/* ============================================================
   LIBRETIME UI — Forms Component
   lt-forms.css
   ============================================================ */

/* ============================================================
   INPUT & TEXTAREA
   ============================================================ */

.lt-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.lt-input,
.lt-textarea {
  width: 100%;
  background: var(--lt-surface-2);
  color: var(--lt-text);
  font-family: var(--lt-font);
  font-size: 14px;
  line-height: 1.5;
  border: 1px solid var(--lt-border);
  border-radius: var(--lt-radius);
  padding: 0.65rem 0.9rem;
  outline: none;
  transition: background var(--lt-duration) var(--lt-ease),
              border-color var(--lt-duration) var(--lt-ease);
  position: relative;
  z-index: 1;
}

.lt-input::placeholder,
.lt-textarea::placeholder {
  color: var(--lt-placeholder);
}

.lt-textarea {
  resize: vertical;
  min-height: 100px;
}

/* ── Animated border fill from center, clipped before rounded corners ── */
.lt-input-wrap::before,
.lt-input-wrap::after {
  content: '';
  position: absolute;
  bottom: -1px;
  height: 2px;
  width: 0;
  background: var(--lt-accent);
  border-radius: 0 0 var(--lt-radius) var(--lt-radius);
  transition: width 260ms var(--lt-ease);
  z-index: 2;
  pointer-events: none;
}

/* Grow from center outward, stop before the rounded corners */
.lt-input-wrap::before { left:  50%; }
.lt-input-wrap::after  { right: 50%; }

.lt-input-wrap:focus-within::before,
.lt-input-wrap:focus-within::after {
  width: calc(50% - var(--lt-radius));
}

.lt-input:focus,
.lt-textarea:focus {
  background: var(--lt-surface-3);
  border-color: rgba(77,143,209,0.3);
}

/* Textarea wrapper */
.lt-textarea-wrap {
  position: relative;
  display: flex;
}

.lt-textarea-wrap::before,
.lt-textarea-wrap::after {
  content: '';
  position: absolute;
  bottom: -1px;
  height: 2px;
  width: 0;
  background: var(--lt-accent);
  border-radius: 0 0 var(--lt-radius) var(--lt-radius);
  transition: width 260ms var(--lt-ease);
  z-index: 2;
  pointer-events: none;
}

.lt-textarea-wrap::before { left:  50%; }
.lt-textarea-wrap::after  { right: 50%; }

.lt-textarea-wrap:focus-within::before,
.lt-textarea-wrap:focus-within::after {
  width: calc(50% - var(--lt-radius));
}

.lt-textarea-wrap .lt-textarea:focus {
  background: var(--lt-surface-3);
  border-color: rgba(77,143,209,0.3);
}

/* Input with icon */
.lt-input-icon {
  position: absolute;
  left: 0.85rem;
  color: var(--lt-text-faint);
  pointer-events: none;
  z-index: 3;
  transition: color var(--lt-duration) var(--lt-ease);
  display: flex;
  align-items: center;
}

.lt-input-wrap:focus-within .lt-input-icon { color: var(--lt-accent); }

.lt-input.has-icon-left  { padding-left: 2.4rem; }
.lt-input.has-icon-right { padding-right: 2.4rem; }

.lt-input-icon-right {
  right: 0.85rem;
  left: auto;
  position: absolute;
  z-index: 3;
  color: var(--lt-text-faint);
  display: flex;
  align-items: center;
  cursor: pointer;
  transition: color var(--lt-duration) var(--lt-ease);
}

.lt-input-icon-right:hover { color: var(--lt-text); }
.lt-input-wrap:focus-within .lt-input-icon-right { color: var(--lt-accent); }

/* States */
.lt-field.is-error .lt-input,
.lt-field.is-error .lt-textarea {
  border-color: var(--lt-danger-border);
  background: var(--lt-danger-dim);
}

.lt-field.is-error .lt-input-wrap::before,
.lt-field.is-error .lt-input-wrap::after,
.lt-field.is-error .lt-textarea-wrap::before,
.lt-field.is-error .lt-textarea-wrap::after {
  background: var(--lt-danger);
}

.lt-field.is-success .lt-input,
.lt-field.is-success .lt-textarea {
  border-color: var(--lt-success-border);
}

.lt-field.is-success .lt-input-wrap::before,
.lt-field.is-success .lt-input-wrap::after,
.lt-field.is-success .lt-textarea-wrap::before,
.lt-field.is-success .lt-textarea-wrap::after {
  background: var(--lt-success);
  width: calc(50% - var(--lt-radius));
}

.lt-input:disabled,
.lt-textarea:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Char counter */
.lt-char-count {
  position: absolute;
  bottom: 0.5rem;
  right: 0.75rem;
  font-size: 11px;
  color: var(--lt-text-faint);
  pointer-events: none;
  z-index: 3;
  transition: color var(--lt-duration);
}

.lt-char-count.near-limit { color: var(--lt-warning); }
.lt-char-count.over-limit { color: var(--lt-danger); }

/* ============================================================
   PASSWORD INPUT
   ============================================================ */

