:root {
      --bg-navy: #050b14;
      --bg-panel: rgba(5, 12, 25, 0.75);
      --bg-panel-hover: rgba(8, 20, 40, 0.9);
      --text-main: #e2e8f0;
      --text-muted: #94a3b8;
      --yda-cyan: #00f0ff;
      --yda-cyan-dim: rgba(0, 240, 255, 0.15);
      --yda-pink: #ff0055;
      --yda-pink-dim: rgba(255, 0, 85, 0.15);
      --font-stack: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", sans-serif;
      --wrap: min(1100px, 92vw);
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      color: var(--text-main); background-color: var(--bg-navy);
      background-image: linear-gradient(var(--yda-cyan-dim) 1px, transparent 1px), linear-gradient(90deg, var(--yda-cyan-dim) 1px, transparent 1px);
      background-size: 40px 40px; font-family: var(--font-stack); line-height: 1.8; overflow-x: hidden; padding-bottom: 90px;
    }
    body::before { content: ""; position: fixed; inset: 0; pointer-events: none; z-index: -1; background: radial-gradient(circle at center, transparent 30%, var(--bg-navy) 100%); }
    :focus-visible { outline: 2px solid var(--yda-cyan); outline-offset: 2px; }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; text-decoration: none; }
    button, input { font: inherit; }
    .wrap { width: var(--wrap); margin: 0 auto; }
    .section { padding: clamp(80px, 8vw, 120px) 0; }
    .reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.8s ease, transform 0.8s ease; will-change: opacity, transform; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    noscript .reveal { opacity: 1; transform: translateY(0); }

    .cyber-btn { display: inline-flex; justify-content: center; align-items: center; gap: 8px; background: rgba(0, 240, 255, 0.1); color: var(--yda-cyan) !important; font-weight: 900; font-size: clamp(14px, 2vw, 16px); padding: 16px 32px; border: 1px solid var(--yda-cyan); box-shadow: inset 0 0 10px rgba(0, 240, 255, 0.2), 0 0 10px rgba(0, 240, 255, 0.2); cursor: pointer; position: relative; overflow: hidden; clip-path: polygon(15px 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%, 0 15px); transition: 0.3s; letter-spacing: 0.05em; }
    .cyber-btn::before { content: ""; position: absolute; top: 0; left: -100%; width: 50%; height: 100%; background: linear-gradient(90deg, transparent, rgba(0,240,255,0.4), transparent); transform: skewX(-20deg); transition: 0s; }
    .cyber-btn:hover { background: rgba(0, 240, 255, 0.2); text-shadow: 0 0 8px var(--yda-cyan); transform: translateY(-2px); }
    .cyber-btn:hover::before { left: 200%; transition: 0.5s ease; }
    .cyber-btn.pink { background: rgba(255, 0, 85, 0.1); color: var(--yda-pink) !important; border-color: var(--yda-pink); box-shadow: inset 0 0 10px rgba(255, 0, 85, 0.2), 0 0 10px rgba(255, 0, 85, 0.2); }
    .cyber-btn.pink:hover { background: rgba(255, 0, 85, 0.2); text-shadow: 0 0 8px var(--yda-pink); }
    .cyber-btn.pink::before { background: linear-gradient(90deg, transparent, rgba(255,0,85,0.4), transparent); }

    .cyber-panel { background: var(--bg-panel); border: 1px solid rgba(0, 240, 255, 0.3); box-shadow: inset 0 0 20px rgba(0, 240, 255, 0.05), 0 10px 30px rgba(0,0,0,0.5); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px); padding: clamp(32px, 5vw, 48px); position: relative; transition: 0.3s; }
    .cyber-panel:hover { border-color: var(--yda-cyan); background: var(--bg-panel-hover); box-shadow: inset 0 0 20px rgba(0, 240, 255, 0.1), 0 15px 40px rgba(0,0,0,0.6); }

