/* 
  Esprit De Five - GTA & Inception Hybrid Design
  Theme: Black, White, and Dark Green
*/

:root {
    --bg-black: #000000;
    --gta-white: #ffffff;
    --accent-green: #1a4d2e;
    /* 暗めの緑 */
    --accent-green-bright: #2e7d32;
    /* 少し明るめの緑（ホバー用など） */

    --font-heading: 'Outfit', 'Noto Sans JP', sans-serif;
    --font-body: 'Inter', 'Noto Sans JP', sans-serif;

    --border-thick: 6px solid #000;
    --border-thin: 1px solid rgba(255, 255, 255, 0.1);
    --anim-smooth: cubic-bezier(0.19, 1, 0.22, 1);
}

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

body {
    background-color: var(--bg-black);
    color: var(--gta-white);
    font-family: var(--font-body);
    overflow-x: hidden;
    overflow-y: auto;
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-black);
}

::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-green-bright);
}

/* Cinematic Grain - Removed as per user request */
.noise-overlay {
    display: none;
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 40px;
    z-index: 1000;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent);
}

.header-inner {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 25px;
    /* 余白を25pxに拡大 */
}

.main-logo {
    height: 40px;
    /* 少し小さくしてバランスを調整 */
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.2rem;
    letter-spacing: 0.1em;
    color: var(--gta-white);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 40px;
}

nav a {
    text-decoration: none;
    color: #fff;
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    opacity: 0.6;
    transition: opacity 0.3s;
}

@media (hover: hover) {
    nav a:hover {
        opacity: 1;
        color: var(--gta-white);
    }
}

/* Hero */
.hero {
    height: 100vh;
    height: 100dvh;
    /* Modern mobile support */
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #000;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-center {
    position: relative;
    z-index: 10;
    text-align: center;
}

.hero-logo-large {
    width: clamp(280px, 50vw, 600px);
    filter: drop-shadow(0 0 30px rgba(0, 0, 0, 0.8));
    will-change: transform, opacity;
}

/* Mouse Scroll Icon */
.scroll-down {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    width: 4px;
    height: 8px;
    background: var(--gta-white);
    left: 50%;
    transform: translateX(-50%);
    top: 10px;
    border-radius: 2px;
    animation: scrollMove 2s infinite;
}

@keyframes scrollMove {
    0% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }

    100% {
        transform: translateX(-50%) translateY(20px);
        opacity: 0;
    }
}

/* Global Section Container */
.section-container {
    padding: 25px 40px;
    position: relative;
    background: #000;
}

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

.section-title {
    font-size: 0.9rem;
    font-weight: 900;
    letter-spacing: 0.5em;
    color: var(--accent-green-bright);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.section-title::after {
    content: '';
    height: 1px;
    flex: 1;
    background: linear-gradient(90deg, var(--accent-green), transparent);
    margin-left: 20px;
}

.section-desc {
    color: var(--gta-white);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 25px;
    line-height: 1.2;
    max-width: 800px;
}

@media (max-width: 768px) {
    .section-desc {
        font-size: 1.1rem;
        margin-bottom: 15px;
    }
}

/* Concept */
.concept-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.concept-visual {
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: #000;
}

.concept-poster {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    filter: contrast(1.05);
    will-change: transform;
}

.concept-text-main {
    font-size: clamp(1.2rem, 3vw, 2.5rem);
    font-weight: 700;
    line-height: 1.6;
}

.reveal-text {
    opacity: 0.1;
    transform: translateY(20px);
    transition: all 1s ease;
}

.reveal-text.in-view {
    opacity: 1;
    transform: translateY(0);
}

.highlight {
    color: #fff;
    text-shadow: 0 0 20px var(--accent-green);
}

/* Members */
.members-split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.member-list-side {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.member-vertical-card {
    background: rgba(255, 255, 255, 0.02);
    border-left: 4px solid var(--accent-green);
    padding: 15px 25px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    transition: all 0.4s var(--anim-smooth);
    cursor: pointer;
    overflow: hidden;
}

.member-card-header {
    display: flex;
    align-items: center;
    gap: 25px;
    width: 100%;
    position: relative;
}

.member-toggle {
    margin-left: auto;
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--accent-green-bright);
    transition: transform 0.4s var(--anim-smooth), opacity 0.3s;
    opacity: 0.5;
}

@media (hover: hover) {
    .member-vertical-card:hover .member-toggle {
        opacity: 1;
    }

    .member-vertical-card:hover {
        background: rgba(26, 77, 46, 0.15);
        border-left-color: var(--accent-green-bright);
    }
}