.lt-password-strength {
  height: 3px;
  margin-top: 0.5rem;
  border-radius: 99px;
  background: var(--lt-surface-3);
  overflow: hidden;
  position: relative;
}

.lt-password-strength-bar {
  height: 100%;
  border-radius: 99px;
  width: 0%;
  transition: width 400ms var(--lt-ease-spring),
              background 400ms var(--lt-ease);
}

.lt-password-strength-bar[data-level="1"] { width: 20%; background: var(--lt-danger); }
.lt-password-strength-bar[data-level="2"] { width: 40%; background: var(--lt-danger); }
.lt-password-strength-bar[data-level="3"] { width: 65%; background: var(--lt-warning); }
.lt-password-strength-bar[data-level="4"] { width: 85%; background: var(--lt-accent); }
.lt-password-strength-bar[data-level="5"] { width: 100%; background: var(--lt-success); }

.lt-password-strength-label {
  font-size: 11px;
  margin-top: 0.3rem;
  color: var(--lt-text-faint);
  transition: color var(--lt-duration);
  display: flex;
  justify-content: flex-end;
}

/* ============================================================
   EMAIL INPUT
   ============================================================ */

.lt-email-status {
  position: absolute;
  right: 0.85rem;
  z-index: 3;
  display: flex;
  align-items: center;
  opacity: 0;
  transform: scale(0.7);
  transition: opacity 220ms var(--lt-ease),
              transform 220ms var(--lt-ease-spring);
}

.lt-email-status.visible {
  opacity: 1;
  transform: scale(1);
}

.lt-email-status.valid svg   { color: var(--lt-success); }
.lt-email-status.invalid svg { color: var(--lt-danger); }

/* ============================================================
   CHECKBOX  — stroke-draw checkmark + ripple + active color
   ============================================================ */

.lt-checkbox-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  cursor: pointer;
  user-select: none;
  position: relative;
}

.lt-checkbox-wrap input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.lt-checkbox-box {
  width: 18px;
  height: 18px;
  min-width: 18px;
  border: 1.5px solid var(--lt-border-hover);
  border-radius: 5px;
  background: var(--lt-surface-2);
  position: relative;
  transition: background var(--lt-duration) var(--lt-ease),
              border-color var(--lt-duration) var(--lt-ease),
              transform var(--lt-duration) var(--lt-ease-spring);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Ripple burst on the box when checked */
.lt-checkbox-box::before {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  background: var(--lt-accent-dim);
  transform: scale(0);
  opacity: 0;
  pointer-events: none;
  transition: none;
}

.lt-checkbox-wrap input:checked + .lt-checkbox-box::before {
  animation: lt-cb-ripple 0.38s var(--lt-ease) both;
}

@keyframes lt-cb-ripple {
  0%   { transform: scale(0); opacity: 0.7; }
  100% { transform: scale(1); opacity: 0; }
}

/* Checkmark — proper ✓ shape with stroke-draw animation */
.lt-checkbox-box svg {
  color: #fff;
  width: 11px;
  height: 11px;
  stroke-width: 2.5;
  overflow: visible;
}

.lt-checkbox-box svg polyline {
  stroke-dasharray: 25;
  stroke-dashoffset: 25;
  transition: stroke-dashoffset 220ms 40ms ease-in-out;
}

.lt-checkbox-wrap:hover .lt-checkbox-box {
  border-color: var(--lt-accent);
  background: var(--lt-accent-dim);
}

.lt-checkbox-wrap input:checked + .lt-checkbox-box {
  background: var(--lt-accent);
  border-color: var(--lt-accent);
  transform: scale(1.1);
}

/* Slight spring-back after the scale-up */
.lt-checkbox-wrap input:checked + .lt-checkbox-box {
  animation: lt-cb-bounce 300ms var(--lt-ease-spring) both;
}

@keyframes lt-cb-bounce {
  0%   { transform: scale(0.85); }
  60%  { transform: scale(1.15); }
  100% { transform: scale(1); }
}

.lt-checkbox-wrap input:checked + .lt-checkbox-box svg polyline {
  stroke-dashoffset: 0;
}

/* Active label highlight */
.lt-checkbox-label {
  font-size: 14px;
  color: var(--lt-text);
  line-height: 1.4;
  transition: color var(--lt-duration) var(--lt-ease);
}

.lt-checkbox-wrap input:checked ~ .lt-checkbox-label {
  color: var(--lt-accent);
}

.lt-checkbox-wrap:active .lt-checkbox-box { transform: scale(0.88); }

/* Indeterminate */
.lt-checkbox-wrap input:indeterminate + .lt-checkbox-box {
  background: var(--lt-accent);
  border-color: var(--lt-accent);
}

/* ============================================================
   RADIO  — active label color + ripple
   ============================================================ */

.lt-radio-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  cursor: pointer;
  user-select: none;
  position: relative;
}

.lt-radio-wrap input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.lt-radio-dot {
  width: 18px;
  height: 18px;
  min-width: 18px;
  border: 1.5px solid var(--lt-border-hover);
  border-radius: 50%;
  background: var(--lt-surface-2);
  position: relative;
  transition: border-color var(--lt-duration) var(--lt-ease),
              background var(--lt-duration) var(--lt-ease),
              transform var(--lt-duration) var(--lt-ease-spring);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.lt-radio-dot::before {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  background: var(--lt-accent-dim);
  transform: scale(0);
  opacity: 0;
  pointer-events: none;
}

