:root {
            --bg-main: #08080a;
            --bg-card: rgba(18, 20, 26, 0.85);
            --border-card: rgba(255, 255, 255, 0.1);
            
            --genin-color: #ff9900;
            --genin-glow: rgba(255, 153, 0, 0.3);
            
            --chunin-color: #22c55e;
            --chunin-glow: rgba(34, 197, 94, 0.3);
            
            --jounin-color: #3b82f6;
            --jounin-glow: rgba(59, 130, 246, 0.35);
            
            --kage-color: #ef4444;
            --kage-glow: rgba(239, 68, 68, 0.35);

            --text-main: #f8fafc;
            --text-muted: #94a3b8;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Plus Jakarta Sans', sans-serif; }
        body { 
            background-color: var(--bg-main); 
            background-image: radial-gradient(circle at 50% 0%, rgba(255, 85, 0, 0.08) 0%, transparent 70%);
            color: var(--text-main); 
            line-height: 1.6; 
            padding: 40px 16px; 
        }

        .container { max-width: 1240px; margin: 0 auto; }

        .hero { text-align: center; margin-bottom: 35px; }
        .hero-badge { display: inline-block; padding: 6px 18px; background: rgba(255, 85, 0, 0.12); border: 1px solid #ff5500; color: #ff5500; border-radius: 100px; font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 14px; }
        .hero h1 { font-size: 34px; font-weight: 900; text-transform: uppercase; margin-bottom: 10px; background: linear-gradient(180deg, #FFFFFF 0%, #cbd5e1 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .hero p { color: var(--text-muted); font-size: 15px; max-width: 700px; margin: 0 auto; }

        .game-card { 
            background: linear-gradient(135deg, rgba(255, 85, 0, 0.2) 0%, rgba(20, 22, 28, 0.9) 100%); 
            border: 2px solid #ff5500; 
            border-radius: 20px; 
            padding: 22px 30px; 
            display: flex; 
            align-items: center; 
            justify-content: space-between; 
            gap: 20px; 
            margin-bottom: 45px; 
            box-shadow: 0 0 35px rgba(255, 85, 0, 0.25); 
            backdrop-filter: blur(10px); 
        }
        .game-info h3 { font-size: 20px; color: #fff; margin-bottom: 4px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.5px; }
        .game-info p { color: #cbd5e1; font-size: 14px; }
        .btn-game { background: #ff5500; color: #fff; text-decoration: none; padding: 13px 26px; border-radius: 12px; font-weight: 800; font-size: 14px; text-transform: uppercase; letter-spacing: 0.5px; white-space: nowrap; transition: 0.3s; box-shadow: 0 4px 20px rgba(255, 85, 0, 0.4); display: inline-block; }
        .btn-game:hover { transform: translateY(-3px) scale(1.02); filter: brightness(1.15); }

        .grid-pricing { 
            display: grid; 
            grid-template-columns: repeat(4, 1fr); 
            gap: 22px; 
            margin-bottom: 50px; 
        }

        @media (max-width: 1023px) {
            .grid-pricing { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 480px) {
            body { padding: 20px 10px; }
            .hero h1 { font-size: 24px; }
            .game-card { flex-direction: column; text-align: center; padding: 20px; }
            .card { padding: 20px 14px; }
            .avatar-frame { width: 110px; height: 110px; }
            .price-main { font-size: 26px; }
        }

        .card { 
            background: var(--bg-card); 
            border: 1px solid var(--border-card); 
            border-radius: 24px; 
            padding: 24px 18px; 
            position: relative; 
            transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1); 
            display: flex; 
            flex-direction: column; 
            justify-content: space-between; 
            backdrop-filter: blur(12px);
            overflow: hidden;
        }

        .card-genin:hover { border-color: var(--genin-color); box-shadow: 0 10px 35px var(--genin-glow); transform: translateY(-6px); }
        .card-chunin:hover { border-color: var(--chunin-color); box-shadow: 0 10px 35px var(--chunin-glow); transform: translateY(-6px); }
        .card-jounin:hover { border-color: var(--jounin-color); box-shadow: 0 10px 35px var(--jounin-glow); transform: translateY(-6px); }
        .card-kage:hover { border-color: var(--kage-color); box-shadow: 0 10px 35px var(--kage-glow); transform: translateY(-6px); }

        .card.featured { 
            border: 2px solid var(--jounin-color); 
            background: linear-gradient(180deg, rgba(59, 130, 246, 0.12) 0%, var(--bg-card) 100%); 
            box-shadow: 0 0 25px rgba(59, 130, 246, 0.2);
        }
        .card-tag { 
            position: absolute; 
            top: 0; 
            right: 0; 
            background: var(--jounin-color); 
            color: #fff; 
            font-size: 10px; 
            font-weight: 900; 
            padding: 5px 14px; 
            border-bottom-left-radius: 15px; 
            text-transform: uppercase; 
            letter-spacing: 0.8px; 
            box-shadow: 0 2px 10px rgba(0,0,0,0.3);
        }

        .avatar-container { text-align: center; margin-bottom: 16px; position: relative; }
        .avatar-frame { 
            width: 130px; 
            height: 130px; 
            margin: 0 auto; 
            border-radius: 50%; 
            padding: 4px; 
            background: rgba(255,255,255,0.05); 
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: 0.3s;
            overflow: hidden;
        }

