/* ==========================================================================
   PayWasil (The Daily Pures) - Main Stylesheet
   Milestone 1: Core Architecture & Design System
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens (CSS Variables)
   -------------------------------------------------------------------------- */
:root {
  /* Brand Primary & Core Colors */
  --color-deep-amber: #F59E0B;
  --color-amber-hover: #D97706;
  --color-amber-light: #FBBF24;
  --color-amber-glow: rgba(245, 158, 11, 0.4);
  --color-matte-black: #121212;
  --color-surface-dark: #1A1A1A;
  --color-surface-card: #242424;
  --color-solid-white: #FFFFFF;
  --color-text-muted: #A3A3A3;
  --color-text-dim: #737373;
  --color-border-dark: #333333;

  /* Convenience Aliases & Explicit Token Tests */
  --color-primary: #F59E0B;
  --color-bg: #121212;
  --color-white: #FFFFFF;
  --color-text: var(--color-solid-white);

  /* Dark Glassmorphism Tokens */
  --glass-bg: rgba(18, 18, 18, 0.75);
  --glass-bg-header: rgba(18, 18, 18, 0.85);
  --glass-bg-card: rgba(30, 30, 30, 0.65);
  --glass-border: rgba(245, 158, 11, 0.2);
  --glass-border-subtle: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(16px);
  --glass-blur-header: blur(12px);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --glass-glow-shadow: 0 0 25px rgba(245, 158, 11, 0.3);

  /* Typography Tokens */
  --font-family-base: 'Outfit', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-heading: 'Outfit', sans-serif;
  --font-family-bengali: 'Hind Siliguri', 'Outfit', sans-serif;

  /* Font Sizes (Mobile-First Scale) */
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-md: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */

  /* Spacing Scale */
  --space-xs: 0.25rem;  /* 4px */
  --space-sm: 0.5rem;   /* 8px */
  --space-md: 1rem;     /* 16px */
  --space-lg: 1.5rem;   /* 24px */
  --space-xl: 2rem;     /* 32px */
  --space-2xl: 3rem;    /* 48px */
  --space-3xl: 4rem;    /* 64px */

  /* Layout Container */
  --container-max-width: 1200px;
  --container-padding-mobile: 1rem;
  --container-padding-desktop: 2rem;
  --header-height: 70px;

  /* Transitions & Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-bounce: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* --------------------------------------------------------------------------
   2. Mobile-First CSS Reset & Base Layout Shell (Zero CLS, 320px-430px optimization)
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 70px;
  font-family: var(--font-family-base);
  background-color: var(--color-bg);
  color: var(--color-text);
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  width: 100%;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  line-height: 1.6;
  background-color: var(--color-matte-black);
  color: var(--color-solid-white);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
}

/* Zero-CLS Container Shell */
.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  width: 100%;
}

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding-mobile);
  padding-right: var(--container-padding-mobile);
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-solid-white);
  letter-spacing: -0.02em;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   3. Header Navigation Base System
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 500;
  background-color: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid transparent;
  transition: background-color var(--transition-normal),
              backdrop-filter var(--transition-normal),
              border-color var(--transition-normal),
              box-shadow var(--transition-normal);
}

.site-header.scrolled {
  background-color: var(--glass-bg-header);
  backdrop-filter: var(--glass-blur-header);
  -webkit-backdrop-filter: var(--glass-blur-header);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo-brand,
.brand-logo,
#logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-solid-white);
  letter-spacing: -0.03em;
  text-decoration: none;
  user-select: none;
  -webkit-user-select: none;
  white-space: nowrap;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-title {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-solid-white);
  letter-spacing: -0.03em;
}

.brand-title .accent {
  color: var(--color-deep-amber);
}

.brand-subtext {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Mobile Hamburger Toggle Button */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 22px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.hamburger-bar {
  width: 100%;
  height: 2px;
  background-color: var(--color-solid-white);
  border-radius: var(--radius-full);
  transition: transform var(--transition-normal), opacity var(--transition-normal), background-color var(--transition-normal);
}

.nav-toggle:hover .hamburger-bar,
.nav-toggle:focus .hamburger-bar {
  background-color: var(--color-deep-amber);
}

/* Active hamburger icon animation (X) */
.nav-toggle.active .hamburger-bar:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}

