/**
 * MacroBuddyCrunch Component Styles
 * ==================================
 * Reusable component classes.
 * Requires config.css to be loaded first.
 */

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: var(--btn-height-base);
  padding: 0 var(--space-5);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  text-decoration: none;
  border: var(--border-width-thick) solid transparent;
  border-radius: var(--radius-base); /* Square corners */
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-in-out);
  user-select: none;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Primary */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

/* Secondary */
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-primary-light);
}

/* Ghost */
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-border-light);
}

/* Danger */
.btn-danger {
  background: var(--color-danger);
  color: var(--color-text-inverse);
  border-color: var(--color-danger);
}

.btn-danger:hover:not(:disabled) {
  background: #dc2626;
  border-color: #dc2626;
}

.btn-danger:focus-visible {
  box-shadow: var(--shadow-focus-danger);
}

/* Sizes */
.btn-sm {
  height: var(--btn-height-sm);
  padding: 0 var(--space-3);
  font-size: var(--font-size-xs);
}

.btn-lg {
  height: var(--btn-height-lg);
  padding: 0 var(--space-6);
  font-size: var(--font-size-base);
}

/* Icon-only button */
.btn-icon {
  width: var(--btn-height-base);
  padding: 0;
}

.btn-icon.btn-sm {
  width: var(--btn-height-sm);
}

.btn-icon.btn-lg {
  width: var(--btn-height-lg);
}

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

/* Loading state */
.btn-loading {
  position: relative;
  color: transparent;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ==================== */
/* ICON                 */
/* ==================== */

.icon {
  width: var(--icon-size-base);
  height: var(--icon-size-base);
  flex-shrink: 0;
}

.icon-sm {
  width: var(--icon-size-sm);
  height: var(--icon-size-sm);
}

.icon-lg {
  width: var(--icon-size-lg);
  height: var(--icon-size-lg);
}

.icon-xl {
  width: var(--icon-size-xl);
  height: var(--icon-size-xl);
}

/* ==================== */
/* CARDS                */
/* ==================== */

.card {
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.card-clickable {
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.card-clickable:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card-clickable:active {
  transform: translateY(0);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.card-body {
  color: var(--color-text-secondary);
}

.card-footer {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: var(--border-width) solid var(--color-border);
}

/* ==================== */
/* MODAL                */
/* ==================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-base) var(--ease-out),
              visibility var(--duration-base) var(--ease-out);
}

.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 400px;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--duration-base) var(--ease-out);
  z-index: var(--z-modal);
}

.modal-overlay.is-open .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-bottom: var(--border-width) solid var(--color-border);
}

.modal-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-base);
  flex-shrink: 0;
}

.modal-icon.danger {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.modal-icon.warning {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.modal-icon.info {
  background: var(--color-info-light);
  color: var(--color-info);
}

.modal-title {
  flex: 1;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.modal-close {
  margin-left: auto;
}

.modal-body {
  padding: var(--space-4);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4);
  border-top: var(--border-width) solid var(--color-border);
}

/* ==================== */
/* INPUTS               */
/* ==================== */

.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.input-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.input {
  width: 100%;
  height: var(--input-height);
  padding: 0 var(--space-4);
  font-family: var(--font-family);
  font-size: var(--font-size-base); /* Prevents iOS zoom */
  color: var(--color-text);
  background: var(--color-surface);
  border: var(--border-width-thick) solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-in-out),
              box-shadow var(--duration-fast) var(--ease-in-out);
}

.input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

.input:disabled {
  background: var(--color-border-light);
  cursor: not-allowed;
}

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

.input.is-error:focus {
  box-shadow: var(--shadow-focus-danger);
}

.input-error {
  font-size: var(--font-size-sm);
  color: var(--color-danger);
}

.input-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Textarea */
textarea.input {
  height: auto;
  min-height: 100px;
  padding: var(--space-3) var(--space-4);
  resize: vertical;
}

/* Range Slider */
.energy-slider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.slider {
  flex: 1;
  height: 8px;
  background: var(--color-border);
  border-radius: var(--radius-base);
  appearance: none;
  cursor: pointer;
}

