#mail-templates-view {
  --mail-border: #d8dee8;
  --mail-muted: #657083;
  --mail-primary: #315f9b;
  margin-top: 10px;
  color: #1f2937;
}

#mail-templates-view[hidden],
#workbook-view[hidden],
#mail-templates-view [hidden] {
  display: none !important;
}

.mail-templates-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 650px;
  border: 1px solid var(--mail-border);
  border-radius: 10px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 3px 14px rgba(33, 49, 74, 0.07);
}

.mail-template-sidebar {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 18px;
  border-right: 1px solid var(--mail-border);
  background: #f7f9fc;
}

.mail-template-sidebar-header,
.mail-template-heading,
.mail-template-preview-heading,
.mail-rendered-label {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

#mail-templates-view h2,
#mail-templates-view h3,
#mail-templates-view p {
  margin: 0;
}

#mail-templates-view h2 { font-size: 19px; }
#mail-templates-view h3 { font-size: 17px; }
#mail-templates-view p { color: var(--mail-muted); font-size: 13px; line-height: 1.4; }

.mail-template-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 18px;
}

.mail-template-search {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 18px;
}

.mail-template-search span {
  color: #36465a;
  font-size: 13px;
  font-weight: 700;
}

.mail-template-search + .mail-template-list {
  margin-top: 10px;
}

.mail-template-list-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
  padding: 10px 11px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: #26364a;
  text-align: left;
  cursor: pointer;
}

.mail-template-list-item:hover { background: #eaf0f8; }
.mail-template-list-item.active { border-color: #a9bfdb; background: #e3edf9; }
.mail-template-list-name { font-size: 14px; font-weight: 700; overflow-wrap: anywhere; }
.mail-template-list-meta { color: var(--mail-muted); font-size: 12px; }
.mail-template-empty { margin-top: 20px !important; text-align: center; }
.mail-template-library-actions { display: grid; gap: 8px; margin-top: auto; padding-top: 18px; }

#mail-templates-view button {
  min-height: 36px;
  padding: 7px 11px;
  border: 1px solid #b9c4d2;
  border-radius: 7px;
  background: linear-gradient(#fff, #f3f6f9);
  color: #283548;
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
}

#mail-templates-view button:hover { border-color: #8799af; background: #edf2f7; }
#mail-templates-view button:disabled { opacity: 0.45; cursor: not-allowed; }
#mail-templates-view .mail-primary-button { border-color: #315f9b; background: #315f9b; color: white; }
#mail-templates-view .mail-primary-button:hover { background: #254d82; }
#mail-templates-view .mail-danger-button { border-color: #d7a6a6; color: #982f2f; background: #fff8f8; }

.mail-template-main { min-width: 0; padding: 22px; }
.mail-template-heading { align-items: center; }
.mail-template-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }

.mail-template-message {
  min-height: 19px;
  margin: 12px 0;
  color: #28704b;
  font-size: 13px;
  font-weight: 650;
}
.mail-template-message-error { color: #a22c2c; }

.mail-template-editor-grid {
  display: grid;
  grid-template-columns: minmax(360px, 1.05fr) minmax(320px, 0.95fr);
  gap: 16px;
}

.mail-template-editor-grid.mail-template-view-only {
  grid-template-columns: minmax(0, 1fr);
}

.mail-template-main-empty {
  display: grid;
  place-content: center;
  min-height: 440px;
  padding: 30px;
  border: 1px dashed #c7d0dc;
  border-radius: 9px;
  background: #fafbfd;
  text-align: center;
}

.mail-template-main-empty h3 {
  margin-bottom: 7px !important;
}

.mail-template-card {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--mail-border);
  border-radius: 9px;
  background: #fff;
}

.mail-template-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.mail-template-field > span, .mail-preview-field > span { color: #36465a; font-size: 13px; font-weight: 700; }

#mail-templates-view input,
#mail-templates-view textarea {
  box-sizing: border-box;
  width: 100%;
  padding: 9px 10px;
  border: 1px solid #b9c4d2;
  border-radius: 6px;
  background: white;
  color: #202b3b;
  font: 14px/1.4 Arial, Helvetica, sans-serif;
}

#mail-templates-view textarea { resize: vertical; min-height: 250px; }
#mail-templates-view input:focus, #mail-templates-view textarea:focus { outline: 3px solid rgba(49, 95, 155, 0.16); border-color: #527caf; }
.mail-variable-builder { padding-top: 4px; border-top: 1px solid #edf0f4; }
.mail-variable-input-row { display: flex; gap: 8px; }
.mail-variable-input-row input { min-width: 0; }
.mail-variable-input-row button { flex: 0 0 auto; }
.mail-variable-list { display: flex; flex-wrap: wrap; gap: 7px; }
.mail-variable-row { display: inline-flex; align-items: stretch; }
#mail-templates-view .mail-variable-token { min-height: 30px; padding: 4px 8px; border-radius: 6px 0 0 6px; border-color: #9db5d2; background: #edf5ff; color: #234f82; font-family: Consolas, monospace; }
#mail-templates-view .mail-variable-remove { min-height: 30px; padding: 2px 7px; border-left: 0; border-radius: 0 6px 6px 0; color: #8d2c2c; }
.mail-template-hint { margin-top: 8px !important; }
.mail-preview-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 16px 0; }
.mail-preview-field { display: flex; min-width: 0; flex-direction: column; gap: 5px; }
#mail-templates-view input.mail-preview-input-error,
#mail-templates-view input.mail-preview-input-error:focus {
  border-color: #cf2f2f;
  outline: 2px solid rgba(207, 47, 47, 0.25);
  outline-offset: 1px;
}
#mail-templates-view input.mail-template-name-error,
#mail-templates-view input.mail-template-name-error:focus {
  border-color: #cf2f2f;
  outline: 2px solid rgba(207, 47, 47, 0.25);
  outline-offset: 1px;
}
.mail-rendered-block { margin-top: 14px; border: 1px solid #d7dee8; border-radius: 7px; overflow: hidden; }
.mail-rendered-label { align-items: center; padding: 7px 10px; border-bottom: 1px solid #e2e7ee; background: #f5f7fa; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
#mail-templates-view .mail-rendered-label button { min-height: 27px; padding: 3px 8px; font-size: 12px; text-transform: none; letter-spacing: normal; }
.mail-preview-subject { min-height: 20px; padding: 11px; font-size: 14px; font-weight: 700; overflow-wrap: anywhere; }
.mail-preview-body { box-sizing: border-box; min-height: 290px; margin: 0; padding: 12px; background: white; color: #202b3b; font: 14px/1.5 Arial, Helvetica, sans-serif; white-space: pre-wrap; overflow-wrap: anywhere; }

@media (max-width: 980px) {
  .mail-templates-layout { grid-template-columns: 1fr; }
  .mail-template-sidebar { border-right: 0; border-bottom: 1px solid var(--mail-border); }
  .mail-template-library-actions { margin-top: 14px; }
  .mail-template-editor-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .mail-template-main, .mail-template-sidebar { padding: 14px; }
  .mail-template-heading, .mail-template-preview-heading { flex-direction: column; align-items: stretch; }
  .mail-template-actions { justify-content: flex-start; }
  .mail-preview-fields { grid-template-columns: 1fr; }
}