.lt-radio-wrap input:checked + .lt-radio-dot::before {
  animation: lt-cb-ripple 0.38s var(--lt-ease) both;
}

.lt-radio-dot::after {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #fff;
  opacity: 0;
  transform: scale(0);
  transition: opacity 180ms var(--lt-ease),
              transform 220ms var(--lt-ease-spring);
  position: relative;
  z-index: 1;
}

.lt-radio-wrap:hover .lt-radio-dot {
  border-color: var(--lt-accent);
  background: var(--lt-accent-dim);
}

.lt-radio-wrap input:checked + .lt-radio-dot {
  background: var(--lt-accent);
  border-color: var(--lt-accent);
}

.lt-radio-wrap input:checked + .lt-radio-dot::after {
  opacity: 1;
  transform: scale(1);
}

.lt-radio-wrap:active .lt-radio-dot { transform: scale(0.88); }

.lt-radio-label {
  font-size: 14px;
  color: var(--lt-text);
  transition: color var(--lt-duration) var(--lt-ease);
}

.lt-radio-wrap input:checked ~ .lt-radio-label {
  color: var(--lt-accent);
}

/* Radio group card style */
.lt-radio-card-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.lt-radio-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--lt-border);
  border-radius: var(--lt-radius);
  background: var(--lt-surface-2);
  cursor: pointer;
  transition: border-color var(--lt-duration) var(--lt-ease),
              background var(--lt-duration) var(--lt-ease),
              transform var(--lt-duration-fast) var(--lt-ease);
}

.lt-radio-card:hover {
  border-color: var(--lt-border-hover);
  background: var(--lt-surface-3);
}

.lt-radio-card.is-selected {
  border-color: rgba(77,143,209,0.4);
  background: var(--lt-accent-dim);
}

.lt-radio-card:active { transform: scale(0.99); }

/* ============================================================
   TOGGLE  — #3 style pulse on thumb (stronger)
   ============================================================ */

.lt-toggle-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  user-select: none;
}

.lt-toggle-wrap input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.lt-toggle-track {
  position: relative;
  width: 44px;
  height: 24px;
  background: var(--lt-surface-3);
  border: 1px solid var(--lt-border-hover);
  border-radius: 99px;
  transition: background 280ms var(--lt-ease),
              border-color 280ms var(--lt-ease);
  flex-shrink: 0;
}

.lt-toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--lt-text-muted);
  transition: transform 280ms var(--lt-ease-spring),
              background 280ms var(--lt-ease),
              box-shadow 280ms var(--lt-ease);
  box-shadow: 0 1px 4px rgba(0,0,0,0.4);
}

/* Pulse ring — fully opaque at start (scale 0), fades out as it expands */
.lt-toggle-thumb::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60px;
  height: 60px;
  margin: -30px 0 0 -30px;
  background: rgba(77, 143, 209, 0.75);
  border-radius: 50%;
  opacity: 1;
  transform: scale(0);
  pointer-events: none;
  z-index: 1;
}

.lt-toggle-wrap input:checked ~ .lt-toggle-track .lt-toggle-thumb::before {
  transform: scale(1);
  opacity: 0;
  transition: transform 0.5s ease, opacity 0.5s ease;
}

.lt-toggle-wrap input:checked ~ .lt-toggle-track {
  background: var(--lt-accent);
  border-color: var(--lt-accent);
}

.lt-toggle-wrap input:checked ~ .lt-toggle-track .lt-toggle-thumb {
  transform: translateX(20px);
  background: #fff;
  box-shadow: 0 2px 8px rgba(77,143,209,0.4);
}

.lt-toggle-wrap:hover .lt-toggle-track {
  border-color: var(--lt-accent);
}

.lt-toggle-wrap:active .lt-toggle-thumb {
  width: 20px;
}

.lt-toggle-wrap input:checked ~ .lt-toggle-track:active .lt-toggle-thumb {
  transform: translateX(16px);
  width: 20px;
}

.lt-toggle-label {
  font-size: 14px;
  color: var(--lt-text);
}

.lt-toggle-label-pair {
  display: flex;
  gap: 0.35rem;
  font-size: 13px;
}

.lt-toggle-label-pair .off { color: var(--lt-text-muted); transition: color 280ms; }
.lt-toggle-label-pair .on  { color: var(--lt-text-faint); transition: color 280ms; }

.lt-toggle-wrap input:checked ~ .lt-toggle-label-pair .off { color: var(--lt-text-faint); }
.lt-toggle-wrap input:checked ~ .lt-toggle-label-pair .on  { color: var(--lt-accent); }

/* ============================================================
   SELECT (native styled)
   ============================================================ */

