@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;600;700;800&family=Inter:wght@400;600;700;800&display=swap');

:root {
  --bg-color: #f8fafc;
  --bg-secondary: #ffffff;
  --text-main: #0f172a;
  --text-muted: #475569;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --secondary: #9333ea;
  --accent: #0ea5e9;
  --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
  --gradient-hover: linear-gradient(135deg, var(--primary-hover), var(--secondary));
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
  --font-ar: 'Cairo', sans-serif;
  --font-en: 'Inter', sans-serif;
  --font-current: var(--font-ar);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-width: 1200px;
}

body.dark-mode {
  --bg-color: #0b0f19;
  --bg-secondary: #111827;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

body.lang-en {
  --font-current: var(--font-en);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-current);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition), color var(--transition);
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; border-radius: var(--radius-sm); }

.container {
  width: 100%; max-width: var(--container-width);
  margin: 0 auto; padding: 0 20px;
}

.section { padding: 100px 0; position: relative; }
.section-title {
  text-align: center; font-size: 2.5rem; font-weight: 800;
  margin-bottom: 50px; background: var(--gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  display: inline-block; width: 100%;
}

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

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; font-family: inherit; font-weight: 700;
  font-size: 1rem; border-radius: var(--radius-full);
  cursor: pointer; transition: var(--transition);
  border: none; gap: 8px;
}
.btn-primary {
  background: var(--gradient); color: #fff;
  box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
}
.btn-primary:hover {
  transform: translateY(-2px); box-shadow: 0 8px 25px rgba(79, 70, 229, 0.6);
  background: var(--gradient-hover);
}
.btn-outline {
  background: transparent; color: var(--text-main);
  border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; }

.icon-btn {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  color: var(--text-main); width: 40px; height: 40px;
  border-radius: 50%; display: flex; align-items: center;
  justify-content: center; cursor: pointer; transition: var(--transition);
}
.icon-btn:hover { background: var(--primary); color: #fff; }

.loader {
  position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
  background-color: var(--bg-color); display: flex;
  justify-content: center; align-items: center;
  z-index: 9999; transition: opacity 0.5s ease;
}
.loader.hidden { opacity: 0; pointer-events: none; }
.spinner {
  width: 50px; height: 50px; border: 5px solid var(--glass-border);
  border-top-color: var(--primary); border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.navbar {
  position: fixed; top: 0; left: 0; width: 100%;
  padding: 20px 0; z-index: 1000; transition: var(--transition);
}
.navbar.scrolled {
  padding: 15px 0; background: var(--glass-bg);
  backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid var(--glass-border); box-shadow: var(--glass-shadow);
}
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.8rem; letter-spacing: 1px; }
.nav-menu { display: flex; align-items: center; gap: 30px; }
.nav-list { display: flex; gap: 25px; }
.nav-link { font-weight: 600; font-size: 1rem; position: relative; padding-bottom: 5px; }
.nav-link::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 2px; background: var(--gradient); transition: var(--transition);
}
.nav-link:hover::after { width: 100%; }
.nav-actions { display: flex; gap: 15px; align-items: center; }
.lang-switch { font-weight: 700; font-size: 0.9rem; }
.nav-toggle { display: none; font-size: 1.5rem; cursor: pointer; color: var(--text-main); }

.hero-section {
  min-height: 100vh; display: flex; align-items: center;
  padding-top: 80px; position: relative; overflow: hidden;
}
.hero-bg-shape {
  position: absolute; border-radius: 50%; filter: blur(100px);
  z-index: -1; opacity: 0.6;
}
.shape-1 { width: 400px; height: 400px; background: var(--primary); top: -100px; right: -100px; }
.shape-2 { width: 300px; height: 300px; background: var(--secondary); bottom: 100px; left: -50px; }
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }
.hero-title { font-size: 3.5rem; font-weight: 800; margin-bottom: 25px; line-height: 1.2; }
.hero-subtitle { font-size: 1.25rem; color: var(--text-muted); margin-bottom: 40px; }
.hero-btns { display: flex; gap: 20px; justify-content: center; }

.about-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.about-card {
  background: var(--glass-bg); backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md);
  padding: 30px; transition: var(--transition);
}
.about-card:hover {
  transform: translateY(-5px); box-shadow: var(--glass-shadow);
  border-color: rgba(255, 255, 255, 0.2);
}
.about-icon {
  font-size: 2.5rem; color: var(--primary); margin-bottom: 20px;
  background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.about-card h3 { font-size: 1.3rem; margin-bottom: 15px; }
.about-card p { color: var(--text-muted); }

.services-section { background-color: var(--bg-secondary); }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.service-card {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius-md); padding: 40px 30px; text-align: center;
  transition: var(--transition); position: relative; overflow: hidden; z-index: 1;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 0;
  background: var(--gradient); z-index: -1; transition: height 0.4s ease; opacity: 0.1;
}
.service-card:hover { transform: translateY(-10px); border-color: var(--primary); }
.service-card:hover::before { height: 100%; }
.service-icon { font-size: 3rem; color: var(--accent); margin-bottom: 20px; }
.service-card h3 { font-size: 1.4rem; margin-bottom: 15px; }
.service-card p { color: var(--text-muted); }