        .card-genin .avatar-frame { border: 2px dashed var(--genin-color); background: rgba(255, 153, 0, 0.08); }
        .card-chunin .avatar-frame { border: 2px dashed var(--chunin-color); background: rgba(34, 197, 94, 0.08); }
        .card-jounin .avatar-frame { border: 2px solid var(--jounin-color); background: rgba(59, 130, 246, 0.1); box-shadow: 0 0 15px var(--jounin-glow); }
        .card-kage .avatar-frame { border: 2px solid var(--kage-color); background: rgba(239, 68, 68, 0.1); box-shadow: 0 0 15px var(--kage-glow); }

        .avatar-img { 
            width: 100%; 
            height: 100%; 
            object-fit: cover; 
            border-radius: 50%;
            transition: transform 0.3s ease;
        }

        /* Zoom hình ảnh từng cấp */
        .card-genin .avatar-img { transform: scale(1.1); }
        .card-chunin .avatar-img { transform: scale(1.2); }
        .card-jounin .avatar-img { transform: scale(1.1); }
        .card-kage .avatar-img { transform: scale(1.2); }

        .card-genin:hover .avatar-img { transform: scale(1.2); }
        .card-chunin:hover .avatar-img { transform: scale(1.3); }
        .card-jounin:hover .avatar-img { transform: scale(1.2); }
        .card-kage:hover .avatar-img { transform: scale(1.3); }

        .rank-emblem {
            position: absolute;
            bottom: -6px;
            right: 50%;
            transform: translateX(50%);
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 13px;
            color: #fff;
            border: 2px solid var(--bg-main);
            box-shadow: 0 2px 8px rgba(0,0,0,0.5);
            z-index: 2;
        }
        .card-genin .rank-emblem { background: var(--genin-color); }
        .card-chunin .rank-emblem { background: var(--chunin-color); }
        .card-jounin .rank-emblem { background: var(--jounin-color); }
        .card-kage .rank-emblem { background: var(--kage-color); }

        .rank-title { font-size: 22px; font-weight: 900; text-align: center; letter-spacing: 0.5px; }
        .card-genin .rank-title { color: var(--genin-color); }
        .card-chunin .rank-title { color: var(--chunin-color); }
        .card-jounin .rank-title { color: var(--jounin-color); }
        .card-kage .rank-title { color: var(--kage-color); }

        .rank-subtitle { font-size: 11px; color: var(--text-muted); text-align: center; text-transform: uppercase; font-weight: 700; margin-bottom: 16px; letter-spacing: 0.5px; }

        .price-box { margin-bottom: 18px; padding-bottom: 14px; border-bottom: 1px solid var(--border-card); text-align: center; }
        .price-main { font-size: 28px; font-weight: 900; color: #fff; }
        .price-main span { font-size: 13px; font-weight: 600; color: var(--text-muted); }
        .price-pack { font-size: 13px; font-weight: 700; margin-top: 2px; }
        .card-genin .price-pack { color: var(--genin-color); }
        .card-chunin .price-pack { color: var(--chunin-color); }
        .card-jounin .price-pack { color: var(--jounin-color); }
        .card-kage .price-pack { color: var(--kage-color); }

        .skill-list { list-style: none; margin-bottom: 20px; }
        .skill-list li { font-size: 13px; color: #cbd5e1; margin-bottom: 8px; position: relative; padding-left: 16px; line-height: 1.4; }
        .skill-list li::before { content: "▸"; position: absolute; left: 0; font-weight: bold; }
        .card-genin .skill-list li::before { color: var(--genin-color); }
        .card-chunin .skill-list li::before { color: var(--chunin-color); }
        .card-jounin .skill-list li::before { color: var(--jounin-color); }
        .card-kage .skill-list li::before { color: var(--kage-color); }

        .btn-card { display: block; text-align: center; padding: 12px; background: rgba(255, 255, 255, 0.05); border: 1px solid var(--border-card); color: #fff; text-decoration: none; border-radius: 12px; font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.5px; transition: 0.25s; }
        .btn-card:hover { background: #fff; color: #000; }
        
        .card-genin .btn-card:hover { background: var(--genin-color); color: #fff; border-color: var(--genin-color); box-shadow: 0 4px 15px var(--genin-glow); }
        .card-chunin .btn-card:hover { background: var(--chunin-color); color: #fff; border-color: var(--chunin-color); box-shadow: 0 4px 15px var(--chunin-glow); }
        .card-jounin .btn-card { background: var(--jounin-color); border-color: var(--jounin-color); box-shadow: 0 4px 15px var(--jounin-glow); }
        .card-jounin .btn-card:hover { background: #2563eb; color: #fff; }
        .card-kage .btn-card:hover { background: var(--kage-color); color: #fff; border-color: var(--kage-color); box-shadow: 0 4px 15px var(--kage-glow); }

        .faq-box { background: var(--bg-card); border-radius: 20px; border: 1px solid var(--border-card); padding: 28px; margin-bottom: 40px; }
        .faq-title { font-size: 18px; font-weight: 900; color: #fff; margin-bottom: 18px; text-transform: uppercase; text-align: center; letter-spacing: 1px; }
        .faq-item { margin-bottom: 14px; }
        .faq-item:last-child { margin-bottom: 0; }
        .faq-q { font-weight: 700; color: #ff5500; font-size: 14px; margin-bottom: 4px; }
        .faq-a { color: var(--text-muted); font-size: 13px; }

        .footer-cta { text-align: center; padding: 35px; background: var(--bg-card); border-radius: 20px; border: 1px solid var(--border-card); }
        .footer-cta h2 { font-size: 22px; margin-bottom: 8px; color: #fff; font-weight: 800; }
        .footer-cta p { color: var(--text-muted); margin-bottom: 20px; font-size: 14px; }