/* =========================================
       Variables & Reset
       ========================================= */
    :root {
      --primary: #ff3366; 
      --primary-dark: #cc0033;
      --accent-cyan: #33ccff;
      --accent-green: #00c853;
      --bg: #0f172a; 
      --bg-panel: #1e293b;
      --text: #f8fafc;
      --text-muted: #94a3b8;
      --glass-border: rgba(255, 255, 255, 0.1);
      --wrap: min(1120px, 92vw);
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 12px;
      --bottom-bar-height: 72px;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body { background: var(--bg); color: var(--text); font-family: 'Noto Sans JP', 'Inter', sans-serif; line-height: 1.8; overflow-x: hidden; display: flex; flex-direction: column; min-height: 100vh; }
    @media (max-width: 900px) { body { padding-bottom: calc(var(--bottom-bar-height) + env(safe-area-inset-bottom, 20px)); } }
    
    a { color: inherit; text-decoration: none; transition: 0.3s; }
    img, video { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    ul, ol { list-style: none; }
    button { font-family: inherit; cursor: pointer; border: none; background: none; }

    /* =========================================
       Layout Utilities & Typography
       ========================================= */
    .wrap { width: var(--wrap); margin: 0 auto; }
    .section { padding: clamp(60px, 8vw, 100px) 0; }
    .grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
    .grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 25px; }
    
    /* ★修正: flex関連のユーティリティクラスを完全に追加 */
    .flex { display: flex; }
    .flex-wrap { flex-wrap: wrap; }
    .justify-center { justify-content: center; }
    .gap-4 { gap: 16px; }

    .text-center { text-align: center; }
    .text-primary { color: var(--primary); }
    .text-muted { color: var(--text-muted); }
    .text-gradient { background: linear-gradient(90deg, var(--primary), var(--accent-cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .fw-bold { font-weight: 700; }
    .fw-black { font-weight: 900; }
    .mb-2 { margin-bottom: 8px; }
    .mb-4 { margin-bottom: 16px; }
    .mb-6 { margin-bottom: 24px; }
    .mb-8 { margin-bottom: 32px; }
    .mb-12 { margin-bottom: 48px; }

    .section-kicker { font-size: 12px; letter-spacing: 0.15em; color: var(--accent-cyan); font-weight: 900; margin-bottom: 12px; font-family: 'Inter', sans-serif; text-transform: uppercase; }
    .section-title { font-size: clamp(26px, 4vw, 34px); font-weight: 900; line-height: 1.4; margin-bottom: 16px; }
    .section-desc { color: var(--text-muted); font-size: 15px; max-width: 850px; margin: 0 auto 48px; line-height: 1.8; font-weight: 700; }

    /* =========================================
       Animations (Scroll Reveal)
       ========================================= */
    .fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
    .fade-up.is-visible { opacity: 1; transform: translateY(0); }
    @media (prefers-reduced-motion: reduce) {
      .fade-up { opacity: 1; transform: none; transition: none; }
    }

    /* =========================================
       Header & Navigation
       ========================================= */
    .topbar { position: sticky; top: 0; z-index: 1000; background: rgba(15, 23, 42, 0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--glass-border); padding: 12px 0; }
    .topbar-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
    .brand { font-weight: 900; font-size: 15px; display: flex; align-items: center; gap: 8px; color: #fff; }
    .brand-mark { width: 12px; height: 12px; background: linear-gradient(135deg, var(--primary), var(--accent-cyan)); border-radius: 50%; box-shadow: 0 0 10px var(--primary); }
    .nav { display: flex; gap: 15px; font-size: 12px; font-weight: 700; flex-wrap: wrap; justify-content: flex-end; align-items: center; }
    .nav a { color: var(--text-muted); text-decoration: none; transition: 0.3s; padding: 6px 12px; border-radius: 999px; }
    .nav a:hover, .nav a:focus-visible { background: rgba(255,255,255,0.05); color: #fff; outline: 2px solid var(--primary); }
    
