/*══════════════════════════════════════════════════════════════
  ECOMSINGLE — DESIGN SYSTEM v2.0
  Single source of truth: tokens, utilities, components
══════════════════════════════════════════════════════════════*/

/* ── 1. DESIGN TOKENS ── */
:root {
  /* ▸ Color Palette */
  --clr-primary: #C41E3A;
  --clr-primary-dark: #a01830;
  --clr-primary-darker: #881337;
  --clr-primary-light: #FFF1F2;
  --clr-primary-glow: rgba(196, 30, 58, 0.15);

  --clr-accent: #FFB347;
  --clr-accent-dark: #FF6B35;

  --clr-success: #10B981;
  --clr-success-light: #D1FAE5;
  --clr-warning: #F59E0B;
  --clr-warning-light: #FEF3C7;
  --clr-error: #EF4444;
  --clr-error-light: #FEE2E2;
  --clr-info: #3B82F6;
  --clr-info-light: #DBEAFE;

  --clr-surface: #ffffff;
  --clr-surface-raised: #fafafa;
  --clr-surface-sunken: #f5f5f8;
  --clr-surface-dark: #1a1a2e;
  --clr-surface-darker: #16162a;
  --clr-surface-darkest: #0f0f1e;

  --clr-text: #1a1a2e;
  --clr-text-secondary: #4a4a5a;
  --clr-text-muted: #8a8a9a;
  --clr-text-inverse: #ffffff;
  --clr-text-link: #C41E3A;

  --clr-border: #e8e8ee;
  --clr-border-light: #f0f0f5;
  --clr-border-dark: rgba(0,0,0,0.1);

  /* ▸ Typography Scale */
  --fs-2xs: 0.6875rem;   /* 11px */
  --fs-xs: 0.75rem;      /* 12px */
  --fs-sm: 0.8125rem;    /* 13px */
  --fs-base: 0.875rem;   /* 14px */
  --fs-md: 1rem;         /* 16px */
  --fs-lg: 1.125rem;     /* 18px */
  --fs-xl: 1.25rem;      /* 20px */
  --fs-2xl: 1.5rem;      /* 24px */
  --fs-3xl: 1.875rem;    /* 30px */
  --fs-4xl: 2.25rem;     /* 36px */
  --fs-5xl: 3rem;        /* 48px */

  --lh-tight: 1.25;
  --lh-normal: 1.5;
  --lh-relaxed: 1.75;

  --fw-light: 300;
  --fw-normal: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;

  /* ▸ Spacing Scale */
  --sp-0: 0;
  --sp-1: 0.25rem;   /* 4px */
  --sp-2: 0.5rem;    /* 8px */
  --sp-3: 0.75rem;   /* 12px */
  --sp-4: 1rem;      /* 16px */
  --sp-5: 1.25rem;   /* 20px */
  --sp-6: 1.5rem;    /* 24px */
  --sp-8: 2rem;      /* 32px */
  --sp-10: 2.5rem;   /* 40px */
  --sp-12: 3rem;     /* 48px */
  --sp-16: 4rem;     /* 64px */
  --sp-20: 5rem;     /* 80px */
  --sp-24: 6rem;     /* 96px */

  /* ▸ Shadows */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.16);
  --shadow-glow: 0 8px 32px rgba(196,30,58,0.18);
  --shadow-glow-lg: 0 12px 40px rgba(196,30,58,0.25);

  /* ▸ Border Radius */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* ▸ Transitions */
  --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 0.15s;
  --duration-normal: 0.3s;
  --duration-slow: 0.5s;
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* ▸ Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-overlay: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-toast: 700;
  --z-tooltip: 800;
  --z-max: 9999;

  /* ▸ Container */
  --container-max: 1200px;
  --container-wide: 1440px;
}

/* ── 2. KEYFRAME ANIMATIONS ── */
@keyframes ds-fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes ds-fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes ds-fadeInDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes ds-scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes ds-slideInRight {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes ds-slideInLeft {
  from { opacity: 0; transform: translateX(-100%); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes ds-shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes ds-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}
@keyframes ds-spin {
  to { transform: rotate(360deg); }
}
@keyframes ds-bounceIn {
  0% { transform: scale(0); opacity: 0; }
  60% { transform: scale(1.08); opacity: 1; }
  100% { transform: scale(1); }
}

