/* --- Color Variables (共通設定) --- */
:root {
    --transition-speed: 0.4s;
    --sidebar-width: 280px; /* サイドバーの幅 */
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-color: #080808;
    --sidebar-bg: #050505; /* サイドバーは少し暗く */
    --card-bg: #121212;
    --text-main: #e0e0e0;
    --text-sub: #888888;
    --card-border: #222;
    --card-hover-bg: #1a1a1a;
    
    --bamboo-green: #7abf75;
    --bamboo-glow: rgba(122, 191, 117, 0.4);
    --bamboo-node: #4d7a4a;
    --stalk-gradient-start: #1a2e1a;
    --stalk-gradient-mid: #2d4f2c;

    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 12px 40px rgba(122, 191, 117, 0.1);
    
    --modal-bg: #151515;
    --modal-overlay: rgba(0, 0, 0, 0.85);
    --input-bg: #0a0a0a;

    --sun-opacity: 0; --sun-scale: 0.5; --sun-rotate: 90deg;
    --moon-opacity: 1; --moon-scale: 1; --moon-rotate: 0deg;
}

/* Light Theme */
[data-theme="light"] {
    --bg-color: #f9fcf9;
    --sidebar-bg: #f0f4f0;
    --card-bg: #ffffff;
    --text-main: #2c3e2d;
    --text-sub: #5a6e5b;
    --card-border: #e0e0e0;
    --card-hover-bg: #f4f9f4;

    --bamboo-green: #4a8c46;
    --bamboo-glow: rgba(74, 140, 70, 0.2);
    --bamboo-node: #8dbf8a;
    --stalk-gradient-start: #e8f5e8;
    --stalk-gradient-mid: #ccebcc;

    --shadow: 0 4px 20px rgba(45, 79, 44, 0.08);
    --shadow-hover: 0 10px 30px rgba(45, 79, 44, 0.15);

    --modal-bg: #ffffff;
    --modal-overlay: rgba(255, 255, 255, 0.8);
    --input-bg: #f5f5f7;

    --sun-opacity: 1; --sun-scale: 1; --sun-rotate: 0deg;
    --moon-opacity: 0; --moon-scale: 0.5; --moon-rotate: -90deg;
}

/* --- Base Settings --- */
html {
    scroll-behavior: smooth; /* スムーズスクロール */
    scroll-padding-top: 80px; /* スクロール時の余白 */
}

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

body {
    font-family: 'Manrope', 'Zen Kaku Gothic New', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* --- Layout Structure --- */
.layout-wrapper { display: flex; min-height: 100vh; }

/* Sidebar (Left) */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--card-border);
    padding: 40px 30px;
    display: flex; flex-direction: column; justify-content: space-between;
    position: fixed; height: 100vh; top: 0; left: 0; z-index: 100;
    transition: background-color var(--transition-speed);
}
.sidebar-header .logo {
    font-size: 2.5rem; font-weight: 800; letter-spacing: -0.05em; line-height: 1; margin-bottom: 20px;
}
.logo .dot { color: var(--bamboo-green); }
.bamboo-char { color: var(--bamboo-green); font-family: inherit; }
.bio { font-size: 0.85rem; color: var(--text-sub); line-height: 1.5; }

.sidebar-nav { margin-top: 60px; display: flex; flex-direction: column; gap: 15px; }
.nav-label { font-size: 0.7rem; text-transform: uppercase; color: var(--bamboo-green); letter-spacing: 2px; margin-bottom: 10px; opacity: 0.8; }
.nav-link {
    text-decoration: none; color: var(--text-main); font-size: 0.95rem;
    font-weight: 600; transition: all 0.3s; display: block;
    border-left: 2px solid transparent; padding-left: 0;
}
.nav-link:hover { padding-left: 10px; border-left-color: var(--bamboo-green); color: var(--bamboo-green); }

.sidebar-footer { display: flex; align-items: center; justify-content: space-between; margin-top: auto; }
.copyright { font-size: 0.7rem; color: var(--text-sub); font-family: monospace; }

