/* ===== Design Tokens & System Variables ===== */
:root {
    --font-serif: 'Shippori Mincho', 'Playfair Display', Georgia, serif;
    --font-sans: 'Manrope', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    --bg-deep: #08090d;
    --bg-card: #12141c;
    --bg-card-hover: #191c27;
    
    --accent: #d4af37; /* Warm Amber Gold */
    --accent-rgb: 212, 175, 55;
    --accent-light: #f3cf65;
    
    --text-title: #f7fafc;
    --text-body: #e2e8f0;
    --text-muted: #94a3b8;
    
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(212, 175, 55, 0.3);
    
    --glass-bg: rgba(18, 20, 28, 0.75);
    --glass-border: rgba(255, 255, 255, 0.05);
    --glass-blur: blur(16px);
    
    --transition-smooth: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.25s ease;
    
    --max-width: 1200px;
    --header-height-large: 100px;
    --header-height-small: 70px;
}

/* ===== Reset & Base Styles ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-deep);
    color: var(--text-body);
    font-family: var(--font-sans);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

body {
    overflow-x: hidden;
}

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

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-deep);
}
::-webkit-scrollbar-thumb {
    background: #252836;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    color: var(--text-title);
    font-weight: 700;
    line-height: 1.35;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 2rem;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-radius: 2px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-primary {
    background-color: var(--accent);
    color: #000;
    border: 1px solid var(--accent);
}

.btn-primary:hover {
    background-color: var(--accent-light);
    border-color: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(212, 175, 55, 0.25);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-title);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background-color: rgba(212, 175, 55, 0.05);
    transform: translateY(-2px);
}

/* Layout Container */
.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    width: 100%;
}

.section-header {
    margin-bottom: 4rem;
    max-width: 650px;
}

.section-label {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 0.8rem;
    text-transform: uppercase;
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 1.2rem;
    letter-spacing: -0.01em;
}

.section-sub {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ===== Site Header / Sticky Navigation ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    height: var(--header-height-large);
    display: flex;
    align-items: center;
    border-bottom: 1px solid transparent;
    transition: var(--transition-smooth);
}

/* Glassmorphic Active Header State */
.site-header.scrolled {
    height: var(--header-height-small);
    background-color: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.nav-logo {
    display: flex;
    flex-direction: column;
}

.logo-en {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--text-title);
    line-height: 1;
}

.logo-ja {
    font-family: var(--font-sans);
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-top: 0.25rem;
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--text-body);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover {
    color: var(--accent);
}

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    z-index: 1001;
}

.menu-toggle .bar {
    width: 25px;
    height: 2px;
    background-color: var(--text-title);
    transition: var(--transition-fast);
}

/* ===== CSS Scroll-Driven Animations: Header Shrink (Modern Browsers) ===== */
@media (prefers-reduced-motion: no-preference) {
    @supports ((animation-timeline: scroll()) and (animation-range: 0% 100%)) {
        .site-header {
            animation: shrink-header auto linear both;
            animation-timeline: scroll(block root);
            animation-range: 0px 150px;
        }
        
        @keyframes shrink-header {
            to {
                height: var(--header-height-small);
                background-color: var(--glass-bg);
                backdrop-filter: var(--glass-blur);
                -webkit-backdrop-filter: var(--glass-blur);
                border-bottom: 1px solid var(--glass-border);
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            }
        }
    }
}

/* ===== Hero Section ===== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height-large);
    overflow: hidden;
}

.hero-bg-wrapper {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    animation: zoom-out-slow 20s ease-out forwards;
}

@keyframes zoom-out-slow {
    to {
        transform: scale(1);
    }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(8, 9, 13, 0.6) 0%,
        rgba(8, 9, 13, 0.9) 80%,
        var(--bg-deep) 100%
    );
}

.hero-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 10;
}

.hero-badge {
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.2em;
    color: var(--accent);
    margin-bottom: 1.5rem;
    animation: fade-slide-up 1.2s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.25;
    margin-bottom: 1.8rem;
    letter-spacing: -0.01em;
    animation: fade-slide-up 1.4s cubic-bezier(0.16, 1, 0.3, 1) 0.1s both;
}

.hero-title .highlight {
    color: var(--accent);
    position: relative;
    display: inline-block;
}

