/* ============================================================
   KhetiShop Design Tokens — Single Source of Truth
   All colors, spacing, radii, shadows, and typography
   are defined here. Every other CSS file references these.
   ============================================================ */

:root {
  /* ── Brand Colors ── */
  --ks-primary: #16a34a;          /* Main green — buttons, links, accents */
  --ks-primary-dark: #15803d;     /* Hover/active state */
  --ks-primary-light: #22c55e;    /* Lighter accent */
  --ks-primary-soft: #eaf7ef;     /* Tinted background */
  --ks-primary-outline: #b7e3c7;  /* Outline/border accent */
  --ks-primary-ring: rgba(22,163,74,.18); /* Focus ring */

  /* ── Accent / Status ── */
  --ks-accent: #f97316;           /* Orange — badges, deals, discount */
  --ks-accent-soft: #fff7ed;
  --ks-danger: #ef4444;           /* Red — errors, out-of-stock */
  --ks-danger-soft: #fef2f2;
  --ks-warning: #eab308;          /* Yellow — alerts */
  --ks-info: #3b82f6;             /* Blue — informational */

  /* ── Neutrals ── */
  --ks-white: #ffffff;
  --ks-bg: #f5f7f6;               /* Page background */
  --ks-card: #ffffff;             /* Card/panel background */
  --ks-border: #e5e7eb;           /* Default border */
  --ks-border-light: #f3f4f6;     /* Subtle separator */
  --ks-text: #111827;             /* Primary text */
  --ks-text-secondary: #4b5563;   /* Secondary text */
  --ks-muted: #9ca3af;            /* Muted/placeholder */
  --ks-disabled: #d1d5db;         /* Disabled state */

  /* ── Typography ── */
  --ks-font: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --ks-font-size-xs: 0.75rem;     /* 12px */
  --ks-font-size-sm: 0.8125rem;   /* 13px */
  --ks-font-size-base: 0.875rem;  /* 14px */
  --ks-font-size-md: 0.9375rem;   /* 15px */
  --ks-font-size-lg: 1.0625rem;   /* 17px */
  --ks-font-size-xl: 1.25rem;     /* 20px */
  --ks-font-size-2xl: 1.5rem;     /* 24px */
  --ks-font-size-3xl: 1.875rem;   /* 30px */

  /* ── Spacing ── */
  --ks-space-xs: 4px;
  --ks-space-sm: 8px;
  --ks-space-md: 12px;
  --ks-space-lg: 16px;
  --ks-space-xl: 24px;
  --ks-space-2xl: 32px;
  --ks-space-3xl: 48px;

  /* ── Border Radius ── */
  --ks-radius-sm: 6px;
  --ks-radius-md: 10px;
  --ks-radius-lg: 14px;
  --ks-radius-xl: 20px;
  --ks-radius-full: 9999px;

  /* ── Shadows ── */
  --ks-shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --ks-shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --ks-shadow-lg: 0 10px 24px rgba(16,24,40,.08);
  --ks-shadow-xl: 0 20px 40px rgba(16,24,40,.12);
  --ks-shadow-primary: 0 4px 14px rgba(22,163,74,.25);

  /* ── Transitions ── */
  --ks-transition: 0.2s ease;
  --ks-transition-slow: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* ── Layout ── */
  --ks-max-width: 1280px;
  --ks-header-height: 64px;
  --ks-bottom-nav-height: 56px;
  --ks-filter-footer-h: 72px;

  /* ── Z-index layers ── */
  --ks-z-dropdown: 100;
  --ks-z-sticky: 200;
  --ks-z-header: 1000;
  --ks-z-overlay: 5000;
  --ks-z-drawer: 6000;
  --ks-z-modal: 7000;
  --ks-z-toast: 8000;
}

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

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

html, body {
  overflow-x: hidden;
}

body {
  font-family: var(--ks-font);
  font-size: var(--ks-font-size-base);
  color: var(--ks-text);
  background: var(--ks-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* ============================================================
   Shared Component Styles — Buttons
   ============================================================ */
.ks-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ks-space-sm);
  font-family: var(--ks-font);
  font-weight: 600;
  font-size: var(--ks-font-size-base);
  border: none;
  border-radius: var(--ks-radius-md);
  cursor: pointer;
  transition: all var(--ks-transition);
  white-space: nowrap;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.ks-btn:active {
  transform: scale(0.97);
}