.nav-toggle.active .hamburger-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active .hamburger-bar:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

nav a,
.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

nav a:hover,
nav a:focus,
nav a:active,
.nav-link:hover,
.nav-link:focus,
.nav-link.active {
  color: var(--color-deep-amber);
}

/* --------------------------------------------------------------------------
   4. Hero Section Base System & 3D Canvas
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 100vh;
  max-height: 100vh !important;
  box-sizing: border-box !important;
  margin: 0 !important;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: calc(var(--header-height) + var(--space-xl));
  padding-bottom: var(--space-2xl);
  overflow: hidden !important;
  background: radial-gradient(circle at 50% 30%, rgba(245, 158, 11, 0.18) 0%, rgba(26, 26, 26, 0.95) 45%, rgba(18, 18, 18, 1) 85%);
  isolation: isolate;
  z-index: 1;
}

.hero-3d-bg,
#hero-3d-canvas,
.hero-3d-canvas,
.ambient-3d-container,
#ambient-3d-container,
.honey-drip,
.bee-element,
.motion-graphic,
.3d-placeholder {
  position: absolute !important;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  min-height: 100%;
  z-index: -1 !important;
  pointer-events: none;
  overflow: hidden;
  background: transparent;
}

.hero-content {
  position: relative !important;
  z-index: 9999 !important;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin: 0 auto;
  padding: 0;
  text-align: center;
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateZ(0);
  will-change: transform, opacity;
  backface-visibility: hidden;
}

/* Hero Badge */
.hero-badge-container {
  margin-bottom: var(--space-md);
  width: 100%;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.35rem 1rem;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-deep-amber);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Hero Headline & Subtext */
.hero-headline {
  font-family: var(--font-family-heading);
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 800;
  color: var(--color-solid-white);
  line-height: 1.15;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
  text-align: center;
  width: 100%;
}

.hero-subtext {
  font-size: clamp(0.95rem, 2.5vw, 1.2rem);
  color: var(--color-text-muted);
  max-width: 680px;
  margin: 0 auto var(--space-xl) auto;
  line-height: 1.6;
  opacity: 0.95;
  text-align: center;
}

/* Mega Offer Giveaway Banner */
.giveaway-banner,
.mega-offer,
.giveaway-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  width: 100%;
  max-width: 620px;
  margin: 0 auto var(--space-xl) auto;
  padding: var(--space-md) var(--space-lg);
  background: var(--glass-bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.giveaway-banner:hover {
  border-color: rgba(245, 158, 11, 0.4);
  box-shadow: var(--glass-glow-shadow);
}

.giveaway-badge-title {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-deep-amber);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.giveaway-prizes {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-solid-white);
}

.prize-item {
  display: inline-flex;
  align-items: center;
}

.prize-divider {
  color: var(--color-deep-amber);
  opacity: 0.6;
}

/* Hero CTA Wrapper */
.hero-cta-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

/* --------------------------------------------------------------------------
   5. Glowing CTA Button System & Keyframes
   -------------------------------------------------------------------------- */
.btn-glow-cta,
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.25rem;
  min-height: 48px;
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-matte-black);
  background: linear-gradient(135deg, var(--color-deep-amber) 0%, var(--color-amber-light) 100%);
  border-radius: var(--radius-full);
  box-shadow: 0 0 20px var(--color-amber-glow);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  animation: pulse-glow 2.5s infinite ease-in-out;
}

.btn-glow-cta:hover,
.cta-button:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 0 35px rgba(245, 158, 11, 0.7);
}

.btn-glow-cta:active,
.cta-button:active {
  transform: translateY(0) scale(0.98);
}

@keyframes pulse-glow {
  0% {
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.4), 0 0 30px rgba(245, 158, 11, 0.2);
    transform: scale(1);
    opacity: 1;
  }
  50% {
    box-shadow: 0 0 30px rgba(245, 158, 11, 0.8), 0 0 50px rgba(245, 158, 11, 0.5);
    transform: scale(1.04);
    opacity: 0.95;
  }
  100% {
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.4), 0 0 30px rgba(245, 158, 11, 0.2);
    transform: scale(1);
    opacity: 1;
  }
}

/* --------------------------------------------------------------------------
   6. Sticky Floating WhatsApp Button System
   -------------------------------------------------------------------------- */
.whatsapp-float-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background-color: #25D366;
  color: var(--color-solid-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: transform var(--transition-bounce), box-shadow var(--transition-fast), background-color var(--transition-fast);
  user-select: none;
  -webkit-user-select: none;
}