.lt-select-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.lt-select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  background: var(--lt-surface-2);
  color: var(--lt-text);
  font-family: var(--lt-font);
  font-size: 14px;
  border: 1px solid var(--lt-border);
  border-radius: var(--lt-radius);
  padding: 0.65rem 2.5rem 0.65rem 0.9rem;
  cursor: pointer;
  outline: none;
  transition: background var(--lt-duration) var(--lt-ease),
              border-color var(--lt-duration) var(--lt-ease);
}

.lt-select:focus {
  background: var(--lt-surface-3);
  border-color: rgba(77,143,209,0.35);
}

.lt-select-arrow {
  position: absolute;
  right: 0.85rem;
  pointer-events: none;
  color: var(--lt-text-faint);
  transition: transform 240ms var(--lt-ease),
              color var(--lt-duration) var(--lt-ease);
  display: flex;
  align-items: center;
}

.lt-select-wrap:focus-within .lt-select-arrow {
  transform: rotate(180deg);
  color: var(--lt-accent);
}

.lt-select option {
  background: var(--lt-surface-2);
  color: var(--lt-text);
}

/* ============================================================
   CUSTOM DROPDOWN BASE (search-select, multi-select, pm-select)
   ============================================================ */

.lt-dropdown {
  position: relative;
  width: 100%;
}

.lt-dropdown-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  background: var(--lt-surface-2);
  border: 1px solid var(--lt-border);
  border-radius: var(--lt-radius);
  padding: 0.65rem 0.9rem;
  cursor: pointer;
  font-family: var(--lt-font);
  font-size: 14px;
  color: var(--lt-text);
  outline: none;
  transition: background var(--lt-duration) var(--lt-ease),
              border-color var(--lt-duration) var(--lt-ease);
  text-align: left;
  min-height: 42px;
}

.lt-dropdown-trigger:hover {
  background: var(--lt-surface-3);
  border-color: var(--lt-border-hover);
}

.lt-dropdown-trigger.is-open {
  background: var(--lt-surface-3);
  border-color: rgba(77,143,209,0.35);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.lt-dropdown-trigger-text {
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.lt-dropdown-trigger-text.placeholder { color: var(--lt-placeholder); }

.lt-dropdown-chevron {
  color: var(--lt-text-faint);
  transition: transform 240ms var(--lt-ease), color var(--lt-duration);
  flex-shrink: 0;
  display: flex;
}

.lt-dropdown-trigger.is-open .lt-dropdown-chevron {
  transform: rotate(180deg);
  color: var(--lt-accent);
}

.lt-dropdown-panel {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--lt-surface-2);
  border: 1px solid rgba(77,143,209,0.35);
  border-top: none;
  border-bottom-left-radius: var(--lt-radius);
  border-bottom-right-radius: var(--lt-radius);
  z-index: 100;
  max-height: 260px;
  overflow-y: auto;
  overscroll-behavior: contain;
  display: none;
  box-shadow: var(--lt-shadow);
}

.lt-dropdown-panel.is-open {
  display: block;
  animation: lt-slide-down 200ms var(--lt-ease) both;
}

/* Search input inside dropdown */
.lt-dropdown-search {
  padding: 0.5rem;
  border-bottom: 1px solid var(--lt-border);
  position: sticky;
  top: 0;
  background: var(--lt-surface-2);
  z-index: 1;
}

.lt-dropdown-search input {
  width: 100%;
  background: var(--lt-surface-3);
  border: 1px solid var(--lt-border);
  border-radius: var(--lt-radius-sm);
  padding: 0.45rem 0.75rem;
  font-family: var(--lt-font);
  font-size: 13px;
  color: var(--lt-text);
  outline: none;
  transition: border-color var(--lt-duration);
}

.lt-dropdown-search input:focus {
  border-color: rgba(77,143,209,0.4);
}

.lt-dropdown-search input::placeholder {
  color: var(--lt-placeholder);
}

/* Option items */
.lt-dropdown-option {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.9rem;
  font-size: 14px;
  color: var(--lt-text);
  cursor: pointer;
  transition: background var(--lt-duration-fast) var(--lt-ease);
  user-select: none;
  animation: lt-fade-in 150ms var(--lt-ease) both;
}

.lt-dropdown-option:hover { background: var(--lt-surface-3); }

.lt-dropdown-option.is-selected {
  color: var(--lt-accent);
  background: var(--lt-accent-dim);
}

.lt-dropdown-option.is-hidden { display: none; }

.lt-dropdown-option-check {
  width: 16px;
  height: 16px;
  min-width: 16px;
  border-radius: 4px;
  border: 1.5px solid var(--lt-border-hover);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--lt-duration) var(--lt-ease);
  flex-shrink: 0;
}

.lt-dropdown-option.is-selected .lt-dropdown-option-check {
  background: var(--lt-accent);
  border-color: var(--lt-accent);
}

.lt-dropdown-option-check svg {
  opacity: 0;
  transform: scale(0);
  transition: all 180ms var(--lt-ease-spring);
  color: #fff;
  width: 10px;
  height: 10px;
  stroke-width: 2.5;
}

.lt-dropdown-option.is-selected .lt-dropdown-option-check svg {
  opacity: 1;
  transform: scale(1);
}

.lt-dropdown-empty {
  padding: 1.5rem 1rem;
  text-align: center;
  color: var(--lt-text-faint);
  font-size: 13px;
}

