/* ========================================
   地域デンタルナビ - メインスタイルシート
   ======================================== */

/* 基本設定 */
:root {
    --primary-color: #0066cc;
    --secondary-color: #00a8e8;
    --accent-color: #ff6b35;
    --success-color: #2ecc71;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #f8f9fa;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* ========================================
   ヘッダー
   ======================================== */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

.logo a {
    display: flex;
    align-items: center;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 28px;
    margin-right: 10px;
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

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

.btn-phone {
    background-color: var(--accent-color);
    color: var(--white);
    padding: 12px 25px;
    border-radius: 50px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-phone:hover {
    background-color: #e55a2b;
    transform: translateY(-2px);
}

/* ========================================
   ボタン共通
   ======================================== */
.btn-primary {
    background-color: var(--accent-color);
    color: var(--white);
    padding: 15px 35px;
    border-radius: 50px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #e55a2b;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-large {
    padding: 18px 45px;
    font-size: 18px;
}

.btn-secondary {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 10px 25px;
    border-radius: 50px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-secondary:hover {
    background-color: #0052a3;
}

/* ========================================
   ヒーローセクション
   ======================================== */
.hero {
    background: linear-gradient(135deg, #0066cc 0%, #00a8e8 100%);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.95;
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.badge {
    background-color: rgba(255,255,255,0.2);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ========================================
   セクション共通
   ======================================== */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    color: var(--text-light);
    margin-bottom: 50px;
}

/* ========================================
   地域選択セクション
   ======================================== */
.regions {
    background-color: var(--white);
}

.region-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.region-card {
    background-color: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 15px;
    padding: 30px;
    transition: all 0.3s ease;
    display: block;
}

.region-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.region-card.featured {
    border-color: var(--accent-color);
    background: linear-gradient(135deg, #fff 0%, #fffaf6 100%);
}

.region-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.region-icon i {
    font-size: 28px;
    color: var(--white);
}

.region-card h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--text-color);
}

.region-feature {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 14px;
}

.region-desc {
    color: var(--text-light);
    margin-bottom: 20px;
    min-height: 48px;
}

.region-stats {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.region-stats span {
    background-color: var(--bg-color);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.region-stats i {
    color: var(--primary-color);
}

/* ========================================
   選び方ガイド
   ======================================== */
.guide {
    background-color: var(--bg-color);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.guide-item {
    text-align: center;
    position: relative;
}

.guide-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    font-size: 24px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.guide-icon {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.guide-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-color);
}

.guide-item p {
    color: var(--text-light);
    line-height: 1.8;
}

.consultation-box {
    background: linear-gradient(135deg, #0066cc 0%, #00a8e8 100%);
    color: var(--white);
    padding: 50px;
    border-radius: 15px;
    text-align: center;
}

.consultation-box h3 {
    font-size: 26px;
    margin-bottom: 20px;
}

.consultation-box p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.95;
}

/* ========================================
   歯の悩み
   ======================================== */
.concerns {
    background-color: var(--white);
}

.concerns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 25px;
}

.concern-item {
    background-color: var(--bg-color);
    padding: 30px 20px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
}

.concern-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.concern-item i {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.concern-item h4 {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text-color);
}

.concern-item p {
    font-size: 13px;
    color: var(--text-light);
}

/* ========================================
   よくある質問
   ======================================== */
.faq {
    background-color: var(--bg-color);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--white);
    border-radius: 12px;
    margin-bottom: 20px;
    overflow: hidden;
}

.faq-question {
    padding: 25px;
    font-weight: 600;
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    background-color: var(--white);
    transition: all 0.3s ease;
}

.faq-question:hover {
    background-color: var(--bg-color);
}

.faq-question i {
    font-size: 24px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.faq-answer {
    padding: 0 25px 25px 64px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ========================================
   フッター
   ======================================== */
.footer {
    background-color: #2c3e50;
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 22px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-section h4 {
    font-size: 18px;
    margin-bottom: 15px;
}

.footer-section p {
    color: rgba(255,255,255,0.8);
    margin-bottom: 15px;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 10px;
}

.footer-section a {
    color: rgba(255,255,255,0.8);
}

.footer-section a:hover {
    color: var(--white);
}

.footer-contact {
    background-color: rgba(255,255,255,0.1);
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
}

.footer-contact a {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
    display: block;
    margin: 5px 0;
}

.footer-contact span {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    color: rgba(255,255,255,0.7);
}

/* ========================================
   TOPへ戻るボタン
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--accent-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: #e55a2b;
    transform: translateY(-5px);
}

/* ========================================
   地域ページ専用スタイル
   ======================================== */
.page-header {
    background: linear-gradient(135deg, #0066cc 0%, #00a8e8 100%);
    color: var(--white);
    padding: 60px 0 40px;
}

.breadcrumb {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    flex-wrap: wrap;
}

.breadcrumb a {
    color: rgba(255,255,255,0.8);
}

.breadcrumb a:hover {
    color: var(--white);
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-subtitle {
    font-size: 18px;
    opacity: 0.95;
}

.region-info {
    background-color: var(--white);
    padding: 60px 0;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.info-card {
    background-color: var(--bg-color);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
}

.info-card i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.info-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.info-card p {
    color: var(--text-light);
}

/* 問い合わせフォーム */
.contact-form {
    background-color: var(--bg-color);
    padding: 80px 0;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 50px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-color);
}

.required {
    color: var(--accent-color);
    margin-left: 5px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 5px;
}

.checkbox-group label {
    margin: 0;
    font-weight: normal;
}

.form-submit {
    text-align: center;
    margin-top: 40px;
}

.btn-submit {
    background-color: var(--accent-color);
    color: var(--white);
    padding: 18px 60px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 18px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    background-color: #e55a2b;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* ========================================
   レスポンシブデザイン
   ======================================== */
@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .section-title {
        font-size: 28px;
    }

    .region-grid,
    .guide-grid,
    .concerns-grid {
        grid-template-columns: 1fr;
    }

    .consultation-box {
        padding: 30px 20px;
    }

    .page-title {
        font-size: 28px;
    }

    .form-container {
        padding: 30px 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .btn-phone span {
        display: none;
    }

    .hero {
        padding: 50px 0;
    }

    section {
        padding: 50px 0;
    }

    .hero-badges {
        flex-direction: column;
        align-items: center;
    }
}