/* doi-ve.css - "Đổi Vé" tab (rules for claiming a prize) + the link to it
   on the Dò vé tab. Everything is scoped to .dv-* / #doive-panel. */

#doive-panel {
  max-width: 900px;
}

/* ---------- Contact ---------- */
.dv-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 20px;
  padding: 18px 20px;
  border-radius: 20px;
  background: linear-gradient(135deg, #8f1720 0%, #c9282e 55%, #e94b3e 100%);
  color: #fff;
  box-shadow: 0 14px 34px rgba(143, 23, 32, .18);
}
.dv-contact h3 {
  margin: 0;
  font-size: 18px;
}
.dv-contact p {
  margin: 4px 0 0;
  font-size: 13px;
  opacity: .9;
}
.dv-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.dv-call,
.dv-zalo {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 8px 16px;
  border-radius: 14px;
  text-decoration: none;
}
.dv-call {
  background: #fff;
  color: var(--red-deep);
}
.dv-zalo {
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .45);
  color: #fff;
}
.dv-call svg,
.dv-zalo svg {
  width: 22px;
  height: 22px;
  flex: none;
}
.dv-call span,
.dv-zalo span {
  display: grid;
  line-height: 1.2;
}
.dv-call small,
.dv-zalo small {
  font-size: 11px;
  font-weight: 600;
  opacity: .8;
}
.dv-call strong {
  font: 700 18px "Space Mono", monospace;
}
.dv-zalo strong {
  font-size: 14px;
}

/* ---------- Cards ---------- */
.dv-card {
  margin-top: 16px;
  padding: 18px 20px;
  border-radius: 20px;
  background: #fff;
  border: 1px solid var(--panel-edge);
  box-shadow: var(--shadow-sm);
  font-size: 14px;
  line-height: 1.6;
}
.dv-card h3 {
  margin: 0;
  font-size: 17px;
}
.dv-sub {
  margin: 4px 0 14px;
  font-size: 13px;
  color: var(--muted);
}
.dv-card p {
  margin: 8px 0 0;
}
.dv-card ul {
  margin: 10px 0 0;
  padding-left: 20px;
}
.dv-card li + li {
  margin-top: 6px;
}

/* Collapsible sections */
.dv-sections details > summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.dv-sections details > summary::-webkit-details-marker {
  display: none;
}
.dv-sections details > summary::after {
  content: "+";
  flex: none;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #faf6f1;
  color: var(--red);
  font-size: 18px;
  font-weight: 700;
}
.dv-sections details[open] > summary::after {
  content: "−";
}
.dv-sections details > summary:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 4px;
  border-radius: 6px;
}

/* ✓ / ✗ checklist */
.dv-card .dv-check {
  list-style: none;
  padding-left: 0;
}
.dv-check li {
  position: relative;
  padding-left: 26px;
}
.dv-check li::before {
  position: absolute;
  left: 0;
  width: 20px;
  text-align: center;
  font-weight: 800;
}
.dv-check li.ok::before {
  content: "✓";
  color: var(--green);
}
.dv-check li.no::before {
  content: "✗";
  color: var(--red);
}

.dv-example {
  padding: 10px 12px;
  border-radius: 10px;
  background: #faf6f1;
  font-size: 13px;
}
.dv-legal {
  font-size: 13px;
  color: var(--muted);
}

/* ---------- Prize tables ---------- */
.dv-prize-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.dv-prize-block h4 {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--red-deep);
}
.dv-prize-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.dv-prize-table th,
.dv-prize-table td {
  padding: 7px 6px;
  border-top: 1px solid #f1e8df;
  vertical-align: top;
  text-align: right;
}
.dv-prize-table th:first-child {
  text-align: left;
}
.dv-prize-table thead th {
  border-top: 0;
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.dv-prize-table tbody th {
  font-weight: 600;
  white-space: nowrap;
}
.dv-prize-table td {
  font-family: "Space Mono", monospace;
  white-space: nowrap;
}
.dv-prize-table td strong {
  display: block;
}
.dv-prize-table td small {
  display: block;
  font-family: "Be Vietnam Pro", sans-serif;
  font-size: 11px;
  color: var(--muted);
}
.dv-prize-table tr.dv-db th,
.dv-prize-table tr.dv-db td {
  background: #fdf0ee;
  color: var(--red-deep);
}
.dv-prize-table tr.dv-extra th {
  font-weight: 500;
  font-style: italic;
  color: var(--muted);
}

/* ---------- Link on the Dò vé tab ---------- */
.dv-link {
  margin-top: 14px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--red);
  font: 700 14px "Be Vietnam Pro", sans-serif;
  text-align: left;
  cursor: pointer;
}
.dv-link:hover {
  text-decoration: underline;
}

@media (max-width: 760px) {
  .dv-prize-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .dv-contact {
    padding: 16px;
  }
  .dv-contact-actions,
  .dv-call,
  .dv-zalo {
    width: 100%;
  }
  .dv-card {
    padding: 16px;
  }
  .dv-prize-table {
    font-size: 11.5px;
  }
  .dv-prize-table th,
  .dv-prize-table td {
    padding: 7px 4px;
  }
  .dv-prize-table tbody th {
    white-space: normal;
  }
}