.slider::-webkit-slider-thumb {
  appearance: none;
  width: 24px;
  height: 24px;
  background: var(--color-primary);
  border-radius: 50%;
  cursor: grab;
  transition: transform var(--duration-fast) var(--ease-in-out);
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.slider::-webkit-slider-thumb:active {
  cursor: grabbing;
  transform: scale(1.15);
}

.slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  background: var(--color-primary);
  border: none;
  border-radius: 50%;
  cursor: grab;
}

.energy-value {
  min-width: 2rem;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  text-align: center;
  color: var(--color-primary);
}

/* ==================== */
/* BADGES               */
/* ==================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-base);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.badge-pending {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.badge-submitted {
  background: var(--color-info-light);
  color: var(--color-info);
}

.badge-viewed,
.badge-success {
  background: var(--color-success-light);
  color: var(--color-success);
}

.badge-active {
  background: var(--color-success-light);
  color: var(--color-success);
}

.badge-archived {
  background: var(--color-border-light);
  color: var(--color-text-muted);
}

/* ==================== */
/* MACRO DISPLAY        */
/* ==================== */

.macros {
  display: flex;
  gap: var(--space-4);
}

.macro {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.macro-value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

.macro-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.macro-calories .macro-value { color: var(--color-calories); }
.macro-protein .macro-value { color: var(--color-protein); }
.macro-carbs .macro-value { color: var(--color-carbs); }
.macro-fat .macro-value { color: var(--color-fat); }

/* ==================== */
/* PROGRESS BAR         */
/* ==================== */

.progress {
  height: 8px;
  background: var(--color-border);
  border-radius: var(--radius-base);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-base);
  transition: width var(--duration-slow) var(--ease-out);
}

.progress-bar.calories { background: var(--color-calories); }
.progress-bar.protein { background: var(--color-protein); }
.progress-bar.carbs { background: var(--color-carbs); }
.progress-bar.fat { background: var(--color-fat); }
.progress-bar.success { background: var(--color-success); }
.progress-bar.warning { background: var(--color-warning); }
.progress-bar.danger { background: var(--color-danger); }

/* ==================== */
/* EMPTY STATE          */
/* ==================== */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-4);
  text-align: center;
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
  opacity: 0.5;
}

.empty-state-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.empty-state-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  max-width: 300px;
}

/* ==================== */
/* SKELETON LOADING     */
/* ==================== */

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-border-light) 0%,
    var(--color-border) 50%,
    var(--color-border-light) 100%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-base);
}

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

.skeleton-text {
  height: 1em;
  margin-bottom: var(--space-2);
}

.skeleton-title {
  height: 1.5em;
  width: 60%;
  margin-bottom: var(--space-3);
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

/* ==================== */
/* WORKOUT EXECUTION    */
/* ==================== */

.exercise-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.exercise-card {
  background: var(--color-surface);
  border: var(--border-width-base) solid var(--color-border);
  border-radius: var(--radius-base);
  overflow: hidden;
}

.exercise-card.completed {
  background: var(--color-success-light);
  border-color: var(--color-success);
}

.exercise-card.expanded .exercise-toggle {
  transform: rotate(180deg);
}

.exercise-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  cursor: pointer;
}

.exercise-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: var(--font-weight-bold);
  border-radius: 50%;
  flex-shrink: 0;
}

.exercise-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.exercise-name {
  font-weight: var(--font-weight-semibold);
}

.exercise-details {
  font-size: var(--font-size-sm);
}

.exercise-prev {
  font-size: var(--font-size-xs);
  font-style: italic;
}

.exercise-toggle {
  transition: transform var(--duration-fast) var(--ease-in-out);
  color: var(--color-text-muted);
}

.exercise-body {
  padding: 0 var(--space-4) var(--space-4);
  border-top: var(--border-width-base) solid var(--color-border);
}

.exercise-body.hidden {
  display: none;
}

.exercise-notes {
  padding: var(--space-3);
  margin-bottom: var(--space-3);
  background: var(--color-bg);
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm);
}

.set-log-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.set-log-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  background: var(--color-bg);
  border-radius: var(--radius-base);
}

.set-log-row.completed {
  background: var(--color-success-light);
}

.set-number {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  min-width: 50px;
}

.set-inputs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
}

.input-sm {
  height: 36px;
  width: 70px;
  padding: 0 var(--space-2);
  text-align: center;
}

