.custom-studio {
  max-width: 1120px;
  margin: 20px auto 0;
  overflow: hidden;
  border: 1px solid #c9d2ca;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 18px 46px rgba(31, 48, 35, .07);
}

.custom-studio > header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 15px;
  padding: 18px 20px;
  border-bottom: 1px solid #dfe5df;
  background: linear-gradient(105deg, #f1f6f0 0 62%, #e3ece2 62% 100%);
}

.studio-seal {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid #264d36;
  color: #fff;
  background: #264d36;
  box-shadow: inset 0 0 0 3px #264d36, inset 0 0 0 4px rgba(255,255,255,.42);
  font-family: "Songti SC", STSong, serif;
  font-size: 18px;
}

.custom-studio > header span,
.studio-section-title span {
  color: #477156;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .1em;
}

.custom-studio > header h2 { margin: 4px 0 3px; font-size: 16px; }
.custom-studio > header p { margin: 0; color: var(--muted); font-size: 10px; }
.studio-state { min-width: 142px; padding-left: 15px; border-left: 1px solid #bac8bb; }
.studio-state small,
.studio-state strong,
.studio-state em { display: block; }
.studio-state small,
.studio-state em { color: #617065; font-size: 9px; font-style: normal; }
.studio-state strong { margin: 4px 0; font-size: 13px; }

.studio-layout { display: grid; grid-template-columns: minmax(280px, .8fr) minmax(430px, 1.2fr); }
.custom-brief,
.custom-ledger { min-width: 0; padding: 20px; }
.custom-brief { border-right: 1px solid #e1e6e1; background: #fbfcfa; }
.studio-section-title { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.studio-section-title small { color: var(--muted); font-size: 9px; }
.custom-brief label,
.custom-version-form label { display: grid; gap: 6px; margin-bottom: 12px; }
.custom-brief label > span,
.custom-version-form label > span { color: #4e5c52; font-size: 10px; font-weight: 700; }
.custom-brief input,
.custom-brief textarea,
.custom-version-form input,
.custom-version-form textarea,
.custom-version-form select {
  width: 100%;
  border: 1px solid #d1d9d2;
  border-radius: 9px;
  outline: 0;
  color: var(--ink);
  background: #fff;
  font: inherit;
}
.custom-brief input,
.custom-version-form input,
.custom-version-form select { height: 38px; padding: 0 11px; }
.custom-brief textarea,
.custom-version-form textarea { resize: vertical; min-height: 66px; padding: 10px 11px; line-height: 1.55; }
.custom-brief input:focus,
.custom-brief textarea:focus,
.custom-version-form input:focus,
.custom-version-form textarea:focus,
.custom-version-form select:focus { border-color: #477156; box-shadow: 0 0 0 3px rgba(71,113,86,.1); }

.studio-primary,
.studio-secondary,
.version-ledger button {
  min-height: 38px;
  border: 0;
  border-radius: 9px;
  font-weight: 750;
  cursor: pointer;
}
.studio-primary { width: 100%; color: #fff; background: #264d36; }
.studio-secondary { padding: 0 16px; color: #274332; background: #dfff38; }
.studio-primary:disabled,
.studio-secondary:disabled,
.version-ledger button:disabled { opacity: .5; cursor: not-allowed; }

.custom-version-form { margin-bottom: 15px; padding: 14px; border: 1px solid #dce3dc; border-radius: 12px; background: #f7f9f6; }
.version-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.publish-control { grid-template-columns: auto 1fr !important; align-items: start; gap: 9px !important; padding: 11px; border: 1px solid #ced9cf; border-radius: 10px; background: #fff; }
.publish-control input { width: 17px; height: 17px; margin: 2px 0 0; accent-color: #2f6a4b; }
.publish-control b,
.publish-control small { display: block; }
.publish-control b { color: #274332; font-size: 11px; }
.publish-control small { margin-top: 3px; color: #708077; font-size: 9px; line-height: 1.5; }
.publish-config { margin: 0 0 12px; padding: 12px; border-radius: 10px; background: #edf3ec; }
.custom-empty { padding: 32px 18px; border: 1px dashed #c9d2ca; border-radius: 12px; color: var(--muted); text-align: center; }
.custom-empty b { color: var(--ink); font-size: 12px; }
.custom-empty p { max-width: 390px; margin: 7px auto 0; font-size: 10px; line-height: 1.6; }

.version-ledger { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; }
.version-ledger li { position: relative; display: grid; grid-template-columns: 45px 1fr auto; gap: 12px; padding: 14px 0; border-top: 1px solid #e2e7e2; }
.version-ledger li:first-child { border-top: 0; }
.version-ledger li::before { content: ""; position: absolute; left: 21px; top: 0; bottom: 0; width: 1px; background: #cbd5cc; }
.version-ledger li:first-child::before { top: 26px; }
.version-ledger li:last-child::before { bottom: calc(100% - 27px); }
.version-number {
  position: relative;
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  border: 1px solid #aebcaf;
  border-radius: 50%;
  color: #315740;
  background: #fff;
  font-size: 11px;
  font-weight: 850;
  z-index: 1;
}
.version-ledger li.is-delivered .version-number { border-color: #264d36; color: #fff; background: #264d36; }
.version-copy strong,
.version-copy span,
.version-copy small { display: block; }
.version-copy strong { font-size: 12px; }
.version-copy span { margin-top: 5px; color: #5f6a61; font-size: 10px; line-height: 1.5; }
.version-copy small { margin-top: 7px; color: #8a948c; font-size: 9px; }
.version-actions { display: flex; align-items: center; gap: 7px; }
.version-actions a { color: #356247; font-size: 10px; font-weight: 700; text-decoration: none; }
.version-actions a:hover { text-decoration: underline; }
.version-ledger button { min-height: 32px; padding: 0 11px; color: #fff; background: #264d36; font-size: 10px; }
.version-ledger .status-pill { display: inline-flex; align-items: center; min-height: 26px; padding: 0 9px; border-radius: 999px; color: #315740; background: #e7efe8; font-size: 9px; font-weight: 750; }
.version-ledger li.is-history { opacity: .68; }

@media (max-width: 1120px) {
  .studio-layout { grid-template-columns: 1fr; }
  .custom-brief { border-right: 0; border-bottom: 1px solid #e1e6e1; }
}

@media (max-width: 720px) {
  .custom-studio > header { grid-template-columns: auto 1fr; }
  .studio-state { grid-column: 1 / -1; padding: 10px 0 0; border-top: 1px solid #bac8bb; border-left: 0; }
  .version-fields { grid-template-columns: 1fr; }
  .version-ledger li { grid-template-columns: 43px 1fr; }
  .version-actions { grid-column: 2; justify-content: flex-start; }
}