/* rollup.quest - Evolved Minimal Blockchain Education */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --proof-white: #FAFAF7;
    --warm-white: #F0EDE6;
    --soft-border: #E0DCD4;
    --deep-navy: #2C3E50;
    --slate: #7F8C8D;
    --ink-dark: #1A1A1E;
    --rollup-green: #27AE60;
    --warning-amber: #F39C12;
}
body {
    background: var(--proof-white);
    color: var(--ink-dark);
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    overflow-x: hidden;
}

/* Contour Background */
#contour-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.04;
    background:
        repeating-linear-gradient(0deg, transparent, transparent 79px, var(--slate) 80px),
        repeating-linear-gradient(90deg, transparent, transparent 79px, var(--slate) 80px);
}

/* Hero */
#hero {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 5rem 2rem 3rem;
}
.hero-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 700;
    color: var(--ink-dark);
}
.hero-sub {
    font-size: 1rem;
    color: var(--slate);
    margin-top: 0.5rem;
}
.compression-funnel {
    display: block;
    max-width: 400px;
    margin: 2rem auto;
}
.tx-dot {
    animation: floatIn 2s ease-in-out infinite alternate;
}
.tx-dot:nth-child(2) { animation-delay: 0.3s; }
.tx-dot:nth-child(3) { animation-delay: 0.6s; }
.tx-dot:nth-child(4) { animation-delay: 0.1s; }
.tx-dot:nth-child(5) { animation-delay: 0.5s; }
.tx-dot:nth-child(6) { animation-delay: 0.8s; }
.tx-dot:nth-child(7) { animation-delay: 0.4s; }
@keyframes floatIn { 0% { opacity: 0.2; } 100% { opacity: 0.6; } }

/* Checkpoints */
.checkpoints {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}
.checkpoint {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--soft-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--slate);
}
.checkpoint.filled {
    background: var(--rollup-green);
    border-color: var(--rollup-green);
    color: white;
}

/* Content */
#content {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
}

/* Z-Pattern Sections */
.z-section {
    display: flex;
    gap: 2rem;
    align-items: center;
    margin: 4rem 0;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.z-section.visible {
    opacity: 1;
    transform: translateY(0);
}
.left-heavy .z-text { flex: 3; }
.left-heavy .z-visual { flex: 2; }
.right-heavy .z-text { flex: 3; }
.right-heavy .z-visual { flex: 2; }

.z-text {}
.section-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--deep-navy);
    margin-bottom: 1rem;
}
.section-body {
    font-size: 1rem;
    line-height: 1.75;
    color: var(--slate);
}
.tech-label {
    display: inline-block;
    margin-top: 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--rollup-green);
    opacity: 0.6;
}

/* Data Block */
.data-block {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    padding: 2rem;
    text-align: center;
    background: var(--warm-white);
    border: 1px solid var(--soft-border);
    border-radius: 8px;
    color: var(--deep-navy);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.data-block:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}
.data-block.accent { border-color: var(--rollup-green); color: var(--rollup-green); }
.data-block.quest { border-color: var(--warning-amber); color: var(--warning-amber); }

/* Footer */
#footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 4rem 2rem;
    border-top: 1px solid var(--soft-border);
}
.footer-text {
    font-size: 0.8rem;
    color: var(--slate);
    opacity: 0.4;
}

@media (max-width: 700px) {
    .z-section { flex-direction: column; }
    .right-heavy { flex-direction: column-reverse; }
}