@charset "utf-8";

/* 基本の設定
================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", sans-serif;
  background-color: #f4f7f9;
  color: #445566;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}



/* ヘッダー＆インフォ
================================================== */
header {
  text-align: center;
  padding: 150px 20px;
  background: linear-gradient(rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.4)), url('../images/title.jpg') center / cover no-repeat;
}
header h1 {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 300;
  letter-spacing: 0.15em;
  color: #fff;
  margin-bottom: 20px;
}
header p {
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  letter-spacing: 0.1em;
  color: #fff;
}
.intro-text {
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 24px;
  text-align: center;
}
.intro-text h2 {
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 300;
  color: #5d7a8c;
  margin-bottom: 30px;
}
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}



/* ナビゲーション
================================================== */
.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 150px;
}
.card {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s, box-shadow 0.3s;
  text-align: center;
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}
.stone-img {
  height: 180px;
  width: 100%;
  overflow: hidden;
}
.stone-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}
.aquamarine { 
    background: linear-gradient(45deg, #b3e5fc, #81d4fa); 
}
.moonstone { 
    background: linear-gradient(45deg, #e3f2fd, #bbdefb); 
}
.sapphire { 
    background: linear-gradient(45deg, #3949ab, #5c6bc0); 
}
.tanzanite { 
    background: linear-gradient(45deg, #7986cb, #9575cd); 
}
.card .content {
  padding: 20px;
  flex-grow: 1;
}
.month {
  display: block;
  font-size: 0.75rem;
  color: #90a4ae;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 8px;
}
.card h2 {
  font-size: 1.25rem;
  margin-bottom: 10px;
  font-weight: 400;
}
.description {
  font-size: 0.85rem;
  margin-bottom: 15px;
}
.btn {
  display: inline-block;
  padding: 8px 20px;
  border: 1px solid #90a4ae;
  text-decoration: none;
  color: #546e7a;
  font-size: 0.8rem;
  border-radius: 50px;
  transition: 0.3s;
}
.btn:hover {
  background: #546e7a;
  color: white;
}



/* 誕生石の意味
================================================== */
.story-item {
  margin-bottom: 150px;
}
.story-intro {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 60px;
}
.story-item.reverse .story-intro {
  flex-direction: row-reverse;
}
.story-image {
  flex: 1;
  height: 450px;
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}
.story-image img {
  width: 100%;
  height: 100%;
  object-fit: cover; 
  object-position: center;
  display: block;
}
.story-text {
  flex: 1;
}



/* おすすめアイテム
================================================== */
.recommend-box {
  margin-top: 25px;
  padding: 20px 15px;
  background-color: #ffffff;
  border: 1px solid #e0eafc;
  border-radius: 12px;
  text-align: left;
}
.recommend-box h3 {
  font-size: 0.95rem;
  font-weight: bold;
  color: #5d7a8c;
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}
.recommend-box ul {
  list-style: none;
}
.recommend-box ul li {
  font-size: 0.85rem;
  color: #546e7a;
  line-height: 1.6;
  position: relative;
  padding-left: 15px;
  margin-bottom: 8px;
}
.recommend-box ul li:last-child {
  margin-bottom: 0;
}
.recommend-box ul li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 0.55em;
  width: 5px;
  height: 5px;
  background-color: #90a4ae;
  border-radius: 50%;
}
.sub-title {
  display: block;
  font-size: 0.9rem;
  color: #90a4ae;
  margin-bottom: 10px;
}
.aquamarine-bg { 
    background: linear-gradient(135deg, #e0f7fa, #b2ebf2); 
}
.moonstone-bg { 
    background: linear-gradient(135deg, #f5f5f5, #e0e0e0); 
}
.sapphire-bg { 
    background: linear-gradient(135deg, #1a237e, #3f51b5); 
}
.tanzanite-bg { 
    background: linear-gradient(135deg, #311b92, #5e35b1); 
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.product-card {
  background: #fff;
  padding: 20px;
  border-radius: 5px;
  text-align: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.02);
}
.product-thumb {
  aspect-ratio: 1;
  background: #f8fafb;
  border-radius: 10px;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #cfdef3;
  font-weight: bold;
}
.product-thumb img{
  width: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}
.product-name {
  font-size: 0.9rem;
  font-weight: bold;
  margin-bottom: 5px;
}
.product-price {
  font-size: 0.85rem;
  color: #78909c;
}
.section-footer {
  text-align: center;
  margin-top: 40px;
}
.btn-primary {
  display: inline-block;
  margin-top: 20px;
  padding: 15px 40px;
  background-color: #5d7a8c;
  color: #ffffff;
  text-decoration: none;
  border-radius: 50px;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(93, 122, 140, 0.2);
}
.btn-primary:hover {
  background-color: #455a64;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(93, 122, 140, 0.3);
}



