/* ========================================
   リセットと基本設定
   ======================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: #4A4A4A;
    background-color: #F8F9FA; /* わずかに灰色がかった白 */
}
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}
a {
    text-decoration: none;
    color: #4A4A4A;
}

/* ========================================
   ヘッダー
   ======================================== */
.header {
    background-color: #FFFFFF;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 28px;
    font-weight: 700;
    color: #8B4513; /* 茶色 */
    letter-spacing: 1px;
    transition: opacity 0.3s ease;
}
.logo:hover {
    opacity: 0.7;
}
.nav ul {
    list-style: none;
    display: flex;
}
.nav li {
    margin-left: 30px;
}
.nav a {
    font-weight: 400;
    font-size: 15px;
    position: relative;
    padding-bottom: 5px;
    transition: color 0.3s ease;
    color: #8B4513; /* ナビゲーションリンクの色を茶色に統一 */
}
.nav a:hover {
    color: #A0522D; /* ホバー時の色を少し濃い茶色に */
}
.nav a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #A0522D; /* アンダーラインの色も統一 */
    transition: width 0.3s ease;
}
.nav a:hover:after {
    width: 100%;
}

/* ========================================
   ヒーローセクション
   ======================================== */
.hero {
    background: linear-gradient(rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.6)), url('https://via.placeholder.com/1600x900.png?text=Professional+Meeting+Space') no-repeat center center/cover;
    background-size: cover;
    background-position: center;
    color: #4A4A4A;
    text-align: center;
    padding: 180px 0;
}
.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 20px;
    color: #8B4513;
}
.hero-subtitle {
    font-size: 20px;
    font-weight: 300;
    margin-bottom: 40px;
    line-height: 1.5;
}

/* ========================================
   セクション共通スタイル
   ======================================== */
.section {
    padding: 100px 0;
    text-align: center;
}
.section:nth-child(even) {
    background-color: #F0F8FF; /* 淡い水色 */
}
.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #8B4513; /* 全体を茶色に統一 */
    letter-spacing: 1px;
}
.section-title span {
    color: #8B4513; /* spanも茶色に統一（変更なし） */
}
.section-text {
    max-width: 800px;
    margin: 0 auto 1.5rem;
    font-weight: 300;
    line-height: 2;
}

/* ========================================
   ボタン
   ======================================== */
.btn {
    background-color: #8B4513;
    color: #FFFFFF;
    font-weight: 700;
    padding: 15px 40px;
    border-radius: 50px;
    display: inline-block;
    transition: all 0.3s ease;
}
.btn:hover {
    background-color: #A0522D;
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
}
.btn-small {
    background-color: #FFFFFF;
    color: #8B4513;
    border: 1px solid #8B4513;
    font-weight: 700;
    padding: 10px 25px;
    border-radius: 50px;
    transition: all 0.3s ease;
}
.btn-small:hover {
    background-color: #8B4513;
    color: #FFFFFF;
}

/* ========================================
   会議室一覧
   ======================================== */
.room-list {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 60px;
}
.room-item {
    background-color: #FFFFFF;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 300px;
    text-align: left;
}
.room-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}
.room-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
.room-content {
    padding: 25px;
}
.room-content h4 {
    font-size: 22px;
    margin: 0 0 10px;
    color: #8B4513;
}
.room-content p {
    font-size: 14px;
    margin: 0 0 15px;
    color: #708090;
    line-height: 1.6;
}

/* ========================================
   フッター
   ======================================== */
.footer {
    background-color: #F0F8FF;
    color: #8B4513;
    text-align: center;
    padding: 30px 0;
    font-size: 14px;
}
.footer p {
    margin: 0;
}

/* ========================================
   アニメーション用CSS (左右から交互に)
   ======================================== */
.fade-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 1s ease-out, transform 1s ease-out;
}
.fade-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 1s ease-out, transform 1s ease-out;
}
.is-visible {
    opacity: 1;
    transform: translateX(0);
}

