/* ========================================
   نظام التصميم - متجر القفل الذكي
   Design System - Smart Lock E-commerce
   ======================================== */

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

/* ========== CSS Variables ========== */
:root {
  /* Primary Colors - ألوان أساسية */
  --primary-green: #10b981;
  --primary-green-dark: #059669;
  --primary-green-light: #34d399;
  
  --secondary-gold: #f59e0b;
  --secondary-gold-dark: #d97706;
  --secondary-gold-light: #fbbf24;
  
  /* Neutral Colors */
  --dark: #1f2937;
  --dark-light: #374151;
  --gray: #6b7280;
  --gray-light: #9ca3af;
  --light-bg: #f9fafb;
  --white: #ffffff;
  
  /* Status Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-gold: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  --gradient-dark: linear-gradient(135deg, #1f2937 0%, #111827 100%);
  --gradient-hero: linear-gradient(135deg, rgba(16, 185, 129, 0.95) 0%, rgba(5, 150, 105, 0.95) 100%);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Typography */
  --font-primary: 'Cairo', sans-serif;
  --font-secondary: 'Tajawal', sans-serif;
}

/* ========== Reset & Base Styles ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  direction: rtl;
  text-align: right;
  color: var(--dark);
  background-color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

/* ========== Typography ========== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
  color: var(--dark);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--gray);
  font-size: 1.1rem;
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========== Container & Layout ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-2xl) 0;
}

.section-alt {
  background-color: var(--light-bg);
}

/* ========== Grid System ========== */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ========== Buttons ========== */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-primary);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

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

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.btn-secondary {
  background: var(--gradient-gold);
  color: var(--white);
}

.btn-secondary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.btn-outline {
  background: transparent;
  color: var(--primary-green);
  border: 2px solid var(--primary-green);
}

.btn-outline:hover {
  background: var(--primary-green);
  color: var(--white);
}

.btn-large {
  padding: 1.25rem 2.5rem;
  font-size: 1.25rem;
}

/* ========== Cards ========== */
.card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.card-icon {
  width: 70px;
  height: 70px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: 2rem;
  color: var(--white);
  box-shadow: var(--shadow-lg);
}

/* ========== Header & Navigation ========== */
.header {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: var(--spacing-sm) 0;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-link {
  font-weight: 600;
  color: var(--dark);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  transition: var(--transition-base);
}

.nav-link:hover {
  background: var(--light-bg);
  color: var(--primary-green);
}

/* ========== Hero Section ========== */
.hero {
  background: var(--gradient-hero);
  color: var(--white);
  padding: var(--spacing-2xl) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text h1 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.hero-text p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
}

.hero-price {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.price-old {
  font-size: 1.5rem;
  text-decoration: line-through;
  color: rgba(255, 255, 255, 0.7);
}

.price-new {
  font-size: 3rem;
  font-weight: 800;
  color: var(--secondary-gold);
}

.price-currency {
  font-size: 1.5rem;
  color: var(--white);
}

.discount-badge {
  background: var(--gradient-gold);
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1.1rem;
  display: inline-block;
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  animation: pulse 2s infinite;
}

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

.hero-image {
  position: relative;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

/* ========== Features Section ========== */
.features {
  padding: var(--spacing-2xl) 0;
}

.feature-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-2xl);
  border-color: var(--primary-green);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.feature-card h3 {
  color: var(--dark);
  margin-bottom: var(--spacing-sm);
}

/* ========== Specs Table ========== */
.specs-table {
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.spec-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--light-bg);
  transition: var(--transition-base);
}

.spec-row:hover {
  background: var(--light-bg);
}

.spec-row:last-child {
  border-bottom: none;
}

.spec-label {
  padding: var(--spacing-md);
  font-weight: 600;
  color: var(--dark);
  background: rgba(16, 185, 129, 0.05);
}

.spec-value {
  padding: var(--spacing-md);
  color: var(--gray);
}

/* ========== Order Form ========== */
.order-form {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 600px;
  margin: 0 auto;
}

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

.form-label {
  display: block;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: var(--spacing-xs);
}

.form-input {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--light-bg);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 1.1rem;
  transition: var(--transition-base);
  background: var(--light-bg);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-green);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.quantity-selector {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--light-bg);
  padding: 0.5rem;
  border-radius: var(--radius-md);
  width: fit-content;
}

.quantity-btn {
  width: 40px;
  height: 40px;
  background: var(--primary-green);
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.5rem;
  font-weight: 700;
  transition: var(--transition-base);
}

.quantity-btn:hover {
  background: var(--primary-green-dark);
  transform: scale(1.1);
}

.quantity-value {
  min-width: 60px;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
}

/* ========== Blog Section ========== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.blog-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.blog-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-2xl);
}

.blog-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.blog-content {
  padding: var(--spacing-lg);
}

.blog-category {
  display: inline-block;
  background: var(--gradient-primary);
  color: var(--white);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.blog-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--dark);
}

.blog-excerpt {
  color: var(--gray);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.read-more {
  color: var(--primary-green);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-base);
}

.read-more:hover {
  gap: 1rem;
}

/* ========== FAQ Section ========== */
.faq-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 2px solid transparent;
  transition: var(--transition-base);
}

.faq-item:hover {
  border-color: var(--primary-green);
}

.faq-question {
  padding: var(--spacing-md);
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--light-bg);
  transition: var(--transition-base);
}

.faq-question:hover {
  background: rgba(16, 185, 129, 0.1);
}

.faq-answer {
  padding: var(--spacing-md);
  color: var(--gray);
  line-height: 1.8;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

/* ========== Footer ========== */
.footer {
  background: var(--gradient-dark);
  color: rgba(255, 255, 255, 0.9);
  padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.footer-link {
  display: block;
  color: rgba(255, 255, 255, 0.8);
  padding: 0.5rem 0;
  transition: var(--transition-base);
}

.footer-link:hover {
  color: var(--primary-green-light);
  padding-right: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
}

/* ========== Utility Classes ========== */
.text-center {
  text-align: center;
}

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

/* ========== Responsive Design ========== */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .nav-links {
    display: none;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .price-new {
    font-size: 2rem;
  }
  
  .blog-grid {
    grid-template-columns: 1fr;
  }
}

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

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* ========== Print Styles ========== */
@media print {
  .header,
  .footer,
  .btn {
    display: none;
  }
}