/* スタイリングガイド
================================================== */
.styling-guide {
  padding: 80px 0;
}
.styling-title {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 300;
  margin-bottom: 10px;
}
.styling-lead {
  text-align: center;
  color: #90a4ae;
  margin-bottom: 50px;
}
.styling-item {
  background: white;
  padding: clamp(30px, 5vw, 60px);
  border-radius: 30px;
  margin-bottom: 60px;
}
.styling-header {
  text-align: center;
  margin-bottom: 40px;
}
.stone-tag {
  display: inline-block;
  padding: 5px 20px;
  border-radius: 20px;
  font-size: 0.75rem;
  margin-bottom: 10px;
}
.tag-aqua { 
    border: 1px solid #81d4fa; 
    color: #81d4fa; 
}
.tag-moon { 
    border: 1px solid #90a4ae; 
    color: #90a4ae; 
}
.tag-sapph { 
    border: 1px solid #3949ab; 
    color: #3949ab; 
}
.tag-tanz { 
    border: 1px solid #7986cb; 
    color: #7986cb; 
}

.styling-content {
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.photo-placeholder {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #f0f4f7;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #b0bec5;
  overflow: hidden;
  position: relative;
}
.photo-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover; 
  object-position: center;
  display: block;
  position: absolute;
  top: 0;
  left: 0;
}
.styling-meta-container {
  border-top: 1px solid #f0f4f7;
  padding-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 25px;
}
.meta-section {
  text-align: left;
}
.meta-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: bold;
  color: #fff;
  background-color: #5d7a8c;
  padding: 3px 12px;
  border-radius: 4px;
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}
.meta-value {
  font-size: 0.9rem;
  color: #445566;
  line-height: 1.7;
  padding-left: 5px;
}
.coordinate-items-row {
  border-top: none;
  padding-top: 10px;
  margin-top: 5px;
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}
.item-box {
  display: flex;
  align-items: center;
  gap: 40px;
  width: 100%;
}
.item-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}
.item-thumb {
  width: 200px;
  flex-shrink: 0;
  margin: 0;
  background: #f8fafb;
  border-radius: 5%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  overflow: hidden;
  border: 1px solid #e0eafc;
}
.item-thumb a {
  display: block;
  width: 100%;
  height: 100%;
}
.item-thumb img {
  width: 100%;
  object-fit: cover; 
}
.item-name {
  display: block;
  font-size: 0.95rem;
  font-weight: bold;
  color: #445566;
  line-height: 1.4;
}
.item-catch {
  display: block;
  font-size: 0.8rem;
  color: #78909c;
  line-height: 1.6;
}
.item-price {
  display: block;
  font-size: 0.9rem;
  font-weight: bold;
  color: #5d7a8c;
  line-height: 1.2;
}



/* 番外編
================================================== */
.extra-edition {
  margin-top: 60px;
  padding: 60px 20px;
  background-color: #ffffff;
  border-radius: 40px;
}
.extra-header {
  text-align: center;
  margin-bottom: 50px;
}
.extra-tag {
  font-size: 0.7rem;
  color: #cfd8dc;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  display: block;
  margin-bottom: 10px;
}
.extra-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
.extra-stone-info {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 25px;
}
.stone-circle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  flex-shrink: 0;
  object-fit: cover;
}
.extra-styling-box {
  background-color: #f8fafb;
  padding: 25px;
  border-radius: 20px;
}

.extra-styling-box h4{
  margin-bottom: 20px;
  text-align: center;
}
.extra-model-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  margin-bottom: 25px;
  overflow: hidden;
}
.extra-model-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.extra-products {
  display: block;
  width: 100%;
}
.extra-products .item-thumb {
  width: 100px;
  flex-shrink: 0;
}
.extra-products .item-box {
  gap: 20px;
}


