/* =========================================
   PROFESSIONAL GALACTIC PORTFOLIO - INDEX CSS
   Minimalist design with subtle cosmic touches
   ========================================= */

/* ============= CSS VARIABLES ============= */
:root {
  /* Professional Colors */
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --secondary: #8b5cf6;
  --accent: #06b6d4;
  
  /* Backgrounds */
  --bg-primary: #0a0a0f;
  --bg-secondary: #14141f;
  --bg-card: rgba(20, 20, 31, 0.8);
  
  /* Text */
  --text-primary: #ffffff;
  --text-secondary: #d1d5db;
  --text-tertiary: #9ca3af;
  
  /* Borders */
  --border: rgba(99, 102, 241, 0.15);
  --border-hover: rgba(99, 102, 241, 0.3);
  
  /* Transitions */
  --transition: 0.2s ease;
  
  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ============= BACKGROUND ============= */
#cosmos {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.4;
}

.content {
  position: relative;
  z-index: 1;
}

/* ============= NAVIGATION ============= */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: all var(--transition);
}

#nav.scrolled {
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--text-primary);
}

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

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

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
}

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

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
}

.burger span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.burger.active span:nth-child(2) {
  opacity: 0;
}

.burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ============= HERO ============= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 2rem 4rem;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.hero-content {
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid var(--border);
  border-radius: 20px;
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

.pulse {
  color: #10b981;
  font-size: 0.5rem;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1rem;
}

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

.hero-subtitle {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-tertiary);
  max-width: 600px;
  margin: 0 auto 2rem;
}

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

.hero-socials {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
}

.social-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 1.125rem;
  text-decoration: none;
  transition: all var(--transition);
}

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

/* ============= BUTTONS ============= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

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

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

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

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

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

/* ============= SCROLL INDICATOR ============= */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
}

.mouse {
  width: 24px;
  height: 36px;
  border: 2px solid var(--primary);
  border-radius: 12px;
  position: relative;
}

.wheel {
  width: 3px;
  height: 6px;
  background: var(--primary);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
}

/* ============= SECTIONS ============= */
.section {
  padding: 5rem 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-label {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid var(--border);
  border-radius: 16px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-description {
  font-size: 1.125rem;
  color: var(--text-tertiary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============= CARDS ============= */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(10px);
  transition: all var(--transition);
}

.card:hover {
  border-color: var(--border-hover);
}

/* ============= EXPERTISE ============= */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.expertise-card .card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  border-radius: var(--radius-md);
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.card-text {
  color: var(--text-tertiary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  padding: 0.375rem 0.75rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--primary-light);
}

/* ============= PROJECTS ============= */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  backdrop-filter: blur(10px);
}

.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.project-image {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: var(--bg-secondary);
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--primary);
  opacity: 0.2;
}

.project-featured {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  background: #f59e0b;
  border-radius: 16px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #000;
}

.project-content {
  padding: 1.5rem;
}

.project-category {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  background: rgba(99, 102, 241, 0.1);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.project-description {
  color: var(--text-tertiary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.project-links {
  display: flex;
  gap: 0.75rem;
}

.project-link {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.project-link:hover {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--primary);
}

.project-link-primary {
  background: var(--primary);
  border: none;
  color: white;
}

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

/* ============= SKILLS ============= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.skill-group-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.skill-group-header i {
  font-size: 1.75rem;
  color: var(--primary);
}

.skill-group-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.skill-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.skill-percentage {
  font-size: 0.875rem;
  color: var(--primary);
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
}

.skill-bar {
  height: 6px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 3px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: var(--primary);
  border-radius: 3px;
  transition: width 1s ease;
}

.skill-level {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

/* ============= CONTACT ============= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 2rem;
}

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

.contact-info-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.contact-info-text {
  color: var(--text-tertiary);
  line-height: 1.7;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-method {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  background: rgba(99, 102, 241, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.contact-method:hover {
  border-color: var(--border-hover);
}

.contact-method-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-method-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.contact-method-label {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.contact-method-value {
  color: var(--text-primary);
  font-weight: 500;
  text-decoration: none;
}

.contact-method-value:hover {
  color: var(--primary);
}

.contact-socials {
  padding: 1.25rem;
  background: rgba(99, 102, 241, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.contact-socials-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem;
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.social-link:hover {
  background: rgba(99, 102, 241, 0.1);
}

.social-link i {
  font-size: 1.125rem;
  color: var(--primary);
}

/* ============= FORMS ============= */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

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

.form-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.form-label i {
  color: var(--primary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.875rem;
  background: rgba(99, 102, 241, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: all var(--transition);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.08);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  margin-top: 0.5rem;
}

/* ============= FOOTER ============= */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 3rem 2rem 2rem;
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
}

.footer-tagline {
  color: var(--text-tertiary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color var(--transition);
}

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

.footer-socials {
  display: flex;
  gap: 0.75rem;
}

.footer-social {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 1rem;
  text-decoration: none;
  transition: all var(--transition);
}

.footer-social:hover {
  background: var(--primary);
  border-color: var(--primary);
}

.footer-bottom {
  max-width: 1400px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

.footer-bottom i {
  color: var(--primary);
  margin: 0 0.25rem;
}

/* ============= RESPONSIVE ============= */
@media (max-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 80%;
    max-width: 300px;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 5rem 2rem;
    gap: 1rem;
    transition: right var(--transition);
    border-left: 1px solid var(--border);
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .burger {
    display: flex;
  }
  
  .projects-grid,
  .expertise-grid,
  .skills-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 3rem 1.5rem;
  }
  
  .hero {
    padding: 6rem 1.5rem 3rem;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}