/* ========================================
   PEGAS BLADE SELECTOR - styles.css
   Design System Pegas (R)
   Version: 1.0
   Build: SCIES-2025-PROD-X7K9P2
   Licensed to: Scies Miniatures Sarl
   ======================================== */

/* --- 1. CSS Variables (Design Tokens) --- */
:root {
  /* Couleurs principales */
  --color-primary: #E31E24;
  --color-primary-dark: #B71419;
  --color-primary-light: #FFF5F5;
  --color-primary-gradient: linear-gradient(135deg, #E31E24, #B71419);
  --color-primary-shadow: rgba(227, 30, 36, 0.3);

  /* Couleurs neutres */
  --color-text: #1A1A1A;
  --color-text-secondary: #666666;
  --color-background: #F8F6F3;
  --color-background-gradient: linear-gradient(135deg, #F8F6F3 0%, #E8E6E3 100%);
  --color-border: #E8E6E3;
  --color-white: #FFFFFF;

  /* Couleurs semantiques */
  --color-success: #4CAF50;
  --color-warning: #FF9800;
  --color-error: #DC3545;
  --color-info: #2196F3;

  /* Couleurs familles de lames */
  --color-family-skip: #E31E24;
  --color-family-super-skip: #2196F3;
  --color-family-double-skip: #795548;
  --color-family-mgt: #4CAF50;
  --color-family-skip-reverse: #607D8B;
  --color-family-double-reverse: #009688;
  --color-family-super-hook: #FF5722;
  --color-family-spiral: #9C27B0;
  --color-family-metal-cutting: #FF9800;
  --color-family-regular: #9E9E9E;
  --color-family-hook: #3F51B5;

  /* Typographie */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Tailles typographiques */
  --font-size-h1: 2rem;        /* 32px */
  --font-size-h2: 1.5rem;      /* 24px */
  --font-size-h3: 1.25rem;     /* 20px */
  --font-size-h4: 1.125rem;    /* 18px */
  --font-size-body-lg: 1rem;   /* 16px */
  --font-size-body: 0.9375rem; /* 15px */
  --font-size-body-sm: 0.875rem; /* 14px */
  --font-size-caption: 0.75rem;  /* 12px */

  /* Line heights */
  --line-height-tight: 1.2;
  --line-height-snug: 1.3;
  --line-height-normal: 1.4;
  --line-height-relaxed: 1.5;
  --line-height-loose: 1.6;

  /* Espacements (grille 8px) */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-base: 16px;
  --spacing-lg: 20px;
  --spacing-xl: 24px;
  --spacing-2xl: 30px;
  --spacing-3xl: 32px;
  --spacing-4xl: 40px;
  --spacing-5xl: 48px;

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 20px;
  --radius-round: 50%;

  /* Ombres */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.12);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-index */
  --z-dropdown: 100;
  --z-modal-backdrop: 200;
  --z-modal: 300;
  --z-toast: 400;
  --z-lightbox: 500;

  /* Container */
  --container-max: 1400px;
  --container-padding: 20px;
}


/* --- 2. Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-loose);
  color: var(--color-text);
  background: var(--color-background-gradient);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  color: var(--color-primary-dark);
}


/* --- 3. Typography --- */
h1, .h1 {
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
}

h2, .h2 {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-snug);
  color: var(--color-text);
}

h3, .h3 {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-normal);
  color: var(--color-text);
}

h4, .h4 {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-normal);
  color: var(--color-text);
}

.text-body-lg {
  font-size: var(--font-size-body-lg);
  line-height: var(--line-height-loose);
}

.text-body {
  font-size: var(--font-size-body);
  line-height: var(--line-height-loose);
}

.text-small {
  font-size: var(--font-size-body-sm);
  line-height: var(--line-height-relaxed);
}

.text-caption {
  font-size: var(--font-size-caption);
  line-height: var(--line-height-normal);
}

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

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


/* --- 4. Layout --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.app-wrapper {
  padding: var(--spacing-4xl) var(--spacing-lg);
}


/* --- 5. Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-primary-gradient);
  color: var(--color-white);
  box-shadow: 0 4px 12px var(--color-primary-shadow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(227, 30, 36, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px var(--color-primary-shadow);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

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

.btn-danger {
  background: var(--color-white);
  color: var(--color-error);
  border: 2px solid var(--color-error);
}