/* Primary (green filled) */
.ks-btn-primary {
  background: var(--ks-primary);
  color: var(--ks-white);
  padding: 10px 20px;
  box-shadow: var(--ks-shadow-primary);
}
.ks-btn-primary:hover {
  background: var(--ks-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(22,163,74,.3);
}

/* Secondary (green outline) */
.ks-btn-secondary {
  background: var(--ks-white);
  color: var(--ks-primary);
  padding: 10px 20px;
  border: 2px solid var(--ks-primary);
}
.ks-btn-secondary:hover {
  background: var(--ks-primary-soft);
}

/* Ghost (minimal, text only) */
.ks-btn-ghost {
  background: transparent;
  color: var(--ks-primary);
  padding: 8px 16px;
}
.ks-btn-ghost:hover {
  background: var(--ks-primary-soft);
}

/* Small variant */
.ks-btn-sm {
  font-size: var(--ks-font-size-sm);
  padding: 6px 14px;
  border-radius: var(--ks-radius-sm);
}

/* Large variant */
.ks-btn-lg {
  font-size: var(--ks-font-size-md);
  padding: 14px 28px;
  border-radius: var(--ks-radius-md);
}

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

/* ============================================================
   Shared Component Styles — Cards
   ============================================================ */
.ks-card {
  background: var(--ks-card);
  border: 1px solid var(--ks-border);
  border-radius: var(--ks-radius-lg);
  overflow: hidden;
  transition: box-shadow var(--ks-transition);
}
.ks-card:hover {
  box-shadow: var(--ks-shadow-md);
}

/* ============================================================
   Shared Component Styles — Product Card
   ============================================================ */
.product-card {
  background: var(--ks-card);
  border: 1px solid var(--ks-border);
  border-radius: var(--ks-radius-md);
  overflow: hidden;
  position: relative;
  transition: all var(--ks-transition);
  cursor: pointer;
}
.product-card:hover {
  box-shadow: var(--ks-shadow-md);
  border-color: var(--ks-primary-outline);
}

.product-card img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: contain;
  background: #fafafa;
  padding: 8px;
}

.product-card-body {
  padding: var(--ks-space-md);
}

.product-card .product-title {
  font-size: var(--ks-font-size-sm);
  font-weight: 500;
  color: var(--ks-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
  min-height: 2.8em;
}

.product-card .price-row {
  display: flex;
  align-items: baseline;
  gap: var(--ks-space-sm);
  margin-top: var(--ks-space-sm);
  font-size: var(--ks-font-size-md);
  font-weight: 700;
  color: var(--ks-text);
}
.product-card .price-row s {
  font-size: var(--ks-font-size-xs);
  font-weight: 400;
  color: var(--ks-muted);
}

.product-card .discount-badge {
  position: absolute;
  top: var(--ks-space-sm);
  left: var(--ks-space-sm);
  background: var(--ks-accent);
  color: var(--ks-white);
  font-size: var(--ks-font-size-xs);
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--ks-radius-sm);
}

.product-card .discount-row {
  font-size: var(--ks-font-size-xs);
  color: var(--ks-primary);
  font-weight: 600;
  margin-top: 2px;
}

.product-card .size-row {
  display: flex;
  align-items: center;
  gap: var(--ks-space-sm);
  margin-top: var(--ks-space-sm);
}
.product-card .size-label {
  font-size: var(--ks-font-size-xs);
  color: var(--ks-muted);
}
.product-card .size-button {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--ks-primary-soft);
  border: 1px solid var(--ks-primary-outline);
  color: var(--ks-primary-dark);
  font-size: var(--ks-font-size-xs);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--ks-radius-sm);
  cursor: pointer;
  transition: all var(--ks-transition);
}
.product-card .size-button:hover {
  background: var(--ks-primary);
  color: var(--ks-white);
  border-color: var(--ks-primary);
}

/* ============================================================
   Shared Component Styles — Badges
   ============================================================ */
.ks-badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--ks-font-size-xs);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--ks-radius-full);
}
.ks-badge-green {
  background: var(--ks-primary-soft);
  color: var(--ks-primary-dark);
}
.ks-badge-orange {
  background: var(--ks-accent-soft);
  color: var(--ks-accent);
}
.ks-badge-red {
  background: var(--ks-danger-soft);
  color: var(--ks-danger);
}

