/* ============================================
   Cue - Base CSS
   ============================================ */

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

:root {
    --primary: #000000;
    --primary-hover: #1a1a1a;
    --accent: #6366F1;
    --accent-light: #818CF8;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --mission: #8B5CF6;
    --debug: #06B6D4;

    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --bg-tertiary: #F3F4F6;

    --text-primary: #111827;
    --text-secondary: #6B7280;
    --text-tertiary: #9CA3AF;

    --border-color: #E5E7EB;
    --border-light: #F3F4F6;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);

    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-primary);
    line-height: 1.5;
    background: var(--bg-secondary);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

.header-inner {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 24px;
    box-sizing: border-box;
    flex-wrap: nowrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 18px;
    height: 18px;
    color: white;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    flex: 1;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.15s;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

/* 右側の要素（ボタン、言語セレクタ、メニュー）をまとめる */
.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

/* ===== User Menu ===== */
.user-menu {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.15s;
}

.user-btn:hover {
    background: var(--bg-secondary);
}

.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

.user-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-btn i {
    font-size: 10px;
    color: var(--text-tertiary);
    transition: transform 0.15s;
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 180px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.15s;
    z-index: 200;
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    font-size: 14px;
    color: var(--text-primary);
    text-decoration: none;
    transition: background 0.15s;
}

.user-dropdown a:hover {
    background: var(--bg-secondary);
}

.user-dropdown a i {
    width: 16px;
    color: var(--text-tertiary);
}

.user-dropdown hr {
    margin: 4px 0;
    border: none;
    border-top: 1px solid var(--border-light);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all 0.15s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

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

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-lg {
    padding: 14px 24px;
    font-size: 15px;
}

/* ===== Common ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   Language Selector (Header Dropdown)
   ============================================ */
.language-selector {
    position: relative;
    margin-left: 8px;
}

.language-display {
    display: flex;
    align-items: center;
    padding: 6px 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.language-display .flag {
    width: 20px;
    height: 15px;
    border-radius: 2px;
    object-fit: cover;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.15s;
}

.language-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-tertiary);
}

.language-btn .flag {
    width: 20px;
    height: 15px;
    border-radius: 2px;
    object-fit: cover;
}

.language-btn .chevron {
    font-size: 10px;
    color: var(--text-tertiary);
    transition: transform 0.2s;
}

.language-selector.open .language-btn .chevron {
    transform: rotate(180deg);
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 180px;
    max-height: 320px;
    overflow-y: auto;
    background: #1a1a1a;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
}

.language-selector.open .language-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    cursor: pointer;
    color: #ccc;
    font-size: 14px;
    transition: all 0.15s;
}

.language-item:first-child {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.language-item:last-child {
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.language-item:hover {
    background: #2a2a2a;
    color: white;
}

.language-item.active {
    background: #333;
    color: white;
}

.language-item .flag {
    width: 20px;
    height: 15px;
    border-radius: 2px;
    object-fit: cover;
    flex-shrink: 0;
}

.language-item .lang-name {
    white-space: nowrap;
    font-size: 13px;
}

/* 言語ドロップダウンのスクロールバー */
.language-dropdown::-webkit-scrollbar {
    width: 6px;
}

.language-dropdown::-webkit-scrollbar-track {
    background: #1a1a1a;
}

.language-dropdown::-webkit-scrollbar-thumb {
    background: #444;
    border-radius: 3px;
}

.language-dropdown::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* ===== Mobile Menu Button ===== */
.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}

.mobile-menu-btn:hover {
    background: var(--bg-tertiary);
}

.mobile-menu-btn svg {
    width: 20px;
    height: 20px;
    color: var(--text-primary);
}

/* ===== Mobile Overlay ===== */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ===== Mobile Navigation ===== */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -300px;
    width: 280px;
    height: 100vh;
    background: var(--bg-primary);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: right 0.3s ease;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
}

.mobile-nav.open {
    right: 0;
}

.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-close {
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: background 0.15s;
}

.mobile-nav-close:hover {
    background: var(--bg-tertiary);
}

.mobile-nav-close svg {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
}

.mobile-nav-links {
    flex: 1;
    padding: 16px 0;
    overflow-y: auto;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.15s;
}

.mobile-nav-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.mobile-nav-link.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.mobile-nav-link i {
    width: 20px;
    text-align: center;
    font-size: 16px;
}

.mobile-nav-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mobile-btn {
    width: 100%;
    justify-content: center;
}

/* Responsive */
@media (max-width: 768px) {
    .header-nav {
        display: none;
    }

    .header-actions .btn {
        display: none;
    }

    .header-actions {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .header-inner {
        padding: 12px 16px;
    }

    .header-right {
        gap: 8px;
    }

    .language-selector {
        margin: 0;
    }

    .language-btn {
        padding: 6px 10px;
    }

    .language-dropdown {
        width: 160px;
        max-height: 280px;
    }
}

@media (max-width: 480px) {
    .header-inner {
        padding: 10px 12px;
    }

    .header-right {
        gap: 6px;
    }

    .logo-icon {
        width: 28px;
        height: 28px;
    }

    .logo-icon svg {
        width: 16px;
        height: 16px;
    }

    .logo-text {
        font-size: 18px;
    }

    .mobile-menu-btn {
        width: 36px;
        height: 36px;
    }

    .mobile-menu-btn svg {
        width: 18px;
        height: 18px;
    }

    .language-btn {
        padding: 6px 8px;
    }

    .language-btn .chevron {
        display: none;
    }
}