:root {
  --bg-color: #0a0a0a;
  --bg-card: #141414;
  --bg-card-hover: #1e1e1e;
  --accent-gold: #D4AF37;
  --accent-gold-dark: #b5952f;
  --secondary-blue: #0a1929;
  --text-main: #ffffff;
  --text-muted: #a0a0a0;
  --border-gold: rgba(212, 175, 55, 0.3);
  
  --font-serif: 'Playfair Display', serif;
  --font-sans: 'Inter', sans-serif;
  --font-arabic-heading: 'Tajawal', sans-serif; 
  --font-arabic-body: 'Tajawal', sans-serif;
  
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  font-family: var(--font-sans);
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

body.lang-ar {
  font-family: var(--font-arabic-body);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  margin: 0 0 1rem 0;
  font-family: var(--font-serif);
}

body.lang-ar h1, body.lang-ar h2, body.lang-ar h3, body.lang-ar h4, body.lang-ar h5, body.lang-ar h6 {
  font-family: var(--font-arabic-heading);
}

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

a:hover {
  color: var(--accent-gold);
}

p {
  margin-bottom: 1.5rem;
  color: var(--text-muted);
}

/* Header & Navigation */
.site-header {
  position: static;
  width: 100%;
  background-color: var(--bg-color);
  padding-bottom: 1rem;
}

.top-bar {
  background-color: #000;
  padding: 0.5rem 2rem;
  display: flex;
  justify-content: flex-end;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

html[dir="rtl"] .top-bar {
  justify-content: flex-end; /* right side */
}

.lang-switcher {
  background: transparent;
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  padding: 0.2rem 1rem;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: var(--transition-smooth);
  font-family: inherit;
}

.lang-switcher:hover {
  background: var(--accent-gold);
  color: #000;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent-gold);
  letter-spacing: 1px;
}

body.lang-ar .logo {
  font-family: var(--font-serif); /* Keep logo serif even in arabic */
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 100;
}

.hamburger .bar {
  width: 30px;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: var(--transition-smooth);
}

.hamburger.active .bar:nth-child(1) {
  transform: translateY(11px) rotate(45deg);
  background-color: var(--accent-gold);
}

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

.hamburger.active .bar:nth-child(3) {
  transform: translateY(-11px) rotate(-45deg);
  background-color: var(--accent-gold);
}

/* Menu */
.mobile-menu {
  position: absolute;
  top: 90px;
  left: 0;
  width: 100%;
  background-color: rgba(10, 10, 10, 0.98);
  backdrop-filter: blur(10px);
  padding: 2rem;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-20px);
  transition: var(--transition-smooth);
  z-index: 99;
  border-bottom: 1px solid var(--border-gold);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: center;
}

.mobile-menu li {
  margin: 1.5rem 0;
}

.mobile-menu a {
  font-size: 1.5rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  position: relative;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  text-align: center;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background-color: var(--accent-gold);
  color: #000;
}

.btn-primary:hover {
  background-color: var(--accent-gold-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.btn-outline {
  background-color: transparent;
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold);
}

.btn-outline:hover {
  background-color: rgba(212, 175, 55, 0.1);
  transform: translateY(-2px);
}

.btn-disabled {
  background-color: transparent;
  color: var(--text-muted);
  border: 1px solid #444;
  cursor: default;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 4rem 2rem;
  background: radial-gradient(circle at center, var(--secondary-blue) 0%, var(--bg-color) 70%);
}

.hero::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url('https://images.unsplash.com/photo-1618005182384-a83a8bd57fbe?q=80&w=2564&auto=format&fit=crop') no-repeat center center/cover;
  opacity: 0.1;
  z-index: 0;
  mix-blend-mode: overlay;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  animation: fadeIn 1.5s ease-out;
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--text-main);
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  color: #d0d0d0;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Sections */
.section {
  padding: 5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  color: var(--accent-gold);
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 2px;
  background-color: var(--accent-gold);
}

/* Grid & Cards (Future Projects) */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 100%;
  background: linear-gradient(180deg, transparent 50%, rgba(10,25,41,0.5) 100%);
  z-index: 1;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-10px);
  border-color: var(--accent-gold);
  box-shadow: 0 20px 40px rgba(0,0,0,0.7), 0 0 20px rgba(212,175,55,0.1);
  background-color: var(--bg-card-hover);
}

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.card-content {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 2;
}

.card-content h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-main);
}

.card-content p {
  font-size: 0.95rem;
  margin-bottom: 2rem;
  flex-grow: 1;
}

/* Approach Page Elements */
.approach-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.approach-content h3 {
  color: var(--accent-gold);
  margin-bottom: 2rem;
  font-size: 1.8rem;
}

.approach-content p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 2rem;
}

.diagram-placeholder {
  width: 100%;
  max-width: 600px;
  height: 300px;
  margin: 3rem auto;
  border: 1px dashed var(--accent-gold);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(212, 175, 55, 0.05);
}

/* Contact Page Elements */
.contact-container {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-main);
  font-size: 0.9rem;
}

.form-control {
  width: 100%;
  padding: 1rem;
  background-color: var(--bg-card);
  border: 1px solid #333;
  border-radius: 6px;
  color: var(--text-main);
  font-family: inherit;
  transition: var(--transition-smooth);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.2);
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

.contact-socials {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 3rem;
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #333;
  transition: var(--transition-smooth);
}

.social-icon:hover {
  background-color: var(--accent-gold);
  border-color: var(--accent-gold);
}

.social-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--text-main);
  transition: var(--transition-smooth);
}

.social-icon:hover svg {
  fill: #000;
}

/* Footer */
.site-footer {
  background-color: #050505;
  border-top: 1px solid #1a1a1a;
  padding: 4rem 2rem 2rem;
  margin-top: 4rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
}

.footer-section h4 {
  color: var(--accent-gold);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

.newsletter-form {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.newsletter-form .form-control {
  padding: 0.8rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a {
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--accent-gold);
}

.footer-bottom {
  max-width: 1200px;
  margin: 2rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid #1a1a1a;
  text-align: center;
  color: #555;
  font-size: 0.9rem;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes rotateFluid {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(5%, 5%) rotate(360deg); }
}

/* Media Queries */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  .newsletter-form {
    flex-direction: column;
  }
}