/* =====================================================
   KUMMARI SAMPATH — Developer Portfolio
   Dark Theme | Glassmorphism | Native Scroll
   ===================================================== */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors */
  --bg-primary:    #0a0a0f;
  --bg-secondary:  #12121a;
  --bg-card:       rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --glass-border:  rgba(255, 255, 255, 0.08);
  --glass-shadow:  rgba(0, 0, 0, 0.4);

  --text-primary:   #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-muted:     #6b6b82;

  --accent-primary:   #6c5ce7;
  --accent-secondary: #00cec9;
  --accent-tertiary:  #fd79a8;
  --accent-gradient:  linear-gradient(135deg, #6c5ce7 0%, #00cec9 50%, #fd79a8 100%);
  --accent-gradient-2: linear-gradient(135deg, #6c5ce7, #a855f7);

  /* Spacing */
  --section-padding: 100px 0;
  --container-width: 1200px;
  --border-radius:   16px;
  --border-radius-sm: 10px;

  /* Transitions */
  --transition-fast:   0.2s cubic-bezier(.4,0,.2,1);
  --transition-medium: 0.35s cubic-bezier(.4,0,.2,1);
  --transition-slow:   0.6s cubic-bezier(.4,0,.2,1);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; outline: none; font-family: inherit; }

.container {
  width: 90%;
  max-width: var(--container-width);
  margin: 0 auto;
}

/* ---------- Section Shared ---------- */
.section { padding: var(--section-padding); position: relative; }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-secondary);
  margin-bottom: 12px;
  padding: 6px 16px;
  border: 1px solid rgba(0,206,201,.25);
  border-radius: 50px;
  background: rgba(0,206,201,.06);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -1px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-top: 12px;
  max-width: 560px;
  margin-inline: auto;
}

/* ---------- Glassmorphism Card ---------- */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium), background var(--transition-medium);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(108,92,231,.12), 0 0 0 1px rgba(108,92,231,.15);
}

/* =====================================================
   NAVIGATION
   ===================================================== */
.navbar {
  position: fixed;
  top: 0; left: 0; width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: background var(--transition-medium), padding var(--transition-medium), box-shadow var(--transition-medium);
}

.navbar.scrolled {
  background: rgba(10,10,15,.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 10px 0;
  box-shadow: 0 4px 30px rgba(0,0,0,.35);
}

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

.nav-logo {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.35rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-logo span { opacity: .6; }

.nav-links { display: flex; gap: 8px; }

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 8px;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: rgba(255,255,255,.06);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 4px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

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

/* Animated gradient blobs */
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.hero-bg .blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: .35;
  animation: blobFloat 20s ease-in-out infinite alternate;
}

.hero-bg .blob-1 {
  width: 600px; height: 600px;
  background: #6c5ce7;
  top: -20%; left: -10%;
  animation-duration: 18s;
}

.hero-bg .blob-2 {
  width: 500px; height: 500px;
  background: #00cec9;
  bottom: -20%; right: -10%;
  animation-duration: 22s;
  animation-delay: -5s;
}

.hero-bg .blob-3 {
  width: 400px; height: 400px;
  background: #fd79a8;
  top: 40%; left: 50%;
  animation-duration: 25s;
  animation-delay: -10s;
}

/* Grid overlay */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 60px 60px;
}

@keyframes blobFloat {
  0%   { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(40px, -30px) scale(1.05); }
  66%  { transform: translate(-20px, 20px) scale(.95); }
  100% { transform: translate(30px, -10px) scale(1.02); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-greeting {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1rem;
  color: var(--accent-secondary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-greeting .wave {
  display: inline-block;
  animation: wave 2.5s ease-in-out infinite;
  transform-origin: 70% 70%;
}

@keyframes wave {
  0%, 60%, 100% { transform: rotate(0deg); }
  10%           { transform: rotate(14deg); }
  20%           { transform: rotate(-8deg); }
  30%           { transform: rotate(14deg); }
  40%           { transform: rotate(-4deg); }
  50%           { transform: rotate(10deg); }
}

.hero-name {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 8px;
}

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

.hero-role {
  font-size: clamp(1.1rem, 2.2vw, 1.45rem);
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: 20px;
}

.hero-tagline {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--accent-gradient-2);
  color: #fff;
  box-shadow: 0 8px 30px rgba(108,92,231,.35);
}

.btn-primary:hover {
  box-shadow: 0 12px 40px rgba(108,92,231,.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

.btn-outline:hover {
  border-color: var(--accent-primary);
  background: rgba(108,92,231,.08);
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--glass-border);
}

.stat-item h3 {
  font-size: 2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.scroll-indicator span {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.scroll-mouse {
  width: 24px; height: 38px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.scroll-mouse::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  background: var(--accent-secondary);
  border-radius: 4px;
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0%, 100% { opacity: 1; transform: translate(-50%, 0); }
  50%      { opacity: .3; transform: translate(-50%, 12px); }
}

/* =====================================================
   ABOUT SECTION
   ===================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

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

.about-image-card {
  padding: 24px;
  position: relative;
}

.about-avatar {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--border-radius);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  position: relative;
  overflow: hidden;
}

.about-avatar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(0,0,0,.3));
}

.about-code-badge {
  position: absolute;
  bottom: -12px;
  right: -12px;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 12px 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--accent-secondary);
  backdrop-filter: blur(8px);
}

.about-text h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 1rem;
  line-height: 1.8;
}

.about-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(108,92,231,.08);
  border: 1px solid rgba(108,92,231,.2);
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.badge:hover {
  background: rgba(108,92,231,.15);
  border-color: rgba(108,92,231,.4);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.badge-icon {
  width: 18px; height: 18px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
}

