@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,600;9..144,700&family=Sora:wght@300;400;500;600;700&display=swap');

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

        :root {
            --ink-900: #0f141a;
            --ink-800: #1a222b;
            --ink-700: #2a3440;
            --mist-100: #f4f1ea;
            --mist-200: #efe7da;
            --mist-300: #e6dccb;
            --brass-500: #c5a247;
            --brass-600: #b48f36;
            --sea-700: #0f3a44;
            --sea-600: #1e4d57;
            --white: #ffffff;
            --text-color: #1e2328;
            --text-light: #5a6570;
            --shadow-soft: 0 12px 30px rgba(15, 20, 26, 0.12);
            --shadow-strong: 0 18px 45px rgba(15, 20, 26, 0.18);
        }

        body {
            font-family: 'Sora', 'Helvetica Neue', sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background: radial-gradient(circle at top left, rgba(197, 162, 71, 0.18), transparent 45%),
                        linear-gradient(135deg, #f9f6f0 0%, #f1e8db 35%, #ffffff 100%);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Navigation */
        nav {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(15, 20, 26, 0.08);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--ink-900);
            text-decoration: none;
            font-family: 'Fraunces', 'Times New Roman', serif;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--sea-700), var(--ink-800));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brass-500);
            font-size: 24px;
            box-shadow: inset 0 0 0 1px rgba(255,255,255,0.2);
        }

        .nav-links {
            display: flex;
            gap: 30px;
            list-style: none;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--ink-700);
            font-weight: 600;
            transition: color 0.3s, opacity 0.3s;
        }

        .nav-links a:hover {
            color: var(--sea-700);
            opacity: 0.85;
        }

        /* Hero Section */
        .hero {
            position: relative;
            overflow: hidden;
            color: var(--white);
            padding: 150px 20px 90px;
            background: radial-gradient(circle at 15% 20%, rgba(197, 162, 71, 0.35), transparent 55%),
                        linear-gradient(135deg, #0c1f26 0%, #0f3a44 45%, #1b262d 100%);
        }

        .hero::before,
        .hero::after {
            content: "";
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(197, 162, 71, 0.35), transparent 70%);
            filter: blur(8px);
            opacity: 0.7;
            z-index: 0;
        }

        .hero::before {
            top: -180px;
            right: -120px;
        }

        .hero::after {
            bottom: -220px;
            left: -140px;
        }

        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .hero h1 {
            font-size: 3.1rem;
            margin-bottom: 20px;
            font-weight: 700;
            font-family: 'Fraunces', 'Times New Roman', serif;
            letter-spacing: 0.5px;
        }

        .hero p {
            font-size: 1.25rem;
            margin-bottom: 30px;
            opacity: 0.9;
            line-height: 1.8;
        }

        .hero-clarifier {
            margin: -8px auto 24px;
            max-width: 760px;
            font-size: 0.98rem;
            opacity: 0.85;
        }

        .hero-highlight {
            color: var(--brass-500);
        }

        .cta-button {
            display: inline-block;
            background: linear-gradient(135deg, var(--brass-500), var(--brass-600));
            color: var(--ink-900);
            padding: 16px 40px;
            border-radius: 14px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 12px 30px rgba(197, 162, 71, 0.35);
        }

        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 16px 35px rgba(197, 162, 71, 0.45);
        }

        .hero-download-info {
            margin-top: 20px;
            font-size: 0.9rem;
            opacity: 0.8;
        }

        .hero-notice {
            margin: 28px auto 0;
            max-width: 720px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.22);
            padding: 16px 18px;
            border-radius: 16px;
            font-size: 0.95rem;
            line-height: 1.7;
            box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05);
        }

        .hero-notice strong {
            color: var(--brass-500);
        }

        /* Features Section */
        .features {
            padding: 90px 20px;
            background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(241,232,219,0.7) 100%);
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 2.25rem;
            color: var(--ink-900);
            margin-bottom: 15px;
            font-family: 'Fraunces', 'Times New Roman', serif;
        }

        .section-title p {
            color: var(--text-light);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            max-width: 1200px;
            margin: 0 auto;
            align-items: start;
        }

        .feature-card {
            background: rgba(255, 255, 255, 0.9);
            padding: 32px;
            border-radius: 18px;
            border: 1px solid rgba(15, 20, 26, 0.08);
            box-shadow: var(--shadow-soft);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            position: relative;
            overflow: hidden;
            height: fit-content;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-strong);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, rgba(15, 58, 68, 0.12), rgba(197, 162, 71, 0.2));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 1.25rem;
            color: var(--ink-900);
            margin-bottom: 12px;
        }

        .feature-card p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .feature-card-plan {
            grid-column: span 2;
            background: linear-gradient(135deg, rgba(15, 58, 68, 0.08), rgba(197, 162, 71, 0.12) 60%, rgba(255, 255, 255, 0.98));
            border: 1px solid rgba(15, 58, 68, 0.18);
            box-shadow: var(--shadow-strong);
        }