.btn-danger:hover {
  background: #FFF0F0;
}

.btn-sm {
  padding: 10px 16px;
  font-size: var(--font-size-body-sm);
  border-radius: var(--radius-sm);
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-sm);
}

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


/* --- 6. Cards --- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

/* Blade Product Card */
.blade-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.blade-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.blade-card__image {
  background: linear-gradient(135deg, var(--color-background), var(--color-border));
  padding: var(--spacing-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  position: relative;
  overflow: hidden;
}

.blade-card__image img {
  max-width: 100%;
  max-height: 140px;
  object-fit: contain;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

/* Image loading states */
.blade-card__image img.image-loading,
.modal-header__image img.image-loading {
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.blade-card__image img.image-loaded,
.modal-header__image img.image-loaded {
  opacity: 1;
}

.image-placeholder {
  font-size: 32px;
  opacity: 0.3;
  user-select: none;
}

.blade-card__content {
  padding: var(--spacing-xl);
}

.blade-card__name-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 2px;
}

.pegas-logo-inline {
  width: 50px;
  height: auto;
  flex-shrink: 0;
  shape-rendering: geometricPrecision;
  image-rendering: optimizeQuality;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

.blade-card__reference {
  font-size: 22px;
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin: 0;
}

.blade-card__article {
  font-size: 13px;
  color: var(--color-text-light, #888);
  margin: 0 0 var(--spacing-sm) 0;
  padding-left: 58px;
  font-weight: var(--font-weight-normal, 400);
}

.blade-card__specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin: var(--spacing-base) 0;
  padding: var(--spacing-base);
  background: var(--color-background);
  border-radius: var(--radius-sm);
}

.blade-card__spec {
  font-size: 13px;
}

.blade-card__spec-label {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  display: block;
  margin-bottom: 2px;
}

.blade-card__spec-value {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-body);
}

.blade-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-base);
}

.blade-card__optimal {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  font-size: var(--font-size-body-sm);
  color: var(--color-text-secondary);
}

.blade-card__optimal-value {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.blade-card__actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.blade-card__actions .btn-sm {
  flex: 1;
}

.blade-card__view-range {
  display: block;
  width: 100%;
  margin-top: var(--spacing-base);
  padding: var(--spacing-md) var(--spacing-base);
  background: transparent;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-normal);
}

.blade-card__view-range:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}


/* --- 7. Badges --- */
/* Family badge */
.badge-family {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1;
}

/* Badge position on card */
.blade-card__image .badge-family {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
}

/* Best choice badge */
.badge-best-choice {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-semibold);
  color: var(--color-white);
  background: var(--color-primary-gradient);
  box-shadow: 0 2px 8px var(--color-primary-shadow);
  line-height: 1;
}

.blade-card__image .badge-best-choice {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
}

/* Pinned badge */
.badge-pinned {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: var(--font-weight-medium);
  color: var(--color-warning);
  background: rgba(255, 152, 0, 0.1);
  border: 1px solid rgba(255, 152, 0, 0.3);
}

/* Material tags */
.tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-medium);
  line-height: 1;
}

.tag-primary {
  background: var(--color-primary-gradient);
  color: var(--color-white);
}

.tag-outline {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.tag-material {
  background: #8B6914;
  color: var(--color-white);
}


/* --- 8. Filter Bar --- */
.filter-bar {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-card);
  margin-bottom: var(--spacing-xl);
  position: sticky;
  top: 72px;
  z-index: 99;
  transition: transform var(--transition-normal), opacity var(--transition-normal), box-shadow var(--transition-normal);
  will-change: transform, opacity;
}

.filter-bar--sticky {
  box-shadow: var(--shadow-lg);
}

.filter-bar--hidden {
  transform: translateY(-120%);
  opacity: 0;
  pointer-events: none;
}

.filter-bar__row {
  display: flex;
  gap: var(--spacing-base);
  flex-wrap: wrap;
  align-items: center;
}

.filter-bar__group {
  flex: 1;
  min-width: 180px;
}

.filter-bar__label {
  display: block;
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
}

.filter-bar__select {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-base);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-body);
  background: var(--color-white);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-normal);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.filter-bar__select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(227, 30, 36, 0.1);
}

.filter-bar__controls {
  display: flex;
  align-items: flex-end;
  gap: var(--spacing-md);
}

/* Active filter chips */
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-base);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border: 1px solid rgba(227, 30, 36, 0.2);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-medium);
}