/* 誕生石入れサービス
================================================== */
.birthstone-service {
  margin-top: 60px;
  padding: 80px 24px;
  background: linear-gradient(135deg, #f4f7f9 0%, #e0eafc 100%);
  border-radius: 40px;
  text-align: center;
}
.service-container {
  max-width: 800px;
  margin: 0 auto;
}
.service-header {
  margin-bottom: 40px;
}
.service-tag {
  font-size: 0.7rem;
  color: #90a4ae;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  display: block;
  margin-bottom: 10px;
}
.service-header h2 {
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 300;
  color: #5d7a8c;
  margin-bottom: 15px;
}
.service-lead {
  font-size: 0.95rem;
  color: #78909c;
}
.service-desc {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 40px;
  color: #445566;
}
.service-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-bottom: 40px;
  text-align: left;
}
.feature-item {
  background: rgba(255, 255, 255, 0.7);
  padding: 25px;
  border-radius: 20px;
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255, 255, 255, 0.5);
}
.feature-num {
  display: block;
  font-size: 1.2rem;
  font-weight: 300;
  color: #90a4ae;
  margin-bottom: 5px;
}
.feature-item h4 {
  font-size: 1rem;
  color: #5d7a8c;
  margin-bottom: 10px;
}
.feature-item p {
  font-size: 0.85rem;
  line-height: 1.6;
  color: #546e7a;
}
.service-products-area {
  margin: 50px 0 20px;
  text-align: center;
}
.service-products-title {
  font-size: 1.1rem;
  font-weight: bold;
  color: #5d7a8c;
  margin-bottom: 25px;
  letter-spacing: 0.05em;
}
.service-product-grid {
  display: grid;
  /* PC時は4カラム */
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.service-product-card {
  background: #ffffff;
  padding: 15px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.6);
}
.service-product-thumb {
  aspect-ratio: 1;
  background: #f8fafb;
  border-radius: 8px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.service-product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.3s ease;
}
.service-product-card:hover .service-product-thumb img {
  transform: scale(1.05);
}
.service-product-name {
  font-size: 0.75rem;
  font-weight: bold;
  margin-bottom: 5px;
  color: #445566;
}
.service-product-price {
  font-size: 0.8rem;
  color: #78909c;
}


/* ロゴ
================================================== */
.brand-symbol-area {
  padding: 80px 0 30px;
  text-align: center;
}
.brand-icon {
  width: 100%;
  margin: 0 auto;
}
.brand-icon img{
  width: 200px;
}
.brand-name-sub{
    font-size:0.85rem;
}


/* フッター
================================================== */
footer {
  background-color: #eceff1;
  padding: 30px 20px;
  color: #546e7a;
  border-top: 1px solid #e0e0e0;
}
.footer-nav {
  display: flex;
  justify-content: center; /* 横方向の中央揃え */
  margin: 0;
  padding-bottom: 30px;
}
.footer-column {
  text-align: center;
}
.footer-column h4 {
  margin-top: 0;
  margin-bottom: 15px;
}
.footer-column ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  padding: 0;
  margin: 0;
}
.footer-column ul li {
  margin: 0;
}
.footer-column ul li a {
  text-decoration: none;
  color: #78909c;
  font-size: 0.85rem;
}



/* ここからスマホ用
================================================== */
@media (max-width: 900px) {
.grid {
    grid-template-columns: repeat(2, 1fr);
}
.story-intro {
    display: flex; /* flexを維持 */
    flex-direction: column !important;
    gap: 20px;
    text-align: center;
}
.story-item.reverse .story-intro {
    flex-direction: column !important;
}
.story-image {
    width: 100%;
    height: 300px;
    flex: none;
}
.story-text {
    width: 100%;
    padding: 0 10px;
}
.story-text h2{
    margin-bottom: 15px;
}
.extra-grid {
    grid-template-columns: 1fr;
}
.service-product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}
}

/* スマホ (600px以下) */
@media (max-width: 600px) {
header {
    padding: 150px 20px;
}
.grid {
    grid-template-columns: 1fr;
    gap: 25px;
}
.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr !important;
    gap: 15px;
}
.product-card {
    padding: 15px 10px;
}
.product-thumb {
    aspect-ratio: 1;
    margin-bottom: 10px;
}
.product-name {
    font-size: 0.85rem;
}
.product-price {
    font-size: 0.8rem;
}
.coordinate-items-row {
    justify-content: center;
}
.styling-item {
    padding: 25px 15px;
}
.item-thumb {
    width: 120px;
  }
.photo-placeholder {
    aspect-ratio: 4 / 3;
}
.birthstone-service {
    padding: 60px 20px;
}
.service-features {
    grid-template-columns: 1fr;
    gap: 20px;
}
.service-product-grid {
    gap: 10px;
}
.service-product-card {
    padding: 10px;
}
.service-product-name {
    font-size: 0.8rem;
}
.footer-nav {
    grid-template-columns: 1fr;
    text-align: center;
}
}



/* PCのみ
================================================== */

@media(max-width:788px){
.pc{
    display: none !important;
}
}

/* SPのみ
================================================== */

@media(min-width:789px){
.sp{
    display: none !important;
}
}