/* ===== 基本設定とデザイン刷新 ===== */
:root {
    /* 色の再定義 */
    --teal-green: #007A7A; /* 深く落ち着いたティール */
    --beige: #F9F7F2; /* 明るく上品なベージュ */
    --sienna-brown: #9A5B43; /* リッチなブラウン */
    --dark-gray: #3D4043; /* 柔らかいダークグレー */
    --white: #FFFFFF;
    --gold: #C09543;

    /* 書体の定義 */
    --font-sans: 'Noto Sans JP', sans-serif;
    --font-serif: 'Noto Serif JP', serif;
    
    /* UI要素の定義 */
    --border-radius: 12px; /* 角丸を少し大きめに */
    --shadow-soft: 0 4px 15px rgba(0, 0, 0, 0.08); /* 柔らかい影 */
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.12); /* ホバー時の影 */
}

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--dark-gray);
    background-color: var(--white);
    line-height: 1.8; /* 行間を少し広げて読みやすく */
    -webkit-font-smoothing: antialiased; /* 文字を滑らかに */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-sans);
    font-weight: 700;
}

a {
    color: var(--teal-green);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: var(--sienna-brown);
    text-decoration: none;
}

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

.container {
    max-width: 1200px; /* コンテンツ幅を少し広げる */
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 80px 0; /* セクション間の余白を広げる */
}

.section-title {
    font-family: var(--font-serif); /* セリフ体で見出しを上品に */
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    color: var(--dark-gray);
    letter-spacing: 2px; /* 文字間を調整 */
    margin-bottom: 60px;
}

/* ===== ヘッダー ===== */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 15px 0;
    border-bottom: 1px solid #e9e9e9;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px); /* すりガラス効果 */
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title {
    font-size: 1.4rem;
    color: var(--dark-gray);
    margin: 0;
    font-weight: 700;
}

.site-title a {
    color: inherit;
    text-decoration: none;
}

.nav-menu ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    gap: 30px;
}
.nav-menu a {
    font-weight: 700;
}


.hamburger-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 110;
}

.hamburger-bar {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--dark-gray);
    margin: 6px 0;
    transition: all 0.3s ease-in-out;
}

/* ===== ① トップ / メインビジュアル ===== */
.hero {
    background-image: url(https://nishihokkaido.com/omiyage/img/main.jpeg);
    background-size: cover;
    background-position: center center;
    padding: 0;
    position: relative;
    height: 0;
    padding-bottom: 31.25%; /* アスペクト比を1920:600に保つ (600 / 1920) */
}

/* ===== 結果発表セクション ===== */
.results-section {
    background: linear-gradient(135deg, #FBEB9B 0%, #C09543 100%);
}
.results-intro {
    text-align: center;
    margin-bottom: 50px;
    font-size: 1.1rem;
    color: var(--dark-gray);
    line-height: 1.9;
}
.prize-title-grand, .prize-title-gold {
    text-align: center;
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 30px;
    color: #87642A;
    text-shadow: 1px 1px 2px rgba(255,255,255,0.5);
}
.grand-prize {
    margin-bottom: 60px;
}
.grand-prize-card {
    max-width: 350px;
    margin: 0 auto;
}
.prize-card-image {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
}
.prize-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.gold-prize-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}
.prize-card {
    box-shadow: var(--shadow-hover);
    border-color: #C09543;
}
.prize-card .nominee-card-body {
    padding: 20px;
    text-align: center;
}
.prize-card .nominee-card-body h5 {
    margin: 10px 0 0;
    font-size: 1.1rem;
}

/* ===== 受賞者メッセージセクション ===== */
.winner-message-section {
    background-color: var(--beige);
}
.message-content {
    display: flex;
    gap: 40px;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
}
.message-photo {
    flex-shrink: 0;
    width: 200px;
}
.message-photo img {
    border-radius: 50%;
    border: 5px solid var(--white);
    box-shadow: var(--shadow-soft);
}
.message-body h4 {
    font-family: var(--font-serif);
    color: var(--sienna-brown);
    font-size: 1.5rem;
    margin: 0 0 15px;
}


/* ===== ② 開催概要 ===== */
.about-section {
    background-color: var(--white);
}

.about-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
}

.gold-prize {
    color: var(--gold);
    font-weight: 700;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.info-box {
    background-color: var(--beige);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid #eee;
}

.info-box h4 {
    color: var(--sienna-brown);
    margin-top: 0;
}

.notes {
    max-width: 800px;
    margin: 0 auto 40px;
    background-color: var(--beige);
    padding: 30px;
    border-radius: var(--border-radius);
}
.notes ul {
    padding-left: 20px;
    list-style: '※ ';
}

.motto-selection-info {
    max-width: 800px;
    margin: 50px auto;
    padding: 30px;
    background-color: var(--beige);
    border-radius: var(--border-radius);
    border: 1px solid #e9e9e9;
}

.motto-selection-info h4 {
    text-align: center;
    color: var(--sienna-brown);
    margin-top: 0;
}

.motto-selection-info h5 {
    text-align: center;
    margin-top: 30px;
}

.motto-links {
    list-style: none;
    padding: 0;
    text-align: center;
}

.motto-links li {
    margin-bottom: 10px;
}

.motto-links a {
    font-weight: 700;
}

/* 主催者メッセージ */
.organizer-message {
    max-width: 900px;
    margin: 60px auto;
    display: flex;
    align-items: center;
    gap: 40px;
}
.message-image {
    flex: 1;
    min-width: 250px;
}
.message-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
}
.message-text {
    flex: 2;
}
.message-text h4 {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    color: var(--sienna-brown);
    margin-top: 0;
    margin-bottom: 20px;
}
.message-text p {
    font-size: 0.95rem;
    margin-bottom: 1em;
}

