/* ============================================================
   SECTIONS — sections.css
   ============================================================ */

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  background: rgba(7, 16, 34, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.nav.scrolled {
  height: 70px;
  background: rgba(7, 16, 34, 0.85);
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: var(--fw-extrabold);
  color: var(--text-dark);
  letter-spacing: -0.5px;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--text-body);
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}

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

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-social-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  color: var(--text-body);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-social-icon:hover {
  color: var(--primary);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(110, 231, 183, 0.2);
  transform: translateY(-2px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  z-index: 10;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Nav */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-white);
  z-index: var(--z-overlay);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu .nav-link {
  font-size: var(--fs-h3);
  font-weight: var(--fw-semibold);
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
  width: 100%;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text-body);
  margin-bottom: var(--space-xl);
}

.hero-label .dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: var(--radius-full);
  animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}

.hero-title {
  font-size: var(--fs-hero);
  font-weight: var(--fw-black);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-xl);
}

.hero-subtitle {
  font-size: clamp(0.85rem, 1vw, 0.95rem);
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
  flex-wrap: wrap;
}

.hero-social {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.hero-stats {
  display: flex;
  gap: var(--space-3xl);
  flex-wrap: wrap;
}

.hero-stat {
  text-align: left;
}

.hero-stat-number {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: var(--fw-extrabold);
  color: var(--text-dark);
  line-height: 1;
}

.hero-stat-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2;
}

.hero-circular-image {
  width: 420px;
  height: 420px;
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 4px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 50px rgba(110, 231, 183, 0.1);
  animation: float 6s ease-in-out infinite;
  transition: all var(--transition-base);
}

.hero-circular-image:hover {
  transform: scale(1.02);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4), 0 0 60px rgba(110, 231, 183, 0.2);
}

.hero-circular-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  animation: blob-morph 8s ease-in-out infinite;
}

.hero-blob-1 {
  width: 400px;
  height: 400px;
  background: var(--primary);
  top: -10%;
  right: -10%;
}

.hero-blob-2 {
  width: 300px;
  height: 300px;
  background: var(--secondary);
  bottom: -10%;
  left: -10%;
}

.hero-blob-3 {
  width: 200px;
  height: 200px;
  background: var(--primary);
  top: 50%;
  left: 20%;
}

@keyframes blob-morph {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(20px, -20px) scale(1.05); }
  50% { transform: translate(-10px, 15px) scale(0.95); }
  75% { transform: translate(15px, 10px) scale(1.02); }
}

#particles-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-image-wrapper {
  position: relative;
}

.about-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-xl);
}

.about-image img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
}

.about-image-accent {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px solid var(--primary);
  border-radius: var(--radius-xl);
  top: 20px;
  left: 20px;
  z-index: -1;
  opacity: 0.2;
}

.about-content h2 {
  margin-bottom: var(--space-lg);
}

.about-content p {
  margin-bottom: var(--space-xl);
  line-height: 1.9;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.about-highlight {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--text-dark);
}

.about-highlight-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 0.9rem;
  flex-shrink: 0;
}

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.skill-tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* ---------- Education ---------- */
.education-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  max-width: 860px;
  margin: 0 auto;
}

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-xl);
}

/* ---------- Projects ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

/* ---------- Process ---------- */
.process-grid {
  max-width: 700px;
  margin: 0 auto;
}

/* ---------- Testimonials ---------- */
.testimonials-wrapper {
  overflow: hidden;
  position: relative;
}

.testimonials-track {
  display: flex;
  gap: var(--space-xl);
  transition: transform 0.5s ease;
}

.testimonials-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

.testimonial-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  color: var(--text-body);
  background: rgba(255, 255, 255, 0.02);
}

.testimonial-btn:hover {
  background: var(--gradient-primary);
  color: #0b1220;
  border-color: transparent;
}

.testimonials-dots {
  display: flex;
  gap: 0.5rem;
}

.testimonial-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--border-color);
  cursor: pointer;
  transition: all var(--transition-base);
}

.testimonial-dot.active {
  width: 24px;
  border-radius: var(--radius-pill);
  background: var(--gradient-primary);
}

/* ---------- Why Choose ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-xl);
}

/* ---------- Tech Stack ---------- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: var(--space-md);
  max-width: 800px;
  margin: 0 auto;
}

/* ---------- Achievements ---------- */
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  background: linear-gradient(rgba(255, 255, 255, 0.02), rgba(0, 0, 0, 0.02));
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
}

/* ---------- FAQ ---------- */
.faq-grid {
  max-width: 760px;
  margin: 0 auto;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
}

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

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-info-item h4 { font-size: var(--fs-small); margin-bottom: 0.15rem; }
.contact-info-item p { font-size: var(--fs-small); color: var(--text-muted); }
.contact-info-item a { color: var(--text-muted); transition: color var(--transition-fast); }
.contact-info-item a:hover { color: var(--primary); }

.contact-socials {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.contact-form-card {
  background: linear-gradient(rgba(255, 255, 255, 0.02), rgba(0, 0, 0, 0.02));
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
}

.contact-form-buttons {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-dark);
  color: #ccc;
  padding: var(--space-4xl) 0 var(--space-xl);
}

/* Using var(--bg-dark) which is styled by theme */

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand p {
  color: #888;
  font-size: var(--fs-small);
  margin-top: var(--space-md);
  max-width: 300px;
  line-height: 1.7;
}

.footer-title {
  color: #fff;
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-lg);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-link {
  color: #888;
  font-size: var(--fs-small);
  transition: color var(--transition-fast);
}

.footer-link:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-xs);
  color: #666;
}

.footer-socials {
  display: flex;
  gap: var(--space-md);
}

.footer-social-link {
  color: #666;
  transition: color var(--transition-fast);
  font-size: 1.1rem;
}

.footer-social-link:hover { color: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-buttons { justify-content: center; }
  .hero-social { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-image-wrapper { margin-top: var(--space-xl); order: -1; }
  .hero-circular-image { width: 300px; height: 300px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-image-wrapper { max-width: 400px; margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: flex; }
}

@media (max-width: 768px) {
  .section { padding: var(--space-4xl) 0; }
  .projects-grid { grid-template-columns: 1fr; }
  .achievements-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { gap: var(--space-xl); }
  .hero-circular-image { width: 250px; height: 250px; }
  .container { padding: 0 var(--space-lg); }
}

@media (max-width: 480px) {
  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-buttons .btn { width: 100%; }
  .skills-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .about-highlights { grid-template-columns: 1fr; }
  .contact-form-buttons { flex-direction: column; }
  .contact-form-buttons .btn { width: 100%; }
}