.filter-chip__remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: none;
  background: none;
  color: var(--color-primary);
  font-size: 14px;
  cursor: pointer;
  border-radius: var(--radius-round);
  transition: background var(--transition-fast);
  padding: 0;
  line-height: 1;
}

.filter-chip__remove:hover {
  background: rgba(227, 30, 36, 0.15);
}

.filter-chips:empty {
  display: none;
}

/* Toggle filtres mobile (caché par défaut sur desktop) */
.filter-bar__toggle {
  display: none;
}


/* --- 9. Results Info --- */
.results-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  padding: 0 var(--spacing-xs);
}

.results-info__count {
  font-size: var(--font-size-body);
  color: var(--color-text-secondary);
}

.results-info__count strong {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}

.results-info__sort {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}


/* --- 10. Blades Grid --- */
.blades-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--spacing-lg);
}


/* --- 11. Unit Toggle (mm/inch) --- */
.unit-toggle {
  display: inline-flex;
  background: var(--color-background);
  border-radius: var(--radius-sm);
  padding: 3px;
  border: 2px solid var(--color-border);
}

.unit-toggle__option {
  padding: 8px 16px;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  border-radius: 6px;
  transition: all var(--transition-fast);
  line-height: 1;
}

.unit-toggle__option--active {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  font-weight: var(--font-weight-semibold);
}


/* --- 12. Language Selector --- */
.lang-selector {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.lang-selector__btn {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid transparent;
  background: transparent;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0;
}

.lang-selector__btn:hover {
  background: var(--color-background);
}

.lang-selector__btn--active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
  font-weight: var(--font-weight-semibold);
}


/* --- 13. Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal-backdrop);
  padding: var(--spacing-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.modal-content {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  z-index: var(--z-modal);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-overlay--visible .modal-content {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl) var(--spacing-xl) 0;
}

.modal-header__image {
  width: 80px;
  height: 80px;
  background: var(--color-background);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  cursor: pointer;
}

.modal-header__image img {
  max-width: 60px;
  max-height: 60px;
  object-fit: contain;
}

.modal-header__info h2 {
  margin-bottom: var(--spacing-xs);
}

.modal-close {
  position: absolute;
  top: var(--spacing-base);
  right: var(--spacing-base);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: var(--color-background);
  border-radius: var(--radius-round);
  font-size: 20px;
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-border);
  color: var(--color-text);
}

.modal-body {
  padding: var(--spacing-xl);
}

.modal-section {
  margin-top: var(--spacing-xl);
}

.modal-section__title {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-base);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-border);
}

/* Range comparison table */
.range-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-body-sm);
}

.range-table th {
  background: var(--color-background);
  padding: var(--spacing-md) var(--spacing-base);
  text-align: left;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  font-size: var(--font-size-caption);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid var(--color-border);
}

.range-table td {
  padding: var(--spacing-md) var(--spacing-base);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.range-table tr:last-child td {
  border-bottom: none;
}

.range-table__row--current {
  background: var(--color-primary-light);
  font-weight: var(--font-weight-semibold);
}

.range-table__row--current td:first-child {
  border-left: 3px solid var(--color-primary);
}

.range-table__name {
  white-space: nowrap;
  font-weight: 700;
}

.range-table__article {
  display: block;
  margin-left: 0;
  margin-top: 2px;
  font-size: var(--font-size-caption);
  color: var(--color-text-secondary);
}

/* --- Scroll fade indicators (range table) --- */
.range-table-container {
  position: relative;
}

.range-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.range-table-container .scroll-fade-left,
.range-table-container .scroll-fade-right {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 40px;
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.range-table-container .scroll-fade-left {
  left: 0;
  background: linear-gradient(to right, rgba(255,255,255,1), rgba(255,255,255,0));
}

.range-table-container .scroll-fade-right {
  right: 0;
  background: linear-gradient(to left, rgba(255,255,255,1), rgba(255,255,255,0));
}

.range-table-container .scroll-fade-left.visible {
  opacity: 1;
}

.range-table-container .scroll-fade-right.visible {
  opacity: 1;
}


/* --- Image Lightbox --- */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-lightbox);
  padding: var(--spacing-xl);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  cursor: zoom-out;
}

.lightbox-overlay--visible {
  opacity: 1;
  visibility: visible;
}

.lightbox-image {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.5);
  cursor: default;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.lightbox-overlay--visible .lightbox-image {
  transform: scale(1);
}

