/* ================= GLOBAL STYLES ================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #ec4899;
  --accent: #06b6d4;
  --dark-bg: #0f172a;
  --darker-bg: #020617;
  --light-text: #f8fafc;
  --gray-text: #cbd5e1;
  --card-bg: #1e293b;
  --border-color: #334155;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--darker-bg);
  color: var(--light-text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ================= NAVBAR ================= */
.navbar {
  position: sticky;
  top: 0;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  z-index: 1000;
  border-bottom: 1px solid rgba(100, 102, 241, 0.1);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-menu {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--gray-text);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--primary);
}

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

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

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--primary);
  margin: 5px 0;
  transition: all 0.3s ease;
  border-radius: 2px;
}

/* ================= HERO SECTION ================= */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 50%, rgba(99, 102, 241, 0.1) 100%);
  display: flex;
  align-items: center;
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.2) 0%, transparent 70%);
  top: -200px;
  right: -200px;
  animation: float 6s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, transparent 70%);
  bottom: -150px;
  left: -150px;
  animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(30px);
  }
}

.hero-content {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--light-text);
}

.highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 1rem;
  font-weight: 600;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--gray-text);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary:hover {
  background: rgba(99, 102, 241, 0.1);
  transform: translateY(-3px);
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
}

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

.social-links a {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: rgba(99, 102, 241, 0.1);
  border: 2px solid var(--primary);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.social-links a:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.hero-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-circle {
  position: relative;
  width: 350px;
  height: 350px;
}

.profile-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 5px solid var(--primary);
  box-shadow: 0 20px 60px rgba(99, 102, 241, 0.3);
  animation: profilePop 0.6s ease-out;
}

@keyframes profilePop {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.circle-animation {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 3px solid transparent;
  border-top-color: var(--secondary);
  border-right-color: var(--accent);
  top: -10px;
  left: -10px;
  animation: rotate 3s linear infinite;
}

@keyframes rotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* ================= SECTIONS ================= */
.section {
  padding: 6rem 2rem;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 4rem;
  color: var(--light-text);
  position: relative;
  padding-bottom: 1rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

/* ================= ABOUT SECTION ================= */
.about-section {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, transparent 100%);
}

.about-content {
  display: grid;
  gap: 3rem;
}

.about-text p {
  font-size: 1.1rem;
  color: var(--gray-text);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.about-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.info-item {
  background: rgba(99, 102, 241, 0.1);
  padding: 2rem;
  border-radius: 12px;
  border-left: 4px solid var(--primary);
}

.info-item h4 {
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.info-item p {
  color: var(--gray-text);
  margin-bottom: 0;
}

/* ================= SKILLS SECTION ================= */
.skills-section {
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.05) 0%, transparent 100%);
}

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

.skill-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  text-align: center;
}

.skill-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
  background: rgba(99, 102, 241, 0.05);
}

.skill-icon {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 1rem;
  display: flex;
  justify-content: center;
}

.skill-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--light-text);
}

.skill-card p {
  color: var(--gray-text);
  line-height: 1.6;
}

/* ================= PROJECTS SECTION ================= */
.projects-section {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.05) 0%, transparent 100%);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
  box-shadow: 0 25px 50px rgba(99, 102, 241, 0.15);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
  gap: 1rem;
}

.project-card h3 {
  font-size: 1.3rem;
  color: var(--light-text);
}

.project-badge {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

.project-card p {
  color: var(--gray-text);
  margin-bottom: 1.5rem;
  flex-grow: 1;
  line-height: 1.6;
}

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

.tech-tag {
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

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

.project-links .btn {
  flex: 1;
  justify-content: center;
  min-width: 120px;
}

/* ================= EXPERIENCE SECTION ================= */
.experience-section {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, transparent 100%);
}

.timeline {
  position: relative;
  padding: 2rem 0;
}

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

.timeline-item {
  margin-bottom: 3rem;
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.timeline-item:nth-child(even) {
  direction: rtl;
}

