/* ============================================
   LINUS — Components
   Cards, buttons, badges, inputs, checkboxes,
   toggles, progress, modals
   ============================================ */

/* =============================================
   CARDS
   ============================================= */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition:
    transform var(--transition-normal),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card:active {
  transform: scale(0.98);
  box-shadow: var(--shadow-xs);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-border);
}

/* Role accent — left border + soft tint */
.card--mae {
  border-left: 3px solid var(--color-mae);
}
.card--mae::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-mae-light) 0%, transparent 40%);
  pointer-events: none;
  opacity: 0.5;
}

.card--business {
  border-left: 3px solid var(--color-business);
}
.card--business::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-business-light) 0%, transparent 40%);
  pointer-events: none;
  opacity: 0.5;
}

.card--personal {
  border-left: 3px solid var(--color-personal);
}
.card--personal::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-personal-light) 0%, transparent 40%);
  pointer-events: none;
  opacity: 0.5;
}

.card--finance {
  border-left: 3px solid var(--color-finance);
}
.card--finance::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-finance-light) 0%, transparent 40%);
  pointer-events: none;
  opacity: 0.5;
}

.card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.card__title {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
}

.card__subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.card__body {
  position: relative;
  z-index: 1;
}

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  min-height: var(--touch-target);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.01em;
  white-space: nowrap;
  cursor: pointer;
  border: none;
  outline: none;
  position: relative;
  overflow: hidden;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast),
    color var(--transition-fast),
    opacity var(--transition-fast);
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

/* Ripple-like overlay on press */
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--transition-fast);
  border-radius: inherit;
}

.btn:active::after {
  opacity: 0.08;
}

.btn:active {
  transform: scale(0.96);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn:disabled::after {
  display: none;
}

/* Primary: gradient from linus colors */
.btn--primary {
  background: linear-gradient(135deg, var(--color-linus-1) 0%, var(--color-linus-2) 100%);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm), 0 2px 8px rgba(184, 169, 201, 0.3);
}

.btn--primary:hover {
  box-shadow: var(--shadow-md), 0 4px 16px rgba(184, 169, 201, 0.4);
}

.btn--primary:active {
  box-shadow: var(--shadow-xs);
}

/* Secondary: outlined */
.btn--secondary {
  background: var(--bg-card);
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-xs);
}

.btn--secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--color-text-muted);
}

/* Ghost: transparent */
.btn--ghost {
  background: transparent;
  color: var(--color-text-secondary);
  padding: var(--space-sm) var(--space-md);
}

.btn--ghost:hover {
  background: var(--bg-card-hover);
  color: var(--color-text);
}

/* Icon button: square circle */
.btn--icon {
  width: var(--touch-target);
  height: var(--touch-target);
  padding: 0;
  border-radius: var(--radius-full);
  font-size: var(--text-lg);
  background: var(--bg-card);
  color: var(--color-text-secondary);
  box-shadow: var(--shadow-sm);
}

.btn--icon:hover {
  background: var(--bg-card-hover);
  color: var(--color-text);
  box-shadow: var(--shadow-md);
}

/* Size variants */
.btn--sm {
  min-height: 36px;
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-xs);
}

.btn--lg {
  min-height: 52px;
  padding: var(--space-lg) var(--space-2xl);
  font-size: var(--text-md);
  border-radius: var(--radius-lg);
}

/* Full-width */
.btn--block {
  width: 100%;
}

/* =============================================
   BADGES
   ============================================= */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 2px var(--space-sm);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.02em;
  white-space: nowrap;
  line-height: 1.6;
  transition: transform var(--transition-fast);
}

.badge:active {
  transform: scale(0.92);
}

/* Role badges */
.badge--mae {
  background: var(--color-mae-light);
  color: var(--color-mae-dark);
}

.badge--business {
  background: var(--color-business-light);
  color: var(--color-business-dark);
}

.badge--personal {
  background: var(--color-personal-light);
  color: var(--color-personal-dark);
}

.badge--finance {
  background: var(--color-finance-light);
  color: var(--color-finance-dark);
}