.whatsapp-float-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.6);
  background-color: #22c35e;
}

.whatsapp-float-btn:active {
  transform: scale(0.95);
  box-shadow: 0 2px 14px rgba(37, 211, 102, 0.5);
}

.whatsapp-float-btn:focus-visible {
  outline: 3px solid var(--color-deep-amber);
  outline-offset: 3px;
}

.whatsapp-float-btn svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
}

/* --------------------------------------------------------------------------
   Sticky Floating Cart & Badge System (Milestone 2-P2)
   -------------------------------------------------------------------------- */
.floating-cart-btn,
#floating-cart,
.floating-cart {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 998;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--glass-bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-solid-white);
  text-decoration: none;
  box-shadow: var(--glass-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  user-select: none;
  -webkit-user-select: none;
}

.floating-cart-btn:hover,
#floating-cart:hover {
  transform: translateY(-50%) scale(1.08);
  box-shadow: 0 8px 32px rgba(245, 158, 11, 0.3);
  color: var(--color-deep-amber);
}

.floating-cart-btn:active,
#floating-cart:active {
  transform: translateY(-50%) scale(0.95);
}

.cart-badge,
#cart-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-deep-amber);
  color: var(--color-matte-black);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  border: 2px solid var(--color-matte-black);
  line-height: 1;
}

@keyframes badge-pop {
  0% { transform: scale(1); }
  50% { transform: scale(1.4); }
  100% { transform: scale(1); }
}

@keyframes badge-bounce {
  0% { transform: scale(1); }
  30% { transform: scale(1.4); }
  60% { transform: scale(0.9); }
  100% { transform: scale(1); }
}

@keyframes fly-to-cart {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(0.2); opacity: 0; }
}

.badge-pop {
  animation: badge-pop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.badge-bounce {
  animation: badge-bounce 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.cart-fly-particle {
  position: fixed;
  pointer-events: none;
  z-index: 1000;
  will-change: transform, opacity;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.6s ease;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-deep-amber);
  box-shadow: 0 0 12px var(--color-amber-glow);
  margin-left: -12px;
  margin-top: -12px;
}

/* --------------------------------------------------------------------------
   7. Products Section & Product Cards System (Milestone 1-P2 Foundation)
   -------------------------------------------------------------------------- */
.products-section,
#products {
  padding: var(--space-3xl) 0;
  background: radial-gradient(circle at 50% 0%, rgba(245, 158, 11, 0.08) 0%, rgba(18, 18, 18, 1) 70%);
  border-bottom: 1px solid var(--color-border-dark);
  min-height: 600px;
}

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-header.text-center {
  text-align: center;
}

.section-badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-deep-amber);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-solid-white);
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Products Layout Grid (1 Column Mobile 320px-430px, 3 Columns Desktop) */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  width: 100%;
  max-width: 1200px;
}

/* Product Card Glassmorphism */
.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background-color: var(--glass-bg-card);
  background: var(--glass-bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--glass-shadow);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  will-change: transform;
  overflow: hidden;
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(245, 158, 11, 0.45);
  box-shadow: var(--glass-glow-shadow);
}

/* Product Card Badges & Tags */
.product-badge-wrapper {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  z-index: 2;
}

.product-badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-badge.best-value {
  background: var(--color-deep-amber);
  color: var(--color-matte-black);
}

.product-badge.popular {
  background: rgba(245, 158, 11, 0.2);
  color: var(--color-deep-amber);
  border: 1px solid var(--color-deep-amber);
}

.product-badge.trial {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-solid-white);
  border: 1px solid var(--glass-border-subtle);
}

.weight-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-deep-amber);
  margin-bottom: var(--space-xs);
}

/* Product Image Container (0 CLS Prevention) */
.product-image-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  border-radius: var(--radius-md);
  background: radial-gradient(circle at 50% 50%, rgba(245, 158, 11, 0.05) 0%, transparent 70%);
}

.product-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform var(--transition-bounce);
}

.product-card:hover .product-image {
  transform: scale(1.05);
}

/* Product Details & Typography */
.product-details {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-solid-white);
  margin-bottom: var(--space-xs);
}

.product-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  line-height: 1.4;
}

/* Price Container & Typography */
.price-container {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  margin-top: auto;
}