/* ── 3. ACCESSIBILITY UTILITIES ── */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0,0,0,0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-to-content {
  position: fixed;
  top: -100%;
  left: var(--sp-4);
  z-index: var(--z-max);
  background: var(--clr-primary);
  color: var(--clr-text-inverse);
  padding: var(--sp-3) var(--sp-6);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-family: 'Inter', sans-serif;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-base);
  text-decoration: none;
  transition: top 0.2s ease;
  box-shadow: var(--shadow-md);
}
.skip-to-content:focus {
  top: 0;
  outline: none;
}

*:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 2px;
}

/* ── 4. REUSABLE BUTTON SYSTEM ── */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: 'Inter', sans-serif;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  letter-spacing: 0.3px;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: var(--sp-3) var(--sp-6);
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  line-height: 1.4;
  white-space: nowrap;
  min-height: 44px;
}
.ds-btn:active { transform: scale(0.97); }

.ds-btn-primary {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
  color: var(--clr-text-inverse);
  box-shadow: var(--shadow-glow);
}
.ds-btn-primary:hover {
  box-shadow: var(--shadow-glow-lg);
  transform: translateY(-2px);
}

.ds-btn-secondary {
  background: var(--clr-surface);
  color: var(--clr-primary);
  border-color: var(--clr-primary);
}
.ds-btn-secondary:hover {
  background: var(--clr-primary);
  color: var(--clr-text-inverse);
  transform: translateY(-2px);
}

.ds-btn-ghost {
  background: transparent;
  color: var(--clr-text);
  border: none;
  padding: var(--sp-2) var(--sp-4);
}
.ds-btn-ghost:hover {
  background: var(--clr-surface-sunken);
}

.ds-btn-accent {
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-dark));
  color: var(--clr-text-inverse);
  box-shadow: 0 4px 16px rgba(255,107,53,0.3);
}
.ds-btn-accent:hover {
  box-shadow: 0 6px 20px rgba(255,107,53,0.4);
  transform: translateY(-2px);
}

.ds-btn-sm {
  font-size: var(--fs-xs);
  padding: var(--sp-2) var(--sp-4);
  min-height: 36px;
}
.ds-btn-lg {
  font-size: var(--fs-base);
  padding: var(--sp-4) var(--sp-8);
  min-height: 52px;
}

.ds-btn:disabled, .ds-btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ── 5. CARD SYSTEM ── */
.ds-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-normal);
}
.ds-card-elevated:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}
.ds-card-body { padding: var(--sp-4); }
.ds-card-header {
  padding: var(--sp-4);
  border-bottom: 1px solid var(--clr-border-light);
}

/* ── 6. INPUT SYSTEM ── */
.ds-input {
  display: block;
  width: 100%;
  font-family: 'Inter', sans-serif;
  font-size: var(--fs-base);
  font-weight: var(--fw-normal);
  color: var(--clr-text);
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--sp-3) var(--sp-4);
  transition: var(--transition-normal);
  min-height: 44px;
}
.ds-input:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px var(--clr-primary-glow);
  outline: none;
}
.ds-input::placeholder {
  color: var(--clr-text-muted);
}
.ds-input-error {
  border-color: var(--clr-error);
}
.ds-input-error:focus {
  box-shadow: 0 0 0 3px rgba(239,68,68,0.15);
}
.ds-input-success {
  border-color: var(--clr-success);
}

.ds-label {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--clr-text);
  margin-bottom: var(--sp-1);
}

.ds-field-error {
  font-size: var(--fs-xs);
  color: var(--clr-error);
  margin-top: var(--sp-1);
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

