/* =============================================
   NAVBAR
   ============================================= */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: var(--transition-base);
}

.navbar.scrolled {
  background: rgba(5, 13, 26, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  cursor: pointer;
}

.logo-dot {
  -webkit-text-fill-color: var(--color-accent);
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  transition: color var(--transition-base);
}

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

.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { width: 100%; }

.btn-hire {
  padding: 0.5rem 1.4rem;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  color: white;
  font-weight: 600;
  font-size: 0.875rem;
  transition: var(--transition-base);
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
  cursor: pointer;
}

.btn-hire:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-base);
}

/* =============================================
   MOBILE MENU
   ============================================= */

.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 990;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: translateX(100%);
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.open { transform: translateX(0); }

.mobile-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-base);
  background: none;
  border: none;
  padding: 0.5rem;
}

.mobile-close:hover { color: var(--color-primary); }

.mobile-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  margin-bottom: 3rem;
}

.mobile-links a {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-secondary);
  transition: var(--transition-base);
}

.mobile-links a:hover {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mobile-social {
  display: flex;
  gap: 1rem;
}

.mobile-social a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  border: 1px solid var(--border-glass);
  padding: 0.5rem 1.4rem;
  border-radius: var(--radius-full);
  transition: var(--transition-base);
}

.mobile-social a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* =============================================
   HERO SECTION
   ============================================= */

.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  padding: 0 2rem;
  max-width: var(--container-max);
  margin: 0 auto;
  gap: 4rem;
}

.hero-bg {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  pointer-events: none;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #667eea 0%, transparent 70%);
  top: -200px;
  right: -100px;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #764ba2 0%, transparent 70%);
  bottom: -100px;
  left: -100px;
}

.orb-3 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, #00d2ff 0%, transparent 70%);
  top: 45%;
  left: 40%;
  opacity: 0.2;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(102, 126, 234, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102, 126, 234, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 80%);
}

.hero-content {
  flex: 1;
  max-width: 580px;
  z-index: 10;
  padding-top: var(--nav-height);
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.2rem;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  min-height: 2em;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.typing-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.hero-description {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 2.5rem;
  max-width: 480px;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-glass);
}

/* Hero Image */
.hero-image-wrapper {
  position: relative;
  flex-shrink: 0;
  z-index: 10;
  padding-top: var(--nav-height);
  margin-top: -3rem;
  margin-right: 5rem;
  animation: fadeInUp 0.8s ease 0.5s both;
}

.hero-image {
  width: 340px;
  height: 340px;
  border-radius: 50%;
  object-fit: cover;
  position: relative;
  z-index: 3;
  animation: heroImageFloat 6s ease-in-out infinite;
}

.hero-image-glow {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: var(--gradient-primary);
  opacity: 0.2;
  filter: blur(30px);
  z-index: 1;
}

.hero-image-ring {
  position: absolute;
  border-radius: 50%;
  z-index: 2;
  top: calc(50% + var(--nav-height) / 2);
  left: 50%;
  transform-origin: center;
}

.ring-1 {
  width: 380px;
  height: 380px;
  margin-left: -190px;
  margin-top: -190px;
  border: 1px dashed rgba(102, 126, 234, 0.35);
}

.ring-2 {
  width: 430px;
  height: 430px;
  margin-left: -215px;
  margin-top: -215px;
  border: 1px solid rgba(102, 126, 234, 0.12);
}

.ring-3 {
  width: 480px;
  height: 480px;
  margin-left: -240px;
  margin-top: -240px;
  border: 1px dashed rgba(0, 210, 255, 0.1);
}

.badge-data {
  bottom: 15px;
  left: -55px;
}

.badge-ios {
  top: 25px;
  right: -10px;
}

.badge-ds {
  top: 80px;
  left: -70px;
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  z-index: 10;
}

.scroll-line {
  width: 1.5px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transform-origin: top;
}

/* =============================================
   ABOUT SECTION
   ============================================= */

.about-section { background: transparent; }

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.about-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 2rem;
  transition: var(--transition-base);
  box-shadow: var(--shadow-card);
  text-align: center;
}

.about-card:hover {
  border-color: rgba(102, 126, 234, 0.3);
  box-shadow: var(--shadow-glow), var(--shadow-card);
  transform: translateY(-6px);
}

