/* whitepapers.xyz - Memphis Archive */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --electric-blue: #3A3AE8;
    --deep-indigo: #1A1A2E;
    --warm-paper: #F8F0E0;
    --violet: #6A5ACD;
    --white: #FFFFFF;
    --yellow: #F0D040;
    --red: #E85A5A;
    --dark-surface: #2A2A3E;
}

body {
    background: var(--warm-paper);
    color: var(--deep-indigo);
    font-family: 'DM Sans', sans-serif;
    font-size: 1rem;
    line-height: 1.75;
    font-weight: 400;
    overflow-x: hidden;
}

/* Color Blocks */
.color-block {
    width: 100%;
    position: relative;
    overflow: hidden;
    padding: 5rem 2rem;
}
.block-paper { background: var(--warm-paper); }
.block-indigo { background: var(--deep-indigo); }
.block-violet { background: var(--violet); }

/* Geometric Shapes */
.geo-shape { position: absolute; pointer-events: none; }
.geo-circle-1 {
    width: 300px; height: 300px;
    border-radius: 50%;
    background: var(--electric-blue);
    opacity: 0.08;
    top: -50px; right: -80px;
    animation: scaleIn 0.5s ease forwards;
}
.geo-circle-2 {
    width: 250px; height: 250px;
    border-radius: 50%;
    background: var(--red);
    opacity: 0.08;
    bottom: -60px; left: -60px;
    animation: scaleIn 0.5s ease forwards 0.2s;
}
.geo-triangle-1 {
    width: 0; height: 0;
    border-left: 150px solid transparent;
    border-right: 150px solid transparent;
    border-bottom: 260px solid var(--yellow);
    opacity: 0.1;
    top: 20%; left: -80px;
    animation: scaleIn 0.5s ease forwards 0.4s;
}
.geo-triangle-2 {
    width: 0; height: 0;
    border-left: 120px solid transparent;
    border-right: 120px solid transparent;
    border-bottom: 200px solid var(--warm-paper);
    opacity: 0.1;
    top: 10%; right: -40px;
}
.geo-zigzag {
    width: 200px; height: 60px;
    background: repeating-linear-gradient(90deg, var(--yellow) 0, var(--yellow) 20px, transparent 20px, transparent 40px);
    opacity: 0.15;
    top: 15%; right: 5%;
    transform: rotate(-5deg);
}
@keyframes scaleIn {
    from { transform: scale(0); }
    to { transform: scale(1); }
}

/* Reading Column */
.reading-col {
    max-width: 760px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* Typography */
.block-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
}
.dark-text { color: var(--deep-indigo); }
.drop-in { animation: dropIn 0.5s ease forwards; opacity: 0; transform: translateY(-30px); }
@keyframes dropIn { to { opacity: 1; transform: translateY(0); } }
.block-sub {
    font-family: 'DM Sans', sans-serif;
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}
.dark-sub { color: var(--dark-surface); }

/* Category Badges */
.badge-row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.cat-badge {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.7rem;
    padding: 4px 12px;
    border-radius: 14px;
    letter-spacing: 0.04em;
    display: inline-block;
}
.badge-yellow { background: var(--yellow); color: var(--deep-indigo); }
.badge-blue { background: var(--electric-blue); color: var(--white); }
.badge-red { background: var(--red); color: var(--white); }

/* Paper Cards */
.paper-card {
    background: var(--white);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px rgba(26, 26, 46, 0.06);
    transition: transform 0.3s ease;
    opacity: 0;
    transform: translateY(15px);
}
.paper-card.visible { opacity: 1; transform: translateY(0); transition: opacity 0.5s ease, transform 0.5s ease; }
.paper-card:hover { transform: translateY(-2px); }
.light-card { background: rgba(248, 240, 224, 0.15); backdrop-filter: blur(8px); }
.paper-meta {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.7rem;
    color: var(--electric-blue);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.5rem;
}
.light-meta { color: var(--yellow); }
.paper-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--deep-indigo);
    margin-bottom: 0.75rem;
}
.light-title { color: var(--warm-paper); }
.paper-summary {
    font-family: 'DM Sans', sans-serif;
    font-size: 1rem;
    color: var(--dark-surface);
    line-height: 1.75;
    margin-bottom: 0.75rem;
}
.light-summary { color: rgba(248, 240, 224, 0.8); }
.paper-tag {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.7rem;
    color: var(--violet);
    letter-spacing: 0.04em;
}
.light-tag { color: rgba(248, 240, 224, 0.6); }

/* Bubbles Layer */
.bubbles-layer { position: fixed; inset: 0; pointer-events: none; z-index: 3; overflow: hidden; }

/* Footer */
.footer-block { padding: 3rem 2rem; }
.footer-text {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.75rem;
    color: var(--violet);
    letter-spacing: 0.04em;
}

@media (max-width: 768px) { .color-block { padding: 3rem 1.5rem; } }