/* Main Content (Right) */
.main-content {
    margin-left: var(--sidebar-width); flex: 1; padding: 60px 50px 100px;
    width: calc(100% - var(--sidebar-width));
}
.content-section { margin-bottom: 80px; opacity: 0; animation: fadeIn 1.5s ease-out forwards; }
.section-title {
    font-size: 0.9rem; font-family: monospace; color: var(--text-sub);
    border-bottom: 1px solid var(--card-border); padding-bottom: 10px;
    margin-bottom: 30px; letter-spacing: 1px;
}

/* --- Bamboo Art --- */
.bamboo-bg {
    position: fixed; top: 0; right: 5%; height: 100vh; width: 50px; z-index: -1;
    display: flex; justify-content: center; opacity: 0.6; pointer-events: none;
}
.stalk {
    width: 8px; height: 100%;
    background: linear-gradient(to right, var(--stalk-gradient-start), var(--stalk-gradient-mid), var(--stalk-gradient-start));
    position: relative; box-shadow: 0 0 20px var(--bamboo-glow); border-left: 1px solid rgba(128,128,128,0.1);
}
.stalk::after {
    content: ''; position: absolute; top: 0; left: -3px; width: 14px; height: 100%;
    background-image: repeating-linear-gradient(to bottom, transparent 0px, transparent 140px, var(--bamboo-green) 140px, var(--bamboo-green) 142px, var(--bamboo-node) 142px, var(--bamboo-node) 144px);
    opacity: 0.8;
}

/* --- Cards --- */
.grid-wrapper { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.card {
    background: var(--card-bg); border: 1px solid var(--card-border);
    border-radius: 8px; padding: 25px; box-shadow: var(--shadow);
    transition: all 0.3s ease; text-decoration: none; color: inherit;
    position: relative; display: flex; flex-direction: column; justify-content: space-between;
    height: 180px; overflow: hidden;
}
.card:hover {
    transform: translateY(-3px); border-color: var(--bamboo-green);
    box-shadow: var(--shadow-hover); background: var(--card-hover-bg);
}

.profile-card { height: auto; border-left: 4px solid var(--bamboo-green); }
.profile-card h2 { font-size: 1.5rem; margin-bottom: 10px; color: var(--text-main); }
.profile-card p { color: var(--text-sub); font-size: 0.9rem; margin-bottom: 12px; }
.idol-block { margin-top: 8px; padding: 12px; border: 1px solid var(--card-border); border-radius: 10px; background: var(--card-hover-bg); }
.idol-title { font-size: 0.9rem; color: var(--text-main); font-weight: 800; margin-bottom: 4px; letter-spacing: 0.5px; }
.idol-intro { color: var(--text-sub); font-size: 0.85rem; margin-bottom: 8px; }
.idol-list { list-style: disc; padding-left: 20px; color: var(--text-main); display: grid; gap: 4px; }
.idol-list li { color: var(--text-sub); }
.idol-chips { margin-top: 10px; display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 10px; border-radius: 999px;
    background: rgba(122, 191, 117, 0.12);
    color: var(--text-main); border: 1px solid rgba(122, 191, 117, 0.35);
    font-size: 0.75rem; line-height: 1;
}
.card-label {
    font-size: 0.7rem; text-transform: uppercase; letter-spacing: 2px;
    color: var(--bamboo-green); margin-bottom: 15px; display: block; font-weight: bold;
}

.card-top { display: flex; justify-content: space-between; align-items: center; }
.service-name { font-size: 1.2rem; font-weight: 700; color: var(--text-main); }
.status-dot { width: 6px; height: 6px; background: var(--bamboo-green); border-radius: 50%; box-shadow: 0 0 8px var(--bamboo-green); }
.service-desc { font-size: 0.85rem; color: var(--text-sub); margin-top: auto; margin-bottom: 15px; }
.card-footer { font-size: 0.75rem; color: var(--text-sub); font-family: monospace; border-top: 1px solid var(--card-border); padding-top: 10px; width: 100%; }
.card.locked { opacity: 0.6; cursor: pointer; }
.card.locked:hover { opacity: 1; border-color: var(--text-sub); }