.hero-lead {
    font-size: 1.15rem;
    color: var(--text-body);
    max-width: 600px;
    margin-bottom: 2.8rem;
    line-height: 1.8;
    animation: fade-slide-up 1.4s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.hero-ctas {
    display: flex;
    gap: 1.5rem;
    animation: fade-slide-up 1.4s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

.scroll-hint {
    position: absolute;
    bottom: 3rem;
    left: 2rem;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: fade-slide-up 1.4s cubic-bezier(0.16, 1, 0.3, 1) 0.4s both;
}

.scroll-line {
    width: 40px;
    height: 1px;
    background-color: var(--text-muted);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--accent);
    animation: scroll-line-anim 2s infinite ease-in-out;
}

@keyframes scroll-line-anim {
    0% { transform: scaleX(0); transform-origin: left; }
    50% { transform: scaleX(1); transform-origin: left; }
    50.1% { transform: scaleX(1); transform-origin: right; }
    100% { transform: scaleX(0); transform-origin: right; }
}

.scroll-text {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--text-muted);
}

@keyframes fade-slide-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== About Section ===== */
.about-section {
    padding: 10rem 0;
    border-bottom: 1px solid var(--border);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 5rem;
    align-items: start;
}

.about-desc {
    font-size: 1.05rem;
    color: var(--text-body);
}

.about-desc p {
    margin-bottom: 2rem;
    text-align: justify;
}

.about-desc .lead-text {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    line-height: 1.6;
    color: var(--text-title);
    border-left: 3px solid var(--accent);
    padding-left: 1.5rem;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    padding: 2.2rem;
    border-radius: 2px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    transform: scaleX(0);
    transition: var(--transition-smooth);
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-num {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent);
    display: block;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-title);
    margin-bottom: 0.5rem;
    display: block;
    letter-spacing: 0.05em;
}

.stat-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ===== Projects Section ===== */
.projects-section {
    padding: 10rem 0;
    background-color: #0b0d14;
    border-bottom: 1px solid var(--border);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.project-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 2px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.project-img-wrapper {
    position: relative;
    aspect-ratio: 1.5 / 1;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

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

.project-card:hover .project-img {
    transform: scale(1.08);
}

.project-img-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(8, 9, 13, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-fast);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.project-card:hover .project-img-overlay {
    opacity: 1;
}

.view-detail-btn {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.1em;
    border: 1px solid var(--accent);
    padding: 0.6rem 1.2rem;
    border-radius: 2px;
    background-color: rgba(212, 175, 55, 0.05);
}

.project-info {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-category {
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.6rem;
}

.project-card-title {
    font-size: 1.25rem;
    margin-bottom: 0.8rem;
    transition: var(--transition-fast);
}

.project-card:hover .project-card-title {
    color: var(--accent);
}

.project-card-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===== Collaboration Section ===== */
.collab-section {
    padding: 8rem 0;
    position: relative;
}

.collab-box {
    background: linear-gradient(135deg, #12141c 0%, #0c0e14 100%);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 5rem;
    position: relative;
    overflow: hidden;
}

.collab-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(212,175,55,0.03) 0%, transparent 60%);
    pointer-events: none;
}

.collab-content {
    max-width: 750px;
    position: relative;
    z-index: 10;
}

.collab-text {
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.collab-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 2.5rem;
}

.collab-badge {
    font-size: 0.75rem;
    font-weight: 700;
    background-color: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    color: var(--text-body);
    padding: 0.4rem 1rem;
    border-radius: 2px;
}

/* ===== Schedule / News Section ===== */
.schedule-section {
    padding: 10rem 0;
    background-color: #0b0d14;
    border-bottom: 1px solid var(--border);
}

.tab-container {
    margin-top: 3rem;
}

.tab-buttons {
    display: flex;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 3rem;
}

.tab-trigger {
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 700;
    padding: 1rem 1.5rem;
    cursor: pointer;
    position: relative;
    transition: var(--transition-fast);
}

.tab-trigger::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent);
    transform: scaleX(0);
    transition: var(--transition-fast);
}

.tab-trigger:hover {
    color: var(--text-title);
}

.tab-trigger.active {
    color: var(--accent);
}

.tab-trigger.active::after {
    transform: scaleX(1);
}

.tab-panels {
    position: relative;
}

.tab-panel {
    animation: fade-in 0.5s ease-out;
}

@keyframes fade-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.schedule-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.schedule-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1.8rem;
    transition: var(--transition-fast);
}

.schedule-item:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.sch-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
}

.sch-date {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    color: var(--text-title);
}