/* ── 7. BADGE SYSTEM ── */
.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  font-family: 'Inter', sans-serif;
  font-size: var(--fs-2xs);
  font-weight: var(--fw-bold);
  letter-spacing: 0.3px;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  line-height: 1.4;
}
.ds-badge-discount {
  background: linear-gradient(135deg, var(--clr-primary), #ff4757);
  color: var(--clr-text-inverse);
  box-shadow: 0 2px 8px rgba(196,30,58,0.35);
}
.ds-badge-new {
  background: var(--clr-info);
  color: var(--clr-text-inverse);
}
.ds-badge-stock {
  background: var(--clr-warning-light);
  color: #92400E;
}
.ds-badge-success {
  background: var(--clr-success-light);
  color: #065F46;
}
.ds-badge-error {
  background: var(--clr-error-light);
  color: #991B1B;
}

/* ── 8. SKELETON LOADER ── */
.ds-skeleton {
  background: linear-gradient(90deg, #f0f0f5 25%, #e8e8ee 50%, #f0f0f5 75%);
  background-size: 200% 100%;
  animation: ds-shimmer 1.5s ease infinite;
  border-radius: var(--radius-md);
}
.ds-skeleton-text {
  height: 14px;
  margin-bottom: var(--sp-2);
  border-radius: var(--radius-xs);
}
.ds-skeleton-text:last-child { width: 60%; }
.ds-skeleton-img {
  width: 100%;
  aspect-ratio: 1;
}
.ds-skeleton-btn {
  height: 44px;
  border-radius: var(--radius-md);
}
.ds-skeleton-card {
  border-radius: var(--radius-lg);
  padding: var(--sp-4);
}

/* ── 9. LOADING SPINNER ── */
.ds-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--clr-border);
  border-top-color: var(--clr-primary);
  border-radius: var(--radius-full);
  animation: ds-spin 0.6s linear infinite;
}
.ds-spinner-lg { width: 32px; height: 32px; border-width: 3px; }

/* ── 10. TOAST NOTIFICATION ── */
.ds-toast {
  position: fixed;
  top: var(--sp-6);
  right: var(--sp-6);
  z-index: var(--z-toast);
  max-width: 380px;
  width: calc(100% - var(--sp-8));
  padding: var(--sp-4);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  font-family: 'Inter', sans-serif;
  box-shadow: var(--shadow-lg);
  transform: translateX(120%);
  transition: transform 0.4s var(--ease-out);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-light);
}
.ds-toast.ds-toast-visible { transform: translateX(0); }
.ds-toast-success { border-left: 4px solid var(--clr-success); }
.ds-toast-error { border-left: 4px solid var(--clr-error); }
.ds-toast-warning { border-left: 4px solid var(--clr-warning); }
.ds-toast-info { border-left: 4px solid var(--clr-info); }

/* ── 11. EMPTY STATE ── */
.ds-empty-state {
  text-align: center;
  padding: var(--sp-16) var(--sp-8);
  color: var(--clr-text-muted);
  font-family: 'Inter', sans-serif;
}
.ds-empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--sp-4);
  opacity: 0.4;
}
.ds-empty-state-title {
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  color: var(--clr-text);
  margin-bottom: var(--sp-2);
}
.ds-empty-state-text {
  font-size: var(--fs-base);
  margin-bottom: var(--sp-6);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--lh-relaxed);
}

/* ── 12. TRUST BADGE (reusable) ── */
.ds-trust-strip {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
  padding: var(--sp-4) 0;
  border-top: 1px solid var(--clr-border-light);
}
.ds-trust-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: 'Inter', sans-serif;
  font-size: var(--fs-2xs);
  font-weight: var(--fw-semibold);
  color: var(--clr-text-secondary);
  background: var(--clr-surface-sunken);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
  transition: var(--transition-fast);
}
.ds-trust-item i { font-size: var(--fs-md); color: var(--clr-success); }
.ds-trust-item:hover {
  background: var(--clr-surface);
  box-shadow: var(--shadow-xs);
}

