/* Custom Properties / Variables */
:root {
  /* Monochromatic Color Palette */
  --bg-color: #ffffff;
  --text-color: #111111;
  --text-muted: #555555;
  --border-color: #e5e5e5;
  --accent-color: #000000;
  --accent-hover: #333333;
  --surface-color: #f9f9f9;
  /* Typography */
  --font-sans: 'Inter', sans-serif;
  --font-serif: 'Inter', sans-serif; /* Unified modern look */
  --font-mono: 'Inter', sans-serif; /* Unified typography */
  --font-ar-sans: 'Cairo', sans-serif;
  --font-ar-display: 'Cairo', sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  
  /* Layout */
  --container-max-width: 1200px;
  --header-height: 80px;
  --border-radius: 4px; /* Clean, minimal */
  --transition: all 0.3s ease;
}

[dir="rtl"] {
  --font-sans: var(--font-ar-sans);
  --font-serif: var(--font-ar-display);
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--text-color);
  background-color: var(--bg-color);
  /* 3D-like Grid Background with depth */
  background-image: 
    radial-gradient(circle at 50% 50%, transparent 10%, var(--bg-color) 100%),
    linear-gradient(to right, rgba(0, 0, 0, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
  background-size: 100% 100%, 40px 40px, 40px 40px;
  background-attachment: fixed;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

main > section:not(:last-child) {
  border-bottom: 1px solid #ddd; /* More visible separator */
}

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

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

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.section-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  margin-bottom: var(--space-xs);
  font-weight: 700;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.125rem;
  margin-bottom: var(--space-lg);
}

/* Typography Extensions */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-color);
  line-height: 1.2;
}

em {
  font-style: italic;
  font-family: var(--font-serif);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 1rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  border-radius: var(--border-radius);
}

.btn-primary {
  background-color: var(--accent-color);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-color);
  border-color: var(--text-color);
}

.btn-secondary:hover {
  background-color: var(--surface-color);
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Header & Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
}

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

.logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

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

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  display: inline-block;
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--text-color);
  transform: scaleX(0);
  transform-origin: bottom right;
  transition: transform 0.3s ease-out;
}

.nav-links a:hover::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

.nav-links a:hover {
  color: var(--text-color);
}

.lang-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.lang-toggle .active {
  font-weight: 700;
  text-decoration: underline;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-color);
}

/* Hero Section */
.hero {
  padding-top: calc(var(--header-height) + var(--space-xl));
  padding-bottom: var(--space-xl);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  margin-bottom: var(--space-sm);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  max-width: 90%;
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
}

.hero-graphic {
  position: relative;
}

.hero-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--border-radius);
  transform: scale(1.1);
}

/* Portfolio Showroom */
.portfolio {
  /* Grid background from body will show through */
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.project-card {
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: transform 0.3s ease;
}

.project-card:hover {
  transform: translateY(-5px);
}

.project-screenshot {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-bottom: 1px solid var(--border-color);
}

.project-content {
  padding: var(--space-sm);
}

.project-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.project-desc {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--space-sm);
}

/* Pricing Section */

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr; /* Mobile first */
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.pricing-card {
  background-color: rgba(255, 255, 255, 0.98);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.pricing-card.recommended {
  border: 2px solid var(--text-color);
  transform: scale(1.02);
}

.pricing-card.recommended:hover {
  transform: scale(1.02) translateY(-5px);
}

.pricing-badge {
  position: absolute;
  top: 0;
  right: var(--space-md);
  transform: translateY(-50%);
  background-color: var(--text-color);
  color: var(--bg-color);
  padding: 0.25rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: bold;
  text-transform: uppercase;
  border-radius: 20px;
}

[dir="rtl"] .pricing-badge {
  right: auto;
  left: var(--space-md);
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-color);
}

.pricing-name {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: bold;
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--space-md);
  flex-grow: 1; /* Pushes the button to the bottom */
}

.pricing-features li {
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  position: relative;
  padding-left: 1.5rem;
  color: var(--text-muted);
}

[dir="rtl"] .pricing-features li {
  padding-left: 0;
  padding-right: 1.5rem;
}

.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--text-color);
  font-weight: bold;
}

[dir="rtl"] .pricing-features li::before {
  left: auto;
  right: 0;
}

.pricing-footer {
  margin-top: auto; /* Ensures it stays at bottom due to flex-col */
}

.btn-full {
  width: 100%;
  min-height: 48px; /* Touch target size */
}

/* About Section */
.about {
  /* Grid background from body will show through */
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-lg);
  align-items: center;
}

.profile-img {
  width: 80%;
  margin: 0 auto;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about-subtitle {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.about-text {
  margin-bottom: var(--space-sm);
  font-size: 1.125rem;
}

/* Footer & Contact */
.footer {
  background-color: var(--text-color);
  color: var(--bg-color);
  padding: var(--space-xl) 0 var(--space-md);
}

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

.footer-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin-bottom: var(--space-xs);
}

.footer-desc {
  color: #999;
  margin-bottom: var(--space-md);
}

.contact-item {
  margin-bottom: var(--space-sm);
  font-size: 1rem;
}

.contact-item strong {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  margin-right: 0.5rem;
  color: #ccc;
}

.contact-item a:hover {
  text-decoration: underline;
}

.form-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #ccc;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  background-color: transparent;
  border: 1px solid #444;
  color: var(--bg-color);
  font-family: var(--font-sans);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--bg-color);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-md);
  border-top: 1px solid #333;
  font-size: 0.875rem;
  color: #666;
}

/* WhatsApp Float */
.whatsapp-float {
  position: fixed;
  bottom: var(--space-md);
  right: var(--space-md);
  background-color: #25D366;
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
  z-index: 100;
  transition: transform 0.3s ease;
}

.whatsapp-float:hover {
  transform: scale(1.1);
}

[dir="rtl"] .whatsapp-float {
  right: auto;
  left: var(--space-md);
}

[dir="rtl"] .contact-item strong {
  margin-right: 0;
  margin-left: 0.5rem;
}

/* Touch Feedback (Active State) for Mobile */
.btn:active {
  transform: scale(0.95) !important;
}

.project-card:active,
.pricing-card:active {
  transform: scale(0.98) !important;
}

/* Responsive Design */
@media (max-width: 992px) {
  .hero-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-card.recommended {
    transform: scale(1);
  }

  .pricing-card.recommended:hover {
    transform: translateY(-5px);
  }
  
  .hero {
    text-align: center;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-graphic {
    margin-top: var(--space-md);
  }
  
  .about-image {
    max-width: 400px;
    margin: 0 auto;
  }
}

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

@media (max-width: 768px) {
  :root {
    --space-xl: 4rem;
    --space-lg: 2rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--bg-color);
    flex-direction: column;
    padding: var(--space-md);
    border-bottom: 1px solid var(--border-color);
  }

  .nav-links.active {
    display: flex;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero-title {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .hero-actions {
    flex-direction: column;
  }
}