.sch-tag {
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    padding: 0.2rem 0.6rem;
    border-radius: 2px;
}

.tag-concert { background-color: rgba(212, 175, 55, 0.15); color: var(--accent); }
.tag-studio { background-color: rgba(56, 178, 172, 0.15); color: #38b2ac; }
.tag-map { background-color: rgba(159, 122, 234, 0.15); color: #9f7aea; }

.sch-body {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sch-title {
    font-size: 1.15rem;
    font-family: var(--font-sans);
}

.sch-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===== Contact Section ===== */
.contact-section {
    padding: 10rem 0;
}

.contact-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    padding: 5rem;
    text-align: center;
    border-radius: 2px;
}

.contact-box .section-label {
    text-align: center;
}

.contact-box .section-title {
    font-size: 2.5rem;
    max-width: 700px;
    margin: 0 auto 1.5rem;
}

.contact-lead {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 650px;
    margin: 0 auto 3rem;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    max-width: 700px;
    margin: 0 auto;
}

.contact-info-item {
    border: 1px solid var(--border);
    background-color: rgba(255, 255, 255, 0.02);
    padding: 2rem;
    border-radius: 2px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.contact-info-item:hover {
    border-color: var(--accent);
}

.info-label {
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    letter-spacing: 0.1em;
}

.info-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-title);
    word-break: break-all;
}

a.info-value:hover {
    color: var(--accent);
}

/* ===== Footer ===== */
.site-footer {
    background-color: #050608;
    border-top: 1px solid var(--border);
    padding: 5rem 0 3rem;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--text-title);
    margin-bottom: 0.4rem;
}

.footer-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1.5rem;
}

.footer-nav {
    display: flex;
    gap: 2rem;
}

.footer-nav a {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

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

.copyright {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== Native Dialog Modal Styling (Top Layer) ===== */
dialog {
    border: none;
    background: transparent;
    max-width: 800px;
    width: 90%;
    margin: auto;
    padding: 0;
    outline: none;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: visible;
}

dialog::backdrop {
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

.modal-dialog-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    padding: 3.5rem;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 2.2rem;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--accent);
}

/* Modal Inner Body Details */
.modal-body {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.modal-header-section {
    border-bottom: 1px solid var(--border);
    padding-bottom: 1.5rem;
}

.modal-title {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--accent);
}

.modal-category {
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.modal-main-img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    border: 1px solid var(--border);
}

.modal-content-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
}

.modal-desc-col p {
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.7;
}

.modal-meta-col {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    padding: 1.8rem;
    border-radius: 2px;
}

.modal-meta-title {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
    color: var(--text-title);
}

.modal-meta-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modal-meta-item {
    font-size: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.meta-label {
    color: var(--accent);
    font-weight: 700;
}

.meta-value {
    color: var(--text-body);
}

/* ===== Responsive Styles ===== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3.5rem;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 3.2rem;
    }
}

@media (max-width: 768px) {
    .site-header {
        height: var(--header-height-small);
    }
    
    .nav-container {
        padding: 0 1.5rem;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height-small);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height-small));
        background-color: var(--bg-deep);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition-smooth);
        z-index: 999;
        border-top: 1px solid var(--border);
    }
    
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .collab-box {
        padding: 2.5rem;
    }
    
    .schedule-item {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .contact-info-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-container {
        flex-direction: column;
        align-items: flex-start;
        gap: 2rem;
    }
    
    .footer-links {
        align-items: flex-start;
    }
    
    .modal-dialog-content {
        padding: 2rem;
    }
    
    .modal-content-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Menu Toggle Animation */
.menu-toggle.open .bar:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.open .bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle.open .bar:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Scroll Reveals (IntersectionObserver Fallback Ready) ===== */
@media (prefers-reduced-motion: no-preference) {
    /* Set up modern browser CSS scroll-driven animations */
    @supports ((animation-timeline: view()) and (animation-range: entry)) {
        .scroll-reveal {
            animation: scroll-fade-in auto linear backwards;
            animation-timeline: view();
            animation-range: entry 10% entry 40%;
        }
        
        @keyframes scroll-fade-in {
            from {
                opacity: 0;
                transform: translateY(40px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
    }
}
/* For JS Fallback (if browser doesn't support css view-timeline) */
.scroll-reveal.reveal-js-active {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal.reveal-js-visible {
    opacity: 1;
    transform: translateY(0);
}