@import url("/fonts/Cairo-VariableFont_slnt\,wght.ttf");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #6366f1;
  --secondary: #ec4899;
  --accent: #8b5cf6;
  --dark: #0f172a;
  --light: #f8fafc;
  --gray: #64748b;
  --success: #10b981;
  --warning: #f59e0b;
}

body {
  font-family: "Cairo", sans-serif;
  background: var(--dark);
  color: var(--light);
  overflow-x: hidden;
  transition: all 0.3s ease;
}

/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s, visibility 0.5s;
}

.loading-screen.hide {
  opacity: 0;
  visibility: hidden;
}

.loader {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Navbar */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  transition: all 0.3s;
  background: transparent;
}

nav.scrolled {
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.logo {
  font-size: 1.8rem;
  font-weight: bold;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--light);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: color 0.3s;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.3s;
}

.nav-links a:hover::after {
  width: 100%;
}

.theme-toggle {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  padding: 0.5rem;
  border-radius: 50%;
  cursor: pointer;
  color: var(--light);
  font-size: 1.2rem;
  transition: all 0.3s;
}

.theme-toggle:hover {
  background: var(--primary);
  transform: rotate(180deg);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 0 5%;
}

.particles {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

.particle {
  position: absolute;
  background: rgba(99, 102, 241, 0.5);
  border-radius: 50%;
  animation: float 20s infinite;
}

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

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 1s ease;
}

.typing-text {
  font-size: 1.5rem;
  color: var(--gray);
  margin-bottom: 2rem;
  min-height: 40px;
}

.cursor {
  display: inline-block;
  width: 2px;
  height: 1.5rem;
  background: var(--secondary);
  animation: blink 0.7s infinite;
  margin-right: 5px;
}

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0;
  }
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.6);
}

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

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

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

/* Stats Section */
.stats {
  padding: 4rem 5%;
  background: rgba(99, 102, 241, 0.05);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.stat-card {
  text-align: center;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s;
}

.stat-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
}

.stat-number {
  font-size: 3rem;
  font-weight: bold;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  color: var(--gray);
  margin-top: 0.5rem;
}

/* About Section */
.about {
  padding: 6rem 5%;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 3rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  color: var(--gray);
  margin-bottom: 4rem;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  color: var(--gray);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.about-image {
  position: relative;
  text-align: center;
}

.profile-img {
  width: 100%;
  max-width: 250px;
  height: 250px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary);
  box-shadow: 0 20px 60px rgba(99, 102, 241, 0.3);
  transition: all 0.3s;
}

.profile-img:hover {
  transform: scale(1.05) rotate(2deg);
}

/* Timeline Section */
.timeline {
  padding: 6rem 5%;
  background: rgba(99, 102, 241, 0.05);
}

.timeline-container {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
}

.timeline-container::before {
  content: "";
  position: absolute;
  right: 50%;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  transform: translateX(50%);
}

.timeline-item {
  margin-bottom: 3rem;
  position: relative;
  width: 45%;
}

.timeline-item:nth-child(odd) {
  margin-right: auto;
  padding-left: 3rem;
}

.timeline-item:nth-child(even) {
  margin-left: auto;
  padding-right: 3rem;
  text-align: left;
}

.timeline-dot {
  position: absolute;
  right: -11px;
  width: 20px;
  height: 20px;
  background: var(--primary);
  border-radius: 50%;
  border: 4px solid var(--dark);
}

.timeline-item:nth-child(even) .timeline-dot {
  right: auto;
  left: -11px;
}

.timeline-content {
  background: rgba(255, 255, 255, 0.05);
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s;
}

.timeline-content:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(-10px);
}

.timeline-item:nth-child(even) .timeline-content:hover {
  transform: translateX(10px);
}

.timeline-date {
  color: var(--secondary);
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.timeline-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.timeline-desc {
  color: var(--gray);
}

/* Projects Section */
.projects {
  padding: 6rem 5%;
  max-width: 1400px;
  margin: 0 auto;
}

.project-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.7rem 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--light);
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.3s;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s;
  cursor: pointer;
}

.project-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
  box-shadow: 0 20px 60px rgba(99, 102, 241, 0.3);
}

.project-img {
  width: 100%;
  height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  position: relative;
  overflow: hidden;
}

.project-img i {
  position: relative;
  z-index: 1;
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  opacity: 0.9;
}

.project-info {
  padding: 2rem;
}

.project-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.project-desc {
  color: var(--gray);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.project-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.tag {
  background: rgba(99, 102, 241, 0.2);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--primary);
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-link {
  padding: 0.6rem 1.2rem;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.project-link:hover {
  background: var(--secondary);
}

/* Skills Section */
.skills {
  padding: 6rem 5%;
  background: rgba(99, 102, 241, 0.05);
}

.skills-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.skill-category {
  background: rgba(255, 255, 255, 0.05);
  padding: 2rem;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s;
}

.skill-category:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
}

.skill-category h3 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  text-align: center;
  color: var(--primary);
}

.skill-item {
  margin-bottom: 2rem;
}

.skill-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.skill-name {
  font-weight: 600;
}

.skill-percentage {
  color: var(--secondary);
}

.skill-bar {
  height: 10px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 10px;
  transition: width 1.5s ease;
  width: 0;
}

/* Contact Section */
.contact {
  padding: 6rem 5%;
  max-width: 1200px;
  margin: 0 auto;
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s;
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--primary);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

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

.form-group label {
  font-weight: 600;
}

.form-control {
  padding: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: var(--light);
  font-size: 1rem;
  transition: all 0.3s;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.08);
}

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

/* Footer */
footer {
  padding: 3rem 5%;
  background: rgba(0, 0, 0, 0.3);
  text-align: center;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.social-link {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--light);
  text-decoration: none;
  transition: all 0.3s;
}

.social-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: translateY(-5px);
}

.scroll-top {
  position: fixed;
  bottom: 30px;
  left: 30px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  z-index: 999;
}

.scroll-top.show {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-5px);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .about-content,
  .contact-container {
    grid-template-columns: 1fr;
  }

  .timeline-container::before {
    right: 20px;
  }

  .timeline-item {
    width: 100%;
    padding-right: 0;
    padding-left: 60px !important;
  }

  .timeline-dot {
    right: 11px !important;
    left: auto !important;
  }

  .timeline-content:hover {
    transform: translateX(10px) !important;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }
}