/* ============================================================
   Shared Component Styles — Form Inputs
   ============================================================ */
.ks-input {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--ks-font);
  font-size: var(--ks-font-size-base);
  color: var(--ks-text);
  background: var(--ks-white);
  border: 1.5px solid var(--ks-border);
  border-radius: var(--ks-radius-md);
  outline: none;
  transition: all var(--ks-transition);
}
.ks-input:focus {
  border-color: var(--ks-primary);
  box-shadow: 0 0 0 4px var(--ks-primary-ring);
}
.ks-input::placeholder {
  color: var(--ks-muted);
}

/* ============================================================
   Shared Component Styles — Grid
   ============================================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--ks-space-lg);
}
@media (max-width: 576px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--ks-space-sm);
  }
}

/* ============================================================
   Shared — Size/Variant Popup (single source)
   ============================================================ */
/* ============================================================
   Language Switcher
   ============================================================ */
.ks-lang-switcher {
  position: relative;
  display: inline-flex;
}
.ks-lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1.5px solid var(--ks-border);
  border-radius: var(--ks-radius-full);
  padding: 5px 14px;
  font-family: var(--ks-font);
  font-size: var(--ks-font-size-sm);
  font-weight: 500;
  color: var(--ks-text-secondary);
  cursor: pointer;
  transition: all var(--ks-transition);
  white-space: nowrap;
}
.ks-lang-toggle:hover {
  border-color: var(--ks-primary);
  color: var(--ks-primary);
}
.ks-lang-toggle .fa-globe { font-size: 14px; }
.ks-lang-arrow { font-size: 10px; transition: transform var(--ks-transition); }
.ks-lang-switcher.open .ks-lang-arrow { transform: rotate(180deg); }

.ks-lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--ks-card);
  border: 1px solid var(--ks-border);
  border-radius: var(--ks-radius-md);
  box-shadow: var(--ks-shadow-lg);
  list-style: none;
  padding: 6px 0;
  min-width: 180px;
  z-index: var(--ks-z-dropdown);
  animation: ks-fadeIn .15s ease;
}
.ks-lang-switcher.open .ks-lang-dropdown { display: block; }

.ks-lang-dropdown li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  font-size: var(--ks-font-size-sm);
  color: var(--ks-text);
  transition: background var(--ks-transition);
}
.ks-lang-dropdown li a:hover {
  background: var(--ks-primary-soft);
  color: var(--ks-primary-dark);
}
.ks-lang-dropdown li.active a {
  background: var(--ks-primary-soft);
  color: var(--ks-primary);
  font-weight: 600;
}
.ks-lang-dropdown li a small {
  color: var(--ks-muted);
  font-weight: 400;
}

/* Mobile: smaller toggle */
@media (max-width: 768px) {
  .ks-lang-toggle span { display: none; }
  .ks-lang-arrow { display: none; }
  .ks-lang-toggle { padding: 6px 10px; }
  .ks-lang-dropdown { right: auto; left: 0; }
}

/* ============================================================
   Shared — Size/Variant Popup (single source)
   ============================================================ */
.size-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: var(--ks-z-modal);
  animation: ks-fadeIn .2s ease;
}
.size-overlay.active { display: flex; align-items: flex-end; justify-content: center; }

.size-popup {
  background: var(--ks-card);
  width: 100%;
  max-width: 420px;
  max-height: 80vh;
  border-radius: var(--ks-radius-xl) var(--ks-radius-xl) 0 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: ks-slideUp .3s var(--ks-transition-slow);
}
@media (min-width: 769px) {
  .size-overlay.active { align-items: center; }
  .size-popup { border-radius: var(--ks-radius-xl); margin: var(--ks-space-xl); }
}

.popup-header {
  position: sticky;
  top: 0;
  z-index: 2;
  display: grid;
  grid-template-columns: 64px 1fr max-content;
  gap: var(--ks-space-md);
  align-items: center;
  padding: var(--ks-space-lg) 18px;
  padding-right: 64px;
  border-bottom: 1px solid var(--ks-border);
  background: var(--ks-card);
}
.popup-header img {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--ks-radius-md);
  border: 1px solid var(--ks-border);
}