.current-price {
  font-size: clamp(1.35rem, 3vw, 1.65rem);
  font-weight: 800;
  color: var(--color-deep-amber);
  letter-spacing: -0.02em;
}

.old-price {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-dim);
  text-decoration: line-through;
}

/* Product Action Buttons (Minimum 48px Touch Target Enforced) */
.product-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
}

.btn-add-cart,
.btn-order-now {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  width: 100%;
  min-height: 48px;
  padding: 0.75rem 1.25rem;
  font-size: var(--font-size-sm);
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.btn-add-cart {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-deep-amber);
  border: 1px solid var(--color-deep-amber);
}

.btn-add-cart:hover {
  background: rgba(245, 158, 11, 0.2);
  transform: translateY(-2px);
}

.btn-add-cart:active {
  transform: translateY(0);
}

.btn-order-now {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-deep-amber) 0%, var(--color-amber-light) 100%);
  color: var(--color-matte-black);
  border: none;
  box-shadow: 0 4px 15px var(--color-amber-glow);
}

.btn-order-now::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -75%;
  width: 50%;
  height: 200%;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.6) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: rotate(25deg);
  transition: left 0.6s ease-in-out;
  pointer-events: none;
}

.btn-order-now:hover::after {
  left: 125%;
}

.btn-order-now:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.6);
}

.btn-order-now:active {
  transform: translateY(0);
}

/* ==========================================================================
   Milestone 1-P4: Informational Sections (#about, #contact, #terms)
   ========================================================================== */

/* --------------------------------------------------------------------------
   About Us Section Styling
   -------------------------------------------------------------------------- */
.about-section,
#about {
  padding: var(--space-3xl) 0;
  background: radial-gradient(circle at 50% 0%, rgba(245, 158, 11, 0.04) 0%, rgba(18, 18, 18, 1) 80%);
  border-bottom: 1px solid var(--color-border-dark);
  min-height: 400px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.about-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: var(--space-xl);
  border-radius: var(--radius-md);
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.about-card:hover {
  transform: translateY(-4px);
  border-color: var(--glass-border);
}

.about-icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: rgba(245, 158, 11, 0.12);
  color: var(--color-deep-amber);
  margin-bottom: var(--space-md);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.about-card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-solid-white);
  margin-bottom: var(--space-sm);
}

.about-card-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.link-inline,
.link-highlight {
  color: var(--color-deep-amber);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.link-inline:hover,
.link-highlight:hover {
  color: var(--color-amber-light);
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Contact Us Section Styling
   -------------------------------------------------------------------------- */
.contact-section,
#contact {
  padding: var(--space-3xl) 0;
  background: rgba(18, 18, 18, 0.95);
  border-bottom: 1px solid var(--color-border-dark);
  min-height: 400px;
}

.contact-card-wrapper {
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-xl);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1.1fr 1fr;
    align-items: center;
  }
}

.contact-highlight-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-xl);
  background: radial-gradient(circle at 50% 0%, rgba(37, 211, 102, 0.15) 0%, rgba(20, 20, 20, 0.8) 100%);
  border: 1px solid rgba(37, 211, 102, 0.3);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.contact-whatsapp-icon {
  color: #25D366;
  margin-bottom: var(--space-xs);
}

.contact-highlight-title {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-solid-white);
  margin-bottom: var(--space-xs);
}

.contact-number {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: #25D366;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-xs);
}

.contact-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  max-width: 380px;
}

.btn-whatsapp-chat {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 48px;
  padding: 0.75rem 1.75rem;
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-solid-white);
  background: #25D366;
  border: none;
  border-radius: var(--radius-full);
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(37, 211, 102, 0.4);
  transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-whatsapp-chat:hover {
  background: #22c35e;
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(37, 211, 102, 0.6);
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.info-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-md);
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-deep-amber);
  border: 1px solid var(--glass-border);
}

.info-content h4 {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-solid-white);
  margin-bottom: 2px;
}

.info-content p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Terms & Condition Accordion Styling
   -------------------------------------------------------------------------- */
.terms-section,
#terms {
  padding: var(--space-3xl) 0;
  background: radial-gradient(circle at 50% 100%, rgba(245, 158, 11, 0.05) 0%, rgba(18, 18, 18, 1) 85%);
  border-bottom: 1px solid var(--color-border-dark);
  min-height: 400px;
}

