/* ============================================================
   RESEARCH PAGE — research.css
   ============================================================ */

/* PAGE HEADER */
.rs-header {
    padding: calc(var(--nav-h) + 4rem) 0 4rem;
    border-bottom: none;
    background: var(--green-800);
  }
  .rs-h1 {
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 500; color: var(--white);
    line-height: 1.2; letter-spacing: -0.5px;
    margin-bottom: 1.25rem; max-width: 760px;
  }
  .rs-intro {
    font-size: 17px; color: rgba(255,255,255,0.78);
    line-height: 1.75; max-width: 680px;
    margin-bottom: 1.5rem;
  }
  .rs-meta {
    display: flex; align-items: center;
    gap: 10px; flex-wrap: wrap;
  }
  .rs-meta-item { font-size: 13px; color: var(--green-200); }
  .rs-meta-dot {
    width: 3px; height: 3px; border-radius: 50%;
    background: var(--green-400); flex-shrink: 0;
  }
  .rs-header .eyebrow { color: var(--green-100); }
  .rs-header .eyebrow::before { background: var(--green-100); }
  
  /* STATS BAR */
  .rs-stats-bar {
    background: var(--near-black); padding: 2.25rem 0;
  }
  .rs-stats-grid {
    display: flex; align-items: center;
    justify-content: center; flex-wrap: wrap;
  }
  .rs-stat {
    display: flex; flex-direction: column;
    align-items: center; text-align: center;
    padding: 0.5rem 2.5rem;
  }
  .rs-stat-num {
    font-size: 26px; font-weight: 600;
    color: var(--green-100); line-height: 1; margin-bottom: 5px;
  }
  .rs-stat-label {
    font-size: 11px; color: var(--gray-400);
    line-height: 1.4; max-width: 130px;
  }
  .rs-stat-div {
    width: 0.5px; height: 44px;
    background: rgba(255,255,255,0.12); flex-shrink: 0;
  }
  
  /* CONTENT GRID */
  .rs-content-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 5rem; align-items: start;
  }
  .rs-body {
    font-size: 16px; color: var(--gray-800);
    line-height: 1.75; margin-bottom: 1.25rem;
  }
  
  /* Dimensions */
  .rs-dimensions {
    display: flex; flex-direction: column;
    gap: 1.5rem; margin-top: 2rem;
  }
  .rs-dimension {
    display: flex; gap: 1.25rem; align-items: flex-start;
  }
  .rs-dimension-num {
    font-size: 11px; font-weight: 600;
    color: var(--green-600);
    background: var(--green-50);
    border: 0.5px solid var(--green-100);
    border-radius: var(--radius-md);
    padding: 5px 9px; flex-shrink: 0;
    letter-spacing: 0.05em; margin-top: 2px;
  }
  .rs-dimension-title {
    font-size: 15px; font-weight: 500;
    color: var(--near-black); margin-bottom: 4px;
  }
  .rs-dimension-desc {
    font-size: 14px; color: var(--gray-800); line-height: 1.6;
  }
  
  /* Finding cards */
  .rs-finding-card {
    background: var(--off-white);
    border: 0.5px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
  }
  .rs-finding-label {
    font-size: 11px; font-weight: 500;
    letter-spacing: 0.08em; text-transform: uppercase;
    color: var(--green-600); margin-bottom: 1rem;
  }
  .rs-finding-table {
    display: flex; flex-direction: column; gap: 2px;
    margin-bottom: 0.75rem;
  }
  .rs-finding-row {
    display: flex; justify-content: space-between;
    font-size: 13px; padding: 8px 10px;
    border-radius: var(--radius-sm);
    color: var(--gray-800);
  }
  .rs-finding-row--head {
    font-size: 11px; font-weight: 500;
    color: var(--gray-600); padding: 4px 10px;
  }
  .rs-finding-row--good {
    background: var(--green-50);
    color: var(--green-800); font-weight: 500;
    border: 0.5px solid var(--green-100);
  }
  .rs-finding-note {
    font-size: 11px; color: var(--gray-600);
    font-style: italic;
  }
  .rs-finding-quote {
    font-size: 14px; color: var(--near-black);
    line-height: 1.65; font-style: italic;
    border-left: 3px solid var(--green-600);
    padding-left: 1rem; margin: 0;
  }
  