    /* Mobile Drawer Menu */
    .menu-toggle { display: none; width: 28px; height: 20px; position: relative; z-index: 10001; }
    .menu-toggle .bar { position: absolute; width: 100%; height: 2px; background: #fff; border-radius: 2px; transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1); left: 0; }
    .menu-toggle .bar:nth-child(1) { top: 0; }
    .menu-toggle .bar:nth-child(2) { top: 9px; }
    .menu-toggle .bar:nth-child(3) { bottom: 0; }
    .menu-toggle.is-active .bar:nth-child(1) { transform: translateY(9px) rotate(45deg); }
    .menu-toggle.is-active .bar:nth-child(2) { opacity: 0; }
    .menu-toggle.is-active .bar:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }
    @media (max-width: 900px) { 
      .nav { display: none; } 
      .menu-toggle { display: block; } 
    }

    .mobile-menu { position: fixed; top: 0; right: 0; width: 100%; height: 100vh; background: rgba(15, 23, 42, 0.98); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); z-index: 10000; transform: translateX(100%); transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1); padding: 80px 24px 40px; overflow-y: auto; display: flex; flex-direction: column; visibility: hidden; opacity: 0;}
    .mobile-menu.is-open { transform: translateX(0); visibility: visible; opacity: 1;}
    .mobile-links { display: flex; flex-direction: column; gap: 20px; margin-top: 24px; }
    .mobile-link { font-size: 16px; font-weight: 900; color: #fff; display: block; width: fit-content; border-bottom: 2px solid transparent; }
    .mobile-link:hover { border-color: var(--primary); }

    /* PC Side Tabs */
    .side-tabs { position: fixed; right: 0; top: 50%; z-index: 200; display: flex; flex-direction: column; gap: 12px; transform: translateY(-50%); }
    .side-tab { text-decoration: none; color: #fff; font-weight: 900; letter-spacing: 0.5px; box-shadow: -8px 10px 24px rgba(0,0,0,0.3); border-radius: 16px 0 0 16px; padding: 16px 14px 16px 18px; display: flex; align-items: center; gap: 10px; transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1); border: 1px solid rgba(255,255,255,0.1); min-width: 84px; justify-content: flex-end; outline: none; }
    .side-tab:focus-visible { outline: 3px solid #fff; }
    .side-tab:hover { transform: translateX(-8px); box-shadow: -12px 14px 28px rgba(0,0,0,0.4); }
    .side-tab span { writing-mode: vertical-rl; text-orientation: mixed; font-size: 14px; line-height: 1; }
    .side-tab .badge { width: 28px; height: 28px; border-radius: 50%; background: rgba(255,255,255,0.25); display: flex; align-items: center; justify-content: center; font-size: 12px; flex: 0 0 auto; box-shadow: inset 0 2px 4px rgba(0,0,0,0.2); }
    .doc-side { background: linear-gradient(135deg, var(--primary), #ff6b8f); }
    .line-side { background: linear-gradient(135deg, var(--accent-green), #00e676); }
    @media (max-width: 900px) { .side-tabs { display: none; } }

    /* Sticky Bottom Bar (Mobile) */
    .sticky-bottom-bar { position: fixed; bottom: 0; left: 0; width: 100%; z-index: 999; padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px)); background: rgba(15, 23, 42, 0.95); backdrop-filter: blur(10px); border-top: 1px solid var(--glass-border); display: flex; gap: 12px; }
    .sticky-bottom-bar .btn { flex: 1; padding: 12px; border-radius: 12px; font-size: 14px; }
    @media (min-width: 901px) { .sticky-bottom-bar { display: none; } }

    /* Buttons */
    .btn { display: inline-block; padding: 20px 48px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; font-weight: 900; border-radius: 999px; font-size: 16px; box-shadow: 0 8px 25px rgba(255,51,102,0.4); text-decoration: none; transition: 0.3s; border: none; cursor: pointer; text-align: center; }
    .btn:focus-visible { outline: 3px solid #fff; outline-offset: 4px; }
    .btn:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 12px 30px rgba(255,51,102,0.6); filter: brightness(1.1); }
    .btn-outline { background: rgba(255,255,255,0.05); border: 2px solid rgba(255,255,255,0.2); box-shadow: none; backdrop-filter: blur(4px); }
    .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; transform: translateY(-3px); box-shadow: 0 10px 20px rgba(0,0,0,0.3); }

