/* ==========================================================================
   Section Styles
   Hero, About, Projects, Skills, Contact, Footer
   ========================================================================== */

/* ==========================================================================
   Navigation
   ========================================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  padding: var(--space-4) 0;
  background-color: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
}

.nav.scrolled {
  border-bottom-color: var(--color-border);
}

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

.nav-logo {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-logo:hover {
  color: var(--color-accent);
}

.nav-logo-text {
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-gradient);
  transition: width var(--transition-base);
}

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

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

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  padding: 0;
  cursor: pointer;
}

.nav-toggle-bar {
  width: 100%;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav-toggle.active .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.active .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100vh;
  padding-top: var(--space-24);
  padding-bottom: var(--space-16);
}

@media (min-width: 768px) {
  .hero-container {
    flex-direction: row;
    align-items: center;
    gap: var(--space-12);
  }
}

.hero-content {
  max-width: 900px;
  flex: 1;
}

.hero-image {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hero-image img {
  max-width: 350px;
  max-height: 350px;
  width: auto;
  height: auto;
  border-radius: var(--radius-lg);
  object-fit: contain;
}

@media (min-width: 768px) {
  .hero-image img {
    max-width: 400px;
    max-height: 400px;
  }
}

@media (max-width: 767px) {
  .hero-image {
    order: -1;
    margin-bottom: var(--space-8);
  }
  
  .hero-image img {
    max-width: 300px;
    max-height: 300px;
  }
}

.hero-intro {
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wide);
}

.hero-title {
  margin-bottom: var(--space-6);
  font-size: var(--text-5xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
}

.hero-description {
  max-width: 600px;
  margin-bottom: var(--space-8);
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  text-align: justify;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.hero-scroll-text {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
  0%, 100% {
    opacity: 1;
    transform: scaleY(1);
  }
  50% {
    opacity: 0.5;
    transform: scaleY(0.5);
  }
}

/* Hero background */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-bg-gradient {
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-bg-noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
}

/* ==========================================================================
   About Section
   ========================================================================== */

.about {
  background-color: var(--color-bg-secondary);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  text-align: justify;
}

.about-lead {
  font-size: var(--text-xl);
  color: var(--color-text-primary);
  line-height: var(--leading-relaxed);
}

.about-text p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.about-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.about-detail {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.about-detail:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.about-detail-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.about-detail-value {
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--color-text-primary);
}

/* ==========================================================================
   Projects Section
   ========================================================================== */

.projects {
  background-color: var(--color-bg-primary);
  position: relative;
  text-align: justify;
}

.projects::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

/* ==========================================================================
   Skills Section
   ========================================================================== */

.skills {
  background-color: var(--color-bg-secondary);
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

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

.contact-title {
  margin-bottom: var(--space-4);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
}

.contact-description {
  margin-bottom: var(--space-8);
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  text-align: justify;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  padding: var(--space-8) 0;
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

.footer-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer-back-to-top {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-back-to-top:hover {
  color: var(--color-accent);
}

.footer-back-to-top svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.footer-back-to-top:hover svg {
  transform: translateY(-4px);
}