/* --- Theme Button --- */
.theme-btn {
    background: transparent; border: 1px solid var(--card-border);
    color: var(--text-main); width: 36px; height: 36px; border-radius: 50%;
    cursor: pointer; position: relative; overflow: hidden; display: grid; place-items: center;
    transition: all 0.3s;
}
.theme-btn:hover { border-color: var(--bamboo-green); background: var(--card-hover-bg); }
.theme-btn .icon { position: absolute; transition: all 0.5s; }
.sun-icon { opacity: var(--sun-opacity); transform: rotate(var(--sun-rotate)) scale(var(--sun-scale)); }
.moon-icon { opacity: var(--moon-opacity); transform: rotate(var(--moon-rotate)) scale(var(--moon-scale)); }

/* --- Modal --- */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: var(--modal-overlay); backdrop-filter: blur(5px);
    z-index: 10000; display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; transition: all 0.3s;
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-content {
    background: var(--modal-bg); padding: 40px; border-radius: 12px;
    width: 90%; max-width: 350px; text-align: center; border: 1px solid var(--card-border);
    transform: scale(0.9); transition: transform 0.3s;
}
.modal-overlay.active .modal-content { transform: scale(1); }
.modal-title { font-size: 1.2rem; color: var(--text-main); margin-bottom: 5px; }
.modal-desc { font-size: 0.8rem; color: var(--text-sub); margin-bottom: 20px; }
.modal-input {
    width: 100%; padding: 10px; background: var(--input-bg);
    border: 1px solid var(--card-border); color: var(--text-main);
    border-radius: 6px; font-size: 1.1rem; outline: none; margin-bottom: 20px;
    text-align: center; font-family: monospace; letter-spacing: 3px;
}
.modal-input:focus { border-color: var(--bamboo-green); }
.modal-actions { display: flex; gap: 10px; justify-content: center; }
button { padding: 8px 24px; border-radius: 4px; font-size: 0.8rem; font-weight: 600; cursor: pointer; border: none; }
.btn-cancel { background: transparent; color: var(--text-sub); border: 1px solid var(--card-border); }
.btn-enter { background: var(--bamboo-green); color: #fff; }

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

/* --- Responsive (Mobile App Style) --- */
@media (max-width: 768px) {
    html { scroll-padding-top: 130px; }
    .layout-wrapper { flex-direction: column; }
    
    .sidebar {
        width: 100%; height: auto; min-height: auto; position: sticky; top: 0; z-index: 1000;
        padding: 15px 20px; border-right: none; border-bottom: 1px solid rgba(128, 128, 128, 0.1);
        background-color: rgba(var(--bg-color-rgb), 0.85);
        backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
        display: block;
    }
    [data-theme="dark"] .sidebar { background-color: rgba(5, 5, 5, 0.8); }
    [data-theme="light"] .sidebar { background-color: rgba(240, 244, 240, 0.85); }

    .sidebar-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0; }
    .sidebar-header .logo { font-size: 1.8rem; margin-bottom: 0; }
    .bio { display: none; } 

    .sidebar-footer { position: absolute; top: 15px; right: 20px; margin-top: 0; width: auto; }
    .copyright { display: none; }

    .sidebar-nav {
        margin-top: 15px; flex-direction: row; gap: 15px;
        overflow-x: auto; white-space: nowrap; padding-bottom: 5px;
        -webkit-overflow-scrolling: touch;
    }
    .sidebar-nav::-webkit-scrollbar { display: none; }
    .nav-label { display: none; }

    .nav-link {
        font-size: 0.8rem; background: var(--card-bg); border: 1px solid var(--card-border);
        padding: 6px 12px; border-radius: 20px; padding-left: 12px;
        border-left: 1px solid var(--card-border);
    }
    .nav-link:active { background: var(--bamboo-green); color: #fff; border-color: var(--bamboo-green); }

    .main-content { width: 100%; margin-left: 0; padding: 30px 20px 80px; }
    .bamboo-bg { right: -20px; opacity: 0.3; }
}