/* Tags for multi-select */
.lt-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.lt-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--lt-accent-dim);
  color: var(--lt-accent);
  border: 1px solid rgba(77,143,209,0.25);
  border-radius: var(--lt-radius-sm);
  font-size: 12px;
  padding: 2px 6px 2px 8px;
  line-height: 1.4;
  animation: lt-scale-in 150ms var(--lt-ease-spring) both;
}

.lt-tag-remove {
  display: flex;
  align-items: center;
  cursor: pointer;
  color: var(--lt-accent);
  opacity: 0.7;
  transition: opacity var(--lt-duration-fast);
  padding: 1px;
  border-radius: 2px;
}

.lt-tag-remove:hover { opacity: 1; }

.lt-tag-remove svg { width: 10px; height: 10px; stroke-width: 3; }

/* ============================================================
   PLUS-MINUS SELECT (PM Select)
   ============================================================ */

.lt-pm-option {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.9rem;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
  transition: background var(--lt-duration-fast);
  position: relative;
  overflow: hidden; /* for ripple containment */
}

.lt-pm-option:hover { background: var(--lt-surface-3); }

.lt-pm-option-label {
  flex: 1;
  color: var(--lt-text);
  transition: color var(--lt-duration);
  pointer-events: none;
}

.lt-pm-option.is-included {
  background: rgba(92,184,138,0.07);
}

.lt-pm-option.is-included .lt-pm-option-label { color: var(--lt-success); }

.lt-pm-option.is-excluded {
  background: rgba(224,112,112,0.07);
}

.lt-pm-option.is-excluded .lt-pm-option-label { color: var(--lt-danger); }

.lt-pm-btn {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--lt-border-hover);
  background: var(--lt-surface-3);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--lt-duration-fast) var(--lt-ease),
              transform var(--lt-duration-fast) var(--lt-ease-spring);
  flex-shrink: 0;
  color: var(--lt-text-muted);
  position: relative;
  z-index: 1;
}

.lt-pm-btn:hover { border-color: transparent; }

.lt-pm-btn.plus:hover  { background: var(--lt-success); color: #fff; }
.lt-pm-btn.minus:hover { background: var(--lt-danger);  color: #fff; }

.lt-pm-btn.active-plus  { background: var(--lt-success); border-color: var(--lt-success); color: #fff; }
.lt-pm-btn.active-minus { background: var(--lt-danger);  border-color: var(--lt-danger);  color: #fff; }

/* Subtle pop — just a light spring, not aggressive */
@keyframes lt-pm-pop {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.18); }
  100% { transform: scale(1); }
}

.lt-pm-btn.is-popping {
  animation: lt-pm-pop 180ms var(--lt-ease-spring) both;
}

.lt-pm-btn svg { width: 11px; height: 11px; stroke-width: 3; }

/* Ripple fill effect on row click */
@keyframes lt-pm-ripple {
  from { transform: scale(0); opacity: 0.45; }
  to   { transform: scale(1); opacity: 0; }
}

.lt-pm-ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  animation: lt-pm-ripple 480ms ease-out both;
  pointer-events: none;
  z-index: 0;
}

/* PM trigger tags */
.lt-pm-tag {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 12px;
  padding: 2px 7px;
  border-radius: var(--lt-radius-sm);
  animation: lt-scale-in 150ms var(--lt-ease-spring) both;
}

.lt-pm-tag.included {
  background: var(--lt-success-dim);
  color: var(--lt-success);
  border: 1px solid var(--lt-success-border);
}

.lt-pm-tag.excluded {
  background: var(--lt-danger-dim);
  color: var(--lt-danger);
  border: 1px solid var(--lt-danger-border);
}

.lt-pm-tag-icon { opacity: 0.8; }

/* ============================================================
   FILE UPLOAD
   ============================================================ */

.lt-file-zone {
  border: 2px dashed var(--lt-border);
  border-radius: var(--lt-radius-lg);
  background: var(--lt-surface-2);
  transition: border-color var(--lt-duration) var(--lt-ease),
              background var(--lt-duration) var(--lt-ease),
              transform var(--lt-duration) var(--lt-ease);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.lt-file-zone:hover,
.lt-file-zone.drag-over {
  border-color: var(--lt-accent);
  background: var(--lt-accent-dim);
}

.lt-file-zone.drag-over { transform: scale(1.01); }

.lt-file-zone-inner {
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lt-file-zone-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--lt-radius);
  background: var(--lt-surface-3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--lt-accent);
  flex-shrink: 0;
  transition: background var(--lt-duration), transform var(--lt-duration) var(--lt-ease-spring);
}

.lt-file-zone:hover .lt-file-zone-icon { transform: translateY(-2px); }

.lt-file-zone-text { flex: 1; }

.lt-file-zone-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--lt-text);
  margin-bottom: 2px;
}

.lt-file-zone-sub {
  font-size: 12px;
  color: var(--lt-text-faint);
  line-height: 1.4;
}

.lt-file-zone-sub .allowed-types {
  color: var(--lt-text-muted);
  font-style: normal;
}

