/* Zone Analysis - banner (summary + coverage matrix) and per-ZIP drill-downs. */

.za-banner__head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.za-banner__scope { font-weight: 700; font-size: 14px; }
.za-banner__win { font-size: 12px; color: var(--text-secondary); }

.za-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.za-stat { background: var(--bg); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 8px; padding: 10px 12px; }
.za-stat__val { font-size: 20px; font-weight: 700; line-height: 1.1; }
.za-stat__label { font-size: 11px; color: var(--text-secondary); margin-top: 4px; }

/* Coverage matrix (collapsible) */
.za-coverage { margin-top: 14px; }
.za-coverage > summary { cursor: pointer; font-weight: 600; font-size: 13px; color: var(--accent); }
.za-coverage__note { font-size: 11px; color: var(--text-secondary); margin: 8px 0 12px; line-height: 1.5; }
.za-cov-hub { margin-bottom: 16px; }
.za-cov-hub__name { font-weight: 600; font-size: 12px; margin-bottom: 6px; }
.za-cov-table { border-collapse: collapse; font-size: 11px; }
.za-cov-table th, .za-cov-table td { border: 1px solid var(--border); padding: 3px 6px; text-align: center; }
.za-cov-table th { color: var(--text-secondary); font-weight: 600; }
.za-cov-name { text-align: left !important; white-space: nowrap; }
.za-cov-shift { color: var(--text-secondary); white-space: nowrap; }
.za-cov { font-weight: 700; }
.za-cov--p { color: var(--accent); background: color-mix(in srgb, var(--accent) 16%, transparent); }
.za-cov--s { color: var(--success); background: color-mix(in srgb, var(--success) 16%, transparent); }
.za-cov--t { color: var(--text-secondary); }

/* Drill-down */
.za-drill { display: flex; flex-direction: column; gap: 16px; padding: 4px 2px; }
.za-block__title { font-weight: 600; font-size: 13px; margin-bottom: 8px; }
.za-empty { color: var(--text-secondary); font-size: 13px; }

.za-shift-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; max-width: 560px; }
.za-shift { background: var(--bg); border: 1px solid var(--border); border-left: 3px solid var(--border); border-radius: 8px; padding: 10px 12px; }
.za-shift.is-best { border-left-color: var(--success); }
.za-shift.is-worst { border-left-color: var(--error); }
.za-shift__name { font-weight: 600; font-size: 12px; }
.za-shift.is-best .za-shift__name { color: var(--success); }
.za-shift.is-worst .za-shift__name { color: var(--error); }
.za-shift__val { font-size: 18px; font-weight: 700; margin-top: 4px; }
.za-shift__sub { font-size: 11px; color: var(--text-secondary); margin-top: 2px; }

.za-drivers { border-collapse: collapse; font-size: 12px; width: 100%; max-width: 620px; }
.za-drivers th, .za-drivers td { border-bottom: 1px solid var(--border); padding: 6px 10px; text-align: left; }
.za-drivers th { color: var(--text-secondary); font-weight: 600; font-size: 11px; }
.za-rel { font-size: 10px; text-transform: uppercase; letter-spacing: 0.04em; border-radius: 4px; padding: 1px 6px; font-weight: 600; }
.za-rel--primary { color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent); }
.za-rel--secondary { color: var(--success); border: 1px solid color-mix(in srgb, var(--success) 45%, transparent); }
.za-rel--overflow { color: var(--text-secondary); border: 1px solid var(--border); }

@media (max-width: 860px) {
  .za-stats { grid-template-columns: repeat(2, 1fr); }
  .za-shift-grid { grid-template-columns: 1fr; }
}