    .topbar { position: sticky; top: 0; z-index: 1000; background: rgba(5, 11, 20, 0.9); backdrop-filter: blur(16px); border-bottom: 1px solid var(--yda-cyan-dim); box-shadow: 0 4px 20px rgba(0,0,0,0.5); }
    .topbar-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 12px 0; min-height: 64px; }
    .logo-area h1 { font-size: clamp(13px, 2vw, 15px); letter-spacing: 0.05em; color: #fff; font-weight: 900; line-height: 1.3; }
    .logo-area p { font-size: 10px; color: var(--yda-cyan); font-weight: 700; margin-top: 2px; letter-spacing: 0.05em; }
    .nav-links { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
    .nav-link-item { font-size: 12px; font-weight: 800; padding: 8px 12px; border-radius: 4px; transition: 0.2s; color: var(--text-main); text-transform: uppercase; letter-spacing: 0.05em; }
    .nav-link-item:hover { color: var(--yda-cyan); background: var(--yda-cyan-dim); text-shadow: 0 0 8px var(--yda-cyan); }
    
    .hero { position: relative; padding: clamp(60px, 8vw, 100px) 0 60px; min-height: 75vh; display: flex; align-items: center; }
    .hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; position: relative; z-index: 2; }
    .hero-badge { display: inline-flex; align-items: center; font-size: 11px; font-weight: 900; color: #000; background: var(--yda-cyan); padding: 4px 12px; clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px); margin-bottom: 24px; letter-spacing: 0.1em; box-shadow: 0 0 15px rgba(0, 240, 255, 0.5); }
    .hero h2 { font-size: clamp(36px, 5vw, 64px); line-height: 1.25; font-weight: 900; margin-bottom: 24px; color: #fff; text-shadow: 0 0 20px rgba(0,0,0,0.8); letter-spacing: 0.02em; }
    .hero h2 em { font-style: normal; color: var(--yda-cyan); text-shadow: 0 0 15px var(--yda-cyan); }
    .hero p { font-size: clamp(15px, 2vw, 17px); color: var(--text-main); line-height: 1.9; margin-bottom: 40px; background: rgba(0,0,0,0.6); padding: 20px 24px; border-left: 3px solid var(--yda-pink); text-shadow: 0 1px 2px rgba(0,0,0,0.8); }
    
    .hero-graphic { position: relative; }
    .hero-graphic-inner { background: #02050a; border: 1px solid var(--yda-cyan-dim); box-shadow: 0 0 40px rgba(0,240,255,0.1), inset 0 0 20px rgba(0,240,255,0.05); padding: 2px; position: relative; overflow: hidden; display: flex; flex-direction: column; aspect-ratio: 4/3; clip-path: polygon(30px 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%, 0 30px); }
    .hero-graphic-inner::after { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(0deg, rgba(0,0,0,0.15), rgba(0,0,0,0.15) 1px, transparent 1px, transparent 2px); pointer-events: none; }
    .hg-content { background: var(--bg-navy); flex: 1; padding: 32px; display: flex; flex-direction: column; justify-content: space-between; position: relative; z-index: 2; }
    .hg-header { display: flex; justify-content: space-between; font-family: ui-monospace, monospace; font-size: 11px; color: var(--yda-pink); border-bottom: 1px solid var(--yda-pink-dim); padding-bottom: 12px; }
    .hg-body { flex: 1; display: flex; flex-direction: column; justify-content: center; }
    .hg-body h3 { font-size: clamp(22px, 3vw, 32px); font-weight: 900; color: #fff; margin-bottom: 16px; text-shadow: 0 0 10px rgba(255,255,255,0.3); line-height: 1.4; }
    .hg-body p { color: var(--yda-cyan); font-size: 14px; font-family: ui-monospace, monospace; line-height: 1.6; }