.lt-file-btn {
  flex-shrink: 0;
  background: var(--lt-accent);
  color: #fff;
  border: none;
  border-radius: var(--lt-radius);
  padding: 0.5rem 1rem;
  font-family: var(--lt-font);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--lt-duration), transform var(--lt-duration-fast);
  white-space: nowrap;
}

.lt-file-btn:hover { background: #3a7dc2; transform: translateY(-1px); }
.lt-file-btn:active { transform: scale(0.97); }

.lt-file-input { display: none; }

/* File previews — list layout with optional columns */
.lt-file-previews {
  padding: 0.75rem 1rem 1rem; /* top gap separates from zone */
}

.lt-file-previews-grid {
  display: grid;
  grid-template-columns: repeat(var(--cols, 1), minmax(0, 1fr));
  gap: 0.45rem;
}

/* List row item */
.lt-file-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--lt-radius);
  background: transparent;
  border: 1px solid var(--lt-border);
  animation: lt-scale-in 200ms var(--lt-ease-spring) both;
  transition: border-color var(--lt-duration-fast);
  overflow: hidden; /* needed for height-collapse animation */
}

.lt-file-item:hover {
  border-color: rgba(77,143,209,0.35);
}

/* Preview thumbnail (left) */
.lt-file-item-preview {
  width: 42px;
  height: 42px;
  min-width: 42px;
  border-radius: var(--lt-radius-sm);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--lt-surface-2);
  flex-shrink: 0;
}

.lt-file-item-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lt-file-type-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
}

.lt-file-type-icon svg {
  width: 100%;
  height: 100%;
}

/* Info section (center) */
.lt-file-item-details {
  flex: 1;
  min-width: 0;
}

.lt-file-item-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--lt-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

/* Extension badge — colored, bold */
.lt-file-item-ext {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 1px 5px;
  border-radius: 3px;
  margin-top: 3px;
}

/* Color coding per file type */
.lt-file-type-pdf   .lt-file-type-icon { color: #e07070; }
.lt-file-type-doc   .lt-file-type-icon { color: #4d8fd1; }
.lt-file-type-sheet .lt-file-type-icon { color: #5cb88a; }
.lt-file-type-txt   .lt-file-type-icon { color: #888; }
.lt-file-type-zip   .lt-file-type-icon { color: #d4a257; }
.lt-file-type-other .lt-file-type-icon { color: var(--lt-text-faint); }

/* Ext badge colours */
.lt-ext-pdf   { background: rgba(224,112,112,0.15); color: #e07070; }
.lt-ext-doc   { background: rgba(77,143,209,0.15);  color: #4d8fd1; }
.lt-ext-sheet { background: rgba(92,184,138,0.15);  color: #5cb88a; }
.lt-ext-txt   { background: rgba(136,136,136,0.15); color: #888; }
.lt-ext-zip   { background: rgba(212,162,87,0.15);  color: #d4a257; }
.lt-ext-img   { background: rgba(77,143,209,0.15);  color: #4d8fd1; }
.lt-ext-other { background: var(--lt-accent-dim);   color: var(--lt-accent); }

/* Remove button (right) */
.lt-file-remove {
  width: 26px;
  height: 26px;
  min-width: 26px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--lt-text-faint);
  opacity: 0.4;
  transition: opacity var(--lt-duration-fast),
              background var(--lt-duration-fast),
              color var(--lt-duration-fast),
              border-color var(--lt-duration-fast),
              transform var(--lt-duration-fast) var(--lt-ease-spring);
  flex-shrink: 0;
}

.lt-file-item:hover .lt-file-remove { opacity: 1; }

.lt-file-remove:hover {
  background: var(--lt-danger-dim);
  border-color: var(--lt-danger-border);
  color: var(--lt-danger);
  transform: scale(1.1);
}

.lt-file-remove:active { transform: scale(0.9); }

.lt-file-remove svg { width: 12px; height: 12px; stroke-width: 2.5; }

.lt-file-error {
  font-size: 12px;
  color: var(--lt-danger);
  padding: 0.4rem 1rem 0.5rem;
  display: none;
}

.lt-file-error.visible { display: block; }

/* ============================================================
   BUTTONS
   ============================================================ */

.lt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-family: var(--lt-font);
  font-size: 13px;
  font-weight: 500;
  line-height: 1;
  padding: 0.58rem 1.15rem;
  border-radius: var(--lt-radius);
  border: 1px solid transparent;
  cursor: pointer;
  outline: none;
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
  transition:
    background  var(--lt-duration) var(--lt-ease),
    border-color var(--lt-duration) var(--lt-ease),
    color        var(--lt-duration) var(--lt-ease),
    box-shadow   var(--lt-duration) var(--lt-ease),
    transform    var(--lt-duration-fast) var(--lt-ease),
    opacity      var(--lt-duration);
}

.lt-btn:active:not(:disabled):not(.is-loading) { transform: scale(0.96); }

.lt-btn:disabled,
.lt-btn[disabled] {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

/* Ripple layer */
.lt-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: rgba(255,255,255,0);
  transition: background 300ms;
  pointer-events: none;
}
.lt-btn:hover:not(:disabled)::after  { background: rgba(255,255,255,0.05); }
.lt-btn:active:not(:disabled)::after { background: rgba(255,255,255,0.12); }

