/* --- Global Settings & Variables --- */
:root {
    --font-serif: 'Noto Serif JP', serif;
    --font-display: 'Roboto Condensed', sans-serif;
    --color-bg: #101010;
    --color-text: #EAEAEA;
    --color-accent: #FFFFFF;
    --color-border: #282828;
    --nav-width: 90px;
    --transition-fast: 0.3s;
    --transition-medium: 0.6s;
    --transition-slow: 1s;
}

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

html {
    font-size: 16px;
    background-color: var(--color-bg);
}

body {
    font-family: var(--font-serif);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.7;
    cursor: none;
    overflow-x: hidden;
}

a, button {
    cursor: none;
    color: inherit;
    text-decoration: none;
    background: none;
    border: none;
}

/* --- Custom Cursor --- */
#cursor {
    position: fixed;
    width: 24px;
    height: 24px;
    border: 1px solid var(--color-text);
    border-radius: 50%;
    left: 0;
    top: 0;
    pointer-events: none;
    transform: translate(-50%, -50%);
    transition: all 0.1s ease;
    mix-blend-mode: difference;
    z-index: 10001;
}

#cursor.hover {
    width: 48px;
    height: 48px;
    background-color: var(--color-accent);
}

/* --- Preloader --- */
#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity var(--transition-medium) ease, visibility var(--transition-medium) ease;
}
#loader.hidden {
    opacity: 0;
    visibility: hidden;
}
.loader-inner {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--color-text);
    animation: pulse 1.5s infinite;
}
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.3; }
    100% { opacity: 1; }
}

/* --- Navigation --- */
#main-nav {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    width: var(--nav-width);
    background-color: var(--color-bg);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    z-index: 1000;
}
.nav-logo a {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
}
.nav-links {
    list-style: none;
    text-align: center;
}
.nav-links li {
    margin-bottom: 1.5rem;
}
.nav-link {
    writing-mode: vertical-rl;
    text-transform: uppercase;
    font-family: var(--font-display);
    letter-spacing: 2px;
    padding: 1rem 0;
    position: relative;
    transition: color var(--transition-fast);
}
.nav-link.active, .nav-link:hover {
    color: var(--color-accent);
}
.nav-footer p {
    font-size: 0.9rem;
    color: #666;
}

/* --- Main Content --- */
#main-content {
    margin-left: var(--nav-width);
    position: relative;
    width: calc(100% - var(--nav-width));
}

.content-section {
    opacity: 0;
    visibility: hidden;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    min-height: 100vh;
    padding: 4rem;
    transition: opacity var(--transition-medium) ease, visibility var(--transition-medium) ease;
    display: none;
}
.content-section.active {
    opacity: 1;
    visibility: visible;
    position: relative;
    display: block;
}
.section-header {
    margin-bottom: 4rem;
    text-align: center;
}
.section-header h2 {
    font-family: var(--font-display);
    font-size: 3rem;
    text-transform: uppercase;
    letter-spacing: 4px;
}

/* --- Home Section --- */
#home {
    padding: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.home-container {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.home-background-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url(images/hero.jpg) no-repeat center center/cover;
    filter: grayscale(1);
    opacity: 0.5;
}
.home-title {
    text-align: center;
    color: var(--color-accent);
    z-index: 2;
}
.home-title h1 {
    font-family: var(--font-display);
    font-size: 4vw;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5vw;
    margin-bottom: 1rem;
}
.home-title p {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    letter-spacing: 2px;
}

/* --- Reveal Text Animation --- */
.reveal-text {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow) ease, transform var(--transition-slow) ease;
}
.active .reveal-text {
    opacity: 1;
    transform: translateY(0);
}
.active .reveal-text:nth-child(2) { transition-delay: 0.2s; }

/* --- Portfolio Section --- */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}
.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    opacity: 0;
    transform: translateY(50px);
    transition: opacity var(--transition-medium) ease, transform var(--transition-medium) ease;
}
.portfolio-item.in-view {
    opacity: 1;
    transform: translateY(0);
}

.portfolio-item img {
    width: 100%;
    display: block;
    transition: transform var(--transition-medium) ease;
}
.portfolio-item:hover img {
    transform: scale(1.05);
}
.portfolio-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 1rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--color-accent);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--transition-fast) ease, transform var(--transition-fast) ease;
}
.portfolio-item:hover .portfolio-caption {
    opacity: 1;
    transform: translateY(0);
}