    .section-header { text-align: center; margin-bottom: 56px; }
    .section-kicker { font-size: 12px; font-weight: 900; letter-spacing: 0.25em; color: var(--yda-cyan); margin-bottom: 16px; display: inline-block; font-family: ui-monospace, monospace; border: 1px solid var(--yda-cyan-dim); padding: 6px 16px; background: rgba(0,240,255,0.05); }
    .section-title { font-size: clamp(28px, 4vw, 40px); font-weight: 900; line-height: 1.4; margin-bottom: 20px; color: #fff; text-shadow: 0 0 15px rgba(0,0,0,0.8); }
    .section-desc { font-size: 16px; color: var(--text-muted); max-width: 720px; margin: 0 auto; line-height: 1.9; }

    /* Article & Video Simulation Custom Style */
    .article-list { margin-bottom: 24px; padding-left: 0; list-style: none; }
    .article-list li { position: relative; padding-left: 28px; margin-bottom: 12px; color: var(--text-main); font-weight: 700; }
    .article-list li::before { content: "▶"; position: absolute; left: 0; top: 2px; font-size: 12px; color: var(--yda-cyan); }
    
    .article-highlight { background: rgba(0, 240, 255, 0.05); border-left: 4px solid var(--yda-cyan); padding: 20px 24px; border-radius: 0 8px 8px 0; margin-bottom: 24px; font-weight: bold; line-height: 1.8; color: #fff; font-size: 15px; }

    /* プログラミングターミナル（動画代替） */
    .code-terminal { background: #02040a; border: 1px solid rgba(0, 240, 255, 0.3); border-radius: 8px; overflow: hidden; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), inset 0 0 15px rgba(0, 240, 255, 0.05); width: 100%; aspect-ratio: 16/10; display: flex; flex-direction: column; position: relative; }
    .code-terminal::after { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(0deg, rgba(0,0,0,0.1), rgba(0,0,0,0.1) 1px, transparent 1px, transparent 2px); pointer-events: none; }
    .ct-header { background: #0a0f1a; padding: 10px 16px; display: flex; align-items: center; border-bottom: 1px solid rgba(0, 240, 255, 0.2); }
    .ct-dots { display: flex; gap: 6px; margin-right: 16px; }
    .ct-dot { width: 10px; height: 10px; border-radius: 50%; }
    .ct-dot.r { background: #ff5f56; } .ct-dot.y { background: #ffbd2e; } .ct-dot.g { background: #27c93f; }
    .ct-title { font-family: ui-monospace, monospace; font-size: 11px; color: var(--text-muted); letter-spacing: 0.1em; }
    .ct-body { padding: 16px; flex: 1; overflow: hidden; font-family: "Fira Code", ui-monospace, monospace; font-size: 13px; line-height: 1.6; color: #a5d6ff; position: relative; }
    .ct-content { position: absolute; bottom: 16px; left: 16px; right: 16px; display: flex; flex-direction: column; gap: 4px; }
    .ct-line { display: flex; gap: 12px; opacity: 0; animation: typeLine 0.1s forwards; }
    .ct-num { color: #484f58; user-select: none; width: 24px; text-align: right; font-size: 11px; margin-top: 2px; }
    .ct-text { flex: 1; word-break: break-all; }
    .ct-kw { color: #ff7b72; } /* Keyword */
    .ct-fn { color: #d2a8ff; } /* Function */
    .ct-str { color: #a5d6ff; } /* String */
    .ct-cm { color: #8b949e; } /* Comment */
    @keyframes typeLine { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

    /* Interactive Experience (Game) */
    .game-section { position: relative; }
    .game-layout { display: flex; flex-direction: column; gap: 32px; max-width: 960px; margin: 0 auto; }
    .game-monitor { background: #000; border: 1px solid var(--yda-cyan); padding: 8px; position: relative; box-shadow: 0 0 30px rgba(0, 240, 255, 0.15); clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px); }
    .game-monitor::after { content: ""; position: absolute; inset: 8px; pointer-events: none; background: repeating-linear-gradient(0deg, rgba(0,0,0,0.2), rgba(0,0,0,0.2) 1px, transparent 1px, transparent 3px); z-index: 10; }
    .game-canvas-wrapper { background-color: #020408; width: 100%; aspect-ratio: 16/9; position: relative; overflow: hidden; }
    #gameCanvas { width: 100%; height: 100%; display: block; cursor: pointer; position: relative; z-index: 5; }
    .hack-flash { position: absolute; inset: 0; background: var(--yda-cyan); opacity: 0; pointer-events: none; transition: opacity 0.1s; z-index: 20; }
    .game-score-area { display: flex; justify-content: space-between; align-items: center; font-family: ui-monospace, monospace; margin-top: 12px; padding: 0 4px; }
    .score-disp { font-size: 20px; font-weight: 900; color: var(--yda-cyan); text-shadow: 0 0 10px var(--yda-cyan); }
    .game-controls-hint { font-size: 12px; color: var(--text-muted); }

