/* === VARIABLES === */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a24;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --accent-primary: #00f0ff;
  --accent-secondary: #7b2fff;
  --accent-gradient: linear-gradient(135deg, #00f0ff 0%, #7b2fff 100%);
  --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.3);
  --glow-purple: 0 0 20px rgba(123, 47, 255, 0.3);
  --border-color: rgba(255, 255, 255, 0.1);
  --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Fira Code', 'Consolas', monospace;
  --container-width: 1200px;
  --transition: 0.3s ease;
}

/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent-secondary);
  text-shadow: var(--glow-cyan);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* === NAVBAR === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
  background: transparent;
}

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

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
}

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

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

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

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  padding: 0.5rem;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
  text-shadow: none;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(123, 47, 255, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(0, 240, 255, 0.1) 0%, transparent 50%);
}

#hero-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at var(--mask-x, 50%) var(--mask-y, 50%), black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at var(--mask-x, 50%) var(--mask-y, 50%), black 30%, transparent 70%);
  animation: mask-drift 20s ease-in-out infinite;
}

@keyframes mask-drift {
  0%, 100% { --mask-x: 50%; --mask-y: 50%; }
  25% { --mask-x: 55%; --mask-y: 45%; }
  50% { --mask-x: 45%; --mask-y: 55%; }
  75% { --mask-x: 48%; --mask-y: 48%; }
}

@property --mask-x {
  syntax: '<percentage>';
  initial-value: 50%;
  inherits: false;
}

@property --mask-y {
  syntax: '<percentage>';
  initial-value: 50%;
  inherits: false;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.1;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 12s ease-in-out infinite;
  transition: opacity 0.5s ease;
}

@keyframes gradient-shift {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 500px;
}

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  border: none;
  margin-right: 1rem;
  margin-bottom: 1rem;
}

.btn-primary {
  background: var(--accent-gradient);
  color: var(--bg-primary);
  box-shadow: var(--glow-cyan);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
  color: var(--bg-primary);
}

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

.btn-outline:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  box-shadow: var(--glow-cyan);
}

/* === ABOUT === */
.about {
  background: var(--bg-primary);
  padding: 6rem 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 4rem;
  align-items: start;
}

.section-title-left {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
}

.section-title-left::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--accent-gradient);
  margin-top: 1rem;
  border-radius: 2px;
}

.about-header {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.about-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 3px solid var(--accent-primary);
  box-shadow: var(--glow-cyan);
}

.about-name {
  font-size: 1.75rem;
  color: var(--accent-primary);
  margin-bottom: 0.25rem;
}

.about-role {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.about-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.7;
}

.about-content strong {
  color: var(--text-primary);
}

.about-stats {
  display: flex;
  gap: 2rem;
  margin: 2rem 0;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.stat {
  text-align: center;
  flex: 1;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.about-links {
  margin-top: 1.5rem;
}

.about-tech {
  background: var(--bg-secondary);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.about-tech h4 {
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.tech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.tech-item {
  padding: 0.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
  text-align: center;
}

.tech-item:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

@media (max-width: 968px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-stats {
    justify-content: space-around;
  }
}

@media (max-width: 480px) {
  .about-stats {
    flex-direction: column;
    gap: 1.5rem;
  }
}

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

/* === SECTIONS === */
section {
  padding: 6rem 0;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--accent-gradient);
  margin: 1rem auto 0;
  border-radius: 2px;
}

/* === SERVICES === */
.services {
  background: var(--bg-secondary);
}

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

.service-card {
  background: var(--bg-card);
  padding: 2.5rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  text-align: center;
}

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

.service-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.5rem;
  color: var(--accent-primary);
}

.service-icon svg {
  width: 100%;
  height: 100%;
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* === PROJECTS === */
.projects {
  background: var(--bg-primary);
}

.project {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 6rem;
  padding: 2rem;
  background: var(--bg-secondary);
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.project:last-child {
  margin-bottom: 0;
}

.project-reverse {
  direction: rtl;
}

.project-reverse > * {
  direction: ltr;
}

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

.project-images-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.project-image {
  display: block;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  flex: 1;
  min-width: 150px;
}

.project-image:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--glow-cyan);
  transform: scale(1.02);
}

.project-image img {
  width: 100%;
  height: auto;
  transition: var(--transition);
}

.project-content h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  color: var(--accent-primary);
}

.project-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.project-highlight {
  color: var(--text-primary) !important;
  padding: 1rem;
  background: rgba(0, 240, 255, 0.05);
  border-left: 3px solid var(--accent-primary);
  border-radius: 0 4px 4px 0;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.tech-tag {
  padding: 0.375rem 0.875rem;
  background: rgba(123, 47, 255, 0.1);
  border: 1px solid rgba(123, 47, 255, 0.3);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--accent-secondary);
  font-family: var(--font-mono);
}

/* === CONTACT === */
.contact {
  background: var(--bg-secondary);
}

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

.contact-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.contact-item h4 {
  color: var(--accent-primary);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.contact-item p {
  color: var(--text-secondary);
}

.contact-cta {
  text-align: center;
  padding: 3rem;
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.contact-cta h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.contact-cta > p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.contact-alt {
  margin-top: 1.5rem;
  font-size: 0.95rem !important;
  color: var(--text-secondary) !important;
}

.contact-response {
  margin-top: 0.5rem;
  font-size: 0.85rem !important;
  color: var(--accent-primary) !important;
  opacity: 0.8;
}

/* === FOOTER === */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  text-align: center;
}

.footer p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* === RESPONSIVE === */
@media (max-width: 968px) {
  .project {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .project-reverse {
    direction: ltr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 10, 15, 0.98);
    padding: 1rem;
    gap: 0;
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links li {
    padding: 0.75rem 0;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

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

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

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

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .contact-info {
    grid-template-columns: 1fr;
  }

  section {
    padding: 4rem 0;
  }
}

@media (max-width: 480px) {
  .project-images-grid {
    grid-template-columns: 1fr;
  }

  .btn {
    display: block;
    text-align: center;
    margin-right: 0;
  }
}