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

    body {
        font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        background: #ffffff;
        color: #1a1a1a;
        line-height: 1.5;
        -webkit-font-smoothing: antialiased;
    }

    header {
        position: sticky;
        top: 0;
        z-index: 50;
        background: rgba(255, 255, 255, 0.8);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    }

    .header-content {
        max-width: 768px;
        margin: 0 auto;
        padding: 20px 32px;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .logo {
        font-size: 16px;
        font-weight: 600;
        color: #1a1a1a;
        letter-spacing: -0.02em;
    }

    nav {
        display: flex;
        gap: 32px;
    }

    nav a {
        font-size: 14px;
        text-decoration: none;
        color: #737373;
        transition: color 0.2s;
    }

    nav a:hover {
        color: #1a1a1a;
    }

    nav a.active {
        color: #1a1a1a;
        font-weight: 500;
    }

    main {
        max-width: 768px;
        margin: 0 auto;
        padding: 128px 32px 100px;
    }

    .hero {
        margin-bottom: 96px;
        animation: slideUp 0.6s ease-out forwards;
    }

    .hero h1 {
        font-size: 64px;
        font-weight: 600;
        color: #1a1a1a;
        letter-spacing: -0.04em;
        line-height: 1.05;
        margin-bottom: 12px;
    }

    .hero p {
        font-size: 19px;
        color: #737373;
        line-height: 1.5;
        font-weight: 400;
        max-width: 672px;
    }

    .timeline {
        position: relative;
    }

    .update-entry {
        position: relative;
        padding-left: 48px;
        margin-left: 7px;
        padding-bottom: 64px;
        border-left: 1px solid rgba(0, 0, 0, 0.1);
        opacity: 0;
        animation: fadeIn 0.6s ease-out forwards;
        cursor: pointer;
    }

    .update-entry:last-child {
        padding-bottom: 0;
    }

    .update-entry:nth-child(1) { animation-delay: 0ms; }
    .update-entry:nth-child(2) { animation-delay: 100ms; }
    .update-entry:nth-child(3) { animation-delay: 200ms; }
    .update-entry:nth-child(4) { animation-delay: 300ms; }
    .update-entry:nth-child(5) { animation-delay: 400ms; }
    .update-entry:nth-child(6) { animation-delay: 500ms; }
    .update-entry:nth-child(7) { animation-delay: 600ms; }
    .update-entry:nth-child(8) { animation-delay: 700ms; }
    .update-entry:nth-child(9) { animation-delay: 800ms; }
    .update-entry:nth-child(10) { animation-delay: 900ms; }

    .timeline-dot {
        position: absolute;
        left: -7.5px;
        top: 16px;
        width: 15px;
        height: 15px;
        background: #1a1a1a;
        border-radius: 50%;
        transition: all 0.2s ease;
    }

    .update-entry:hover .timeline-dot {
        width: 19px;
        height: 19px;
        left: -9.5px;
        top: 14px;
        box-shadow: 0 0 0 4px rgba(26, 26, 26, 0.15);
    }

    .update-header {
        margin-bottom: 24px;
    }

    .update-header h3 {
        font-size: 32px;
        font-weight: 600;
        color: #1a1a1a;
        letter-spacing: -0.03em;
        line-height: 1;
        margin-bottom: 8px;
    }

    .update-header time {
        font-size: 15px;
        color: #737373;
        font-weight: 400;
    }

    .update-list {
        list-style: none;
    }

    .update-item {
        display: flex;
        gap: 16px;
        align-items: flex-start;
        margin-bottom: 16px;
    }

    .update-item:last-child {
        margin-bottom: 0;
    }

    .update-item a,
    .update-item a:visited {
        color: var(--accent);
        font-weight: 500;
        text-decoration: underline;
        text-underline-offset: 2px;
    }

    .update-item a:hover {
        color: var(--accent-hover);
    }

    .badge {
        display: inline-block;
        padding: 4px 10px;
        font-size: 12px;
        font-weight: 500;
        border-radius: 6px;
        text-transform: capitalize;
        flex-shrink: 0;
        margin-top: 3px;
    }

    .badge.new {
        background: #1a1a1a;
        color: #ffffff;
    }

    .badge.improved {
        background: #f5f5f5;
        color: #1a1a1a;
    }

    .badge.fixed {
        background: #f0f9ff;
        color: #0369a1;
    }


    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translateY(10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    @keyframes slideUp {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    @media (max-width: 768px) {
        .header-content {
            padding: 20px 24px;
        }

        main {
            padding: 96px 24px 96px;
        }

        .hero {
            margin-bottom: 80px;
        }

        .hero h1 {
            font-size: 48px;
        }

        .hero p {
            font-size: 17px;
        }

        .update-header h3 {
            font-size: 28px;
        }

        .update-entry {
            padding-left: 40px;
        }
    }