    /* IDE Panel */
    .ide-panel { background: #0a0d14; border: 1px solid rgba(255,0,85,0.3); box-shadow: 0 10px 30px rgba(0,0,0,0.5); font-family: ui-monospace, monospace; position: relative; }
    .ide-panel::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--yda-pink); }
    .ide-header { background: rgba(255,0,85,0.1); padding: 12px 20px; display: flex; gap: 10px; border-bottom: 1px solid rgba(255,0,85,0.2); align-items: center; color: var(--yda-pink); font-size: 12px; font-weight: bold; letter-spacing: 0.1em; }
    .ide-dot { width: 10px; height: 10px; border-radius: 50%; } .ide-dot.r { background: #ff5f56; } .ide-dot.y { background: #ffbd2e; } .ide-dot.g { background: #27c93f; }
    .ide-body { padding: 24px; }
    .ide-line { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; flex-wrap: wrap; font-size: 15px; }
    .ide-num { color: #475569; user-select: none; width: 28px; text-align: right; }
    .ide-code { color: #e2e8f0; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
    .ide-keyword { color: var(--yda-pink); } .ide-obj { color: var(--yda-cyan); }
    .ide-input { background: #000; border: 1px solid var(--yda-cyan-dim); color: var(--yda-cyan); padding: 8px 12px; font-family: inherit; font-size: 15px; font-weight: bold; width: 80px; text-align: center; outline: none; transition: 0.2s; }
    .ide-input:focus { border-color: var(--yda-cyan); box-shadow: 0 0 15px rgba(0,240,255,0.4); }
    .ide-comment { color: #64748b; font-size: 13px; margin-left: 8px; }
    .ide-footer { padding: 20px; background: rgba(0,0,0,0.4); border-top: 1px solid rgba(255,255,255,0.05); text-align: right; }

    /* Diagnosis */
    .diag-topline { display: flex; justify-content: space-between; font-size: 12px; font-weight: 800; color: var(--text-muted); margin-bottom: 16px; font-family: ui-monospace, monospace; }
    .diag-progress { background: #0f172a; height: 4px; overflow: hidden; margin-bottom: 40px; }
    .diag-bar { height: 100%; width: 20%; background: var(--yda-cyan); transition: width 0.4s ease; box-shadow: 0 0 10px var(--yda-cyan); }
    .diag-q-text { font-size: clamp(18px, 3vw, 22px); font-weight: 900; line-height: 1.6; text-align: center; margin-bottom: 48px; min-height: 80px; color: #fff; }
    .diag-btn-grid { display: grid; gap: 16px; }
    .diag-btn { background: rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.1); color: #fff; padding: 20px 24px; text-align: left; font-size: clamp(15px, 2vw, 16px); font-weight: 700; cursor: pointer; transition: 0.2s; display: flex; align-items: center; gap: 16px; clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px); }
    .diag-btn:hover { background: var(--yda-cyan-dim); border-color: var(--yda-cyan); transform: translateX(5px); box-shadow: inset 0 0 15px rgba(0,240,255,0.15); }
    .result-box { display: none; text-align: center; animation: fadeIn 0.5s ease; }
    @keyframes fadeIn { from { opacity:0; transform:translateY(15px); } to { opacity:1; transform:translateY(0); } }
    .result-title { font-size: clamp(24px, 4vw, 32px); font-weight: 900; margin-bottom: 16px; color: var(--yda-cyan); text-shadow: 0 0 15px rgba(0,240,255,0.5); }
    .result-tags { color: var(--yda-pink); font-weight: 800; margin-bottom: 32px; font-family: ui-monospace, monospace; font-size: 14px; letter-spacing: 0.05em; }
    .result-desc { background: rgba(0,0,0,0.6); padding: 32px; border-left: 3px solid var(--yda-cyan); text-align: left; margin-bottom: 40px; font-size: 15px; }
    .result-desc h4 { color: var(--yda-cyan); margin-bottom: 16px; font-size: 18px; font-weight: 900; }

