/* Sjednejte si sami – /sjednejte-si-sami (barvy z style.css) */
.calc-cards.sj-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sj-card { height: 100%; cursor: default; }
.sj-card:hover { transform: none; }
.sj-card h2.calc-card-name { font-size: 1.1rem; color: var(--navy); margin: 0; }
.sj-icon { background: var(--blue-strong); }
.sj-btn {
  margin-top: .6rem; width: 100%; background: var(--blue-strong); border-color: var(--blue-strong); color: #fff;
  border-radius: .85rem; padding: .85rem 1.25rem; font-size: .95rem;
}
.sj-btn:hover { background: var(--blue-hover); border-color: var(--blue-hover); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(var(--navy-rgb),.2); }

.sj-guide { margin-top: 4rem; }
.sj-h2 { font-size: clamp(1.4rem, 3vw, 1.8rem); font-weight: 800; color: var(--navy); letter-spacing: -.02em; line-height: 1.25; }
.sj-guide-lead { margin: .75rem 0 1.75rem; color: var(--text-muted); max-width: 720px; line-height: 1.7; }
.sj-guide-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; }
.sj-guide-col { background: var(--bg-alt); border-radius: var(--r-lg); padding: 1.5rem; }
.sj-guide-col h3 { font-size: 1rem; font-weight: 800; color: var(--navy); margin-bottom: .9rem; }

.sj-check { list-style: none; padding: 0; margin: 0; display: grid; gap: .7rem; }
.sj-check li { position: relative; padding-left: 1.6rem; font-size: .92rem; line-height: 1.6; color: #33493F; }
.sj-check li::before {
  content: ''; position: absolute; left: 0; top: .3rem; width: 1rem; height: 1rem; border-radius: 50%;
  background: var(--blue-strong) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / 62% no-repeat;
}

.sj-help {
  margin-top: 3rem; padding: 1.75rem 2rem; border-radius: var(--r-lg); background: var(--navy); color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
}
.sj-help p { color: rgba(255,255,255,.85); line-height: 1.65; max-width: 620px; }
.sj-help .sj-help-title { color: #fff; font-weight: 800; font-size: 1.15rem; margin-bottom: .3rem; }
.sj-help .btn-primary { background: #fff; color: var(--navy); border-color: #fff; box-shadow: none; flex-shrink: 0; }
.sj-help .btn-primary:hover { background: var(--bg-alt); border-color: var(--bg-alt); }

/* Detail sjednávače */
.sj-before { margin: 1.5rem 0; border: 1px solid var(--border); border-radius: var(--r); background: var(--bg-alt); }
.sj-before summary { cursor: pointer; padding: 1rem 1.25rem; font-weight: 700; color: var(--navy); }
.sj-before summary:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.sj-before .sj-check { padding: 0 1.25rem 1.25rem; }
.sj-frame { border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden; background: #fff; }
.sj-frame iframe { display: block; width: 100%; min-height: 1000px; border: 0; }
.sj-note { margin-top: .9rem; font-size: .85rem; color: var(--text-muted); line-height: 1.6; }
.sj-note a { color: var(--navy); font-weight: 600; text-decoration: underline; }

@media (max-width: 1000px) {
  .calc-cards.sj-cards, .sj-guide-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 700px) {
  .sj-help { flex-direction: column; align-items: stretch; padding: 1.5rem; }
  .sj-help .btn { width: 100%; }
  .sj-frame { border-radius: var(--r); margin: 0 -.5rem; }
}