/* 
 * 新宿間税会 Website Redesign
 * Green-themed Modern Design
 */

/* Base Styles and Variables */
:root {
    --color-primary: #0A6640; /* Main green */
    --color-primary-light: #1E8559;
    --color-primary-dark: #064023;
    --color-secondary: #88D498; /* Light green */
    --color-accent: #1A535C; /* Deep blue */
    --color-background: #F7F9F9; /* Off-white */
    --color-text: #333333; /* Dark gray */
    --color-text-light: #666666;
    --color-white: #FFFFFF;
    --color-border: #E0E0E0;
    --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --border-radius: 6px;
    --container-width: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    overflow-x: hidden;
}

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

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

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

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--color-primary);
    position: relative;
    padding-bottom: 10px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-primary);
}

/* Animation Classes */
.animate-fade-in {
    opacity: 0;
    animation: fadeIn 1s ease forwards;
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    box-shadow: var(--box-shadow);
    z-index: 100;
    transition: var(--transition);
    height: var(--header-height);
}

.header.scrolled {
    height: 60px;
    background-color: rgba(255, 255, 255, 0.95);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo-img {
    width: 160px;
    height: 60px;
    display: block;
}

.logo-link {
    display: block;
    transition: var(--transition);
}

.logo-link:hover {
    opacity: 0.9;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    margin: 5px 0;
    transition: var(--transition);
}

.nav-list {
    display: flex;
    list-style: none;
}

.nav-item {
    position: relative;
    margin: 0 5px;
}

.nav-item a {
    display: block;
    padding: 8px 15px;
    color: var(--color-text);
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-item a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background-color: var(--color-primary);
}

.dropdown-toggle {
    padding-right: 20px !important;
}

.dropdown-toggle i {
    font-size: 12px;
    margin-left: 5px;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 200px;
    background-color: var(--color-white);
    box-shadow: var(--box-shadow);
    border-radius: var(--border-radius);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 10;
    list-style: none;
    padding: 10px 0;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    padding: 8px 15px;
    font-weight: normal;
    color: var(--color-text);
}

.dropdown-menu a:hover {
    background-color: rgba(10, 102, 64, 0.05);
}

/* Hero Section */
.hero {
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-white);
    margin-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
    filter: brightness(0.5);
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    animation-delay: 0.3s;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    animation-delay: 0.6s;
}

.cta-button {
    display: inline-block;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    animation-delay: 0.9s;
}

.cta-button:hover {
    background-color: var(--color-primary-light);
    color: var(--color-white);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(10, 102, 64, 0.3);
}

.cta-button i {
    margin-left: 8px;
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--color-white);
}

.features .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background-color: rgba(10, 102, 64, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 32px;
    color: var(--color-primary);
}

.feature-card h3 {
    color: var(--color-primary);
    margin-bottom: 15px;
}

/* News Section */
.header-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
    filter: brightness(0.5);
}

.detail-image, .gallery-image {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}
.news {
    padding: 80px 0;
    background-color: var(--color-background);
}

.view-all {
    font-size: 0.9rem;
    float: right;
    margin-top: 10px;
}

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

.news-card {
    display: flex;
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.news-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 15px 10px;
    text-align: center;
}

.news-date .day {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1;
}

.news-date .month {
    font-size: 0.9rem;
    margin: 5px 0;
}

.news-date .year {
    font-size: 0.8rem;
}

.news-content {
    padding: 20px;
    flex-grow: 1;
}

.news-content h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--color-primary);
}

.news-content p {
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.read-more {
    font-size: 0.9rem;
    font-weight: 600;
    display: inline-block;
}

.read-more:hover {
    text-decoration: underline;
}

/* Events Timeline */
.events {
    padding: 80px 0;
    background-color: var(--color-white);
}

.events-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.events-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 120px;
    width: 2px;
    height: 100%;
    background-color: var(--color-primary-light);
}

.timeline-item {
    position: relative;
    padding-left: 150px;
    margin-bottom: 50px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    top: 10px;
    left: 120px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--color-primary);
    border: 4px solid var(--color-white);
    transform: translateX(-50%);
    z-index: 1;
}

.timeline-date {
    position: absolute;
    top: 10px;
    left: 0;
    width: 110px;
    text-align: right;
    color: var(--color-primary);
    font-weight: 600;
}

.timeline-content {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--box-shadow);
}

.timeline-content h3 {
    color: var(--color-primary);
    margin-bottom: 10px;
}

