:root {
  --color-bg: #f5f5f7;
  --color-surface: #ffffff;
  --color-border: #d1d1d6;
  --color-text: #1d1d1f;
  --color-text-secondary: #6e6e73;
  --color-primary: #0a84ff;
  --color-primary-hover: #0060df;
  --color-danger: #ff3b30;
  --color-danger-hover: #d32f2f;
  --color-success: #34c759;
  --color-warning: #ff9500;
  --radius: 8px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  padding: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}

/* Shared site nav (matches loglifted.app landing) */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}
.site-nav__brand { color: var(--color-text); font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; text-decoration: none; }
.site-nav__cta {
  background: var(--color-primary);
  color: #fff;
  padding: 8px 16px;
  border-radius: 980px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
}
.site-nav__cta:hover { background: var(--color-primary-hover); }

header {
  margin-bottom: var(--space-xl);
}

header h1 {
  font-size: 1.75rem;
  font-weight: 700;
}

.subtitle {
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
}

.subtitle code {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.9em;
}

.header-description {
  margin-top: var(--space-md);
  color: var(--color-text-secondary);
  font-size: 0.92em;
  line-height: 1.6;
  max-width: 640px;
}

.header-description p + p {
  margin-top: var(--space-xs);
}

.header-description code {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.9em;
}

/* Sections */
.section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.section h2 {
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
}

/* Collapsible sections */
.section-toggle {
  cursor: pointer;
  user-select: none;
}

.section-toggle::before {
  content: "\25BE ";
  font-size: 0.85em;
  color: var(--color-text-secondary);
}

.section-toggle[aria-expanded="false"]::before {
  content: "\25B8 ";
}

.section-toggle[aria-expanded="false"] {
  margin-bottom: 0;
}

.collapsible > *:not(.section-toggle) {
  transition: none;
}

.collapsible.collapsed > *:not(.section-toggle) {
  display: none;
}

.section h3 {
  font-size: 1rem;
  margin-top: var(--space-md);
  margin-bottom: var(--space-sm);
}

/* Forms */
.inline-form {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-end;
  flex-wrap: wrap;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.form-group-checkbox {
  flex-direction: row;
  align-items: center;
  gap: var(--space-sm);
}

.form-group-checkbox label {
  font-size: 0.875rem;
  color: var(--color-text);
}

input[type="text"],
select {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.875rem;
  min-width: 180px;
}

textarea {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-family: inherit;
  width: 100%;
  resize: vertical;
}

input[type="text"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}

/* Buttons */
.btn {
  padding: var(--space-sm) var(--space-md);
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-radius: 980px;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
}

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-border);
}

.btn-danger {
  background: none;
  color: var(--color-danger);
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.8rem;
}

.btn-danger:hover {
  background: rgba(255, 59, 48, 0.1);
}

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: var(--space-xs);
  border-radius: 50%;
  min-width: 26px;
  min-height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}

.btn-icon-danger {
  color: var(--color-text-secondary);
}

.btn-icon-danger:hover {
  color: var(--color-danger);
  background: rgba(255, 59, 48, 0.1);
}

.btn-move {
  background: none;
  color: var(--color-text-secondary);
  padding: var(--space-xs);
  font-size: 0.8rem;
  min-width: 28px;
}

.btn-move:hover:not(:disabled) {
  background: var(--color-bg);
}

.btn-move:disabled {
  opacity: 0.3;
  cursor: default;
}

.btn-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-secondary);
  line-height: 1;
}

/* Item lists */
.item-list {
  list-style: none;
  margin-top: var(--space-md);
}

.item-list li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: var(--space-xs);
  background: var(--color-bg);
}

.item-list li .item-name {
  flex: 1;
  font-size: 0.875rem;
}

.item-list li .item-notes {
  color: var(--color-text-secondary);
  font-size: 0.8rem;
}

.item-list li .personal-best {
  color: var(--color-warning);
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

.item-list li .rounding-select {
  min-width: auto;
  flex-shrink: 0;
  padding: 2px var(--space-sm);
  font-size: 0.78rem;
}

.item-list .item-badge {
  background: var(--color-primary);
  color: #fff;
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 10px;
  font-weight: 600;
}

/* Exercise states */
.exercise-hidden .item-name,
.exercise-deleted .item-name {
  opacity: 0.5;
}

.exercise-deleted .item-name {
  text-decoration: line-through;
}

/* Collapsible groups */
.collapsible-group {
  display: block;
  border: none;
  background: none;
  padding: 0;
}

.collapsible-toggle {
  margin-top: var(--space-sm);
  font-size: 0.8rem;
}

.collapsible-toggle[aria-expanded="true"]::before {
  content: "\25BE ";
}

.collapsible-toggle[aria-expanded="false"]::before {
  content: "\25B8 ";
}

.collapsible-inner {
  margin-top: var(--space-xs);
  margin-left: var(--space-md);
}