        .feature-card-plan .feature-icon {
            background: linear-gradient(135deg, rgba(15, 58, 68, 0.18), rgba(197, 162, 71, 0.3));
        }

        .feature-card-shot {
            margin-top: 20px;
            aspect-ratio: 16 / 9;
            max-height: 280px;
            border-radius: 14px;
            border: 1px solid rgba(15, 20, 26, 0.1);
            overflow: hidden;
            box-shadow: 0 10px 28px rgba(15, 20, 26, 0.16);
            background: rgba(255, 255, 255, 0.75);
        }

        .feature-card-shot img {
            display: block;
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: top center;
        }

        /* Repertoire Loop */
        .repertoire-loop {
            padding: 70px 20px;
            background: linear-gradient(180deg, rgba(15, 58, 68, 0.06) 0%, rgba(255, 255, 255, 0.95) 100%);
        }

        .loop-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 16px;
            max-width: 1080px;
            margin: 0 auto;
        }

        .loop-step {
            background: rgba(255, 255, 255, 0.95);
            border: 1px solid rgba(15, 20, 26, 0.08);
            border-radius: 14px;
            padding: 16px 18px;
            color: var(--ink-800);
            font-size: 0.95rem;
            line-height: 1.5;
            box-shadow: var(--shadow-soft);
        }

        .loop-step span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            margin-right: 10px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--sea-700), var(--ink-800));
            color: var(--brass-500);
            font-weight: 700;
            font-size: 0.9rem;
        }

        /* Screenshots Section */
        .screenshots {
            padding: 90px 20px;
            background: linear-gradient(180deg, #ffffff 0%, #f4f1ea 100%);
        }

        .screenshot-container {
            max-width: 1000px;
            margin: 0 auto;
            text-align: center;
        }

        .screenshot-wrapper {
            background: linear-gradient(135deg, rgba(15, 58, 68, 0.08), rgba(197, 162, 71, 0.08));
            border-radius: 22px;
            padding: 22px;
            box-shadow: var(--shadow-strong);
            border: 1px solid rgba(15, 20, 26, 0.08);
        }

        .screenshot-wrapper img {
            width: 100%;
            height: auto;
            border-radius: 8px;
        }

        .screenshot-caption {
            margin-top: 15px;
            color: var(--text-light);
            font-size: 0.9rem;
        }

        .plan-mode-note {
            margin: 14px auto 0;
            max-width: 820px;
            color: var(--ink-700);
            font-size: 0.95rem;
            line-height: 1.75;
        }

        /* System Requirements */
        .requirements {
            padding: 90px 20px;
            background: linear-gradient(180deg, rgba(241,232,219,0.7) 0%, #ffffff 100%);
        }

        .requirements-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            max-width: 900px;
            margin: 0 auto;
        }

        .requirement-card {
            background: var(--white);
            padding: 25px;
            border-radius: 18px;
            text-align: center;
            box-shadow: var(--shadow-soft);
            border: 1px solid rgba(15, 20, 26, 0.08);
        }

        .requirement-card h4 {
            color: var(--ink-900);
            margin-bottom: 10px;
            font-size: 1.1rem;
        }

        .requirement-card p {
            color: var(--text-light);
            font-size: 0.95rem;
        }

        .requirement-icon {
            font-size: 36px;
            margin-bottom: 15px;
        }

        /* Download Section */
        .download {
            padding: 90px 20px;
            background: linear-gradient(135deg, #0c1f26 0%, #143942 45%, #0f141a 100%);
            color: var(--white);
            text-align: center;
        }

        .download h2 {
            font-size: 2rem;
            margin-bottom: 20px;
        }

        .download p {
            opacity: 0.9;
            margin-bottom: 30px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .download-button-large {
            display: inline-block;
            background: linear-gradient(135deg, var(--brass-500), var(--brass-600));
            color: var(--ink-900);
            padding: 20px 50px;
            border-radius: 16px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            box-shadow: 0 14px 35px rgba(197, 162, 71, 0.35);
        }

        .download-button-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 25px rgba(201, 162, 39, 0.5);
        }

        .download-info {
            margin-top: 25px;
            font-size: 0.9rem;
            opacity: 0.8;
        }

        .download-info a {
            color: var(--brass-500);
            text-decoration: none;
        }

        .download-warning {
            margin-top: 20px;
            padding: 16px 18px;
            border-radius: 16px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.16);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .download-warning strong {
            color: var(--brass-500);
        }

        .download-trust {
            margin-top: 16px;
            padding: 14px 16px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 14px;
            background: rgba(255, 255, 255, 0.06);
            text-align: left;
        }

        .download-trust p {
            margin: 6px 0;
            max-width: none;
            font-size: 0.88rem;
            opacity: 0.95;
        }

        /* User Guide Link */
        .user-guide {
            padding: 70px 20px;
            background: linear-gradient(180deg, #ffffff 0%, #f4f1ea 100%);
            text-align: center;
        }