/* ========================================
   レスポンシブ対応
   ======================================== */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
    }
    .nav {
        margin-top: 15px;
    }
    .nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    .nav li {
        margin: 0 10px;
    }
    .hero-title {
        font-size: 36px;
    }
    .section-title {
        font-size: 30px;
    }
}

/* ========================================
   feeltureについてページ
   ======================================== */
.about-us .section-title,
.company-profile .section-title {
    margin-bottom: 50px;
}
.ceo-message {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    margin-bottom: 80px;
    text-align: left;
}
.ceo-photo {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 50%;
    flex-shrink: 0;
}
.ceo-text {
    flex-grow: 1;
}
.ceo-text p {
    margin-bottom: 1.5rem;
}
.company-profile-table {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-collapse: collapse;
    text-align: left;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}
.company-profile-table th,
.company-profile-table td {
    padding: 20px;
    border-bottom: 1px solid #E0E0E0;
}
.company-profile-table th {
    background-color: #F8F9FA;
    font-weight: 700;
    width: 150px;
    color: #8B4513; /* 茶色に統一 */
}
.company-profile-table tr:last-child th,
.company-profile-table tr:last-child td {
    border-bottom: none;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .ceo-message {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

/* ========================================
   お問い合わせフォームページ
   ======================================== */
.contact-form {
    padding-top: 50px;
}
.contact-form-container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
    padding: 40px;
    background-color: #FFFFFF;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}
.form-group {
    margin-bottom: 25px;
}
.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 10px;
    color: #4A4A4A;
    font-size: 15px;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #E0E0E0;
    border-radius: 6px;
    font-size: 16px;
    font-family: 'Noto Sans JP', sans-serif;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #8B4513;
    box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.1);
}
.form-group textarea {
    resize: vertical;
}
.required {
    font-size: 12px;
    font-weight: 700;
    color: #FFFFFF;
    background-color: #A0522D;
    padding: 3px 8px;
    border-radius: 4px;
    margin-left: 10px;
    vertical-align: middle;
}
.contact-form-container .btn {
    width: 100%;
    padding: 15px;
    font-size: 18px;
}

/* ========================================
   会議室詳細ページ
   ======================================== */
.all-rooms-list {
    margin-top: 30px;
}
.all-rooms-list .room-item {
    width: calc(33.333% - 20px);
    margin-bottom: 30px;
}

/* ========================================
   料金プラン詳細ページ
   ======================================== */
.price-all {
    padding-top: 50px;
}
.price-list {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 40px;
}
.price-item {
    background-color: #FFFFFF;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    width: 300px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.price-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}
.price-item h3 {
    font-size: 24px;
    color: #8B4513;
    margin-bottom: 20px;
}
.price-value {
    font-size: 16px;
    color: #708090;
    margin-bottom: 30px;
}
.price-value span {
    font-size: 48px;
    font-weight: 700;
    color: #8B4513;
}
.price-item ul {
    list-style: none;
    text-align: left;
    margin-bottom: 30px;
    padding: 0;
}
.price-item li {
    position: relative;
    padding-left: 25px;
    font-size: 15px;
    color: #4A4A4A;
    line-height: 2;
}
.price-item li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #8B4513;
    font-weight: 700;
}
.price-item.recommended {
    background-color: #8B4513;
}
.price-item.recommended h3,
.price-item.recommended .price-value,
.price-item.recommended .price-value span,
.price-item.recommended li {
    color: #FFFFFF;
}
.price-item.recommended li::before {
    color: #FFFFFF;
}
.price-item.recommended .btn {
    background-color: #FFFFFF;
    color: #8B4513;
    border: 1px solid #FFFFFF;
}
.price-item.recommended .btn:hover {
    background-color: rgba(255, 255, 255, 0.9);
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .all-rooms-list .room-item {
        width: 100%;
    }
    .price-item {
        width: 100%;
    }
}