/* ===================================
   CSS Variables & Reset
   =================================== */

:root {
    /* Light Mode Colors */
    --color-bg: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-text: #1a1a1a;
    --color-text-secondary: #6b7280;
    --color-accent: #d2b356;
    --color-accent-hover: #c4a344;
    --color-border: #e5e7eb;
    --color-shadow: rgba(0, 0, 0, 0.1);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 2rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

[data-theme="dark"] {
    --color-bg: #0f0f0f;
    --color-bg-secondary: #1a1a1a;
    --color-text: #f5f5f5;
    --color-text-secondary: #a3a3a3;
    --color-accent: #e6c875;
    --color-accent-hover: #f0d689;
    --color-border: #2a2a2a;
    --color-shadow: rgba(255, 255, 255, 0.05);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition-base), color var(--transition-base);
    overflow-x: hidden;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* ===================================
   Theme Toggle
   =================================== */

.theme-toggle {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 1000;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background-color: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    box-shadow: 0 4px 12px var(--color-shadow);
}

.theme-toggle:hover {
    transform: scale(1.1);
    border-color: var(--color-accent);
}

.sun-icon,
.moon-icon {
    position: absolute;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

[data-theme="light"] .sun-icon {
    opacity: 1;
    transform: rotate(0deg);
}

[data-theme="light"] .moon-icon {
    opacity: 0;
    transform: rotate(180deg);
}

[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: rotate(-180deg);
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
    transform: rotate(0deg);
}

/* ===================================
   Navigation
   =================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 999;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.nav.scrolled {
    box-shadow: 0 2px 20px var(--color-shadow);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

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

.nav-link {
    position: relative;
    color: var(--color-text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -0.25rem;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 0.4rem;
    width: 2rem;
    height: 2rem;
}

.nav-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    transition: all var(--transition-base);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    position: relative;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease forwards;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.hero-title span {
    display: block;
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px var(--color-shadow);
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.6;
}

.scroll-indicator span {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-line {
    width: 1px;
    height: 3rem;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollAnimation 2s ease-in-out infinite;
}

@keyframes scrollAnimation {
    0%, 100% { opacity: 0; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(1rem); }
}

/* ===================================
   Buttons
   =================================== */

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-align: center;
    transition: all var(--transition-base);
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--color-accent);
    color: #1a1a1a;
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(210, 179, 86, 0.3);
}

.btn-outline {
    border: 2px solid var(--color-text);
    color: var(--color-text);
}

.btn-outline:hover {
    background-color: var(--color-text);
    color: var(--color-bg);
}

/* ===================================
   Sections
   =================================== */

section {
    padding: var(--spacing-xl) 2rem;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1rem;
    color: var(--color-text);
}

.section-line {
    width: 4rem;
    height: 4px;
    background-color: var(--color-accent);
    margin: 0 auto 1.5rem;
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto 0.5rem;
}

.section-description-en {
    font-size: 1rem;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto;
    font-style: italic;
}

/* ===================================
   About Section
   =================================== */

.about {
    background-color: var(--color-bg-secondary);
}

.about-content {
    display: grid;
    gap: var(--spacing-lg);
}

.about-text {
    max-width: 800px;
    margin: 0 auto;
}

.about-intro {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.about-jp {
    font-size: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: var(--spacing-md);
}

.about-card {
    background-color: var(--color-bg);
    padding: 2rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px var(--color-shadow);
    border-color: var(--color-accent);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.about-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.about-card p {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}

.card-image {
    margin-top: 1.5rem;
    border-radius: var(--radius-sm);
    width: 100%;
}

/* ===================================
   Gallery Section
   =================================== */

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4/5;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 2rem;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-btn {
    background-color: var(--color-accent);
    color: #1a1a1a;
    padding: 0.75rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: all var(--transition-base);
}

.gallery-btn:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-4px);
}

/* ===================================
   Comics Section
   =================================== */

.comics {
    background-color: var(--color-bg-secondary);
}

.comics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
}

.comic-card {
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.comic-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 16px 50px var(--color-shadow);
    border-color: var(--color-accent);
}