.member-vertical-card.active .member-toggle {
    transform: rotate(45deg);
    color: var(--gta-white);
}

.member-vertical-card.active {
    background: rgba(26, 77, 46, 0.2);
    border-left-color: var(--accent-green-bright);
}

/* 詳細部分のスタイル - Gridを使用した高さアニメーション */
.member-detail {
    display: grid;
    grid-template-rows: 0fr;
    opacity: 0;
    transition: grid-template-rows 0.6s var(--anim-smooth), opacity 0.4s ease, margin 0.6s var(--anim-smooth), padding 0.6s var(--anim-smooth);
    font-size: 0.9rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.7);
    padding-left: 55px;
    pointer-events: none;
    white-space: pre-wrap;
    overflow: hidden;
}

.member-detail-inner {
    min-height: 0;
}

.member-vertical-card.active .member-detail {
    grid-template-rows: 1fr;
    opacity: 1;
    margin-top: 15px;
    padding-bottom: 5px;
    pointer-events: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 15px;
}

.member-vertical-card .num {
    font-size: 1.2rem;
    font-weight: 900;
    color: var(--accent-green-bright);
    opacity: 0.6;
}

.m-info h3 {
    font-size: 1.1rem;
    font-family: var(--font-heading);
    margin-bottom: 2px;
}

.m-info p {
    font-size: 0.75rem;
    color: #888;
    letter-spacing: 0.1em;
}

@media (hover: hover) {
    .member-vertical-card:hover .m-info p {
        color: var(--accent-green-bright);
    }
}

.member-visual-side {
    position: sticky;
    top: 100px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.members-poster {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

/* Sounds & Videos: Unified Meta Style */
.item-meta {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.meta-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.tag {
    font-size: 0.7rem;
    font-weight: 900;
    letter-spacing: 0.15em;
    padding: 3px 10px;
    background: var(--accent-green);
    color: var(--gta-white);
}

.label {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--accent-green-bright);
    letter-spacing: 0.1em;
    opacity: 0.8;
}

.item-title {
    font-size: 1.6rem;
    font-weight: 900;
    font-family: var(--font-heading);
    color: var(--gta-white);
    letter-spacing: -0.01em;
    margin-bottom: 6px;
    line-height: 1.2;
}

.item-desc {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
    line-height: 1.6;
    max-width: 90%;
    white-space: pre-wrap;
}

.coming-soon {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.2);
    letter-spacing: 0.3em;
    font-family: var(--font-heading);
    padding: 20px 0;
    font-style: italic;
}

.sc-cropper {
    width: 100%;
    height: 120px;
    overflow: hidden;
    position: relative;
    background: #000;
}

.sc-player {
    position: absolute;
    top: -1px;
    left: -1px;
    width: calc(100% + 2px);
    height: calc(120px + 2px);
    border: none;
    outline: none;
    filter: invert(1) grayscale(1) brightness(1) contrast(1.2);
    transition: all 0.4s var(--anim-smooth);
}

@media (hover: hover) {
    .sound-item:hover .sc-player {
        filter: invert(1) grayscale(1) brightness(1.4) contrast(1.2);
    }
}

/* Grid & List Layouts */
.common-grid,
.works-grid,
.sounds-list,
.live-list,
.works-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.work-card,
.sound-item,
.generic-item {
    border: none;
    background: transparent;
}

.video-preview {
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
    position: relative;
    overflow: hidden;
    border: none;
}

.video-preview.thumbnail-mode {
    cursor: pointer;
    background: #111;
}

.ref-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
    transition: all 0.4s var(--anim-smooth);
}

.play-overlay {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 25px 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    opacity: 0.9;
    transition: all 0.4s var(--anim-smooth);
    pointer-events: none;
}

.play-icon {
    font-size: 2rem;
    color: var(--accent-green-bright);
}

.play-text {
    font-size: 0.85rem;
    font-weight: 900;
    color: var(--gta-white);
    letter-spacing: 0.25em;
    white-space: nowrap;
}

.ref-card-link {
    text-decoration: none;
    display: block;
}

@media (hover: hover) {
    .ref-card-link:hover .ref-thumb {
        opacity: 1;
        transform: scale(1.03);
    }

    .ref-card-link:hover .play-overlay {
        opacity: 1;
    }

    .video-preview:hover iframe {
        opacity: 1;
    }
}

.video-preview iframe {
    position: absolute;
    top: -1px;
    left: -1px;
    width: calc(100% + 2px);
    height: calc(100% + 2px);
    opacity: 0.6;
    border: none;
    transition: opacity 0.4s ease;
}

