:root {
    --bg-color: #ffffff;
    --text-primary: #000000;
    --text-secondary: #4a4a4a;
    --accent-color: #333333;
    /* Dark accents for light mode */
    --line-color: #333333;
    --container-width: 600px;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Outfit', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding: 4rem 1rem;
    position: relative;
    /* For gradient positioning */
    overflow-x: hidden;
    /* Prevent horizontal scroll from blur/gradient */
}

/* Subtle bottom gradient glow */
body::after {
    content: '';
    position: fixed;
    bottom: -30vh;
    left: 50%;
    transform: translateX(-50%);
    width: 200vw;
    height: 60vh;
    background: radial-gradient(circle, rgba(255, 0, 0, 0.15) 0%, rgba(255, 255, 0, 0.15) 30%, rgba(128, 0, 128, 0.15) 60%, rgba(255, 255, 255, 0) 70%);
    filter: blur(60px);
    z-index: -1;
    pointer-events: none;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    /* Align text container content to left, but container itself is centered by body flex */
}

header {
    margin-bottom: 3rem;
    width: 100%;
    text-align: center;
    /* Title centered as per common design, or strictly left if user insisted? User said "text centered on page but left justified (so a text container that is centered)". Usually titles are centered in the container or left. I'll stick to left aligned in the container for consistency with "left justified" request. */
    text-align: left;
    padding-left: 2rem;
    /* Align with content */
}

h1 {
    font-weight: 600;
    font-size: 2rem;
    background: #000;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

.roadmap-list {
    position: relative;
    padding-left: 2rem;
    /* border-left: 2px solid var(--line-color); Removed continuous line */
    margin-left: 1rem;
}

.roadmap-item {
    position: relative;
    margin-bottom: 3rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.roadmap-item.is-visible {
    opacity: 1;
    transform: translateY(0);
}

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

/* Dot on the line */
.roadmap-item::before {
    content: '';
    position: absolute;
    left: calc(-2rem - 7px);
    /* Align center of dot (12px) with center of border (2px) which is 2rem+1px away */
    top: 0.4rem;
    width: 12px;
    height: 12px;
    background-color: var(--bg-color);
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.roadmap-item:hover::before {
    background-color: var(--accent-color);
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(100, 108, 255, 0.4);
}

/* Connecting line */
.roadmap-item::after {
    content: '';
    position: absolute;
    left: -2rem;
    /* Nudged right again by 1px (total 2px from theoretical center) based on visual feedback */
    top: 0.4rem;
    /* Reverted to 0.4rem (no top gap) */
    /* Start at dot center vertically roughly */
    bottom: -3.4rem;
    /* Reverted to -3.4rem (no bottom gap) */
    /* Extend to next dot: cover height (100%) + margin (3rem) + next dot offset (0.4rem). Wait, bottom relative to item. If I use top and Height? Height = 100% + 3rem. */
    width: 2px;
    background-color: var(--line-color);
    z-index: -1;
}

/* Hide line for last item */
.roadmap-item:last-child::after {
    display: none;
}

.content {
    padding-left: 1.5rem;
}

h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

p {
    font-size: 1rem;
    color: var(--text-secondary);
}

@media (max-width: 600px) {
    .container {
        width: 100%;
    }

    h1 {
        font-size: 1.75rem;
    }
}