.terms-accordion {
  max-width: 900px;
  margin: var(--space-xl) auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.terms-accordion-item {
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--radius-md);
  background: var(--glass-bg-card);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.terms-accordion-item[open] {
  border-color: var(--glass-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 52px;
  padding: 1rem 1.25rem;
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-solid-white);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.accordion-header::-webkit-details-marker {
  display: none;
}

.accordion-title {
  color: var(--color-solid-white);
}

.terms-accordion-item[open] .accordion-title {
  color: var(--color-deep-amber);
}

.accordion-chevron {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}

.terms-accordion-item[open] .accordion-chevron {
  transform: rotate(180deg);
  color: var(--color-deep-amber);
}

.accordion-body {
  padding: 0 1.25rem 1.25rem;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  margin-top: 0.25rem;
  padding-top: 1rem;
}

.accordion-body p {
  margin-bottom: var(--space-sm);
}

.accordion-body p:last-child {
  margin-bottom: 0;
}

.accordion-body ul {
  margin: var(--space-xs) 0 var(--space-sm) 1.25rem;
  color: var(--color-text-muted);
}

.accordion-body li {
  margin-bottom: 4px;
}

/* Checkout Section & Form (Milestone 1-P3) */
.checkout-section,
#checkout {
  display: none; /* Hidden by default */
  padding: var(--space-3xl) 0;
  background: radial-gradient(circle at 50% 0%, rgba(245, 158, 11, 0.06) 0%, rgba(18, 18, 18, 1) 75%);
  border-bottom: 1px solid var(--color-border-dark);
  min-height: 450px;
}

.checkout-card {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-xl);
}

.checkout-form {
  max-width: 900px;
  width: 100%;
}

.checkout-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .checkout-grid {
    grid-template-columns: 1.2fr 1fr;
  }
}

.form-subtitle {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-solid-white);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--glass-border-subtle);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}

.required-asterisk {
  color: var(--color-deep-amber);
}

/* Touch Target Enforced >= 44px (min-height: 48px, font-size: 16px to prevent iOS auto-zoom) */
.form-input,
.form-textarea,
.checkout-form input,
.checkout-form textarea {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem 1rem;
  font-size: 16px;
  color: var(--color-solid-white);
  background: rgba(18, 18, 18, 0.75);
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-input:focus,
.form-textarea:focus,
.checkout-form input:focus,
.checkout-form textarea:focus,
#checkout input:focus {
  border-color: var(--color-deep-amber);
  box-shadow: 0 0 12px var(--color-amber-glow);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-dim);
}

/* Order Summary Box */
.order-summary-container,
.order-summary-card,
.order-summary,
#order-summary {
  display: flex;
  flex-direction: column;
  max-width: 100%;
  width: 100%;
  padding: var(--space-md);
  background: rgba(18, 18, 18, 0.6);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-md);
}

.order-summary-box {
  background: rgba(18, 18, 18, 0.6);
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
}

.summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding: var(--space-xs) 0;
}

.item-name {
  font-weight: 600;
  color: var(--color-solid-white);
}

.item-price {
  font-weight: 700;
  color: var(--color-deep-amber);
}

.shipping-free {
  color: #10B981;
  font-weight: 600;
}

.summary-divider {
  height: 1px;
  background: var(--glass-border-subtle);
  margin: var(--space-xs) 0;
}

.summary-total {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-solid-white);
  padding-top: var(--space-xs);
}

.total-amount,
.order-total-price,
.order-total {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-deep-amber);
}

/* Confirm Order Button Styling */
.btn-confirm-order {
  width: 100%;
  min-height: 52px;
  padding: 1rem 1.5rem;
  font-size: var(--font-size-lg);
  font-weight: 800;
  color: var(--color-matte-black);
  background: linear-gradient(135deg, var(--color-deep-amber) 0%, var(--color-amber-light) 100%);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: 0 4px 20px var(--color-amber-glow);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-confirm-order:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(245, 158, 11, 0.6);
}

.btn-confirm-order:active {
  transform: translateY(0);
}

.glass-card {
  background-color: var(--glass-bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  box-shadow: var(--glass-shadow);
}

/* --------------------------------------------------------------------------
   Modern Footer Grid Styling
   -------------------------------------------------------------------------- */
.site-footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  background-color: #0A0A0A;
  border-top: 1px solid var(--color-border-dark);
  color: var(--color-text-muted);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--space-2xl);
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.footer-logo {
  text-decoration: none;
  margin-bottom: var(--space-sm);
}