/* Priority badges */
.badge--priority-high {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.badge--priority-medium {
  background: var(--color-warning-light);
  color: #E6A23C;
}

.badge--priority-low {
  background: var(--color-success-light);
  color: #4CAF50;
}

/* Count badge (small circle) */
.badge--count {
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  font-size: 10px;
  font-weight: var(--weight-bold);
  background: var(--color-linus-1);
  color: var(--color-text-inverse);
}

/* =============================================
   INPUTS
   ============================================= */
.input {
  width: 100%;
  min-height: var(--touch-target);
  padding: var(--space-md) var(--space-lg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  font-size: var(--text-base);
  color: var(--color-text);
  transition:
    border-color var(--transition-normal),
    box-shadow var(--transition-normal),
    background-color var(--transition-normal);
  -webkit-appearance: none;
  appearance: none;
}

.input:focus {
  border-color: var(--color-linus-1);
  box-shadow: 0 0 0 3px rgba(184, 169, 201, 0.15);
  background: var(--bg-card);
}

.input:hover:not(:focus) {
  border-color: var(--color-text-muted);
}

.input::placeholder {
  color: var(--color-text-muted);
  font-weight: var(--weight-regular);
}

.input--error {
  border-color: var(--color-danger);
}

.input--error:focus {
  box-shadow: 0 0 0 3px rgba(229, 115, 115, 0.15);
}

/* Input group — icon + input */
.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-group__icon {
  position: absolute;
  left: var(--space-lg);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  pointer-events: none;
  transition: color var(--transition-normal);
  z-index: 1;
}

.input-group .input {
  padding-left: calc(var(--space-lg) + var(--text-lg) + var(--space-sm));
}

.input-group:focus-within .input-group__icon {
  color: var(--color-linus-1);
}

.input-group__action {
  position: absolute;
  right: var(--space-xs);
}

/* =============================================
   CHECKBOX
   ============================================= */
.checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  min-height: var(--touch-target);
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.checkbox__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox__box {
  position: relative;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-spring);
}

/* Animated checkmark SVG line */
.checkbox__box::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 6px;
  width: 6px;
  height: 11px;
  border: 2px solid var(--color-text-inverse);
  border-top: none;
  border-left: none;
  transform: rotate(45deg) scale(0);
  transform-origin: bottom center;
  transition: transform var(--transition-spring);
  opacity: 0;
}

.checkbox__input:checked + .checkbox__box {
  background: linear-gradient(135deg, var(--color-linus-1), var(--color-linus-2));
  border-color: transparent;
  animation: checkboxBounce 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.checkbox__input:checked + .checkbox__box::after {
  transform: rotate(45deg) scale(1);
  opacity: 1;
}

.checkbox__label {
  font-size: var(--text-base);
  color: var(--color-text);
  transition: color var(--transition-normal), opacity var(--transition-normal);
}

.checkbox__input:checked ~ .checkbox__label {
  color: var(--color-text-muted);
  text-decoration: line-through;
  text-decoration-color: var(--color-text-muted);
}

@keyframes checkboxBounce {
  0% { transform: scale(1); }
  30% { transform: scale(1.25); }
  50% { transform: scale(0.9); }
  70% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

/* Role-colored checkboxes */
.checkbox--mae .checkbox__input:checked + .checkbox__box {
  background: var(--color-mae);
}

.checkbox--business .checkbox__input:checked + .checkbox__box {
  background: var(--color-business);
}

.checkbox--personal .checkbox__input:checked + .checkbox__box {
  background: var(--color-personal);
}

/* =============================================
   TOGGLE GROUP
   ============================================= */
.toggle-group {
  display: flex;
  background: var(--bg-card-hover);
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 2px;
  position: relative;
}

.toggle-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  transition:
    color var(--transition-normal),
    background-color var(--transition-normal),
    box-shadow var(--transition-normal),
    transform var(--transition-fast);
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}

.toggle-btn:active {
  transform: scale(0.96);
}

.toggle-btn.active {
  background: var(--bg-card);
  color: var(--color-text);
  font-weight: var(--weight-semibold);
  box-shadow: var(--shadow-sm);
}

