/* ===========================================
   DECN - Digital Entertainment City Namba
   Shared Stylesheet
   =========================================== */

/* CSS Variables */
:root {
    --color-white: #FFFFFF;
    --color-snow: #F8F9FB;
    --color-mist: #EEF0F4;
    --color-border: #DDE0E6;
    --color-sub: #8B90A0;
    --color-body: #4A4E5A;
    --color-dark: #1A1D28;
    --color-void: #0C0E14;
    --color-sky: #6BB8D9;
    --color-sky-light: #EBF5FA;
    --color-sakura: #D9728E;
    --color-sakura-light: #FAEEF1;
    --color-matcha: #6BBF8A;
    --color-matcha-light: #ECF7F0;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--color-body);
    background-color: var(--color-mist);
}

.font-en {
    font-family: 'Montserrat', sans-serif;
}

.ease-custom {
    transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}

html {
    scroll-behavior: smooth;
}

/* FadeUp Animation Utilities */
.fade-up {
    opacity: 0;
    transform: translateY(32px);
    transition-property: opacity, transform;
    transition-duration: 1000ms;
    transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Custom Keyframes */
@keyframes slowZoom {
    from { transform: scale(1.02); }
    to { transform: scale(1.1); }
}

.animate-slowZoom {
    animation: slowZoom 20s ease-out infinite alternate;
}

/* Mobile Menu Styles */
#mobile-menu {
    transform: translateY(-100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
#mobile-menu.open {
    transform: translateY(0);
}

.hamburger-line {
    transition: all 0.3s ease;
}
.menu-open .hamburger-line-1 {
    transform: translateY(8px) rotate(45deg);
}
.menu-open .hamburger-line-2 {
    opacity: 0;
}
.menu-open .hamburger-line-3 {
    transform: translateY(-8px) rotate(-45deg);
}

/* Responsive padding classes */
.section-py {
    padding-top: 80px;
    padding-bottom: 40px;
}
@media (min-width: 1024px) {
    .section-py {
padding-top: 140px;
padding-bottom: 60px;
    }
}


/* ==========================================
   PAGE-SPECIFIC STYLES
   ========================================== */
/* === Page: contact === */
/* Form Custom Styles */
.form-input {
    width: 100%;
    background-color: var(--color-snow);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 16px 20px;
    font-size: 15px;
    color: var(--color-dark);
    transition: all 0.3s ease;
    outline: none;
}
.form-input:focus {
    background-color: var(--color-white);
    border-color: var(--color-dark);
    box-shadow: 0 0 0 4px rgba(26, 29, 40, 0.05);
}
.form-input::placeholder {
    color: var(--color-sub);
    opacity: 0.7;
}

/* Custom Radio Button for Category */
.category-label {
    cursor: pointer;
    display: block;
}
.category-label input {
    display: none;
}
.category-box {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    border: 1px solid var(--color-border);
    background-color: var(--color-white);
    border-radius: 20px;
    font-weight: 700;
    color: var(--color-body);
    transition: all 0.3s ease;
    height: 100%;
}
.category-label input:checked + .category-box {
    background-color: var(--color-dark);
    border-color: var(--color-dark);
    color: var(--color-white);
    box-shadow: 0 10px 20px rgba(26, 29, 40, 0.15);
}
.category-label:hover input:not(:checked) + .category-box {
    border-color: var(--color-dark);
    background-color: var(--color-snow);
}
/* === Page: mp === */
/* Timeline Custom Styles */
.timeline-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 24px;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-sky) 0%, var(--color-sky) 50%, var(--color-border) 50%, var(--color-border) 100%);
    background-size: 100% 200%;
    background-position: bottom;
    transition: background-position 1.5s ease;
    z-index: 1;
}
.timeline-wrapper.is-visible .timeline-line {
    background-position: top;
}

