@charset "UTF-8";

/* =========================================
   Variables & Reset
   ========================================= */
:root {
    /* Colors */
    --color-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-accent: #333333;
    --color-subtle: #f9f9f9;
    --color-border: #e0e0e0;
    --color-overlay: rgba(0, 0, 0, 0.95);

    /* Fonts */
    --font-main: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
    --font-heading: "Shippori Mincho", serif;
    --font-sans: "Helvetica Neue", Arial, sans-serif;
    --font-start: "Courier New", monospace;
    --font-logo: "Secular One", sans-serif;

    /* Spacing */
    --spacing-sm: 16px;
    --spacing-md: 32px;
    --spacing-lg: 64px;
    --spacing-xl: 120px;
    --header-height: 80px;

    /* Animations */
    --transition-speed: 0.4s;
    --ease-out: cubic-bezier(0.25, 1, 0.5, 1);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 2;
    -webkit-font-smoothing: antialiased;
    letter-spacing: 0.05em;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: opacity var(--transition-speed) var(--ease-out), color var(--transition-speed) var(--ease-out);
}

a:hover {
    opacity: 0.6;
}

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

/* =========================================
   Typography & Utilities
   ========================================= */
h1,
h2,
h3 {
    font-family: var(--font-heading);
    font-weight: 500;
    letter-spacing: 0.1em;
    line-height: 1.4;
}

.text-system {
    font-family: var(--font-start);
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

.text-center {
    text-align: center;
}

.text-justify {
    text-align: justify;
}

.sp-only {
    display: none;
}

.pc-only {
    display: block;
}

@media screen and (max-width: 768px) {
    .sp-only {
        display: block;
    }

    .pc-only {
        display: none;
    }
}

/* Buttons */
.btn-primary {
    display: inline-block;
    padding: 14px 40px;
    background-color: var(--color-text);
    color: var(--color-bg);
    border: 1px solid var(--color-text);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    transition: all var(--transition-speed) var(--ease-out);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background-color: var(--color-bg);
    z-index: -1;
    transition: width var(--transition-speed) var(--ease-out);
}

.btn-primary:hover {
    color: var(--color-text);
}

.btn-primary:hover::after {
    width: 100%;
}

/* =========================================
   Animations
   ========================================= */
/* Fade Up on Scroll */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}

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

/* =========================================
   Navigation (Desktop Fixed)
   ========================================= */
/* =========================================
   Navigation & Header
   ========================================= */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 40px;
    background-color: transparent;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.logo-text {
    font-family: var(--font-logo);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-text);
    letter-spacing: 0.1em;
}

.logo-image {
    height: calc(var(--header-height) - 30px);
    width: auto;
    display: block;
}



/* Desktop Nav (Default) */
.nav-links {
    display: flex;
    gap: 30px;
    margin-left: auto;
    /* Push to right */
    order: 2;
    /* Nav before Social */
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    position: relative;
    padding-bottom: 5px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 1px;
    background-color: var(--color-text);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a.current {
    color: var(--color-accent);
}

.nav-links a.current::after {
    width: 100%;
}

/* Social Icons Adjustment */
.social-links {
    order: 3;
    /* Social after Nav */
    margin-left: 30px;
    /* Gap from Nav */
}

/* Hamburger (Mobile Only) */
.hamburger {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    margin: 5px auto;
    background-color: var(--color-text);
    transition: all 0.3s ease-in-out;
}

/* Mobile Styles */
@media screen and (max-width: 768px) {
    header {
        padding: 0 20px;
    }

    .hamburger {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right 0.4s ease;
        padding-top: 60px;
        order: unset;
        margin-left: 0;
    }

    .nav-links.active {
        right: 0;
    }

    /* Hamburger Animation */
    .hamburger.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
}

/* =========================================
   Social Media Icons (Header)
   ========================================= */
.social-links {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-right: 20px;
    /* Space between icons and hamburger */
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    color: var(--color-text);
    transition: color 0.3s ease, transform 0.3s ease;
}

.social-icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

.social-icon:hover {
    color: var(--color-accent);
    transform: scale(1.1);
}

/* =========================================
   Gallery (Performance Photos)
   ========================================= */
.gallery-section {
    padding: var(--spacing-xl) 0;
    background-color: #1a1a1a;
    color: #fff;
    text-align: center;
}

.gallery-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-start);
    letter-spacing: 0.1em;
    color: #888;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 0 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3/2;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    filter: grayscale(30%);
}

.gallery-item:hover img {
    transform: scale(1.05);
    filter: grayscale(0%);
}

/* =========================================
   Homepage (index.html)
   ========================================= */
body.home {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background-color: #fff;
}

#logo-container {
    width: 100%;
    max-width: 600px;
    padding: 20px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 2s ease, transform 2s ease;
    display: flex;
    justify-content: center;
}

#logo-container.visible {
    opacity: 1;
    transform: translateY(0);
}

.enter-btn-wrapper {
    margin-top: 50px;
    opacity: 0;
    transition: opacity 1s ease 1s;
}

.enter-btn-wrapper.visible {
    opacity: 1;
}

/* =========================================
   Members / Archive Page
   ========================================= */
.page-title {
    text-align: center;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    font-size: 1.8rem;
    color: var(--color-text);
    letter-spacing: 0.15em;
    font-weight: 400;
}

.members-grid,
.archive-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md) var(--spacing-xl);
}

.member-card,
.archive-card {
    display: flex;
    flex-direction: column;
    background-color: transparent;
    padding: 20px;
    gap: var(--spacing-sm);
    transition: transform var(--transition-speed) var(--ease-out);
    border: 1px solid transparent;
}