/* ── Variants ─────────────────────────────────────────── */

.lt-btn-primary {
  background: var(--lt-accent);
  color: #fff;
  border-color: var(--lt-accent);
}
.lt-btn-primary:hover:not(:disabled) {
  background: #3a7dc2;
  border-color: #3a7dc2;
  box-shadow: 0 4px 16px rgba(77,143,209,0.4);
}

.lt-btn-secondary {
  background: transparent;
  color: var(--lt-accent);
  border-color: var(--lt-accent);
}
.lt-btn-secondary:hover:not(:disabled) {
  background: var(--lt-accent-dim);
  box-shadow: 0 2px 10px rgba(77,143,209,0.2);
}

.lt-btn-ghost {
  background: transparent;
  color: var(--lt-text-muted);
  border-color: var(--lt-border);
}
.lt-btn-ghost:hover:not(:disabled) {
  background: var(--lt-surface-3);
  border-color: var(--lt-border-hover);
  color: var(--lt-text);
}

.lt-btn-danger {
  background: var(--lt-danger);
  color: #fff;
  border-color: var(--lt-danger);
}
.lt-btn-danger:hover:not(:disabled) {
  background: #c85f5f;
  border-color: #c85f5f;
  box-shadow: 0 4px 16px rgba(224,112,112,0.4);
}

.lt-btn-success {
  background: var(--lt-success);
  color: #fff;
  border-color: var(--lt-success);
}
.lt-btn-success:hover:not(:disabled) {
  background: #4da879;
  border-color: #4da879;
  box-shadow: 0 4px 16px rgba(92,184,138,0.4);
}

.lt-btn-warning {
  background: var(--lt-warning);
  color: #fff;
  border-color: var(--lt-warning);
}
.lt-btn-warning:hover:not(:disabled) {
  background: #be8535;
  box-shadow: 0 4px 16px rgba(212,162,87,0.4);
}

/* Danger ghost variant */
.lt-btn-danger-ghost {
  background: transparent;
  color: var(--lt-danger);
  border-color: var(--lt-danger-border);
}
.lt-btn-danger-ghost:hover:not(:disabled) {
  background: var(--lt-danger-dim);
  border-color: var(--lt-danger);
}

/* ── Sizes ────────────────────────────────────────────── */

/* Extra-small — for compact icon actions (e.g. delete in lists) */
.lt-btn-xs {
  font-size: 11px;
  padding: 0.22rem 0.5rem;
  border-radius: var(--lt-radius-sm);
  gap: 0.25rem;
}
.lt-btn-icon.lt-btn-xs { width: 22px; height: 22px; padding: 0.18rem; }

.lt-btn-sm {
  font-size: 11px;
  padding: 0.38rem 0.8rem;
  border-radius: var(--lt-radius-sm);
  gap: 0.35rem;
}

.lt-btn-lg {
  font-size: 15px;
  padding: 0.75rem 1.6rem;
  border-radius: var(--lt-radius-lg);
  gap: 0.55rem;
}

/* ── Icon-only ────────────────────────────────────────── */

.lt-btn-icon {
  padding: 0.58rem;
  width: 36px;
  height: 36px;
}
.lt-btn-icon.lt-btn-sm { width: 28px; height: 28px; padding: 0.32rem; }
.lt-btn-icon.lt-btn-lg { width: 46px; height: 46px; padding: 0.75rem; }

.lt-btn svg { flex-shrink: 0; }

/* ── Loading state ────────────────────────────────────── */

.lt-btn.is-loading {
  pointer-events: none;
  color: transparent !important;
}

.lt-btn.is-loading::before {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: lt-spin 0.65s linear infinite;
}

.lt-btn-secondary.is-loading::before,
.lt-btn-ghost.is-loading::before,
.lt-btn-danger-ghost.is-loading::before {
  border-color: rgba(77,143,209,0.2);
  border-top-color: var(--lt-accent);
}

/* ── Button group ─────────────────────────────────────── */

.lt-btn-group {
  display: inline-flex;
}

.lt-btn-group .lt-btn {
  border-radius: 0;
}

.lt-btn-group .lt-btn:first-child { border-radius: var(--lt-radius) 0 0 var(--lt-radius); }
.lt-btn-group .lt-btn:last-child  { border-radius: 0 var(--lt-radius) var(--lt-radius) 0; }
.lt-btn-group .lt-btn:not(:last-child) { border-right-width: 0; }
.lt-btn-group .lt-btn:hover { z-index: 1; border-right-width: 1px; }

/* ============================================================
   RANGE SLIDER (dual thumb) — gradient-on-track approach
   ============================================================ */

.lt-range-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

/* The track div doubles as the visual range — background set via JS */
.lt-range-slider-wrap {
  position: relative;
  height: 5px;
  border-radius: 99px;
  background: var(--lt-surface-3);
  margin: 11px 0; /* half thumb height — space for thumb above/below */
  width: 100%;
  box-sizing: border-box;
}