@media (min-width: 1024px) {
    .timeline-line {
        left: 50%;
        transform: translateX(-50%);
    }
}
/* === Page: sitemap === */
/* Sitemap Specific Styles */
.sitemap-list {
    list-style: none;
    padding-left: 0;
    margin: 0;
}
.sitemap-list > li {
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--color-border);
}
.sitemap-list > li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}
.sitemap-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    transition: color 0.3s ease;
}
.sitemap-link:hover {
    color: var(--color-sky);
}
.sitemap-link svg {
    transition: transform 0.3s ease;
    color: var(--color-border);
}
.sitemap-link:hover svg {
    transform: translateX(4px);
    color: var(--color-sky);
}
.sitemap-link.cursor-default:hover {
    color: var(--color-dark);
}
.sitemap-sublist {
    list-style: none;
    padding-left: 0;
    margin-top: 20px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
@media (min-width: 768px) {
    .sitemap-sublist {
        grid-template-columns: repeat(2, 1fr);
        padding-left: 32px;
    }
}
.sitemap-sublink {
    display: inline-flex;
    align-items: center;
    font-size: 15px;
    color: var(--color-body);
    transition: color 0.3s ease;
    position: relative;
    padding-left: 20px;
}
.sitemap-sublink::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background-color: var(--color-border);
    border-radius: 50%;
    transition: background-color 0.3s ease, width 0.3s ease;
}
.sitemap-sublink:hover {
    color: var(--color-sky);
}
.sitemap-sublink:hover::before {
    background-color: var(--color-sky);
    width: 10px;
    border-radius: 4px;
}
/* === Page: topics === */
/* Filter Tab Styles */
.filter-btn {
    transition: all 0.3s ease;
}
.filter-btn.active {
    background-color: var(--color-dark);
    color: var(--color-white);
    border-color: var(--color-dark);
    box-shadow: 0 10px 20px rgba(26, 29, 40, 0.15);
}

/* News List Animation */
.news-item {
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.news-item.hidden-item {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
    pointer-events: none;
    position: absolute;
    visibility: hidden;
}

/* === Page: article === */
/* Article Typography Styles */
.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-dark);
    margin-top: 48px;
    margin-bottom: 24px;
    padding-left: 16px;
    border-left: 4px solid var(--color-sky);
    line-height: 1.4;
}
@media (min-width: 1024px) {
    .article-content h2 { font-size: 28px; }
}

.article-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    margin-top: 40px;
    margin-bottom: 20px;
    padding: 12px 20px;
    background-color: var(--color-snow);
    border-radius: 16px;
    line-height: 1.5;
}
@media (min-width: 1024px) {
    .article-content h3 { font-size: 22px; }
}

.article-content p {
    font-size: 15px;
    line-height: 2.2;
    color: var(--color-body);
    margin-bottom: 32px;
}
@media (min-width: 1024px) {
    .article-content p { font-size: 16px; }
}

.article-content img {
    width: 100%;
    border-radius: 24px;
    margin-bottom: 32px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.article-content ul {
    list-style: none;
    margin-bottom: 32px;
    padding-left: 0;
}

.article-content li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-body);
}
@media (min-width: 1024px) {
    .article-content li { font-size: 16px; }
}

.article-content li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background-color: var(--color-sky);
    border-radius: 50%;
}
/* === Page: pp (Legal Content) === */
.legal-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-dark);
    margin-top: 64px;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--color-border);
    line-height: 1.4;
}
@media (min-width: 1024px) {
    .legal-content h2 { font-size: 28px; }
}

.legal-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
    margin-top: 40px;
    margin-bottom: 16px;
    padding-left: 16px;
    border-left: 4px solid var(--color-sky);
    line-height: 1.5;
}
@media (min-width: 1024px) {
    .legal-content h3 { font-size: 20px; }
}

.legal-content p {
    font-size: 14px;
    line-height: 2.2;
    color: var(--color-body);
    margin-bottom: 24px;
}
@media (min-width: 1024px) {
    .legal-content p { font-size: 15px; }
}

.legal-content ul {
    list-style: none;
    margin-bottom: 32px;
    padding-left: 0;
}

.legal-content li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-body);
}
@media (min-width: 1024px) {
    .legal-content li { font-size: 15px; }
}

.legal-content li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background-color: var(--color-sky);
    border-radius: 50%;
}