:hover {
  opacity: 0.85;
}

/* ===== ハンバーガーメニュー ===== */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== ヒーローセクション ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(0, 0, 0, 0.60) 0%,
    rgba(0, 0, 0, 0.40) 40%,
    rgba(44, 95, 46, 0.35) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding: 120px 24px 80px;
  max-width: 800px;
}

.hero-label {
  font-family: "Playfair Display", serif;
  font-size: 13px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  opacity: 0.75;
  margin-bottom: 20px;
}

.hero-title {
  font-family: "Noto Serif JP", serif;
  font-size: 52px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 28px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-sub {
  font-size: 16px;
  line-height: 1.9;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 40px;
}

.hero-note-cta {
  font-size: 13px;
  opacity: 0.7;
  margin-top: 14px;
  margin-bottom: 40px;
}

.portfolio-notice {
  font-size: 11px;
  opacity: 0.55;
  padding: 10px 20px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 6px;
  display: inline-block;
  margin-top: 8px;
}

/* ===== CTAボタン ===== */
.btn-primary {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  padding: 18px 48px;
  border-radius: 50px;
  box-shadow: 0 6px 24px rgba(184, 154, 91, 0.4);
  transition: transform 0.3s, box-shadow 0.3s;
  letter-spacing: 0.03em;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 36px rgba(184, 154, 91, 0.5);
}

.btn-secondary {
  display: inline-block;
  border: 2px solid #fff;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  padding: 16px 48px;
  border-radius: 50px;
  transition: background 0.3s, color 0.3s;
  letter-spacing: 0.03em;
}

.btn-secondary:hover {
  background: #fff;
  color: var(--color-main);
}

/* ===== 数字で見る実績 ===== */
.stats {
  background: var(--color-main);
  padding: 72px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stats-item {
  text-align: center;
  color: #fff;
  padding: 20px 16px;
  border-right: 1px solid rgba(255, 255, 255, 0.15);
}

.stats-item:last-child {
  border-right: none;
}

.stats-number {
  font-family: "Playfair Display", serif;
  font-size: 54px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 8px;
  color: #fff;
}

.stats-unit {
  font-family: "Noto Serif JP", serif;
  font-size: 20px;
  font-weight: 400;
}

.stats-label {
  font-size: 13px;
  opacity: 0.8;
  letter-spacing: 0.05em;
}

/* ===== 選ばれる理由 ===== */
.features {
  background: var(--color-base);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
}

.feature-img-wrap {
  overflow: hidden;
  height: 220px;
}

.feature-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.feature-card:hover .feature-img-wrap img {
  transform: scale(1.04);
}

.feature-body {
  padding: 28px 28px 32px;
}

.feature-title {
  font-family: "Noto Serif JP", serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-main);
  line-height: 1.5;
  margin-bottom: 14px;
}

.feature-text {
  font-size: 14px;
  color: #555;
  line-height: 1.85;
}

/* ===== 取り扱い商品 ===== */
.products {
  background: var(--color-sub);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s;
}

.product-card:hover {
  transform: translateY(-4px);
}

.product-img-wrap {
  overflow: hidden;
  height: 170px;
}

.product-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.product-card:hover .product-img-wrap img {
  transform: scale(1.05);
}

.product-body {
  padding: 16px 18px 20px;
}

.product-name {
  font-family: "Noto Serif JP", serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 4px;
}

.product-desc {
  font-size: 12px;
  color: #777;
  line-height: 1.6;
}

/* ===== お客様の声 ===== */
.voices {
  background: var(--color-base);
}

.voices-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 64px;
}

.voice-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.voice-img-wrap {
  overflow: hidden;
  height: 200px;
}

.voice-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.voice-body {
  padding: 24px 24px 28px;
}

.voice-attr {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-main);
  letter-spacing: 0.03em;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(44, 95, 46, 0.15);
}

.voice-quote {
  font-size: 13px;
  color: #444;
  line-height: 1.9;
  font-style: normal;
}

.voices-cta {
  text-align: center;
}

.voices-cta-text {
  font-family: "Noto Serif JP", serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
}