.footer-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 320px;
}

.footer-col-title {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-solid-white);
  margin-bottom: var(--space-md);
  position: relative;
  padding-bottom: var(--space-xs);
}

.footer-col-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 30px;
  height: 2px;
  background-color: var(--color-deep-amber);
}

.footer-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--color-deep-amber);
  padding-left: 4px;
}

.social-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  line-height: 1.5;
}

.social-links {
  display: flex;
  gap: var(--space-sm);
}

.social-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-solid-white);
  border: 1px solid var(--glass-border-subtle);
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.social-icon-btn:hover {
  background: var(--color-deep-amber);
  color: var(--color-matte-black);
  border-color: var(--color-deep-amber);
  transform: translateY(-2px);
}

.footer-divider {
  height: 1px;
  background: var(--color-border-dark);
  margin-bottom: var(--space-md);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-sm);
}

.copyright-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
}

/* --------------------------------------------------------------------------
   9. Responsive Breakpoints (Mobile First to Desktop)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --container-padding-mobile: 0.875rem;
    --font-size-3xl: 1.5rem;
    --font-size-4xl: 1.875rem;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    width: 100%;
    background-color: rgba(18, 18, 18, 0.95);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    flex-direction: column;
    align-items: center;
    padding: var(--space-lg) var(--space-md);
    gap: var(--space-md);
    transform: translateY(-150%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
    box-shadow: var(--glass-shadow);
  }

  .main-nav.active,
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    font-size: var(--font-size-md);
    padding: var(--space-xs) var(--space-md);
    width: 100%;
    text-align: center;
    border-radius: var(--radius-sm);
  }

  .nav-link:hover,
  .nav-link.active {
    background-color: rgba(245, 158, 11, 0.1);
  }

  .whatsapp-float-btn {
    bottom: 16px;
    right: 16px;
    width: 52px;
    height: 52px;
    display: flex !important;
  }

  .floating-cart-btn,
  #floating-cart,
  .floating-cart {
    right: 16px;
    top: 50%;
    width: 50px;
    height: 50px;
  }
}

@media (min-width: 769px) {
  :root {
    --header-height: 80px;
    --container-padding-mobile: 2rem;
  }

  .nav-link {
    font-size: var(--font-size-md);
  }

  .products-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
  }
}

/* ==========================================================================
   Digital Invoice Modal Overlay & Print System (Phase 3 Audit Remediation)
   ========================================================================== */
#invoice-modal,
.invoice-modal-overlay,
.invoice-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow-y: auto;
}

#invoice-modal.active,
#invoice-modal.show,
#invoice-modal.open {
  display: flex;
}

.invoice-modal-card,
.invoice-modal-content,
.invoice-card {
  position: relative;
  width: 100%;
  max-width: 550px;
  max-height: 90vh;
  overflow-y: auto;
  margin: auto;
  padding: 32px;
  border-radius: 20px;
  background: linear-gradient(145deg, #161616, #0e0e0e);
  border: 1px solid rgba(245, 158, 11, 0.15);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.02);
  color: #FFFFFF;
}

.invoice-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.15);
}

.invoice-brand h2 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #FFFFFF;
  margin: 0 0 4px 0;
}

.invoice-id {
  font-size: 0.875rem;
  color: #F59E0B;
  font-family: monospace;
  font-weight: 600;
  letter-spacing: 0.05em;
}

#btn-close-x,
.close-modal-x {
  min-height: 48px;
  min-width: 48px;
  padding: 8px;
  font-size: 1.5rem;
  color: #9CA3AF;
  background: transparent;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: color 0.2s ease;
}

#btn-close-x:hover,
.close-modal-x:hover {
  color: #F59E0B;
}

.invoice-customer,
.customer-details,
.invoice-address {
  margin-bottom: 24px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.invoice-customer h3 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  color: #9CA3AF;
  margin-bottom: 12px;
}

.invoice-customer p {
  font-size: 0.95rem;
  color: #E5E7EB;
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
}

.invoice-customer p strong {
  font-weight: 500;
  color: #9CA3AF;
}

.invoice-items-container {
  margin-bottom: 16px;
  overflow-x: auto;
}

.invoice-table,
.invoice-items,
.invoice-summary {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.invoice-table th,
.invoice-table td {
  padding: 12px 12px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.invoice-table th {
  color: #9CA3AF;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  background: transparent;
  border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.invoice-table td {
  color: #E5E7EB;
  font-size: 0.95rem;
}