.event-button {
    display: inline-block;
    padding: 8px 15px;
    background-color: rgba(10, 102, 64, 0.1);
    color: var(--color-primary);
    border-radius: 4px;
    font-size: 0.9rem;
    margin-top: 10px;
    transition: var(--transition);
}

.event-button:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* Message Section */
.message {
    padding: 80px 0;
    background-color: var(--color-background);
}

.message .container {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 40px;
    align-items: center;
}

.message-content {
    padding-right: 20px;
}

.message-content h2 {
    color: var(--color-primary);
    margin-bottom: 20px;
    font-size: 2rem;
}

.message-content p {
    margin-bottom: 15px;
}

.president {
    margin-top: 30px;
    text-align: right;
}

.president-title {
    display: block;
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.president-name {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-primary);
}

.message-image {
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.president-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: var(--border-radius);
}

/* Members Highlight */
.members-highlight {
    padding: 80px 0;
    background-color: var(--color-white);
}

.members-carousel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
    min-height: 300px; /* スライドショーの高さを固定して、コンテンツのジャンプを防止 */
    transition: opacity 0.5s ease-in-out; /* フェードエフェクト */
}

/* 会員カードのスライドショーアニメーション */
@keyframes fadeInSlide {
    from { 
        opacity: 0; 
        transform: translateY(20px);
    }
    to { 
        opacity: 1; 
        transform: translateY(0);
    }
}

.member-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    animation: fadeInSlide 0.5s ease-in-out forwards;
}

.member-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.member-image {
    height: 200px;
    width: 100%;
    overflow: hidden;
    transition: var(--transition);
}

.member-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.member-info {
    padding: 20px;
}

.member-info h3 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.member-description {
    margin: 10px 0;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--color-text);
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.prev-button,
.next-button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-white);
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.prev-button:hover,
.next-button:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.members-cta {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.members-button,
.join-button {
    padding: 10px 25px;
    border-radius: 5px;
    font-weight: 600;
    transition: var(--transition);
}

.members-button {
    background-color: rgba(10, 102, 64, 0.1);
    color: var(--color-primary);
}

.join-button {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.members-button:hover {
    background-color: rgba(10, 102, 64, 0.2);
}

.join-button:hover {
    background-color: var(--color-primary-light);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(10, 102, 64, 0.3);
}

/* Tax Resources */
.tax-resources {
    padding: 80px 0;
    background-color: var(--color-background);
}

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

.resource-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.resource-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(10, 102, 64, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.resource-icon i {
    font-size: 24px;
    color: var(--color-primary);
}

.resource-card h3 {
    color: var(--color-primary);
    margin-bottom: 10px;
}

.resource-card p {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    color: var(--color-white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-background {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
    filter: brightness(0.3);
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 30px;
}

.cta-button-large {
    display: inline-block;
    background-color: var(--color-white);
    color: var(--color-primary);
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: var(--transition);
}

.cta-button-large:hover {
    background-color: var(--color-secondary);
    color: var(--color-primary-dark);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Footer */
.footer {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo, .footer-logo-img {
    width: 100px;
    height: auto;
    margin-bottom: 20px;
}

.footer-contact p {
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.footer-links-column h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--color-secondary);
}

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

.footer-links-column li {
    margin-bottom: 8px;
}

.footer-links-column a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links-column a:hover {
    color: var(--color-white);
    padding-left: 5px;
}

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

.copyright {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .message .container {
        grid-template-columns: 1fr;
    }
    
    .message-content {
        padding-right: 0;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header {
        height: 70px;
    }
    
    .hero {
        margin-top: 70px;
        height: 500px;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav-list {
        position: fixed;
        top: 70px;
        right: -300px;
        width: 280px;
        height: calc(100vh - 70px);
        flex-direction: column;
        background-color: var(--color-white);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        overflow-y: auto;
        padding: 20px 0;
    }
    
    .nav-list.active {
        right: 0;
    }
    
    .nav-item {
        margin: 0;
    }
    
    .nav-item a {
        padding: 12px 25px;
    }
    
    .dropdown-menu {
        position: static;
        width: 100%;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
        padding: 0 0 0 15px;
    }
    
    .dropdown-menu.active {
        display: block;
    }
    
    .events-timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        padding-left: 50px;
    }
    
    .timeline-dot {
        left: 20px;
    }
    
    .timeline-date {
        position: relative;
        top: 0;
        left: 0;
        width: auto;
        text-align: left;
        margin-bottom: 10px;
    }
}

@media (max-width: 576px) {
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    /* 会員コラージュ画像のスマホ対応 */
    .member-content div div {
        min-width: auto;
    }
}