.planner-board {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 28px;
  margin: 52px 0;
  box-shadow: var(--shadow);
  border: 1px solid var(--card-border);
  transition: all 0.2s ease;
}

.planner-intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 22px;
}

.planner-intro h2 {
  font: 700 25px 'Playfair Display';
  margin: 0 0 8px;
  color: var(--ink);
}

.planner-intro p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.planner-tabs {
  display: flex;
  background: var(--tag-bg);
  border-radius: 9px;
  padding: 4px;
  gap: 2px;
}

.planner-tabs button {
  border: 0;
  background: transparent;
  padding: 9px 13px;
  border-radius: 7px;
  font: 600 13px 'DM Sans';
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.planner-tabs button.active {
  background: var(--card-bg);
  color: var(--purple);
  box-shadow: var(--icon-shadow);
}

.planner-content {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 30px;
  padding-top: 25px;
}

.plan-form {
  display: grid;
  gap: 13px;
  background: var(--tip-bg);
  padding: 18px;
  border-radius: 11px;
}

.plan-form label {
  display: grid;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--ink);
}

.plan-form input, .plan-form select {
  border: 1px solid var(--input-border);
  border-radius: 8px;
  background: var(--input-bg);
  padding: 10px 12px;
  font: 500 13px 'DM Sans', sans-serif;
  color: var(--ink);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
  box-sizing: border-box;
}

.plan-form select {
  cursor: pointer;
}

.plan-form select option {
  background: var(--card-bg, #ffffff);
  color: var(--ink, #1f2937);
  padding: 8px 10px;
}

.plan-form input:focus, .plan-form select:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px var(--purple-soft, rgba(104, 91, 179, 0.15));
}

.plan-form button {
  background: var(--purple);
  color: white;
  border: 0;
  border-radius: 8px;
  padding: 12px;
  font: 600 13px 'DM Sans';
  cursor: pointer;
  margin-top: 3px;
  transition: all 0.2s ease;
}

.plan-form button:hover {
  background: var(--purple-hover);
}

.plan-form button span {
  font-size: 17px;
  margin-left: 6px;
}

.planned-work h3 {
  font: 700 18px 'Playfair Display';
  margin: 0 0 5px;
  color: var(--ink);
}

.planned-work > div > p {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 15px;
}

.plan-list {
  display: grid;
  gap: 9px;
}

.plan-item {
  display: flex;
  align-items: center;
  gap: 11px;
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 12px;
  background: var(--card-bg);
  color: var(--ink);
  transition: all 0.2s ease;
}

.plan-item input {
  width: 18px;
  height: 18px;
  accent-color: var(--purple);
}

.plan-item .plan-copy {
  flex: 1;
}

.plan-item b {
  display: block;
  font-size: 14px;
  color: var(--ink);
}

.plan-item small {
  font-size: 12px;
  color: var(--muted);
}

.plan-item .remove-plan {
  border: 0;
  background: transparent;
  color: var(--subtle);
  font-size: 17px;
  cursor: pointer;
  transition: color 0.15s;
}

.plan-item .remove-plan:hover {
  color: #d9534f;
}

.empty-plan {
  font-size: 14px;
  color: var(--muted);
  border: 1px dashed var(--input-border);
  border-radius: 9px;
  padding: 19px;
  text-align: center;
}

.chapter-library {
  margin-bottom: 30px;
}

.chapter-library .section-head > p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

.chapter-groups {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.chapter-group {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--card-border);
  transition: all 0.2s ease;
}

.chapter-group header {
  margin: 0 0 13px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.chapter-group header span {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: bold;
  font-size: 15px;
  flex-shrink: 0;
}

.chapter-group h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin: 0;
}

.chapter-group header small {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: 3px;
}

.chapter-list {
  display: grid;
  gap: 6px;
}

.chapter-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s ease;
}

.chapter-row:hover {
  background: var(--purple-soft);
}

.chapter-row input {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--checkbox-border);
  background: var(--input-bg);
  border-radius: 5px;
  margin: 0;
  flex: none;
  cursor: pointer;
}

.chapter-row input:checked {
  background: var(--purple);
  border-color: var(--purple);
}

.chapter-row input:checked:after {
  content: '✓';
  color: #fff;
  display: block;
  text-align: center;
  line-height: 16px;
  font-size: 12px;
  font-weight: 700;
}

.chapter-row.done span {
  text-decoration: line-through;
  color: var(--subtle);
}

@media(max-width: 800px) {
  .planner-content { grid-template-columns: 1fr; }
  .chapter-groups { grid-template-columns: 1fr; }
}

@media(max-width: 650px) {
  .planner-board { padding: 20px; margin: 36px 0; }
  .planner-intro { display: block; }
  .planner-tabs { margin-top: 17px; width: max-content; }
  .planner-tabs button { padding: 9px 10px; }
  .chapter-library .section-head { align-items: flex-start; }
  .chapter-library .section-head > p { max-width: 125px; text-align: right; }
}