@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

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

:root {
  --color-primary: #22D3EE;
  --color-secondary: #64748B;
  --color-accent: #F4F4F4;
  --color-bg-dark: #0F172A;
  --color-bg-medium: #1E293B;
  --color-text-primary: #F4F4F4;
  --color-text-secondary: #94A3B8;
  --color-text-muted: #64748B;
  --font-family: 'Poppins', sans-serif;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 5px 20px rgba(34, 211, 238, 0.3);
  --glow: 0 0 20px rgba(34, 211, 238, 0.4);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--color-bg-dark);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* NAVIGATION */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(30, 41, 59, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(34, 211, 238, 0.2);
  padding: 1rem 0;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-medium);
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  text-decoration: none;
  transition: all 0.3s;
}

.logo:hover {
  background: var(--color-primary);
  transform: scale(1.05);
  box-shadow: var(--glow);
}

.logo:hover .logo-text {
  color: var(--color-bg-dark);
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  transition: color 0.3s;
}

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

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

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-primary);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.3s;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding-top: 80px;
  background: var(--color-bg-dark);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  padding: 2rem;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.2;
  color: var(--color-accent);
}

.gradient-text {
  color: var(--color-primary);
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

.btn {
  padding: 0.875rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
  font-family: var(--font-family);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg-dark);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--glow);
}

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

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-bg-dark);
  transform: translateY(-3px);
}

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

.social-link {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-medium);
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: 50%;
  color: var(--color-primary);
  transition: all 0.3s;
  text-decoration: none;
}

.social-link:hover {
  background: var(--color-primary);
  color: var(--color-bg-dark);
  transform: translateY(-5px);
  box-shadow: var(--glow);
}

/* SECTIONS */
.section {
  padding: 5rem 0;
  position: relative;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-title {
  font-size: 3rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  display: block;
  width: 100%;
  color: var(--color-accent);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: var(--color-primary);
  border-radius: 2px;
}

/* CARDS */
.glass-card {
  background: var(--color-bg-medium);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 15px;
  padding: 2rem;
  transition: all 0.3s;
  box-shadow: var(--shadow);
}

.glass-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-primary);
  box-shadow: var(--glow);
}

/* ABOUT */
.about {
  background: var(--color-bg-medium);
}

.about-content {
  max-width: 900px;
  margin: 0 auto;
}

.about-card {
  text-align: center;
  padding: 3rem;
}

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

.about-text {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.stat-card {
  text-align: center;
  padding: 2rem;
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--color-text-secondary);
  font-size: 1rem;
}

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

.skill-category {
  text-align: center;
  padding: 2.5rem;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.5rem;
}

.category-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: 15px;
  color: var(--color-bg-dark);
  transition: all 0.3s;
}

.skill-category:hover .category-icon {
  transform: scale(1.1);
  box-shadow: var(--glow);
}

.category-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-accent);
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.skill-tag {
  padding: 0.5rem 1.25rem;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: 25px;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.3s;
}

.skill-tag:hover {
  background: var(--color-primary);
  color: var(--color-bg-dark);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* EXPERIENCE */
.experience {
  background: var(--color-bg-medium);
}

.experience-timeline {
  max-width: 900px;
  margin: 0 auto;
}

.experience-card {
  padding: 2.5rem;
}

.experience-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.company-info {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.experience-icon {
  font-size: 2rem;
  color: var(--color-primary);
}

.company-name {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.role-title {
  font-size: 1.125rem;
  color: var(--color-primary);
  font-weight: 500;
}

.experience-meta {
  text-align: right;
}

.experience-period {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.experience-period svg {
  width: 16px;
  height: 16px;
}

.experience-location {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.achievements-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.achievement-item {
  position: relative;
  padding-left: 1.5rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.achievement-item::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-size: 1.25rem;
}

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

.project-card {
  padding: 2.5rem;
  min-height: 400px;
  display: flex;
  flex-direction: column;
}

.project-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.project-header {
  margin-bottom: 1rem;
}

.project-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.project-period {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.project-description {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

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

.tech-tag {
  padding: 0.375rem 0.875rem;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid var(--color-primary);
  border-radius: 20px;
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.project-achievements {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.project-achievements li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.project-achievements li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

/* EDUCATION */
.education {
  background: var(--color-bg-medium);
}

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

.education-card {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 300px;
}

.education-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
}

.institution-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.degree-name {
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: 1rem;
}

.education-meta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.education-grade {
  padding: 0.375rem 0.875rem;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: 20px;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.education-period {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.education-location {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.education-content {
  flex: 1;
}

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

.achievement-card {
  text-align: center;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 350px;
  justify-content: center;
}

.achievement-icon-wrapper {
  width: 80px;
  height: 80px;
  margin: 0 auto;
  background: var(--color-primary);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow);
  transition: all 0.3s;
}

.achievement-card:hover .achievement-icon-wrapper {
  transform: scale(1.1);
}

.achievement-icon {
  font-size: 2.5rem;
  color: var(--color-bg-dark);
}

.achievement-type {
  display: inline-block;
  padding: 0.375rem 1rem;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid var(--color-primary);
  border-radius: 20px;
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.achievement-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-accent);
}

.achievement-description {
  color: var(--color-text-secondary);
  font-size: 1rem;
}

.achievement-details {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* CONTACT */
.contact {
  background: var(--color-bg-medium);
}

.contact-intro {
  text-align: center;
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.contact-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.contact-card {
  text-align: center;
  padding: 2rem;
  text-decoration: none;
  color: inherit;
  display: block;
}

.contact-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.contact-label {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.contact-value {
  color: var(--color-accent);
  font-size: 1.125rem;
  font-weight: 600;
  word-break: break-word;
  overflow-wrap: break-word;
}

.contact-content {
  max-width: 900px;
  margin: 0 auto;
}

.contact-social {
  text-align: center;
  padding: 2rem 0;
}

.social-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--color-accent);
}

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

.social-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.75rem;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: 25px;
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s;
}

.social-btn:hover {
  background: var(--color-primary);
  color: var(--color-bg-dark);
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--glow);
}

.footer {
  text-align: center;
  padding: 2rem 0;
  border-top: 1px solid rgba(34, 211, 238, 0.2);
  margin-top: 3rem;
}

.footer p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .nav-menu {
    display: none;
  }

  .skills-grid,
  .projects-grid,
  .education-timeline,
  .achievements-grid {
    grid-template-columns: 1fr;
  }
}

.hero-background,
.timeline-dot,
.scroll-indicator,
.hero::before,
.hero::after {
  display: none;
}