.timeline-item:nth-child(even) .timeline-content {
  direction: ltr;
}

.timeline-marker {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  background: var(--primary);
  border-radius: 50%;
  border: 4px solid var(--darker-bg);
  z-index: 1;
}

.timeline-content {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.timeline-content:hover {
  border-color: var(--primary);
  box-shadow: 0 15px 35px rgba(99, 102, 241, 0.15);
  transform: translateY(-5px);
}

.timeline-content h3 {
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.company {
  color: var(--secondary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.duration {
  color: var(--gray-text);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.experience-highlights {
  list-style: none;
  color: var(--gray-text);
  line-height: 1.8;
}

.experience-highlights li {
  padding-left: 1.5rem;
  position: relative;
  margin-bottom: 0.5rem;
}

.experience-highlights li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: bold;
}

/* ================= CERTIFICATIONS SECTION ================= */
.certifications-section {
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.05) 0%, transparent 100%);
}

.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.cert-item {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all 0.3s ease;
}

.cert-item:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
  box-shadow: 0 15px 35px rgba(6, 182, 212, 0.15);
}

.cert-item i {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.cert-item h4 {
  font-size: 1.1rem;
  color: var(--light-text);
  margin-bottom: 0.5rem;
}

.cert-item p {
  color: var(--gray-text);
  margin-bottom: 0;
}

/* ================= CONTACT SECTION ================= */
.contact-section {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.05) 0%, transparent 100%);
  text-align: center;
}

.contact-intro {
  font-size: 1.2rem;
  color: var(--gray-text);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
  text-align: left;
}

.contact-info {
  display: grid;
  gap: 2rem;
}

.contact-item {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.contact-item i {
  font-size: 1.5rem;
  color: var(--primary);
  margin-top: 0.25rem;
}

.contact-item h4 {
  color: var(--light-text);
  margin-bottom: 0.3rem;
}

.contact-item p,
.contact-item a {
  color: var(--gray-text);
  text-decoration: none;
  transition: color 0.3s ease;
}

.contact-item a:hover {
  color: var(--primary);
}

.contact-social {
  text-align: center;
}

.contact-social h3 {
  color: var(--light-text);
  margin-bottom: 1.5rem;
}

.social-icons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.social-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(99, 102, 241, 0.1);
  border: 2px solid var(--primary);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: all 0.3s ease;
  text-decoration: none;
}

.social-icon:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(99, 102, 241, 0.3);
}

/* ================= FOOTER ================= */
.footer {
  background: var(--darker-bg);
  border-top: 1px solid var(--border-color);
  padding: 2rem;
  text-align: center;
}

.footer-content p {
  color: var(--gray-text);
}

.footer-content i {
  color: var(--secondary);
  animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
}

/* ================= RESPONSIVE ================= */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: 70px;
    right: 0;
    background: var(--dark-bg);
    flex-direction: column;
    width: 100%;
    text-align: center;
    padding: 2rem;
    gap: 1rem;
    display: none;
    border-bottom: 1px solid var(--border-color);
  }

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

  .hero {
    min-height: auto;
    padding: 4rem 0;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-text h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .hero-image {
    order: -1;
  }

  .profile-circle {
    width: 250px;
    height: 250px;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .contact-item {
    justify-content: center;
  }

  .timeline::before {
    left: 10px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    padding-left: 50px;
  }

  .timeline-item:nth-child(even) {
    direction: ltr;
  }

  .timeline-marker {
    left: 0;
  }

  .social-icons {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-text h1 {
    font-size: 1.5rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .profile-circle {
    width: 200px;
    height: 200px;
  }

  .hero::before {
    width: 300px;
    height: 300px;
  }

  .section {
    padding: 3rem 1rem;
  }

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

  .contact-social .social-icons {
    flex-direction: column;
    gap: 1rem;
  }

  .social-icon {
    width: 100%;
  }
}