.comic-image {
    aspect-ratio: 1;
    overflow: hidden;
}

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

.comic-card:hover .comic-image img {
    transform: scale(1.1);
}

.comic-content {
    padding: 2rem;
}

.comic-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.comic-desc-jp {
    font-size: 0.95rem;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.comic-desc-en {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===================================
   Podcast Section
   =================================== */

.podcast-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: 3rem;
    border: 1px solid var(--color-border);
    box-shadow: 0 8px 30px var(--color-shadow);
}

.podcast-player-wrapper {
    margin-bottom: 2.5rem;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.podcast-player-wrapper iframe {
    display: block;
    width: 100%;
}

.podcast-info {
    text-align: center;
    margin-bottom: 2.5rem;
}

.podcast-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    border-radius: 50%;
    margin-bottom: 1.5rem;
    color: #1a1a1a;
}

.podcast-info h3 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.podcast-description {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 1.0625rem;
}

.podcast-description-en {
    color: var(--color-text-secondary);
    line-height: 1.8;
    font-size: 0.9375rem;
    font-style: italic;
    opacity: 0.9;
}

.podcast-platforms {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.platform-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background-color: var(--color-accent);
    color: #1a1a1a;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: all var(--transition-base);
    box-shadow: 0 4px 12px rgba(210, 179, 86, 0.3);
}

.platform-link:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(210, 179, 86, 0.4);
}

.platform-link svg {
    width: 24px;
    height: 24px;
}

/* Responsive */
@media (max-width: 768px) {
    .podcast-container {
        padding: 2rem;
    }

    .podcast-info h3 {
        font-size: 1.5rem;
    }

    .podcast-icon {
        width: 64px;
        height: 64px;
    }

    .podcast-icon svg {
        width: 32px;
        height: 32px;
    }
}

/* ===================================
   Contact Section
   =================================== */

.social-links {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.social-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    min-width: 150px;
    transition: all var(--transition-base);
}

.social-link:hover {
    border-color: var(--color-accent);
    transform: translateY(-8px);
    box-shadow: 0 12px 40px var(--color-shadow);
}

.social-link svg {
    width: 3rem;
    height: 3rem;
    color: var(--color-accent);
}

.social-link span {
    font-weight: 600;
    font-size: 1.125rem;
}

/* ===================================
   Footer
   =================================== */

.footer {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: 3rem 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
    color: var(--color-text-secondary);
}

.footer-content p {
    margin-bottom: 0.5rem;
}

.footer-credit {
    font-size: 0.875rem;
    opacity: 0.7;
}

/* ===================================
   Lightbox
   =================================== */

.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.lightbox.active {
    display: flex;
}

.lightbox-image {
    max-width: 90%;
    max-height: 90vh;
    border-radius: var(--radius-sm);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background-color: var(--color-accent);
    color: #1a1a1a;
    border-color: var(--color-accent);
}

.lightbox-close {
    top: 2rem;
    right: 2rem;
}

.lightbox-prev {
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

/* ===================================
   Animations
   =================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal-text {
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.reveal-text:nth-child(1) { animation-delay: 0.1s; }
.reveal-text:nth-child(2) { animation-delay: 0.2s; }
.reveal-text:nth-child(3) { animation-delay: 0.3s; }
.reveal-text:nth-child(4) { animation-delay: 0.4s; }
.reveal-text:nth-child(5) { animation-delay: 0.5s; }

[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background-color: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: 2rem;
        gap: 1.5rem;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-base);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(0.5rem, 0.5rem);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(0.5rem, -0.5rem);
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-image {
        order: -1;
    }

    .theme-toggle {
        top: 1.5rem;
        right: 5rem;
    }

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

    .lightbox-prev,
    .lightbox-next {
        bottom: 2rem;
        top: auto;
        transform: none;
    }

    .lightbox-prev {
        left: 2rem;
    }

    .lightbox-next {
        right: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .social-links {
        gap: 1.5rem;
    }

    .social-link {
        min-width: 120px;
        padding: 1.5rem;
    }
}