.lightbox-close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-round);
  font-size: 24px;
  cursor: pointer;
  color: var(--color-white);
  transition: background var(--transition-fast);
  z-index: 1;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.3);
}


/* --- 14. Header & Footer (standalone PWA) --- */
.app-header {
  background: var(--color-white);
  padding: var(--spacing-base) var(--spacing-xl);
  padding-top: max(var(--spacing-base), env(safe-area-inset-top));
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-dropdown);
}

.app-header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-base);
}

.app-header__brand {
  display: flex;
  align-items: center;
  gap: 0;
}

.app-header__logo-wrap {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.app-header__logo-wrap:hover {
  opacity: 0.8;
}

.app-header__logo-wrap:active {
  opacity: 0.6;
}

.pegas-logo-header {
  width: 96px;
  height: auto;
  shape-rendering: geometricPrecision;
}

.app-header__separator {
  display: inline-block;
  width: 38px; /* ~40% of 96px logo width */
  flex-shrink: 0;
}

.app-header__title {
  font-size: 1.4rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.app-header__controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-base);
}

.app-footer {
  background: var(--color-white);
  padding: var(--spacing-xl);
  margin-top: var(--spacing-4xl);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.app-footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  font-size: var(--font-size-body-sm);
  color: var(--color-text-secondary);
}

.app-footer__offline {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 4px 12px;
  background: var(--color-warning);
  color: var(--color-white);
  border-radius: var(--radius-pill);
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-medium);
}


/* --- 15. Forms --- */
.form-section {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-card);
  margin-bottom: var(--spacing-xl);
}

.form-section__title {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-border);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-body-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.form-label .required {
  color: var(--color-primary);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 14px var(--spacing-base);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-body);
  color: var(--color-text);
  background: var(--color-white);
  transition: all var(--transition-normal);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(227, 30, 36, 0.1);
}

.form-input--error,
.form-select--error {
  border-color: var(--color-error);
}

.form-input--error:focus {
  box-shadow: 0 0 0 4px rgba(220, 53, 69, 0.1);
}

.form-input--auto {
  background: var(--color-background);
  color: var(--color-text-secondary);
  font-style: italic;
}

.form-help {
  display: block;
  font-size: var(--font-size-caption);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
}

.form-error {
  display: block;
  font-size: var(--font-size-caption);
  color: var(--color-error);
  margin-top: var(--spacing-xs);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-base);
}

.form-textarea {
  min-height: 80px;
  resize: vertical;
}

/* Checkbox & Radio groups */
.form-check-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  padding: var(--spacing-base);
  background: var(--color-background);
  border-radius: var(--radius-sm);
}

.form-check {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  font-size: var(--font-size-body-sm);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* Form actions */
.form-actions {
  display: flex;
  gap: var(--spacing-base);
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
}

.form-actions .btn {
  flex: 1;
}


/* --- 16. Loading & Empty States --- */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-5xl);
  color: var(--color-text-secondary);
}

.loading__spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-round);
  animation: spin 0.8s linear infinite;
  margin-bottom: var(--spacing-base);
}

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

.empty-state {
  text-align: center;
  padding: var(--spacing-5xl) var(--spacing-xl);
  color: var(--color-text-secondary);
}

.empty-state__icon {
  font-size: 48px;
  margin-bottom: var(--spacing-base);
}

.empty-state__title {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.empty-state__message {
  font-size: var(--font-size-body);
  margin-bottom: var(--spacing-xl);
}


/* --- 17. Stat Cards --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-base);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.stat-card__value {
  font-size: 36px;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-card__label {
  font-size: var(--font-size-body-sm);
  color: var(--color-text-secondary);
}


/* --- 18. Search Box --- */
.search-box {
  position: relative;
  flex: 1;
  min-width: 280px;
}

.search-box__input {
  width: 100%;
  padding: 14px var(--spacing-5xl) 14px var(--spacing-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-body);
  transition: all var(--transition-normal);
}

.search-box__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(227, 30, 36, 0.1);
}

.search-box__icon {
  position: absolute;
  right: var(--spacing-base);
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--color-text-secondary);
  pointer-events: none;
}


/* --- 19. Toolbar --- */
.toolbar {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  margin-bottom: var(--spacing-xl);
  display: flex;
  gap: var(--spacing-base);
  flex-wrap: wrap;
  align-items: center;
}