/* ===== FAQ ===== */
.faq {
  background: var(--color-sub);
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.faq-item summary {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 28px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  list-style: none;
  position: relative;
  transition: background 0.2s;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 28px;
  font-size: 22px;
  font-weight: 400;
  color: var(--color-accent);
  line-height: 1;
  transition: transform 0.3s;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item summary:hover {
  background: rgba(245, 240, 232, 0.6);
}

.faq-q {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--color-main);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
}

.faq-answer {
  padding: 0 28px 24px 76px;
  font-size: 14px;
  color: #555;
  line-height: 1.9;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  padding-top: 20px;
}

/* ===== CTA ===== */
.cta {
  position: relative;
  padding: 120px 0;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(26, 26, 26, 0.72) 0%,
    rgba(44, 95, 46, 0.60) 100%
  );
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
}

.cta-accent {
  font-family: "Playfair Display", serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.cta-title {
  font-family: "Noto Serif JP", serif;
  font-size: 36px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 24px;
}

.cta-sub {
  font-size: 15px;
  opacity: 0.88;
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.9;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

/* ===== フッター ===== */
.footer {
  background: #1A1A1A;
  color: var(--color-sub);
  padding: 72px 0 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(245, 240, 232, 0.1);
  margin-bottom: 32px;
}

.footer-logo .logo-en {
  font-family: "Playfair Display", serif;
  font-size: 24px;
  font-weight: 700;
  color: #fff;
}

.footer-logo .logo-ja {
  font-size: 11px;
  color: rgba(245, 240, 232, 0.6);
  letter-spacing: 0.1em;
}

.footer-tagline {
  font-family: "Noto Serif JP", serif;
  font-size: 13px;
  color: rgba(245, 240, 232, 0.65);
  margin-top: 12px;
  line-height: 1.7;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-nav a {
  font-size: 14px;
  color: rgba(245, 240, 232, 0.75);
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--color-accent);
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-info p {
  font-size: 13px;
  color: rgba(245, 240, 232, 0.65);
  line-height: 1.6;
}

.footer-bottom {
  text-align: center;
}

.portfolio-notice-footer {
  font-size: 12px;
  color: var(--color-accent);
  padding: 12px 16px;
  border: 1px solid rgba(184, 154, 91, 0.25);
  border-radius: 6px;
  background: rgba(184, 154, 91, 0.06);
  margin-bottom: 16px;
  display: inline-block;
}

.copyright {
  font-size: 12px;
  color: rgba(245, 240, 232, 0.45);
  letter-spacing: 0.03em;
}

/* ===== レスポンシブ（768px以下） ===== */
@media (max-width: 768px) {
  /* ヘッダー */
  .header-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 16px 24px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    gap: 16px;
  }

  .header-nav.open {
    display: flex;
  }

  .header-btn {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  /* ヒーロー */
  .hero {
    min-height: 100svh;
  }

  .hero-title {
    font-size: 30px;
  }

  .hero-sub {
    font-size: 14px;
  }

  .btn-primary,
  .btn-secondary {
    font-size: 14px;
    padding: 16px 28px;
    width: 85%;
    text-align: center;
  }

  /* 数字 */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: rgba(255, 255, 255, 0.15);
  }

  .stats-item {
    border-right: none;
    background: var(--color-main);
  }

  .stats-number {
    font-size: 38px;
  }

  /* 特徴 */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* 商品 */
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  /* 声 */
  .voices-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* セクション */
  section {
    padding: 72px 0;
  }

  .section-title {
    font-size: 26px;
  }

  /* CTA */
  .cta-title {
    font-size: 26px;
  }

  .cta-buttons {
    flex-direction: column;
  }

  /* フッター */
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* ===== レスポンシブ（480px以下） ===== */
@media (max-width: 480px) {
  .hero-title {
    font-size: 26px;
  }

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

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

  .stats-item {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  }

  .stats-item:last-child {
    border-bottom: none;
  }

  .btn-primary,
  .btn-secondary {
    width: 90%;
  }

  .faq-answer {
    padding-left: 24px;
  }
}