:root {
                --bg-midnight: #0b1121;
                --bg-card: #111b31;
                --bg-card-soft: #16223d;
                --accent-red: #ef4444;
                --accent-red-strong: #dc2626;
                --text-head: #f8fafc;
                --text-body: #9fb0cb;
                --text-muted: #7f90ae;
                --max-width: 1220px;
            }

            * {
                box-sizing: border-box;
            }

            body {
                margin: 0;
                padding: 0;
                font-family: 'Inter', sans-serif;
                background:
                    radial-gradient(
                        1100px 540px at 12% -10%,
                        rgba(239, 68, 68, 0.18),
                        transparent 60%
                    ),
                    radial-gradient(
                        950px 500px at 95% -20%,
                        rgba(56, 189, 248, 0.12),
                        transparent 58%
                    ),
                    var(--bg-midnight);
                color: var(--text-body);
                line-height: 1.6;
            }

            h1,
            h2,
            h3 {
                color: var(--text-head);
                margin-top: 0;
                line-height: 1.15;
            }

            a {
                text-decoration: none;
            }

            .container {
                width: min(92%, var(--max-width));
                margin: 0 auto;
            }

            header {
                padding: 36px 0 16px;
            }

            .back-btn {
                display: inline-flex;
                align-items: center;
                color: var(--text-head);
                text-transform: uppercase;
                font-size: 0.85rem;
                letter-spacing: 1px;
                font-weight: 700;
                transition: color 0.25s ease;
            }

            .back-btn::before {
                content: '<';
                margin-right: 10px;
                font-size: 1rem;
            }

            .back-btn:hover {
                color: var(--accent-red);
            }

            .hero {
                text-align: center;
                padding: 26px 0 46px;
            }

            .hero h1 {
                font-size: clamp(2rem, 3.7vw, 3.4rem);
                text-transform: uppercase;
                letter-spacing: 0.8px;
                margin-bottom: 16px;
            }

            .hero p {
                max-width: 860px;
                margin: 0 auto;
                font-size: clamp(1.02rem, 1.7vw, 1.2rem);
                color: #c9d4e8;
            }

            .pricing-grid {
                display: grid;
                grid-template-columns: repeat(3, minmax(0, 1fr));
                gap: 24px;
                align-items: stretch;
                margin-bottom: 30px;
            }

            .card {
                position: relative;
                background: linear-gradient(180deg, rgba(22, 34, 61, 0.95), rgba(15, 24, 43, 0.95));
                border: 1px solid rgba(255, 255, 255, 0.1);
                border-radius: 16px;
                padding: 28px 24px;
                display: flex;
                flex-direction: column;
                min-height: 100%;
            }

            .card h2 {
                font-size: 1.26rem;
                margin-bottom: 8px;
            }

            .card .sub {
                color: #d7e2f5;
                font-weight: 600;
                margin-bottom: 14px;
            }

            .card p {
                margin-top: 0;
                margin-bottom: 14px;
                color: var(--text-body);
            }

            .list-title {
                color: #cfdcf3;
                font-size: 0.92rem;
                text-transform: uppercase;
                letter-spacing: 0.8px;
                margin-bottom: 10px;
                font-weight: 700;
            }

            .feature-list {
                list-style: none;
                margin: 0;
                padding: 0;
                display: grid;
                gap: 10px;
            }

            .feature-list li {
                position: relative;
                padding-left: 18px;
                color: #d5e0f4;
            }

            .feature-list li::before {
                content: '\2022';
                position: absolute;
                left: 0;
                top: 0;
                color: var(--accent-red);
                font-weight: 900;
            }

            .price {
                margin-top: auto;
                padding-top: 18px;
                font-size: 1.35rem;
                font-weight: 800;
                color: var(--text-head);
            }

            .price small {
                display: block;
                margin-top: 4px;
                font-size: 0.86rem;
                font-weight: 500;
                color: var(--text-muted);
            }

            .card.best {
                transform: translateY(-6px);
                border-color: rgba(239, 68, 68, 0.65);
                box-shadow: 0 20px 38px rgba(0, 0, 0, 0.32);
                background: linear-gradient(180deg, rgba(34, 42, 70, 0.97), rgba(18, 24, 45, 0.97));
            }

            .badge {
                position: absolute;
                top: -12px;
                right: 18px;
                background: linear-gradient(120deg, var(--accent-red), var(--accent-red-strong));
                color: #fff;
                font-size: 0.74rem;
                font-weight: 800;
                letter-spacing: 0.8px;
                text-transform: uppercase;
                padding: 6px 10px;
                border-radius: 999px;
            }

            .notice {
                margin: 4px 0 34px;
                background: rgba(6, 13, 27, 0.72);
                border: 1px solid rgba(255, 255, 255, 0.08);
                border-radius: 12px;
                padding: 18px 18px 16px;
            }

            .notice h3 {
                font-size: 1rem;
                margin-bottom: 8px;
            }

            .notice p {
                margin: 0 0 8px;
                color: #c7d4ea;
                font-size: 0.95rem;
            }

            .notice p:last-child {
                margin-bottom: 0;
            }

            .cta {
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                margin-top: 16px;
                padding: 38px 0 70px;
                text-align: center;
            }

            .cta h2 {
                font-size: clamp(1.65rem, 3vw, 2.3rem);
                margin-bottom: 10px;
            }

            .cta p {
                max-width: 820px;
                margin: 0 auto 24px;
                color: #c7d4ea;
            }

            .cta-button {
                display: inline-block;
                padding: 14px 30px;
                border-radius: 10px;
                background: var(--accent-red);
                color: #fff;
                font-weight: 800;
                letter-spacing: 0.3px;
                border: 1px solid var(--accent-red);
                transition:
                    transform 0.22s ease,
                    box-shadow 0.22s ease,
                    background 0.22s ease;
            }

            .cta-button:hover {
                transform: translateY(-2px);
                box-shadow: 0 10px 24px rgba(239, 68, 68, 0.35);
                background: var(--accent-red-strong);
            }

            footer {
                padding: 26px 0 38px;
                text-align: center;
                color: #7688a8;
                font-size: 0.85rem;
            }

            @media (max-width: 1060px) {
                .pricing-grid {
                    grid-template-columns: 1fr;
                    gap: 16px;
                }

                .card.best {
                    transform: none;
                }

                .badge {
                    top: 14px;
                    right: 14px;
                }
            }