    /* Glass Panels & Cards */
    .glass-panel { background: rgba(255, 255, 255, 0.03); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border: 1px solid var(--glass-border); border-radius: var(--radius-lg); padding: clamp(32px, 5vw, 56px); box-shadow: 0 10px 30px rgba(0,0,0,0.5); }
    .card { background: rgba(255, 255, 255, 0.02); border-radius: var(--radius-md); padding: 32px; border: 1px solid var(--glass-border); transition: all 0.3s ease; display: flex; flex-direction: column; height: 100%; border-top: 4px solid var(--primary); }
    .card:hover { transform: translateY(-8px); background: rgba(255, 255, 255, 0.04); border-color: rgba(255,255,255,0.3); box-shadow: 0 20px 40px rgba(0,0,0,0.4); border-top-color: var(--accent-cyan); }
    .card.blue-top { border-top-color: var(--accent-cyan); }

    /* Hero Section */
    .hero { position: relative; min-height: 85svh; background: #000; overflow: hidden; display: flex; align-items: center; color: #fff; }
    .hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(15,23,42,0.9) 0%, rgba(15,23,42,0.4) 100%); z-index: 1; pointer-events: none; }
    .hero-v-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.6; }
    .hero-c { position: relative; z-index: 2; padding: 40px 0; width: 100%; }
    
    .hero h1 { font-size: clamp(28px, 4.5vw, 48px); font-weight: 900; line-height: 1.3; margin: 0; text-shadow: 0 4px 20px rgba(0,0,0,0.8); letter-spacing: 0.02em; }
    .hero-box { background: rgba(15,23,42,0.6); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); padding: 24px 32px; border-radius: 16px; border: 1px solid rgba(255,255,255,0.1); max-width: 540px; margin: 24px 0 32px 0; box-shadow: 0 20px 40px rgba(0,0,0,0.5); }
    .hero-box p { font-size: 15px; font-weight: 700; line-height: 1.8; margin-bottom: 16px; }
    .hero-box ul { display: flex; flex-direction: column; gap: 8px; }
    .hero-box li { font-size: 13px; font-weight: 700; color: var(--accent-cyan); display: flex; align-items: center; }
    .hero-box li::before { content: "✓"; margin-right: 8px; color: #fff; background: var(--primary); width: 16px; height: 16px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 10px; }

    /* Courses Grid */
    .course-card h3 { color: #fff; font-size: 20px; margin-bottom: 12px; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 12px; display: flex; flex-direction: column; gap: 4px; }
    .course-card h3 small { font-size: 13px; color: var(--accent-cyan); }
    .course-card p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

    /* Videos Section */
    .video-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 32px; }
    .v-item { background: rgba(255,255,255,0.02); border-radius: var(--radius-md); overflow: hidden; box-shadow: 0 15px 30px rgba(0,0,0,0.4); border: 1px solid var(--glass-border); transition: 0.3s; }
    .v-item:hover { transform: translateY(-5px); border-color: rgba(255,255,255,0.2); }
    .v-box { position: relative; aspect-ratio: 16/9; background: #000; }
    .v-box video { width: 100%; height: 100%; object-fit: cover; display: block; border-radius: 0; }
    .v-info { padding: 24px; }
    .v-info strong { display: block; font-size: 18px; color: var(--primary); margin-bottom: 8px; }
    .v-info { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
    .more-videos { margin-top: 16px; padding-top: 16px; border-top: 1px dashed rgba(255,255,255,0.1); font-size: 13px; }
    .more-videos a { color: var(--accent-cyan); text-decoration: none; font-weight: bold; display: inline-flex; align-items: center; margin-top: 4px; }
    .more-videos a:hover { text-decoration: underline; color: #fff; }
    .video-notice { color: var(--primary); font-size: 12px; margin-top: 8px; font-weight: bold; }

    /* Jobs Section */
    .job-categories { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); margin-top: 32px; }
    .job-category { background: rgba(255,255,255,0.02); padding: 32px; border-radius: var(--radius-md); box-shadow: 0 10px 30px rgba(0,0,0,0.3); border-top: 4px solid var(--primary); border-left: 1px solid var(--glass-border); border-right: 1px solid var(--glass-border); border-bottom: 1px solid var(--glass-border); }
    .job-category.blue { border-top-color: var(--accent-cyan); }
    .job-category.gray { border-top-color: var(--text-muted); }
    .job-category h3 { margin: 0 0 20px; font-size: 20px; color: #fff; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 12px; }
    .job-item { margin: 0 0 12px; font-size: 13.5px; color: var(--text-muted); line-height: 1.6; display: flex; flex-direction: column; }
    .job-item strong { color: var(--accent-cyan); margin-bottom: 2px; }
    .job-category:not(.blue):not(.gray) .job-item strong { color: var(--primary); }