.portfolio-filter { display: flex; justify-content: center; gap: 15px; margin-bottom: 40px; flex-wrap: wrap; }
.filter-btn {
  background: transparent; border: 1px solid var(--glass-border);
  padding: 8px 20px; border-radius: var(--radius-full);
  color: var(--text-muted); cursor: pointer; font-family: inherit; font-weight: 600; transition: var(--transition);
}
.filter-btn:hover, .filter-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.portfolio-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
.portfolio-item {
  position: relative; border-radius: var(--radius-md); overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2); transition: var(--transition);
}
.portfolio-item img {
  width: 100%; height: 250px; object-fit: cover; transition: transform 0.5s ease; display: block;
}
.portfolio-overlay {
  position: absolute; bottom: -100%; left: 0; width: 100%; padding: 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.9), transparent); transition: bottom 0.4s ease;
}
.portfolio-item:hover img { transform: scale(1.1); }
.portfolio-item:hover .portfolio-overlay { bottom: 0; }
.portfolio-overlay h3 { color: #fff; font-size: 1.3rem; margin-bottom: 5px; }
.portfolio-overlay span { color: var(--accent); font-size: 0.9rem; font-weight: 600; }

.pricing-section { background-color: var(--bg-secondary); }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; align-items: center; }
.pricing-card {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius-md); padding: 40px; text-align: center;
  transition: var(--transition); position: relative;
}
.pricing-card.popular {
  border-color: var(--primary); transform: scale(1.05);
  box-shadow: 0 10px 40px rgba(79, 70, 229, 0.2); background: rgba(255, 255, 255, 0.05);
}
.popular-badge {
  position: absolute; top: 0; right: 50%; transform: translate(50%, -50%);
  background: var(--gradient); color: #fff; padding: 5px 15px;
  border-radius: var(--radius-full); font-size: 0.85rem; font-weight: 700;
}
.pricing-header h3 { font-size: 1.5rem; margin-bottom: 15px; }
.price { font-size: 3rem; font-weight: 800; color: var(--primary); margin-bottom: 25px; }
.price span { font-size: 1rem; color: var(--text-muted); font-weight: 400; }
.pricing-features { margin-bottom: 30px; text-align: right; }
html[dir="ltr"] .pricing-features { text-align: left; }
.pricing-features li { margin-bottom: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 10px; }
.pricing-features li i { color: #10b981; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-info { display: flex; flex-direction: column; gap: 30px; }
.info-item {
  display: flex; align-items: center; gap: 20px; background: var(--glass-bg);
  padding: 20px; border-radius: var(--radius-md); border: 1px solid var(--glass-border);
}
.info-item i { font-size: 1.8rem; color: var(--primary); }
.info-text h4 { font-size: 1.1rem; margin-bottom: 5px; }
.info-text p { color: var(--text-muted); }

.contact-form {
  background: var(--glass-bg); padding: 40px; border-radius: var(--radius-md); border: 1px solid var(--glass-border);
}
.form-group { margin-bottom: 20px; }
.form-control {
  width: 100%; padding: 15px; background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border); border-radius: var(--radius-sm);
  color: var(--text-main); font-family: inherit; font-size: 1rem; transition: var(--transition);
}
.form-control:focus { outline: none; border-color: var(--primary); background: rgba(255, 255, 255, 0.1); }
textarea.form-control { resize: vertical; min-height: 150px; }

.footer { background-color: var(--bg-secondary); border-top: 1px solid var(--glass-border); padding: 60px 0 20px; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; margin-bottom: 40px; }
.footer-col h3 { font-size: 1.5rem; margin-bottom: 20px; color: var(--primary); }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-muted); }
.footer-links a:hover { color: var(--primary); padding-right: 5px; }
html[dir="ltr"] .footer-links a:hover { padding-right: 0; padding-left: 5px; }

.social-links { display: flex; gap: 15px; margin-top: 20px; }
.social-links a {
  display: flex; align-items: center; justify-content: center; width: 40px; height: 40px;
  border-radius: 50%; background: var(--glass-bg); border: 1px solid var(--glass-border);
  color: var(--text-muted); transition: var(--transition);
}
.social-links a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }

.footer-bottom {
  text-align: center; padding-top: 20px; border-top: 1px solid var(--glass-border);
  color: var(--text-muted); font-size: 0.9rem;
}
.footer-brand { font-weight: 700; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-up.in-view { opacity: 1; transform: translateY(0); }

@media (max-width: 992px) {
  .hero-title { font-size: 3rem; }
  .contact-grid { grid-template-columns: 1fr; }
  .pricing-card.popular { transform: none; }
}

@media (max-width: 768px) {
  .nav-menu {
    position: absolute; top: 70px; left: 0; width: 100%; background: var(--bg-secondary);
    flex-direction: column; padding: 20px; box-shadow: var(--glass-shadow);
    clip-path: polygon(0 0, 100% 0, 100% 0, 0 0); transition: clip-path 0.4s ease-in-out; align-items: center;
  }
  .nav-menu.active { clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%); }
  .nav-list { flex-direction: column; align-items: center; width: 100%; gap: 15px; }
  .nav-toggle { display: block; }
  .hero-title { font-size: 2.2rem; }
  .about-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-btns { flex-direction: column; }
  .btn { width: 100%; }
}