.invoice-total,
.invoice-total-amount,
.total-bill {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.125rem;
  font-weight: 500;
  padding: 20px 16px;
  background: rgba(245, 158, 11, 0.05);
  border-radius: 12px;
  border: 1px solid rgba(245, 158, 11, 0.15);
  margin-bottom: 24px;
}

.invoice-total span:first-child {
  color: #E5E7EB;
}

.invoice-total .total-price,
.invoice-total .total-amount {
  color: #F59E0B;
  font-size: 1.5rem;
  font-weight: 800;
}

.redirect-countdown-box,
.redirect-countdown,
.countdown-timer {
  text-align: center;
  margin-bottom: 16px;
  padding: 10px;
  background: rgba(245, 158, 11, 0.08);
  border-radius: 8px;
  border: 1px dashed rgba(245, 158, 11, 0.3);
}

.countdown-text,
#redirect-countdown-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: #F59E0B;
}

.invoice-modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

#btn-go-whatsapp,
#btn-download-invoice,
#btn-cancel-modal,
.btn-primary-whatsapp,
.btn-secondary-download,
.btn-cancel-modal,
.btn-go-whatsapp,
.btn-download-invoice,
.invoice-modal button {
  min-height: 48px;
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 700;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 100%;
  transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

#btn-go-whatsapp,
.btn-primary-whatsapp,
.btn-go-whatsapp {
  background: #25D366;
  color: #FFFFFF;
  border: none;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

#btn-go-whatsapp:hover,
.btn-primary-whatsapp:hover,
.btn-go-whatsapp:hover {
  background: #22c35e;
  transform: translateY(-2px);
}

#btn-download-invoice,
.btn-secondary-download,
.btn-download-invoice {
  background: rgba(245, 158, 11, 0.15);
  color: #F59E0B;
  border: 1px solid #F59E0B;
}

#btn-download-invoice:hover,
.btn-secondary-download:hover,
.btn-download-invoice:hover {
  background: rgba(245, 158, 11, 0.25);
  transform: translateY(-2px);
}

#btn-cancel-modal,
.btn-cancel-modal {
  background: rgba(255, 255, 255, 0.05);
  color: #9CA3AF;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

#btn-cancel-modal:hover,
.btn-cancel-modal:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
}

@media print {
  body * {
    visibility: hidden;
  }
  #invoice-modal,
  #invoice-modal * {
    visibility: visible;
  }
  #invoice-modal {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: auto;
    background: #FFFFFF !important;
    color: #000000 !important;
    display: block !important;
  }
  .invoice-modal-card,
  .invoice-modal-content {
    background: #FFFFFF !important;
    color: #000000 !important;
    border: 1px solid #000000 !important;
    box-shadow: none !important;
    max-width: 100% !important;
  }
  #btn-close-x,
  .close-modal-x,
  .invoice-modal-actions,
  .redirect-countdown-box,
  .redirect-countdown,
  .countdown-timer {
    display: none !important;
  }
  .invoice-table th,
  .invoice-table td {
    color: #000000 !important;
    border-bottom: 1px solid #CCCCCC !important;
  }
  .invoice-customer h3,
  .invoice-table th,
  .invoice-total .total-price,
  .invoice-total .total-amount {
    color: #000000 !important;
  }
  }
}

/* ==========================================================================
   QA Layout Shift & Flexbox Fixes (Audit Remediation)
   ========================================================================== */
* {
  overflow-wrap: break-word;
  word-wrap: break-word;
}
.social-links, .contact-info-item, .footer-nav, .product-actions, .giveaway-prizes, .main-nav {
  flex-wrap: wrap;
}
.about-card, .contact-highlight-card, .checkout-card, .product-card, .giveaway-banner {
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}
.footer-grid, .about-grid, .contact-grid, .checkout-grid, .products-grid {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}
img, svg, canvas {
  max-width: 100%;
  height: auto;
}
.hero-headline, .section-title, .brand-title, .about-card-title, .contact-highlight-title, .contact-number {
  word-break: break-word;
}
.form-input, .form-textarea, .btn-confirm-order, .btn-whatsapp-chat, .cta-button, .btn-add-cart, .btn-order-now {
  max-width: 100%;
  box-sizing: border-box;
}