.card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: rgba(102, 126, 234, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  overflow: hidden;
}

.card-icon img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  filter: brightness(0) invert(1) opacity(0.7);
}

.about-bio-icon {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.card-highlight {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.3rem;
}

.card-text {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 0.75rem;
}

/* =============================================
   PROJECTS SECTION
   ============================================= */

.projects-section {
  background: rgba(10, 22, 40, 0.5);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.project-category-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition-spring);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.project-category-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 0;
}

.project-category-card:hover::before { opacity: 0.06; }

.project-category-card:hover {
  border-color: rgba(102, 126, 234, 0.35);
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}

.pcc-icon {
  width: 52px;
  height: 52px;
  background: rgba(102, 126, 234, 0.12);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: var(--transition-base);
  position: relative;
  z-index: 1;
}

.project-category-card:hover .pcc-icon {
  background: rgba(102, 126, 234, 0.22);
  color: var(--color-accent);
}

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

.pcc-content h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
  color: var(--text-primary);
}

.pcc-content p {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0;
}

.pcc-arrow {
  font-size: 1.1rem;
  color: var(--text-muted);
  transition: var(--transition-base);
  position: relative;
  z-index: 1;
}

.project-category-card:hover .pcc-arrow {
  color: var(--color-primary);
  transform: translateX(4px);
}

/* =============================================
   SKILLS SECTION
   ============================================= */

.skills-section { background: transparent; }

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

.skills-column {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
}

.skills-column-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-primary);
}

.title-icon {
  font-size: 1.25rem;
}

.skill-items {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.skill-item {}

.skill-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.skill-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.skill-percent {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
}

.skill-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.skill-fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-primary);
  opacity: 0;
  transition: opacity 0.3s ease 1s;
}

.skill-fill.animated::after { opacity: 1; }

/* =============================================
   CERTIFICATES SECTION
   ============================================= */

.certificates-section {
  background: rgba(10, 22, 40, 0.5);
  overflow: hidden;
}

.certificates-track-wrapper {
  overflow: hidden;
  width: 100%;
  position: relative;
  margin-top: 2rem;
}

.certificates-track-wrapper::before,
.certificates-track-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 120px;
  z-index: 2;
  pointer-events: none;
}

.certificates-track-wrapper::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-primary), transparent);
}

.certificates-track-wrapper::after {
  right: 0;
  background: linear-gradient(to left, rgba(10, 22, 40, 0.5), transparent);
}

.certificates-track {
  display: flex;
  gap: 1.5rem;
  width: max-content;
  padding: 1rem 0;
}

.cert-card {
  flex-shrink: 0;
  width: 260px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  cursor: pointer;
  transition: var(--transition-base);
  text-decoration: none;
  display: block;
}

.cert-card:hover {
  border-color: rgba(102, 126, 234, 0.35);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}

.cert-img-wrapper {
  height: 130px;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.cert-card:hover .cert-img-wrapper img { transform: scale(1.04); }

.cert-card h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

.cert-card p {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
  margin: 0;
}

.cert-card .cert-link-text {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* =============================================
   CONTACT SECTION
   ============================================= */

.contact-section { background: transparent; }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.75rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition-base);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  cursor: pointer;
}

.contact-card:hover {
  border-color: rgba(102, 126, 234, 0.35);
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: rgba(102, 126, 234, 0.12);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon img {
  width: 26px;
  height: 26px;
  object-fit: contain;
  filter: brightness(0) invert(1) opacity(0.8);
}

.contact-info { flex: 1; }

.contact-info h4 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.contact-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
}

.contact-arrow {
  font-size: 1.1rem;
  color: var(--text-muted);
  transition: var(--transition-base);
}

.contact-card:hover .contact-arrow {
  color: var(--color-primary);
  transform: translateX(4px);
}

/* =============================================
   FOOTER
   ============================================= */

.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 3rem 0 2rem;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-brand {}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 0.35rem;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: var(--transition-base);
}

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

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

.social-link {
  width: 40px;
  height: 40px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
}

.social-link:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.25);
}

.social-link img {
  width: 18px;
  height: 18px;
  object-fit: contain;
  filter: brightness(0) invert(1) opacity(0.7);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
}