.member-card:hover,
.archive-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-border);
}

.member-card {
    flex-direction: row;
    /* Keep row for members */
    align-items: flex-start;
}

.member-image {
    object-fit: cover;
    flex-shrink: 0;
    /* Color by default */
    width: 120px;
    height: 160px;
}


.archive-card {
    text-decoration: none;
    color: inherit;
}

@media screen and (min-width: 1024px) {
    .member-card {
        padding: 30px;
        gap: var(--spacing-md);
    }

    .member-image {
        width: 150px;
        height: 200px;
    }
}


.archive-image {
    object-fit: cover;
    flex-shrink: 0;
    filter: grayscale(100%);
    transition: filter var(--transition-speed) ease;
}

.archive-image {
    width: 100%;
    height: 250px;
    margin-bottom: 20px;
}

.archive-card:hover .archive-image {
    filter: grayscale(0%);
}

.member-info {
    flex-grow: 1;
    padding-top: 5px;
}

.member-role {
    font-size: 0.75rem;
    color: #888;
    margin-bottom: 8px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.member-name {
    font-size: 1.1rem;
    color: var(--color-text);
    margin-bottom: 4px;
    font-weight: 500;
    letter-spacing: 0.1em;
}

.member-name-en {
    font-size: 0.7rem;
    color: #aaa;
    font-family: var(--font-sans);
    letter-spacing: 0.05em;
}

.archive-title {
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.archive-date {
    font-family: var(--font-start);
    font-size: 0.8rem;
    color: #888;
    margin-bottom: 12px;
}

.archive-desc {
    font-size: 0.9rem;
    line-height: 1.8;
}

/* =========================================
   About Page
   ========================================= */
.content-wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.intro {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.intro h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.intro h2 {
    font-size: 1rem;
    color: #888;
    letter-spacing: 0.2em;
    margin-bottom: var(--spacing-lg);
}

.text-body {
    margin-bottom: var(--spacing-lg);
}

/* =========================================
   Story / Performance Page (Dark)
   ========================================= */
.story-container {
    display: flex;
    min-height: 100vh;
    padding-top: var(--header-height);
}

.story-visual {
    width: 40%;
    position: fixed;
    top: 0;
    /* Full height visual */
    bottom: 0;
    left: 0;
    overflow: hidden;
    z-index: 0;
}

.story-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 5s ease;
}

.story-visual:hover img {
    transform: scale(1.05);
}

.story-info {
    width: 60%;
    margin-left: 40%;
    padding: var(--spacing-xl) var(--spacing-lg);
    background-color: #111;
    color: #ddd;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

.story-subtitle {
    font-family: var(--font-start);
    font-size: 0.9rem;
    color: #888;
    margin-bottom: 20px;
    letter-spacing: 0.1em;
}

.story-title {
    font-size: 3rem;
    margin-bottom: 40px;
    color: #fff;
    letter-spacing: 0.1em;
    font-weight: 400;
}

.story-desc {
    font-size: 1rem;
    line-height: 2.2;
    margin-bottom: 60px;
    text-align: justify;
}

.story-details {
    border-top: 1px solid #333;
    border-bottom: 1px solid #333;
    padding: 30px 0;
    margin-bottom: 40px;
}

/* Footer (Global) */
footer {
    padding: 40px 20px;
    background-color: #111;
    color: #666;
    text-align: center;
    font-family: var(--font-start);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
}

/* Responsive */
@media screen and (max-width: 900px) {
    .story-container {
        flex-direction: column;
        padding-top: 60px;
    }

    .story-visual {
        width: 100%;
        height: 50vh;
        position: relative;
        top: 0;
    }

    .story-info {
        width: 100%;
        margin-left: 0;
        padding: 40px 20px;
    }

    .story-title {
        font-size: 2rem;
    }
}

/* =========================================
   Fade Slider (SP only)
   ========================================= */

.gallery-fade-slider {
    display: none;
}

@media screen and (max-width: 768px) {

    .gallery-grid {
        display: none;
    }

    .gallery-fade-slider {
        display: block;
        position: relative;
        max-width: 90%;
        margin: 0 auto;
        padding: 0 24px;
    }

    .gallery-fade-track {
        position: relative;
        width: 100%;
        aspect-ratio: 3 / 2;
        overflow: hidden;
    }

    .gallery-fade-track img {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: 0;
        transition:
            opacity 1.4s ease,
            transform 1.4s ease;
        filter: grayscale(30%);
        transform: scale(1);
    }


    .gallery-fade-track img.active {
        opacity: 1;
        z-index: 1;
        filter: grayscale(0%);
        transform: scale(1.01);
    }

    /* ===== 矢印 ===== */
    .slider-arrow {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 32px;
        height: 32px;
        background: none;
        border: none;
        cursor: pointer;
        z-index: 2;
        opacity: 0.5;
    }

    .slider-arrow:hover {
        opacity: 1;
    }

    .slider-arrow::before {
        content: '';
        display: block;
        width: 10px;
        height: 10px;
        border-top: 1px solid var(--color-text);
        border-right: 1px solid var(--color-text);
    }

    .slider-arrow.prev {
        left: -24px;
    }

    .slider-arrow.prev::before {
        transform: rotate(-135deg);
    }

    .slider-arrow.next {
        right: -24px;
    }

    .slider-arrow.next::before {
        transform: rotate(45deg);
    }

    .slider-counter {
        text-align: center;
        margin-top: 16px;
        font-family: var(--font-start);
        font-size: 0.75rem;
        letter-spacing: 0.2em;
        color: #888;
    }

}