.input-separator {
  color: var(--color-text-muted);
}

.set-done {
  flex-shrink: 0;
}

.set-done:disabled {
  background: var(--color-success);
  color: white;
  opacity: 1;
}

/* Rest Timer */
.rest-timer {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.rest-timer.hidden {
  display: none;
}

.timer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  color: white;
  text-align: center;
}

.timer-label {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.timer-display {
  font-size: 5rem;
  font-weight: var(--font-weight-bold);
  font-variant-numeric: tabular-nums;
}

.timer-controls {
  margin-top: var(--space-4);
}

.workout-actions {
  position: sticky;
  bottom: calc(var(--nav-height) + var(--space-4));
  padding: var(--space-4) 0;
  background: linear-gradient(to top, var(--color-bg) 80%, transparent);
}

/* ==================== */
/* PHOTOS               */
/* ==================== */

.photos-section {
  margin-top: var(--space-6);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
}

.photo-upload-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding: var(--space-4);
  background: var(--color-surface);
  border: var(--border-width-base) solid var(--color-border);
  border-radius: var(--radius-base);
}

.photo-upload-label {
  cursor: pointer;
}

.photo-input {
  display: none;
}

.photo-upload-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: var(--border-width-thick) dashed var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-in-out);
}

.photo-upload-btn:hover {
  border-color: var(--color-primary);
}

.photo-upload-form .input {
  flex: 1;
  min-width: 150px;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--space-3);
}

.photo-thumb {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-base);
  overflow: hidden;
}

.photo-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-date {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-1) var(--space-2);
  background: rgba(0, 0, 0, 0.7);
  color: white;
  font-size: var(--font-size-xs);
  text-align: center;
}

.photo-preview {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: var(--space-3);
}

.photo-preview-img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-base);
}

/* ==================== */
/* PWA UPDATE BANNER    */
/* ==================== */

.update-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-text);
  color: var(--color-text-inverse);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  z-index: var(--z-toast);
  transform: translateY(-100%);
  transition: transform var(--duration-base) var(--ease-out);
}

.update-banner.visible {
  transform: translateY(0);
}

.update-banner .btn {
  height: 32px;
  padding: 0 var(--space-3);
  font-size: var(--font-size-xs);
}

.update-banner .btn-ghost {
  color: var(--color-text-inverse);
}

.update-banner .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ==================== */
/* LANGUAGE SWITCHER    */
/* ==================== */

.lang-switch {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
}

.lang-switch-active {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.lang-switch-sep {
  color: var(--color-text-muted);
}

.lang-switch-link {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-in-out);
}

.lang-switch-link:hover {
  color: var(--color-primary);
}

/* ==================== */
/* TABS                 */
/* ==================== */

.tabs {
  display: flex;
  gap: var(--space-2);
  border-bottom: var(--border-width) solid var(--color-border);
  padding-bottom: var(--space-1);
}

.tab {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: var(--radius-base);
  transition: color var(--duration-fast) var(--ease-in-out),
              background var(--duration-fast) var(--ease-in-out);
}

.tab:hover {
  color: var(--color-text);
  background: var(--color-border-light);
}

.tab.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.tab-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 var(--space-1);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  background: var(--color-border-light);
  border-radius: var(--radius-base);
}

.tab.active .tab-count {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

/* ==================== */
/* INGREDIENT LIBRARY   */
/* ==================== */

.ingredient-grid,
.recipe-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

.ingredient-card,
.recipe-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.ingredient-header,
.recipe-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-2);
}

.ingredient-name,
.recipe-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin: 0;
  word-break: break-word;
}

.ingredient-actions,
.recipe-actions {
  display: flex;
  gap: var(--space-1);
  flex-shrink: 0;
}

.ingredient-macros {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.macro-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.macro-value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

.macro-value.calories { color: var(--color-calories); }
.macro-value.protein { color: var(--color-protein); }
.macro-value.carbs { color: var(--color-carbs); }
.macro-value.fat { color: var(--color-fat); }

.macro-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.ingredient-per {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-align: right;
}

.recipe-ingredients {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.recipe-macros {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding-top: var(--space-2);
  border-top: var(--border-width) solid var(--color-border-light);
}

.text-muted {
  color: var(--color-text-muted);
}

/* ==================== */
/* SEARCH BOX           */
/* ==================== */

.search-box {
  display: flex;
  gap: var(--space-2);
}