        .user-guide h3 {
            font-size: 1.5rem;
            color: var(--ink-900);
            margin-bottom: 15px;
            font-family: 'Fraunces', 'Times New Roman', serif;
        }

        .user-guide p {
            color: var(--text-light);
            margin-bottom: 25px;
        }

        .user-guide-link {
            display: inline-block;
            background: var(--sea-700);
            color: var(--white);
            padding: 12px 30px;
            border-radius: 14px;
            text-decoration: none;
            font-weight: 500;
            transition: background 0.3s;
        }

        .user-guide-link:hover {
            background: var(--sea-600);
        }

        /* Footer */
        footer {
            background: var(--ink-900);
            color: var(--white);
            padding: 40px 20px;
            text-align: center;
        }

        .footer-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .footer-logo {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 15px;
            font-family: 'Fraunces', 'Times New Roman', serif;
        }

        .footer-links {
            margin: 20px 0;
        }

        .footer-links a {
            color: var(--brass-500);
            text-decoration: none;
            margin: 0 15px;
        }

        .footer-links a:hover {
            text-decoration: underline;
        }

        .footer-copyright {
            font-size: 0.85rem;
            opacity: 0.7;
            line-height: 1.8;
        }

        .trademark-notice {
            margin-top: 15px;
            padding-top: 15px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.8rem;
            opacity: 0.6;
        }

        .fade-up {
            animation: fadeUp 0.8s ease forwards;
            opacity: 0;
            transform: translateY(12px);
        }

        .fade-up.delay-1 { animation-delay: 0.15s; }
        .fade-up.delay-2 { animation-delay: 0.3s; }
        .fade-up.delay-3 { animation-delay: 0.45s; }

        /* Rules Pages */
        .subpage-main {
            padding-top: 74px;
        }

        .sub-hero {
            position: relative;
            overflow: hidden;
            color: var(--white);
            padding: 110px 20px 70px;
            background: radial-gradient(circle at 85% 18%, rgba(197, 162, 71, 0.3), transparent 55%),
                        linear-gradient(135deg, #102a33 0%, #154651 50%, #132229 100%);
        }

        .sub-hero-content {
            max-width: 980px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .sub-hero h1 {
            font-size: 2.6rem;
            margin-bottom: 16px;
            font-family: 'Fraunces', 'Times New Roman', serif;
            letter-spacing: 0.4px;
        }

        .sub-hero p {
            max-width: 760px;
            margin: 0 auto 20px;
            font-size: 1.06rem;
            opacity: 0.92;
            line-height: 1.75;
        }

        .sub-hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 14px;
        }

        .cta-button-ghost {
            display: inline-block;
            color: var(--white);
            border: 1px solid rgba(255, 255, 255, 0.38);
            background: rgba(255, 255, 255, 0.08);
            padding: 12px 22px;
            border-radius: 14px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.25s ease;
        }

        .cta-button-ghost:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.55);
        }

        .rules-link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 16px;
            max-width: 980px;
            margin: 0 auto;
        }

        .rules-link-card {
            display: block;
            background: rgba(255, 255, 255, 0.92);
            border: 1px solid rgba(15, 20, 26, 0.1);
            border-radius: 16px;
            padding: 18px;
            color: var(--text-color);
            text-decoration: none;
            box-shadow: var(--shadow-soft);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .rules-link-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-strong);
        }

        .rules-link-card h4 {
            margin-bottom: 8px;
            color: var(--ink-900);
            font-size: 1.05rem;
        }

        .rules-link-card p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.6;
        }

        .rules-meta {
            max-width: 980px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 14px;
        }

        .rules-meta-item {
            border: 1px solid rgba(15, 20, 26, 0.09);
            border-radius: 14px;
            background: rgba(255, 255, 255, 0.9);
            padding: 14px 16px;
            text-align: center;
            box-shadow: var(--shadow-soft);
        }

        .rules-meta-item strong {
            display: block;
            color: var(--ink-900);
            font-size: 0.95rem;
            margin-bottom: 4px;
        }

        .rules-meta-item span {
            color: var(--text-light);
            font-size: 0.85rem;
        }

        .pills {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            margin-top: 14px;
        }

        .pill {
            display: inline-block;
            background: rgba(15, 58, 68, 0.08);
            border: 1px solid rgba(15, 58, 68, 0.18);
            color: var(--ink-700);
            padding: 6px 11px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 600;
        }

        @keyframes fadeUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.1rem;
            }

            .hero p {
                font-size: 1rem;
            }

            .nav-links {
                display: none;
            }

            .section-title h2 {
                font-size: 1.75rem;
            }

            .features-grid {
                grid-template-columns: 1fr;
            }

            .feature-card-plan {
                grid-column: span 1;
            }

            .feature-card-shot {
                max-height: 220px;
            }

            .loop-step {
                font-size: 0.92rem;
            }

            .cta-button {
                padding: 14px 30px;
                font-size: 1rem;
            }

            .sub-hero h1 {
                font-size: 2rem;
            }

            .sub-hero p {
                font-size: 0.98rem;
            }
        }