/* ========================================
   ヒロアキトラベル - スタイルシート
   ======================================== */

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

:root {
    --color-primary: #c0392b;
    --color-primary-dark: #962d22;
    --color-primary-light: #e74c3c;
    --color-secondary: #2c3e50;
    --color-accent: #d4a574;
    --color-gold: #c9a96e;
    --color-bg: #fefcf9;
    --color-bg-alt: #f7f3ee;
    --color-text: #2d2d2d;
    --color-text-light: #6b6b6b;
    --color-text-muted: #999;
    --color-white: #ffffff;
    --color-border: #e8e0d6;
    --font-sans: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Noto Serif JP', Georgia, serif;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: 0.3s ease;
}

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

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--color-primary);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   モーダル
   ======================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    cursor: pointer;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    max-width: 520px;
    width: 90%;
    position: relative;
    box-shadow: var(--shadow-xl);
    cursor: pointer;
    overflow: hidden;
    animation: modalSlideIn 0.4s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 16px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-text-light);
    cursor: pointer;
    z-index: 1;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
    line-height: 1;
}

.modal-close:hover {
    background: var(--color-bg-alt);
    color: var(--color-text);
}

.modal-body {
    padding: 48px 40px;
    text-align: center;
}

.modal-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.modal-title {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: 6px;
}

.modal-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-light);
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.modal-divider {
    width: 60px;
    height: 2px;
    background: var(--color-accent);
    margin: 0 auto 20px;
}

.modal-text {
    font-size: 1rem;
    line-height: 1.9;
    color: var(--color-text);
    margin-bottom: 16px;
}

.modal-text strong {
    color: var(--color-primary);
}

.modal-period {
    font-size: 0.9rem;
    color: var(--color-secondary);
    font-weight: 500;
    background: var(--color-bg-alt);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    display: inline-block;
    margin-bottom: 12px;
}

.modal-note {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ========================================
   ヘッダー & ナビゲーション
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    background: transparent;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    z-index: 100;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    color: var(--color-white);
    transition: var(--transition);
}

.header.scrolled .logo-text {
    color: var(--color-secondary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.header.scrolled .nav-link {
    color: var(--color-text);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 100;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: var(--transition);
}

.header.scrolled .nav-toggle span {
    background: var(--color-text);
}

/* ========================================
   ヒーロー
   ======================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
}

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

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.6) 0%,
        rgba(0, 0, 0, 0.3) 50%,
        rgba(0, 0, 0, 0.5) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--color-white);
    max-width: 800px;
}

.hero-subtitle {
    font-size: 1.1rem;
    letter-spacing: 2px;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: 2px;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.9;
    opacity: 0.9;
    margin-bottom: 36px;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    font-family: var(--font-sans);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(192, 57, 43, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-secondary);
    border-color: var(--color-white);
    transform: translateY(-2px);
}

.btn-small {
    padding: 10px 24px;
    font-size: 0.85rem;
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn-small:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

.btn-full {
    width: 100%;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 900;
    line-height: 1;
}

.stat-label {
    font-size: 0.8rem;
    opacity: 0.7;
    margin-top: 4px;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    letter-spacing: 2px;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid rgba(255, 255, 255, 0.6);
    border-bottom: 2px solid rgba(255, 255, 255, 0.6);
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ========================================
   私たちについて
   ======================================== */
.about {
    background: var(--color-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.about-image {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.about-image-badge {
    position: absolute;
    bottom: 24px;
    right: 24px;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 16px 24px;
    border-radius: var(--radius-sm);
    text-align: center;
}

.badge-number {
    display: block;
    font-size: 2rem;
    font-weight: 900;
    line-height: 1;
}

.badge-text {
    font-size: 0.8rem;
    opacity: 0.9;
}

.about-heading {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    color: var(--color-secondary);
    margin-bottom: 24px;
}

.about-story p {
    margin-bottom: 16px;
    color: var(--color-text);
    line-height: 2;
}

.about-values {
    margin-top: 36px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
}

.value-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.value-item h4 {
    font-size: 1rem;
    color: var(--color-secondary);
    margin-bottom: 4px;
}