    /* Features */
    .grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
    .feature-card { background: var(--bg-panel); border: 1px solid rgba(255,255,255,0.05); padding: 40px 32px; transition: 0.3s; height: 100%; display: flex; flex-direction: column; position: relative; overflow: hidden; }
    .feature-card::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: transparent; transition: 0.3s; }
    .feature-card:hover { background: var(--bg-panel-hover); box-shadow: 0 15px 40px rgba(0,0,0,0.6); transform: translateY(-4px); border-color: rgba(0,240,255,0.2); }
    .feature-card:hover::before { background: var(--yda-cyan); box-shadow: 0 0 15px var(--yda-cyan); }
    .fc-num { font-family: ui-monospace, monospace; font-size: 48px; font-weight: 900; color: rgba(255,255,255,0.05); line-height: 1; margin-bottom: 16px; transition: 0.3s; }
    .feature-card:hover .fc-num { color: rgba(0,240,255,0.1); }
    .feature-card h4 { font-size: 20px; font-weight: 900; margin-bottom: 16px; color: #fff; line-height: 1.4; }
    .feature-card p { color: var(--text-muted); font-size: 15px; flex: 1; line-height: 1.9; }

    /* Tables */
    .table-wrapper { background: var(--bg-panel); border: 1px solid rgba(255,255,255,0.1); overflow-x: auto; padding: 1px; margin-bottom: 48px; }
    .custom-table { width: 100%; border-collapse: collapse; min-width: 720px; text-align: left; }
    .custom-table th, .custom-table td { padding: 20px 24px; border-bottom: 1px solid rgba(255,255,255,0.05); }
    .custom-table th { font-weight: 800; color: var(--text-muted); font-size: 13px; text-transform: uppercase; background: rgba(0,0,0,0.4); letter-spacing: 0.05em; }
    .custom-table td { font-size: 15px; line-height: 1.7; }
    .custom-table tr:last-child td { border-bottom: none; }
    .td-highlight { background: var(--yda-cyan-dim); color: #fff; font-weight: 700; border-left: 3px solid var(--yda-cyan); }
    .td-label { font-weight: 900; color: #fff; width: 25%; }

    /* FAQ */
    .faq-list { display: flex; flex-direction: column; gap: 16px; max-width: 800px; margin: 0 auto; }
    .faq-item { background: rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.1); transition: 0.2s; border-left: 3px solid transparent; }
    .faq-item:hover { border-color: rgba(0,240,255,0.3); border-left-color: var(--yda-cyan); background: rgba(0,0,0,0.6); }
    .faq-summary { padding: 24px; font-size: 16px; font-weight: 900; color: #fff; cursor: pointer; display: flex; justify-content: space-between; align-items: center; list-style: none; }
    .faq-summary::-webkit-details-marker { display: none; }
    .faq-summary::after { content: "+"; font-size: 24px; color: var(--yda-cyan); font-weight: normal; transition: 0.3s; line-height: 1; }
    .faq-item[open] .faq-summary::after { transform: rotate(45deg); color: var(--yda-pink); }
    .faq-content { padding: 0 24px 24px; color: var(--text-muted); font-size: 15px; line-height: 1.9; border-top: 1px dashed rgba(255,255,255,0.1); margin-top: -4px; padding-top: 20px; }