/* =============================================
   PROGRESS BAR
   ============================================= */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-border-light);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-bar__fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--color-linus-1), var(--color-linus-2));
  transition: width 600ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
}

/* Shimmer animation on fill */
.progress-bar__fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.3) 50%,
    transparent 100%
  );
  animation: progressShimmer 2s ease-in-out infinite;
}

@keyframes progressShimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* Color variants */
.progress-bar--mae .progress-bar__fill {
  background: linear-gradient(90deg, var(--color-mae), var(--color-mae-dark));
}

.progress-bar--business .progress-bar__fill {
  background: linear-gradient(90deg, var(--color-business), var(--color-business-dark));
}

.progress-bar--personal .progress-bar__fill {
  background: linear-gradient(90deg, var(--color-personal), var(--color-personal-dark));
}

.progress-bar--finance .progress-bar__fill {
  background: linear-gradient(90deg, var(--color-finance), var(--color-finance-dark));
}

/* Slim variant */
.progress-bar--slim {
  height: 4px;
}

/* =============================================
   PROGRESS RING (SVG Circle)
   ============================================= */
.progress-ring {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.progress-ring__svg {
  transform: rotate(-90deg);
}

.progress-ring__bg {
  fill: none;
  stroke: var(--color-border-light);
  stroke-width: 6;
}

.progress-ring__fill {
  fill: none;
  stroke: var(--color-linus-1);
  stroke-width: 6;
  stroke-linecap: round;
  transition: stroke-dashoffset 800ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.progress-ring__text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.progress-ring__value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  line-height: 1;
}

.progress-ring__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* Ring color variants */
.progress-ring--mae .progress-ring__fill { stroke: var(--color-mae); }
.progress-ring--business .progress-ring__fill { stroke: var(--color-business); }
.progress-ring--personal .progress-ring__fill { stroke: var(--color-personal); }
.progress-ring--finance .progress-ring__fill { stroke: var(--color-finance); }

/* =============================================
   MODAL
   ============================================= */
.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: var(--z-modal);
  padding: 0;
  visibility: hidden;
  pointer-events: none;
}

.modal.active {
  visibility: visible;
  pointer-events: auto;
}

/* Backdrop */
.modal__backdrop {
  position: absolute;
  inset: 0;
  background: var(--bg-overlay);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.modal.active .modal__backdrop {
  opacity: 1;
}

/* Content: slide-up sheet style */
.modal__content {
  position: relative;
  width: 100%;
  max-width: var(--container-max);
  max-height: 85vh;
  background: var(--bg-card);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: var(--space-lg) var(--space-lg) calc(var(--space-2xl) + var(--safe-bottom));
  box-shadow: var(--shadow-xl);
  transform: translateY(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  z-index: 1;
}

.modal.active .modal__content {
  transform: translateY(0);
}

/* Drag handle */
.modal__handle {
  width: 36px;
  height: 4px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  margin: 0 auto var(--space-lg);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.modal__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
}

.modal__close {
  width: var(--touch-target);
  height: var(--touch-target);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.modal__close:active {
  background: var(--bg-card-hover);
}

.modal__body {
  margin-bottom: var(--space-lg);
}

.modal__footer {
  display: flex;
  gap: var(--space-md);
}

.modal__footer .btn {
  flex: 1;
}

/* =============================================
   DIVIDER
   ============================================= */
.divider {
  width: 100%;
  height: 1px;
  background: var(--color-border-light);
  margin: var(--space-lg) 0;
}

/* =============================================
   SKELETON LOADING
   ============================================= */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-border-light) 25%,
    var(--bg-card-hover) 50%,
    var(--color-border-light) 75%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

.skeleton--text {
  height: 14px;
  margin-bottom: var(--space-sm);
}

.skeleton--title {
  height: 20px;
  width: 60%;
  margin-bottom: var(--space-md);
}

.skeleton--circle {
  border-radius: var(--radius-full);
}

@keyframes skeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}