/* --- About & Contact Section --- */
.about-container, .contact-container {
    max-width: 900px;
    margin: 0 auto;
}
.about-container {
    display: flex;
    gap: 4rem;
    align-items: flex-start;
}
.about-image img {
    width: 250px;
    height: 350px;
    object-fit: cover;
    filter: grayscale(1);
}
.about-text h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    margin-bottom: 1.5rem;
}
.contact-container {
    text-align: center;
}
.contact-container p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}
.instagram-link {
    font-family: var(--font-display);
    font-size: 1.5rem;
    display: inline-block;
    padding: 1rem 2rem;
    border: 1px solid var(--color-border);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}
.instagram-link:hover {
    background-color: var(--color-text);
    color: var(--color-bg);
}

/* --- Reveal Items Animation --- */
.reveal-item {
    opacity: 0;
    transition: opacity var(--transition-slow) ease;
}
.active .reveal-item {
    opacity: 1;
}
.active .reveal-item:nth-child(1) { transition-delay: 0.2s; }
.active .reveal-item:nth-child(2) { transition-delay: 0.4s; }
.active .reveal-item:nth-child(3) { transition-delay: 0.6s; }


/* --- Journal Section --- */
.journal-list {
    max-width: 900px;
    margin: 0 auto;
}
.journal-item {
    display: flex;
    gap: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid var(--color-border);
    opacity: 0;
    transform: translateY(50px);
    transition: opacity var(--transition-medium) ease, transform var(--transition-medium) ease;
}
.journal-item.in-view {
    opacity: 1;
    transform: translateY(0);
}
.journal-date {
    flex-shrink: 0;
    font-family: var(--font-display);
}
.journal-title {
    font-size: 1.5rem;
    font-family: var(--font-serif);
    font-weight: 700;
}
.journal-item:hover .journal-title {
    text-decoration: underline;
}

/* --- Lightbox --- */
#lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.9);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast) ease, visibility var(--transition-fast) ease;
}
#lightbox.show {
    opacity: 1;
    visibility: visible;
}
.lightbox-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    color: #fff;
}
#lightbox-caption {
    font-family: var(--font-serif);
}
.lightbox-close {
    font-size: 2rem;
}

#lightbox-img {
    max-width: 85vw;
    max-height: 80vh;
    object-fit: contain;
}
.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-accent);
    font-size: 2rem;
    padding: 1rem;
}
.lightbox-prev { left: 2rem; }
.lightbox-next { right: 2rem; }

/* --- Journal Modal --- */
#journal-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.95);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast) ease, visibility var(--transition-fast) ease;
}
#journal-modal.show {
    opacity: 1;
    visibility: visible;
}
.journal-modal-content {
    max-width: 700px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2rem;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
}
.journal-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}
#journal-modal-title {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    line-height: 1.3;
}
#journal-modal-date {
    font-size: 0.9rem;
    color: #888;
    margin-bottom: 2rem;
}
#journal-modal-img {
    width: 100%;
    height: auto;
    margin-bottom: 2rem;
}
#journal-modal-text {
    line-height: 1.8;
}
.journal-modal-close {
    font-size: 2rem;
    padding-left: 1rem;
}
.journal-modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-accent);
    font-size: 2rem;
    padding: 1rem;
}
.journal-modal-prev { left: 2rem; }
.journal-modal-next { right: 2rem; }


/* --- Responsive Design --- */
@media (max-width: 768px) {
    :root {
        --nav-width: 100%;
        --nav-height: 60px;
    }
    #main-nav {
        top: auto;
        bottom: 0;
        width: 100%;
        height: var(--nav-height);
        flex-direction: row;
        border-right: none;
        border-top: 1px solid var(--color-border);
        padding: 0;
    }
    .nav-logo, .nav-footer {
        display: none;
    }
    .nav-links {
        display: flex;
        width: 100%;
        justify-content: space-around;
        align-items: center;
        height: 100%;
    }
    .nav-links li {
        margin: 0;
    }
    .nav-link {
        writing-mode: horizontal-tb;
        font-size: 0.9rem;
        padding: 0 0.5rem;
    }

    #main-content {
        margin-left: 0;
        width: 100%;
        padding-bottom: var(--nav-height);
    }
    .content-section {
        padding: 2rem;
    }
    .section-header h2 {
        font-size: 2rem;
    }
    .home-title h1 {
        font-size: 8vw;
    }

    .about-container {
        flex-direction: column;
    }
    .about-image img {
        width: 100%;
        height: 300px;
    }
    .journal-item {
        flex-direction: column;
        gap: 0.5rem;
    }
    .journal-modal-nav {
        top: auto;
        bottom: 1rem;
        transform: translateY(0);
    }
    .journal-modal-prev {
        left: 1rem;
    }
    .journal-modal-next {
        right: 1rem;
    }
}