/* ============================================
   BOXSY PREMIUM PACKAGING - Design System
   ============================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Tajawal:wght@300;400;500;700;800;900&display=swap');

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Colors */
  --color-primary: #0F3D2E;
  --color-primary-light: #1a5c45;
  --color-primary-dark: #0a2b1f;
  --color-secondary: #D6C6A3;
  --color-secondary-light: #e8dcc5;
  --color-secondary-dark: #c4b08a;
  --color-accent: #684E3D;
  --color-accent-light: #8a6b56;
  --color-gold: #BFA076;
  --color-gold-light: #d4bc9a;
  --color-gold-dark: #a88a60;
  
  /* Neutrals */
  --color-white: #FFFFFF;
  --color-off-white: #F8F6F1;
  --color-light-gray: #F0EDE6;
  --color-gray: #9CA3AF;
  --color-dark-gray: #4B5563;
  --color-black: #1A1A1A;
  
  /* Functional */
  --color-success: #22C55E;
  --color-error: #EF4444;
  --color-warning: #F59E0B;
  --color-info: #3B82F6;
  
  /* Typography */
  --font-arabic: 'Tajawal', sans-serif;
  --font-latin: 'Inter', sans-serif;
  --font-body: var(--font-arabic);
  
  /* Font Sizes */
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 1.875rem;
  --fs-3xl: 2.25rem;
  --fs-4xl: 3rem;
  --fs-5xl: 3.75rem;
  --fs-6xl: 4.5rem;
  
  /* Font Weights */
  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;
  --fw-black: 900;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.05);
  --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,0.15);
  --shadow-gold: 0 4px 14px rgba(191,160,118,0.3);
  --shadow-primary: 0 4px 14px rgba(15,61,46,0.2);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;
  
  /* Layout */
  --container-max: 1280px;
  --header-height: 80px;
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-regular);
  line-height: 1.7;
  color: var(--color-black);
  background-color: var(--color-off-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* RTL Support */
[dir="rtl"] body {
  font-family: var(--font-arabic);
}

[dir="ltr"] body {
  font-family: var(--font-latin);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--fw-bold);
  line-height: 1.3;
  color: var(--color-primary);
}

h1 { font-size: var(--fs-5xl); }
h2 { font-size: var(--fs-4xl); }
h3 { font-size: var(--fs-3xl); }
h4 { font-size: var(--fs-2xl); }
h5 { font-size: var(--fs-xl); }
h6 { font-size: var(--fs-lg); }

p {
  margin-bottom: var(--space-4);
  color: var(--color-dark-gray);
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  outline: none;
  font-family: inherit;
  font-size: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-24) 0;
}

.section--sm {
  padding: var(--space-16) 0;
}

.section--lg {
  padding: var(--space-32) 0;
}

/* Flexbox */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-10 { gap: var(--space-10); }

/* Grid */
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Text */
.text-center { text-align: center; }
.text-start { text-align: start; }
.text-end { text-align: end; }

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-header h2 {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-extrabold);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.section-header p {
  font-size: var(--fs-lg);
  color: var(--color-dark-gray);
  max-width: 600px;
  margin: 0 auto;
}

.section-header__line {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-gold-dark));
  margin: var(--space-4) auto 0;
  border-radius: var(--radius-full);
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-light-gray);
}

::-webkit-scrollbar-thumb {
  background: var(--color-gold);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gold-dark);
}

/* --- Selection --- */
::selection {
  background: var(--color-primary);
  color: var(--color-white);
}

/* --- Page Loader --- */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--color-primary);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.page-loader__spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(255,255,255,0.15);
  border-top-color: var(--color-gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

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

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: transform, opacity;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
  will-change: auto;
}

.reveal-left {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: transform, opacity;
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
  will-change: auto;
}

.reveal-right {
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: transform, opacity;
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
  will-change: auto;
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: transform, opacity;
}

.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
  will-change: auto;
}

/* Stagger delays for children */
.stagger > *:nth-child(1) { transition-delay: 0ms; }
.stagger > *:nth-child(2) { transition-delay: 100ms; }
.stagger > *:nth-child(3) { transition-delay: 200ms; }
.stagger > *:nth-child(4) { transition-delay: 300ms; }
.stagger > *:nth-child(5) { transition-delay: 400ms; }
.stagger > *:nth-child(6) { transition-delay: 500ms; }
.stagger > *:nth-child(7) { transition-delay: 600ms; }
.stagger > *:nth-child(8) { transition-delay: 700ms; }