/* ── 13. PROGRESS BAR ── */
.ds-progress {
  width: 100%;
  height: 8px;
  background: var(--clr-border);
  border-radius: var(--radius-xs);
  overflow: hidden;
}
.ds-progress-fill {
  height: 100%;
  border-radius: var(--radius-xs);
  background: linear-gradient(90deg, var(--clr-primary), #e85d75);
  transition: width 0.8s var(--ease-out);
  position: relative;
}
.ds-progress-fill::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 20px; height: 100%;
  background: rgba(255,255,255,0.4);
  animation: ds-shimmer 2s infinite;
}
.ds-progress-success .ds-progress-fill {
  background: linear-gradient(90deg, var(--clr-success), #27ae60);
}

/* ── 14. MOBILE DRAWER ── */
.ds-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: var(--z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) ease, visibility var(--duration-normal) ease;
  backdrop-filter: blur(4px);
}
.ds-drawer-backdrop.ds-active {
  opacity: 1;
  visibility: visible;
}
.ds-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: min(320px, 85vw);
  height: 100%;
  background: var(--clr-surface);
  z-index: var(--z-modal);
  transform: translateX(-100%);
  transition: transform var(--duration-normal) var(--ease-out);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: var(--shadow-xl);
}
.ds-drawer.ds-active { transform: translateX(0); }
.ds-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--clr-border-light);
}
.ds-drawer-close {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: var(--clr-surface-sunken);
  border: none; border-radius: var(--radius-full);
  font-size: var(--fs-lg);
  cursor: pointer;
  transition: var(--transition-fast);
  color: var(--clr-text);
}
.ds-drawer-close:hover {
  background: var(--clr-primary);
  color: var(--clr-text-inverse);
}
.ds-drawer-body { padding: var(--sp-4) 0; }
.ds-drawer-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-5);
  color: var(--clr-text);
  font-family: 'Inter', sans-serif;
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  text-decoration: none;
  transition: var(--transition-fast);
  border-left: 3px solid transparent;
}
.ds-drawer-item:hover, .ds-drawer-item.active {
  background: var(--clr-primary-light);
  color: var(--clr-primary);
  border-left-color: var(--clr-primary);
}

/* ── 15. SECTION HEADER ── */
.ds-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-5);
  padding-bottom: var(--sp-3);
  border-bottom: 2px solid var(--clr-border-light);
}
.ds-section-title {
  font-family: 'Inter', sans-serif;
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--clr-text);
  letter-spacing: -0.3px;
  position: relative;
}
.ds-section-title::after {
  content: '';
  position: absolute;
  bottom: calc(-1 * var(--sp-3) - 2px);
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--clr-primary);
  border-radius: 3px;
  transition: width 0.4s ease;
}
.ds-section-header:hover .ds-section-title::after { width: 100%; }

/* ── 16. QUANTITY SELECTOR ── */
.ds-qty {
  display: inline-flex;
  align-items: center;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--clr-surface);
}
.ds-qty-btn {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: var(--clr-surface-sunken);
  border: none;
  cursor: pointer;
  font-size: var(--fs-md);
  color: var(--clr-text);
  transition: var(--transition-fast);
}
.ds-qty-btn:hover {
  background: var(--clr-primary-light);
  color: var(--clr-primary);
}
.ds-qty-value {
  min-width: 40px;
  text-align: center;
  font-family: 'Inter', sans-serif;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-base);
  padding: 0 var(--sp-2);
}

/* ── 17. SELECTION COLOR ── */
::selection { background: var(--clr-primary); color: var(--clr-text-inverse); }
::-moz-selection { background: var(--clr-primary); color: var(--clr-text-inverse); }

/* ── 18. SMOOTH SCROLLBAR ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--clr-surface-sunken); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--clr-primary), var(--clr-primary-dark));
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--clr-primary-dark); }

/* ── 19. GLOBAL OVERRIDES ── */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── 20. PRINT STYLES ── */
@media print {
  .top-header, .mainmenu-area, .footer, .bottomtotop,
  .cro-announcement-bar, .cro-whatsapp-btn, .cro-social-toast,
  .cro-exit-overlay, .cro-sticky-bar { display: none !important; }
  body { font-size: 12pt; color: #000; }
  a { color: #000; text-decoration: underline; }
  .ds-btn { border: 1px solid #000; }
}

/* ── 21. REDUCED MOTION ── */
@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;
  }
}