/* Methodology page styles */

h1 { text-align: center; margin-bottom: 0.5rem; }

main h2 {
    border-bottom: 2px solid var(--text-dim);
    padding-bottom: 0.5rem;
    margin-top: 2.5rem;
}
main h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

p { padding: 0.5rem 0; line-height: 1.6; }

/* Intro block */
.meth-intro {
    background: var(--bg-elevated, rgba(128,128,128,0.06));
    border-radius: 8px;
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
}
.meth-intro p { padding: 0; }

/* Data source cards */
.meth-sources {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.8rem;
    margin: 1rem 0 1.5rem;
}
.meth-source-card {
    background: var(--bg-elevated, rgba(128,128,128,0.06));
    border-radius: 8px;
    padding: 0.8rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}
.meth-source-card strong {
    font-size: 0.9rem;
    color: var(--accent, #e87e22);
}
.meth-source-card span {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* Formula steps */
.meth-formula {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 1rem 0 1.5rem;
}
.meth-formula-step {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    background: var(--bg-elevated, rgba(128,128,128,0.06));
    border-radius: 8px;
    padding: 1rem 1.2rem;
}
.meth-step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent, #e87e22);
    color: #fff;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}
.meth-formula-step p { padding: 0.2rem 0; font-size: 0.88rem; }
.meth-formula-step strong { font-size: 0.95rem; }
.meth-code {
    display: inline-block;
    background: rgba(128,128,128,0.12);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.82rem;
    margin-top: 0.3rem;
    color: var(--text-primary);
}

/* Tier legend */
.meth-tier-legend {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.4rem 1rem;
    align-items: center;
    margin: 1rem 0;
    padding: 0.8rem 1rem;
    background: var(--bg-elevated, rgba(128,128,128,0.06));
    border-radius: 8px;
}
.meth-tier {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.meth-tier-core {
    color: var(--accent, #e87e22);
    background: rgba(232, 126, 34, 0.15);
}
.meth-tier-major {
    color: var(--text-primary);
    background: rgba(128, 128, 128, 0.15);
}
.meth-tier-minor {
    color: var(--text-muted);
    background: rgba(128, 128, 128, 0.08);
}
.meth-tier-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Weight tables */
.meth-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.5rem 0 1.5rem;
    font-size: 0.88rem;
}
.meth-table thead th {
    text-align: left;
    padding: 0.5rem 0.8rem;
    border-bottom: 2px solid var(--text-dim);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}
.meth-table tbody td {
    padding: 0.5rem 0.8rem;
    border-bottom: 1px solid rgba(128,128,128,0.12);
}
.meth-td-weight {
    font-weight: 600;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    text-align: center;
    width: 60px;
}

/* Footer note */
.meth-footer {
    margin-top: 2.5rem;
    padding: 1rem 1.5rem;
    background: rgba(128,128,128,0.06);
    border-left: 4px solid var(--text-dim);
    border-radius: 4px;
}
.meth-footer p {
    padding: 0;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Responsive */
@media (max-width: 600px) {
    .meth-sources { grid-template-columns: 1fr; }
    .meth-formula-step { flex-direction: column; gap: 0.5rem; }
    .meth-step-num { min-width: 28px; height: 28px; font-size: 0.75rem; }
    .meth-tier-legend { grid-template-columns: 1fr; gap: 0.2rem; }
    .meth-table { font-size: 0.8rem; }
    .meth-table thead th, .meth-table tbody td { padding: 0.4rem 0.5rem; }
}