.value-item p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin: 0;
}

/* ========================================
   旅行プラン
   ======================================== */
.plans {
    background: var(--color-bg-alt);
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.plan-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.plan-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.plan-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.plan-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.plan-card:hover .plan-image img {
    transform: scale(1.05);
}

.plan-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 20px;
}

.plan-duration {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(0, 0, 0, 0.6);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 20px;
}

.plan-body {
    padding: 24px;
}

.plan-location {
    font-size: 0.8rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 8px;
}

.plan-title {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    color: var(--color-secondary);
    margin-bottom: 12px;
    line-height: 1.5;
}

.plan-description {
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.plan-features {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.plan-features li {
    font-size: 0.78rem;
    background: var(--color-bg-alt);
    padding: 5px 12px;
    border-radius: 20px;
    color: var(--color-text-light);
}

.plan-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.price-from {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.price-amount {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--color-primary);
}

.price-tax {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

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

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.testimonial-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-md);
}

.testimonial-stars {
    color: var(--color-gold);
    font-size: 1.1rem;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 0.95rem;
    line-height: 2;
    color: var(--color-text);
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.author-name {
    display: block;
    font-weight: 600;
    color: var(--color-secondary);
    font-size: 0.9rem;
}

.author-trip {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}

/* ========================================
   ギャラリー
   ======================================== */
.gallery {
    background: var(--color-bg-alt);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 280px;
    gap: 16px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
}

.gallery-item-large {
    grid-column: span 2;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: var(--color-white);
    transform: translateY(10px);
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
    opacity: 1;
}

.gallery-caption h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.gallery-caption p {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* ========================================
   お問い合わせ
   ======================================== */
.contact {
    background: var(--color-bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    background: var(--color-white);
    border-radius: var(--radius-sm);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.contact-card h4 {
    font-size: 0.95rem;
    color: var(--color-secondary);
    margin-bottom: 8px;
}

.contact-detail-link {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
    display: block;
    margin-bottom: 6px;
}

.contact-detail-link:hover {
    color: var(--color-primary-dark);
}

.contact-detail {
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 1.7;
}

.contact-hours {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.contact-form-wrapper {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.form-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--color-secondary);
    margin-bottom: 28px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--color-secondary);
    margin-bottom: 6px;
}

.required {
    color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.1);
    background: var(--color-white);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-note {
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 12px;
}

/* ========================================
   フッター
   ======================================== */
.footer {
    background: var(--color-secondary);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo .logo-text {
    color: var(--color-white);
    font-size: 1.2rem;
    font-weight: 700;
}

.footer-description {
    font-size: 0.88rem;
    line-height: 1.9;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    font-size: 0.8rem;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.footer-links h4,
.footer-contact h4 {
    color: var(--color-white);
    font-size: 1rem;
    margin-bottom: 16px;
}

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

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

.footer-links a {
    font-size: 0.88rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-white);
    padding-left: 4px;
}

.footer-contact p {
    font-size: 0.88rem;
    margin-bottom: 10px;
    line-height: 1.7;
}

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

.footer-registration {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-registration p {
    font-size: 0.78rem;
    opacity: 0.6;
    margin-bottom: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8rem;
    opacity: 0.5;
}

/* ========================================
   レスポンシブ
   ======================================== */
@media (max-width: 1024px) {
    .plans-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        padding: 100px 32px 32px;
        gap: 0;
        box-shadow: var(--shadow-xl);
        transition: right 0.3s ease;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu .nav-link {
        color: var(--color-text);
        padding: 14px 0;
        border-bottom: 1px solid var(--color-border);
        display: block;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-description br {
        display: none;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }

    .hero-stats {
        gap: 24px;
        flex-wrap: wrap;
    }

    .stat-number {
        font-size: 1.4rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .about-image img {
        height: 300px;
    }

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

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

    .gallery-grid {
        grid-template-columns: 1fr 1fr;
        grid-auto-rows: 200px;
    }

    .gallery-item-large {
        grid-column: span 1;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .modal-body {
        padding: 36px 24px;
    }

    .modal-title {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-stats {
        gap: 16px;
    }

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