  /* DOWNLOADS */
  .rs-downloads-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
  }
  .rs-download-card {
    display: flex; flex-direction: column;
    align-items: center; text-align: center;
    gap: 8px;
    background: var(--white);
    border: 0.5px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 1.75rem 1rem;
    color: var(--near-black);
    transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
    text-decoration: none;
  }
  .rs-download-card:hover {
    transform: translateY(-3px);
    border-color: var(--green-100);
    box-shadow: var(--shadow-md);
  }
  .rs-download-flag { font-size: 2rem; line-height: 1; }
  .rs-download-lang {
    font-size: 15px; font-weight: 500;
    color: var(--near-black);
  }
  .rs-download-label {
    font-size: 11px; color: var(--gray-600);
    font-family: monospace;
  }
  .rs-download-icon {
    margin-top: 4px;
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--green-50);
    border: 0.5px solid var(--green-100);
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; color: var(--green-600);
    font-weight: 500;
  }
  .rs-download-card:hover .rs-download-icon {
    background: var(--green-600); color: var(--white);
    border-color: var(--green-600);
  }
  
  /* CERT CARDS */
  .rs-certs-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 5rem; align-items: start;
  }
  .rs-cert-cards { display: flex; flex-direction: column; gap: 1rem; }
  .rs-cert-card {
    display: flex; align-items: flex-start; gap: 1.25rem;
    background: var(--white);
    border: 0.5px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
  }
  .rs-cert-card-icon { font-size: 1.5rem; flex-shrink: 0; margin-top: 2px; }
  .rs-cert-card-title {
    font-size: 15px; font-weight: 500;
    color: var(--near-black); margin-bottom: 4px;
  }
  .rs-cert-card-body {
    font-size: 13px; color: var(--gray-800); line-height: 1.6;
  }
  .rs-cert-card-btn {
    flex-shrink: 0; margin-left: auto;
    font-size: 13px; font-weight: 500;
    color: var(--green-600); white-space: nowrap;
    padding: 8px 16px;
    border: 1.5px solid var(--green-600);
    border-radius: var(--radius-pill);
    transition: background 0.15s, color 0.15s;
    align-self: center;
  }
  .rs-cert-card-btn:hover {
    background: var(--green-600); color: var(--white);
  }
  
  /* SOURCES */
  .rs-sources { max-width: 760px; }
  .rs-sources-title {
    font-size: 20px; font-weight: 500;
    color: var(--near-black); margin-bottom: 1.5rem;
  }
  .rs-sources-list {
    display: flex; flex-direction: column; gap: 12px;
    list-style: none;
  }
  .rs-sources-list li {
    font-size: 13px; line-height: 1.5;
    padding-left: 1rem;
    border-left: 2px solid var(--gray-200);
  }
  .rs-sources-list a {
    color: var(--green-600);
    word-break: break-word;
  }
  .rs-sources-list a:hover { text-decoration: underline; }
  
  /* RESPONSIVE */
  @media (max-width: 1024px) {
    .rs-content-grid { grid-template-columns: 1fr; gap: 3rem; }
    .rs-certs-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .rs-downloads-grid { grid-template-columns: repeat(3, 1fr); }
  }
  @media (max-width: 768px) {
    .rs-downloads-grid { grid-template-columns: repeat(2, 1fr); }
    .rs-stats-grid { justify-content: flex-start; }
    .rs-stat { width: 50%; padding: 0.75rem 1rem; }
    .rs-stat-div { display: none; }
    .rs-cert-card { flex-direction: column; }
    .rs-cert-card-btn { margin-left: 0; }
  }
  @media (max-width: 480px) {
    .rs-downloads-grid { grid-template-columns: 1fr 1fr; }
    .rs-stat { width: 100%; }
  }