    /* Footer & Utils */
    .site-footer { background: #000; border-top: 1px solid rgba(255,255,255,0.1); padding: 80px 0 120px; font-size: 14px; }
    .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 48px; margin-bottom: 48px; }
    .footer-logo { font-size: 20px; font-weight: 900; color: #fff; margin-bottom: 16px; letter-spacing: 0.05em; }
    .footer-address { color: var(--text-muted); font-style: normal; line-height: 1.9; }
    .footer-links { display: flex; flex-direction: column; gap: 12px; }
    .footer-links a { color: var(--yda-cyan); transition: 0.2s; display: inline-flex; align-items: center; }
    .footer-links a::before { content: ">"; font-family: monospace; margin-right: 8px; font-size: 12px; }
    .footer-links a:hover { color: #fff; text-decoration: underline; text-shadow: 0 0 10px var(--yda-cyan); }
    .footer-copy { text-align: center; color: #475569; font-size: 12px; border-top: 1px solid #1e293b; padding-top: 32px; font-family: ui-monospace, monospace; }

    .sticky-cta { position: fixed; right: 24px; bottom: 24px; z-index: 999; background: var(--yda-pink); padding: 16px 24px; font-weight: 900; color: #fff; border: 1px solid #fff; box-shadow: 0 0 20px rgba(255,0,85,0.5); cursor: pointer; display: flex; align-items: center; gap: 12px; transition: 0.3s; font-size: 15px; clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px); }
    .sticky-cta:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(255,0,85,0.8); }
    .modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.85); backdrop-filter: blur(5px); z-index: 2000; display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: 0.3s; padding: 20px; }
    .modal-overlay.open { opacity: 1; pointer-events: auto; }
    .modal-content { background: var(--bg-navy); border: 1px solid var(--yda-cyan); padding: 40px; width: 100%; max-width: 500px; position: relative; box-shadow: 0 0 60px rgba(0,240,255,0.2); clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px); }
    .modal-close { position: absolute; top: 20px; right: 20px; background: none; border: none; color: var(--text-muted); font-size: 32px; cursor: pointer; line-height: 1; padding: 4px; transition: 0.2s; }
    .modal-close:hover { color: var(--yda-pink); }
    .form-input { width: 100%; background: rgba(0,0,0,0.6); border: 1px solid rgba(255,255,255,0.2); color: #fff; padding: 16px; font-size: 15px; margin-bottom: 16px; transition: 0.2s; border-radius: 4px; }
    .form-input:focus { outline: none; border-color: var(--yda-cyan); background: rgba(0,240,255,0.05); box-shadow: 0 0 10px rgba(0,240,255,0.1); }

    .toast { position: fixed; left: 50%; transform: translateX(-50%); bottom: 24px; z-index: 3000; background: #000; border: 1px solid var(--yda-cyan); border-left: 4px solid var(--yda-cyan); padding: 16px 24px; color: #fff; font-weight: bold; font-size: 14px; box-shadow: 0 0 20px rgba(0,240,255,0.3); transform: translateY(100px); opacity: 0; transition: 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
    .toast.show { transform: translateY(0); opacity: 1; }
    .skip-link { position: absolute; left: -9999px; z-index: 9999; padding: 1em; background-color: #fff; color: #000; text-decoration: none; font-weight: bold; }
    .skip-link:focus { left: 50%; transform: translateX(-50%); top: 10px; }

    @media (max-width: 800px) {
      .hero-grid { grid-template-columns: 1fr; gap: 32px; }
      .ide-line { flex-direction: column; align-items: flex-start; gap: 6px; }
      .ide-num { display: none; }
      .sticky-cta { left: 16px; right: 16px; bottom: 16px; justify-content: center; text-align: center; }
      .topbar-inner { flex-direction: column; gap: 12px; }
      .nav-links { justify-content: center; }
      body { padding-bottom: 100px; }
      .ct-body { font-size: 11px; }
    }
    @media (prefers-reduced-motion: reduce) { *,*::before,*::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; } }