.organizer-text {
    text-align: center;
    font-size: 1.1rem;
    margin-top: 50px;
}

.organizer-text a {
    color: var(--dark-gray);
}

/* ===== 豪華プレゼントキャンペーン ===== */
.campaign-section {
    background-color: var(--beige);
}

.campaign-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.campaign-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.campaign-card {
    background-color: var(--white);
    border: 1px solid #eee;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    padding: 30px;
    text-align: center;
}

.campaign-card h4 {
    color: var(--sienna-brown);
    font-size: 1.6rem;
    margin-top: 0;
    margin-bottom: 20px;
    line-height: 1.4;
}

.campaign-image-placeholder {
    width: 100%;
    aspect-ratio: 4 / 3;
    background-color: #e9e9e9;
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 20px;
}

.campaign-image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.campaign-description {
    text-align: left;
    font-size: 1rem;
}

.supporter-text {
    display: block;
    font-size: 0.85rem;
    color: #555;
    margin-top: 15px;
    text-align: right;
}

.supporter-text-emphasis {
    font-weight: 700;
    color: var(--sienna-brown);
    font-size: 0.9rem;
    padding: 8px 10px;
    background-color: #fffbe6;
    border-radius: 8px;
    border: 1px solid #ffe58f;
}

.supporter-text-emphasis a {
    color: var(--sienna-brown);
}

.instagram-follow-section {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
}

.instagram-follow-section h5 {
    font-size: 1.4rem;
    color: var(--teal-green);
    margin-top: 0;
}

.instagram-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}

.instagram-list li a {
    display: block;
    padding: 8px 16px;
    background-color: var(--beige);
    border: 1px solid #ddd;
    border-radius: 20px;
    font-weight: 700;
    transition: all 0.2s;
}

.instagram-list li a:hover {
    background-color: var(--teal-green);
    color: var(--white);
    border-color: var(--teal-green);
    text-decoration: none;
}

/* ===== ③ ノミネートお土産紹介 ===== */
.nominees-section {
    background-color: #f8f9fa;
}

.nominee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.nominee-card {
    background-color: var(--white);
    border: 1px solid #e9e9e9;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s, box-shadow 0.3s;
}
.nominee-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.nominee-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.nominee-card-body {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.nominee-card-body h5 {
    margin: 10px 0;
    font-size: 1.3rem;
}

.nominee-card-body .description {
    margin: 0 0 15px;
    font-size: 0.95rem;
    flex-grow: 1;
}

.nominee-card-body .recommendation {
    font-size: 0.95rem;
    background-color: var(--beige);
    padding: 15px;
    border-radius: 8px;
    margin: 0;
    border-left: 4px solid var(--sienna-brown);
}

.lom-badge {
    display: inline-block;
    background: linear-gradient(45deg, var(--sienna-brown), #b96a4a);
    color: var(--white);
    padding: 5px 10px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 700;
}

/* ===== フッター ===== */
.footer {
    background-color: var(--dark-gray);
    color: #ccc;
    text-align: center;
    padding: 50px 24px;
}

.footer a {
    color: var(--white);
    text-decoration: underline;
    text-underline-offset: 4px;
}

.special-sponsor {
    margin-bottom: 30px;
    font-size: 1.1rem;
    font-weight: 700;
}

.footer-links-title {
    margin-bottom: 15px;
    opacity: 0.8;
}

.social-links {
    margin-bottom: 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 20px;
}

.social-links a {
    opacity: 0.8;
}
.social-links a:hover {
    opacity: 1;
}

.organizer a {
    color: #ccc;
}
.organizer a:hover {
    color: var(--white);
}

.copyright {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-top: 30px;
}

/* ===== スマートフォン表示への対応 ===== */
@media (max-width: 768px) {
    section {
        padding: 50px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }

    .site-title {
        font-size: 1rem;
    }

    .hamburger-btn {
        display: block;
    }

    .hamburger-btn.is-active .hamburger-bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .hamburger-btn.is-active .hamburger-bar:nth-child(2) {
        opacity: 0;
    }
    .hamburger-btn.is-active .hamburger-bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        border-top: 1px solid #ddd;
    }
    
    .nav-menu.is-active {
        display: block;
    }

    .nav-menu ul {
        flex-direction: column;
        gap: 0;
        width: 100%;
    }
    
    .nav-menu li a {
        display: block;
        padding: 16px;
        text-align: center;
        border-bottom: 1px solid #f0f0f0;
    }

    .hero {
        height: 200px;
        padding-bottom: 0;
        background-size: cover;
    }

    .results-intro {
        text-align: left;
    }
    .prize-title-grand, .prize-title-gold {
        font-size: 2.2rem;
    }
    .gold-prize-grid {
        grid-template-columns: 1fr;
    }

    .message-content {
        flex-direction: column;
    }
    
    .organizer-message {
        flex-direction: column;
        gap: 30px;
    }

    .campaign-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .campaign-card h4 {
        font-size: 1.4rem;
    }

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

    .footer-links-title {
        font-size: 0.9rem;
    }

    .social-links {
        gap: 8px 12px;
    }
    .social-links a {
        font-size: 0.85rem;
    }
}