    .news-list { display: grid; gap: 16px; margin-top: 24px; }
    .news-item { background: rgba(255,255,255,0.03); border-radius: 12px; padding: 20px; border-left: 4px solid var(--accent-cyan); font-size: 14px; color: var(--text-muted); line-height: 1.6; }
    .news-item strong { color: #fff; display: block; margin-bottom: 4px; font-size: 15px; }

    /* クリエイター適性チェック (Traits) */
    .checklist-wrap { background: var(--bg-panel); border: 2px solid var(--accent-cyan); border-radius: var(--radius-lg); padding: clamp(24px, 5vw, 48px); box-shadow: 0 10px 40px rgba(0, 210, 255, 0.15); position: relative; overflow: hidden; margin-top: 24px;}
    .checklist-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin-bottom: 32px; }
    
    .check-item { background: rgba(255,255,255,0.03); border: 2px solid var(--glass-border); border-radius: 16px; padding: 20px; display: flex; align-items: flex-start; gap: 16px; cursor: pointer; transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); text-align: left; width: 100%; outline: none;}
    .check-item:focus-visible { box-shadow: 0 0 0 3px var(--accent-cyan); }
    .check-item:hover { background: rgba(255,255,255,0.06); transform: translateY(-3px); }
    .check-item.is-active { background: rgba(0, 210, 255, 0.15); border-color: var(--accent-cyan); box-shadow: 0 10px 20px rgba(0, 210, 255, 0.2); transform: translateY(-3px); }
    
    .check-box { width: 28px; height: 28px; border-radius: 8px; border: 2px solid var(--text-muted); display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: 0.3s; background: rgba(0,0,0,0.2); }
    .check-item.is-active .check-box { background: var(--accent-cyan); border-color: var(--accent-cyan); }
    .check-box::after { content: "✓"; color: #000; font-weight: 900; font-size: 16px; opacity: 0; transform: scale(0.5); transition: 0.3s; }
    .check-item.is-active .check-box::after { opacity: 1; transform: scale(1); }
    
    .check-text h3 { font-size: 15px; font-weight: 900; color: #fff; margin-bottom: 4px; }
    .check-text p { font-size: 12px; color: var(--text-muted); line-height: 1.5; }

    .check-result { text-align: center; margin-top: 32px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.1); display: none; animation: slideUp 0.5s ease-out forwards; }
    .check-result.is-visible { display: block; }
    .result-bar-bg { width: 100%; height: 8px; background: rgba(255,255,255,0.1); border-radius: 4px; margin-bottom: 16px; overflow: hidden; }
    .result-bar-fill { height: 100%; background: linear-gradient(90deg, var(--accent-cyan), var(--primary)); width: 0%; transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
    @keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

    /* CTA Section */
    .cta-wrap { background: linear-gradient(135deg, rgba(255,51,102,0.1), rgba(0,210,255,0.1)); border: 1px solid var(--glass-border); border-radius: var(--radius-lg); padding: clamp(40px, 8vw, 80px) 24px; text-align: center; position: relative; overflow: hidden; }
    .cta-wrap::after { content: ""; position: absolute; inset: 0; background: url('./images/ogp.jpg') center/cover; opacity: 0.05; mix-blend-mode: overlay; pointer-events: none; }
    .cta-points { display: flex; justify-content: center; gap: 16px; margin-bottom: 40px; flex-wrap: wrap; }
    .cta-tag { background: rgba(255,51,102,0.15); border: 1px solid var(--primary); color: #fff; padding: 8px 20px; border-radius: 99px; font-size: 13px; font-weight: 900; backdrop-filter: blur(4px); }

    /* Footer */
    footer { background: #000; color: rgba(255,255,255,0.5); text-align: center; padding: 40px 20px 60px; font-size: 12px; margin-top: auto; border-top: 1px solid rgba(255,255,255,0.1); }
    .footer-links { display: flex; justify-content: center; gap: 20px; margin-bottom: 20px; flex-wrap: wrap; }
    .footer-links a { color: var(--text-muted); font-weight: 700; transition: color 0.2s;}
    .footer-links a:hover { color: #fff; }