/* Drag and drop — exercises to template */
.item-list li[draggable="true"] {
  cursor: grab;
}

.item-list li[draggable="true"]:active {
  cursor: grabbing;
}

.item-list li.dragging {
  opacity: 0.4;
}

.template-card-body.drop-target {
  background: rgba(0, 113, 227, 0.06);
  outline: 2px dashed var(--color-primary);
  outline-offset: -2px;
  border-radius: var(--radius);
}

/* Drag and drop — reorder within template */
.drag-handle {
  cursor: grab;
  color: var(--color-text-secondary);
  font-size: 1.2rem;
  line-height: 1;
  user-select: none;
  padding: 0 var(--space-xs);
}

.drag-handle:active {
  cursor: grabbing;
}

.template-item.drop-above,
.plan-template-item.drop-above {
  border-top: 2px solid var(--color-primary);
}

.template-item.drop-below,
.plan-template-item.drop-below {
  border-bottom: 2px solid var(--color-primary);
}

/* Template cards */
.template-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: var(--space-md);
  overflow: hidden;
}

.template-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg);
  cursor: pointer;
  user-select: none;
}

.template-card-header h4 {
  font-size: 0.9rem;
  cursor: default;
}

.inline-rename {
  font-size: 0.9rem;
  font-weight: 700;
  padding: 1px var(--space-xs);
  border: 1px solid var(--color-primary);
  border-radius: 4px;
  outline: none;
  min-width: 120px;
}

.template-card-body {
  padding: var(--space-md);
}

.template-card-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}

/* Superset inline form */
.superset-form {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-end;
  flex-wrap: wrap;
  margin-top: var(--space-sm);
  padding: var(--space-sm);
  background: var(--color-bg);
  border-radius: var(--radius);
}

.superset-form .superset-checkboxes {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.superset-form label.exercise-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
}

/* Plan template picker */
.plan-header {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.plan-template-picker {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

/* Est 1RM badge */
.est-1rm {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}

/* Progressions */
.progressions-section {
  margin-top: var(--space-lg);
}

.progression-template-heading {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: var(--space-sm) 0 var(--space-xs);
  margin-top: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-sm);
}

.progression-template-heading:first-child {
  margin-top: 0;
}

.progression-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  background: var(--color-bg);
}

.progression-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-sm);
}

.progression-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.progression-template {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.progression-hints {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-left: auto;
}

.hint-chip {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.hint-chip:hover {
  background: rgba(0, 113, 227, 0.08);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.progression-targets {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.progression-target-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.target-num {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  min-width: 24px;
  text-align: right;
}

.progression-target-input {
  flex: 1;
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  min-width: 0;
}

.progression-target-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}

.btn-add-iteration {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  padding: var(--space-xs) 0;
  margin-top: var(--space-xs);
  text-align: left;
}

.btn-add-iteration:hover {
  color: var(--color-primary);
}

/* Errors */
.error-msg {
  color: var(--color-danger);
  font-size: 0.8rem;
  min-height: 1.2em;
  margin-top: var(--space-xs);
}

.validation-errors {
  margin-bottom: var(--space-md);
}

.validation-errors ul {
  list-style: none;
  color: var(--color-danger);
  font-size: 0.85rem;
}

.validation-errors ul li::before {
  content: "\26A0\FE0F ";
}

/* Export */
.export-actions {
  display: flex;
  gap: var(--space-sm);
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal[hidden] {
  display: none;
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius);
  width: 90%;
  max-width: 700px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  font-size: 1rem;
}

#preview-json {
  flex: 1;
  overflow: auto;
  padding: var(--space-md) var(--space-lg);
  font-size: 0.8rem;
  line-height: 1.4;
  white-space: pre;
  font-family: "SF Mono", "Menlo", "Monaco", monospace;
}

.modal-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-border);
  text-align: right;
}

/* Import */
.section-desc {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  margin-bottom: var(--space-md);
}

.section-desc code {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.9em;
}

.dropzone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
}

.dropzone.drag-over {
  border-color: var(--color-primary);
  background: rgba(0, 113, 227, 0.06);
}

.dropzone-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.dropzone-icon {
  font-size: 1.5rem;
}

.dropzone-text {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.dropzone-text code {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.85em;
}

.btn-file {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.import-filename {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-sm);
}

.import-summary {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius);
  font-size: 0.85rem;
  line-height: 1.6;
}

.import-summary .stat-label {
  color: var(--color-text-secondary);
}

.import-summary .stat-value {
  font-weight: 600;
}

.import-summary .personal-best {
  color: var(--color-warning);
  font-size: 0.8rem;
  margin-left: var(--space-xs);
}

/* Empty states */
.empty-state {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  font-style: italic;
  padding: var(--space-md) 0;
}