/* --- 20. Toast Notifications --- */
.toast {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  padding: var(--spacing-base) var(--spacing-xl);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-weight: var(--font-weight-medium);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-toast);
  animation: slideUp 0.3s ease-out;
  max-width: 400px;
}

.toast--success { background: var(--color-success); }
.toast--error   { background: var(--color-error); }
.toast--warning { background: var(--color-warning); }
.toast--info    { background: var(--color-info); }


/* --- 21. Utilities --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden { display: none !important; }
.invisible { visibility: hidden; }

.text-center { text-align: center; }
.text-right { text-align: right; }

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-base { margin-top: var(--spacing-base); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-base { margin-bottom: var(--spacing-base); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }


/* --- 22. Animations --- */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.animate-fade-in {
  animation: fadeIn 0.4s ease-out both;
}

.animate-slide-up {
  animation: slideUp 0.3s ease-out both;
}

/* Staggered card animations */
.blade-card:nth-child(1) { animation-delay: 0ms; }
.blade-card:nth-child(2) { animation-delay: 50ms; }
.blade-card:nth-child(3) { animation-delay: 100ms; }
.blade-card:nth-child(4) { animation-delay: 150ms; }
.blade-card:nth-child(5) { animation-delay: 200ms; }
.blade-card:nth-child(6) { animation-delay: 250ms; }
.blade-card:nth-child(7) { animation-delay: 300ms; }
.blade-card:nth-child(8) { animation-delay: 350ms; }
.blade-card:nth-child(9) { animation-delay: 400ms; }


/* --- 23. Responsive --- */
@media (max-width: 1024px) {
  .blades-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-base);
  }

  .filter-bar__row {
    flex-wrap: wrap;
  }

  .filter-bar__group {
    min-width: 45%;
    flex: 1 1 45%;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-h1: 1.75rem;   /* 28px */
    --font-size-h2: 1.375rem;  /* 22px */
  }

  .app-wrapper {
    padding: var(--spacing-xl) var(--spacing-base);
  }

  .app-header__inner {
    flex-wrap: wrap;
    gap: var(--spacing-md);
  }

  .app-header__title {
    font-size: var(--font-size-body-lg);
  }

  .pegas-logo-header {
    width: 64px;
  }

  .app-header__separator {
    width: 19px;
  }

  .filter-bar {
    padding: var(--spacing-base);
  }

  .filter-bar__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 16px;
    background: none;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-body);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: border-color var(--transition-fast);
  }

  .filter-bar__toggle:active {
    border-color: var(--color-primary);
  }

  .filter-bar__toggle-icon {
    transition: transform var(--transition-normal);
    font-size: 12px;
  }

  .filter-bar--expanded .filter-bar__toggle-icon {
    transform: rotate(180deg);
  }

  .filter-bar__row {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, opacity 0.2s ease, margin 0.3s ease;
    margin-top: 0;
  }

  .filter-bar--expanded .filter-bar__row {
    max-height: 500px;
    opacity: 1;
    margin-top: 12px;
  }

  .filter-bar__group {
    min-width: 100%;
    flex: 1 1 100%;
  }

  .blades-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-base);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .modal-content {
    margin: var(--spacing-sm);
    max-height: 95vh;
    border-radius: var(--radius-md);
  }

  .modal-header {
    flex-direction: column;
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-base) 0;
  }

  .range-table {
    font-size: var(--font-size-caption);
  }

  .range-table th,
  .range-table td {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box {
    min-width: 100%;
  }

  .results-info {
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
  }

  .stat-card__value {
    font-size: 28px;
  }

  .blade-card__image {
    height: 160px;
  }

  .blade-card__content {
    padding: var(--spacing-base);
  }

  .blade-card__reference {
    font-size: 18px;
  }
}


/* --- 24. Print --- */
@media print {
  body {
    background: white;
  }

  .app-header,
  .app-footer,
  .filter-bar,
  .unit-toggle,
  .lang-selector,
  .btn,
  .blade-card__view-range,
  .blade-card__actions,
  .lightbox-overlay {
    display: none !important;
  }

  .blade-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
  }

  .blades-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}


/* --- 25. Accessibility --- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* High contrast support */
@media (forced-colors: active) {
  .badge-family,
  .badge-best-choice,
  .tag-primary,
  .tag-material {
    border: 1px solid ButtonText;
  }

  .btn-primary {
    border: 2px solid ButtonText;
  }
}