/* Both range inputs are overlaid absolutely, transparent except thumb */
.lt-range-thumb {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 0;          /* no height — we only care about the thumb */
  transform: translateY(-50%);
  background: transparent;
  border: none;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  pointer-events: none;
  margin: 0;
  padding: 0;
}

/* Thumb styles */
.lt-range-thumb::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--lt-accent);
  border: 2.5px solid var(--lt-bg);
  pointer-events: all;
  cursor: grab;
  box-shadow: 0 1px 8px rgba(77,143,209,0.5);
  transition: transform 130ms, box-shadow 130ms;
  position: relative;
  z-index: 2;
}

.lt-range-thumb::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 2px 12px rgba(77,143,209,0.6);
}
.lt-range-thumb:active::-webkit-slider-thumb { cursor: grabbing; transform: scale(1.05); }

.lt-range-thumb::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--lt-accent);
  border: 2.5px solid var(--lt-bg);
  cursor: grab;
  box-shadow: 0 1px 8px rgba(77,143,209,0.5);
  pointer-events: all;
}

.lt-range-thumb.lt-range-thumb-max { z-index: 3; }

/* Min/max labels */
.lt-range-minmax {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--lt-text-faint);
  font-family: var(--lt-font-mono);
  margin-top: -2px;
}

/* Text inputs below slider */
.lt-range-inputs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Wrap for individual range text input — gives it the animated underline */
.lt-range-input-box {
  position: relative;
  flex: 1;
  min-width: 0;
}

.lt-range-input-box::before,
.lt-range-input-box::after {
  content: '';
  position: absolute;
  bottom: -1px;
  height: 2px;
  width: 0;
  background: var(--lt-accent);
  border-radius: 0 0 var(--lt-radius) var(--lt-radius);
  transition: width 260ms var(--lt-ease);
  z-index: 2;
  pointer-events: none;
}
.lt-range-input-box::before { left: 50%; }
.lt-range-input-box::after  { right: 50%; }
.lt-range-input-box:focus-within::before,
.lt-range-input-box:focus-within::after {
  width: calc(50% - var(--lt-radius));
}

.lt-range-input-box .lt-range-input {
  width: 100%;
  flex: none; /* flex:1 is on the box, not the input */
}

.lt-range-input {
  flex: 1;
  min-width: 0;
  background: var(--lt-surface-2);
  border: 1px solid var(--lt-border);
  border-radius: var(--lt-radius);
  padding: 0.48rem 0.65rem;
  font-family: var(--lt-font);
  font-size: 13px;
  color: var(--lt-text);
  outline: none;
  text-align: center;
  transition: border-color var(--lt-duration) var(--lt-ease);
  -moz-appearance: textfield;
}

.lt-range-input:focus { border-color: rgba(77,143,209,0.35); }
.lt-range-input::placeholder { color: var(--lt-placeholder); }
.lt-range-input::-webkit-inner-spin-button,
.lt-range-input::-webkit-outer-spin-button { display: none; }

.lt-range-dash { color: var(--lt-text-faint); flex-shrink: 0; font-size: 13px; }

/* Current value display */
.lt-range-current {
  text-align: center;
  font-size: 12px;
  font-family: var(--lt-font-mono);
  font-weight: 600;
  color: var(--lt-accent);
}

/* ── Custom number input with spinner buttons ── */
.lt-number-wrap {
  display: flex;
  align-items: stretch;
  background: var(--lt-surface-2);
  border: 1px solid var(--lt-border);
  border-radius: var(--lt-radius);
  overflow: hidden;
  transition: border-color var(--lt-duration) var(--lt-ease);
}

.lt-number-wrap:focus-within { border-color: rgba(77,143,209,0.35); }

.lt-number-wrap .lt-input {
  border: none;
  border-radius: 0;
  background: transparent;
  flex: 1;
  min-width: 0;
  /* hide native spinners */
  -moz-appearance: textfield;
}
.lt-number-wrap .lt-input::-webkit-inner-spin-button,
.lt-number-wrap .lt-input::-webkit-outer-spin-button { display: none; }
.lt-number-wrap .lt-input:focus { box-shadow: none; border-color: transparent; }

.lt-number-spin {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--lt-border);
  flex-shrink: 0;
}

.lt-number-spin-btn {
  flex: 1;
  width: 26px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--lt-text-faint);
  transition: background var(--lt-duration-fast), color var(--lt-duration-fast);
  padding: 0;
}

.lt-number-spin-btn:not(:last-child) { border-bottom: 1px solid var(--lt-border); }
.lt-number-spin-btn:hover { background: var(--lt-accent-dim); color: var(--lt-accent); }
.lt-number-spin-btn:active { background: var(--lt-accent); color: #fff; }
.lt-number-spin-btn svg { width: 9px; height: 9px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
  .lt-file-zone-inner {
    flex-wrap: wrap;
    padding: 1.25rem;
  }

  .lt-dropdown-panel { max-height: 200px; }
}

@media (max-width: 480px) {
  .lt-file-zone-inner { gap: 0.75rem; }
  .lt-file-btn { width: 100%; text-align: center; }
  .lt-file-previews-grid { grid-template-columns: 1fr !important; }
}