.size-popup h4 {
  margin: 0;
  padding: var(--ks-space-md) 18px;
  font-size: var(--ks-font-size-md);
  color: var(--ks-text);
  border-bottom: 1px solid var(--ks-border-light);
}

.popup-close {
  position: absolute;
  top: var(--ks-space-md);
  right: var(--ks-space-md);
  width: 36px;
  height: 36px;
  border-radius: var(--ks-radius-full);
  border: none;
  background: var(--ks-bg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--ks-text-secondary);
  transition: all var(--ks-transition);
}
.popup-close:hover {
  background: var(--ks-border);
}

.variant-row {
  display: flex;
  align-items: center;
  gap: var(--ks-space-md);
  padding: var(--ks-space-md) 18px;
  border-bottom: 1px solid var(--ks-border-light);
  cursor: pointer;
  transition: background var(--ks-transition);
}
.variant-row:hover {
  background: var(--ks-primary-soft);
}
.variant-row.selected {
  background: var(--ks-primary-soft);
  border-left: 3px solid var(--ks-primary);
}

.add-to-cart-btn {
  height: 40px;
  padding: 0 var(--ks-space-lg);
  border: none;
  border-radius: var(--ks-radius-md);
  cursor: pointer;
  background: var(--ks-primary);
  color: var(--ks-white);
  font-weight: 700;
  font-size: var(--ks-font-size-sm);
  box-shadow: var(--ks-shadow-primary);
  transition: all var(--ks-transition);
}
.add-to-cart-btn:hover {
  background: var(--ks-primary-dark);
}

.go-cart-btn-header {
  height: 36px;
  padding: 0 var(--ks-space-lg);
  border: none;
  border-radius: var(--ks-radius-md);
  cursor: pointer;
  background: var(--ks-primary);
  color: var(--ks-white);
  font-weight: 600;
  white-space: nowrap;
  transition: all var(--ks-transition);
}
.go-cart-btn-header:hover {
  background: var(--ks-primary-dark);
}

.soldout-btn {
  height: 40px;
  padding: 0 var(--ks-space-lg);
  border: 1.5px solid var(--ks-disabled);
  border-radius: var(--ks-radius-md);
  background: var(--ks-bg);
  color: var(--ks-muted);
  font-weight: 600;
  cursor: not-allowed;
}

/* ============================================================
   Shared — Cart Checkout Button
   ============================================================ */
.cart-checkout-btn {
  width: 100%;
  height: 44px;
  border: none;
  border-radius: var(--ks-radius-md);
  background: var(--ks-primary);
  color: var(--ks-white);
  font-weight: 700;
  font-size: var(--ks-font-size-base);
  cursor: pointer;
  transition: all var(--ks-transition);
  touch-action: manipulation;
}
.cart-checkout-btn:hover {
  background: var(--ks-primary-dark);
}

/* ============================================================
   Shared — Breadcrumb
   ============================================================ */
.ks-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--ks-space-sm);
  font-size: var(--ks-font-size-sm);
  color: var(--ks-text-secondary);
  padding: var(--ks-space-md) 0;
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}
.ks-breadcrumb::-webkit-scrollbar { display: none; }
.ks-breadcrumb a { color: var(--ks-muted); transition: color var(--ks-transition); }
.ks-breadcrumb a:hover { color: var(--ks-primary); }
.ks-breadcrumb span { font-weight: 600; color: var(--ks-text); }
.ks-breadcrumb i { color: var(--ks-disabled); font-size: 10px; }

/* ============================================================
   Animations
   ============================================================ */
@keyframes ks-fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes ks-slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
@keyframes ks-slideIn {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}
@keyframes ks-slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

/* ============================================================
   Utility Classes
   ============================================================ */
.ks-container {
  width: 100%;
  max-width: var(--ks-max-width);
  margin: 0 auto;
  padding: 0 var(--ks-space-lg);
}
.ks-text-center { text-align: center; }
.ks-text-muted { color: var(--ks-muted); }
.ks-mt-sm { margin-top: var(--ks-space-sm); }
.ks-mt-md { margin-top: var(--ks-space-md); }
.ks-mt-lg { margin-top: var(--ks-space-lg); }
.ks-mt-xl { margin-top: var(--ks-space-xl); }
.ks-hidden { display: none !important; }
.ks-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}