/* Gallery */
.gallery-grid {
    column-count: 3;
    column-gap: 20px;
}

@media (max-width: 900px) {
    .gallery-grid {
        column-count: 2;
    }
}

@media (max-width: 600px) {
    .gallery-grid {
        column-count: 1;
    }
}

.gallery-item {
    position: relative;
    overflow: hidden;
    margin-bottom: 20px;
    background: #111;
    break-inside: avoid;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    filter: none;
    opacity: 0.6;
    transition: opacity 0.4s ease;
}

@media (hover: hover) {
    .gallery-item:hover img {
        opacity: 1;
    }

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

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    padding: 15px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    width: 100%;
    font-size: 0.75rem;
    opacity: 0;
    transition: 0.3s;
}

/* Connect & References */
.connect-list,
.references-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.common-link-card,
.connect-link,
.ref-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    background: rgba(255, 255, 255, 0.02);
    border-left: 4px solid var(--accent-green);
    text-decoration: none;
    color: var(--gta-white);
    transition: all 0.4s var(--anim-smooth);
}

@media (hover: hover) {

    .common-link-card:hover,
    .connect-link:hover,
    .ref-link:hover {
        background: rgba(26, 77, 46, 0.15);
        border-left-color: var(--accent-green-bright);
    }
}

.platform,
.ref-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gta-white);
}

.ref-url {
    font-size: 0.7rem;
    opacity: 0.5;
}

.arrow {
    color: var(--accent-green);
    font-weight: 900;
}

/* Footer */
footer {
    padding: 60px 40px;
    text-align: center;
    border-top: 2px solid var(--accent-green);
}

.footer-logo {
    font-size: 1.8rem;
    font-family: var(--font-heading);
    margin-bottom: 15px;
    color: var(--gta-white);
}

.copyright {
    font-size: 0.65rem;
    opacity: 0.4;
    letter-spacing: 0.3em;
}

/* Responsive */
@media (max-width: 1024px) {

    .concept-grid,
    .members-split-layout,
    .common-grid,
    .sounds-list,
    .live-list,
    .works-list,
    .works-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .member-visual-side {
        position: static;
        order: -1;
    }
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 2001;
    padding: 15px;
    /* Increased touch target size */
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gta-white);
    transition: 0.3s;
}

@media (max-width: 900px) {
    .nav-toggle {
        display: flex;
    }

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        background: rgba(0, 0, 0, 0.98);
        backdrop-filter: blur(20px);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: 0.4s var(--anim-smooth);
        z-index: 2000;
    }

    nav.active {
        right: 0;
    }

    nav ul {
        flex-direction: column;
        gap: 35px;
        text-align: center;
    }

    nav a {
        font-size: 1.3rem;
        opacity: 0.8;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

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

    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
}

@media (max-width: 768px) {
    .section-container {
        padding: 20px 25px;
    }

    .section-title {
        font-size: 0.8rem;
        margin-bottom: 12px;
    }

    .hero-logo-large {
        width: 180px;
    }

    .concept-text-main {
        font-size: 1.1rem;
    }

    .members-poster,
    .concept-poster {
        height: auto;
        max-height: none;
        object-fit: contain;
    }

    .item-title {
        font-size: 1.3rem;
    }

    .item-desc {
        font-size: 0.75rem;
    }

    footer {
        padding: 25px;
    }

    .footer-logo {
        font-size: 1.4rem;
    }
}

/* Collapsible Section (References) */
.collapsible .toggle-trigger {
    cursor: pointer;
    user-select: none;
}

.collapsible .toggle-icon {
    display: inline-block;
    margin-left: 15px;
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--accent-green-bright);
    transition: transform 0.4s var(--anim-smooth);
}

.collapsible:not(.collapsed) .toggle-icon {
    transform: rotate(45deg);
}

.collapsible-content {
    max-height: 5000px;
    /* 十分な高さ */
    opacity: 1;
    overflow: hidden;
    transition: all 0.6s var(--anim-smooth);
}

.collapsible.collapsed .collapsible-content {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
}

/* Link for generic items (More Info) */
.more-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    color: var(--accent-green-bright);
    font-size: 0.8rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 0.1em;
    font-family: var(--font-heading);
    transition: color 0.3s, transform 0.3s var(--anim-smooth);
}

.more-link:hover {
    color: var(--gta-white);
    transform: translateX(4px);
}

.more-link .arrow {
    font-weight: 900;
}