/* =====================================================
   SKILLS SECTION
   ===================================================== */
#skills { background: var(--bg-secondary); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.skill-category {
  padding: 32px;
}

.skill-category-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.skill-category-icon.frontend { background: rgba(108,92,231,.15); }
.skill-category-icon.backend  { background: rgba(0,206,201,.15); }
.skill-category-icon.tools    { background: rgba(253,121,168,.15); }

.skill-category h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.skill-list { display: flex; flex-direction: column; gap: 14px; }

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

.skill-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.skill-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.skill-dot.frontend { background: var(--accent-primary); }
.skill-dot.backend  { background: var(--accent-secondary); }
.skill-dot.tools    { background: var(--accent-tertiary); }

.skill-name {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.skill-bar-wrapper {
  width: 100px;
  height: 4px;
  background: rgba(255,255,255,.06);
  border-radius: 4px;
  overflow: hidden;
}

.skill-bar {
  height: 100%;
  border-radius: 4px;
  transition: width 1.2s cubic-bezier(.25,.46,.45,.94);
  width: 0;
}

.skill-bar.animated { /* set via JS */ }

.skill-bar.frontend { background: var(--accent-primary); }
.skill-bar.backend  { background: var(--accent-secondary); }
.skill-bar.tools    { background: var(--accent-tertiary); }

/* =====================================================
   PROJECTS SECTION
   ===================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 28px;
}

.project-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.project-image-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

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

.project-card:hover .project-image-wrapper img {
  transform: scale(1.08);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,15,.9) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-medium);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 20px;
  gap: 12px;
}

.project-card:hover .project-overlay { opacity: 1; }

.project-overlay .btn {
  padding: 10px 20px;
  font-size: 0.85rem;
}

.project-info {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-info h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.project-info p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  flex: 1;
  line-height: 1.7;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-tech span {
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  padding: 4px 12px;
  background: rgba(108,92,231,.1);
  border-radius: 6px;
  color: var(--accent-primary);
}

/* =====================================================
   EXPERIENCE / TIMELINE
   ===================================================== */
#experience { background: var(--bg-secondary); }

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-primary), var(--accent-secondary), var(--accent-tertiary));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding: 28px;
}

.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -33px;
  top: 32px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent-primary);
  border: 3px solid var(--bg-secondary);
  box-shadow: 0 0 0 4px rgba(108,92,231,.25);
}

.timeline-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--accent-secondary);
  margin-bottom: 8px;
}

.timeline-item h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.timeline-item h4 {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 12px;
}

.timeline-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.timeline-item ul {
  margin-top: 8px;
}

.timeline-item ul li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
  margin-bottom: 6px;
  line-height: 1.6;
}

.timeline-item ul li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent-secondary);
}

/* =====================================================
   CONTACT SECTION
   ===================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-link-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  transition: all var(--transition-fast);
}

.contact-link-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary);
  transform: translateX(6px);
}

.contact-link-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  background: rgba(108,92,231,.12);
  flex-shrink: 0;
}

.contact-link-text span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.contact-link-text strong {
  font-size: 0.95rem;
  font-weight: 600;
}

/* Form */
.contact-form { padding: 36px; }

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,.03);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(108,92,231,.15);
}

.form-group textarea {
  height: 140px;
  resize: vertical;
}

.btn-submit {
  width: 100%;
  padding: 16px;
  font-size: 1rem;
  border-radius: 12px;
}

/* Social links */
.social-links {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}

.social-link {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(108,92,231,.35);
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--glass-border);
  padding: 40px 0;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  font-weight: 600;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-text {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-family: 'JetBrains Mono', monospace;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

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

/* =====================================================
   SCROLL REVEAL ANIMATION
   ===================================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(.4,0,.2,1), transform 0.7s cubic-bezier(.4,0,.2,1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* staggered children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s cubic-bezier(.4,0,.2,1), transform 0.5s cubic-bezier(.4,0,.2,1);
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.12s; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.19s; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.26s; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.33s; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.40s; }

.reveal-stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* =====================================================
   BACK TO TOP
   ===================================================== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px; height: 48px;
  border-radius: 14px;
  background: var(--accent-gradient-2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 8px 30px rgba(108,92,231,.4);
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px);
  transition: opacity var(--transition-medium), transform var(--transition-medium);
  z-index: 900;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(108,92,231,.55);
}

/* =====================================================
   PROFILES SECTION
   ===================================================== */
.profiles-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 800px;
  margin: 0 auto;
}

.profile-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-radius: var(--border-radius);
  transition: all var(--transition-medium);
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
}

.profile-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(108,92,231,.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(108,92,231,.15);
}

.profile-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

.profile-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
}

.profile-info h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 2px;
  color: var(--text-primary);
}

.profile-info p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
}

.profile-action {
  color: var(--text-muted);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.profile-card:hover .profile-action {
  color: var(--accent-secondary);
  transform: translate(2px, -2px);
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 1024px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --section-padding: 72px 0; }

  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 280px; height: 100vh;
    flex-direction: column;
    background: rgba(10,10,15,.96);
    backdrop-filter: blur(20px);
    padding: 80px 32px 32px;
    gap: 4px;
    transition: right var(--transition-medium);
  }

  .nav-links.open { right: 0; }
  .nav-toggle { display: flex; }

  .hero-stats { gap: 24px; }

  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .skills-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }

  .hero-name { letter-spacing: -1px; }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-stats { flex-direction: column; gap: 16px; text-align: center; }
}

/* =====================================================
   CUSTOM CURSOR GLOW (optional, lightweight)
   ===================================================== */
.cursor-glow {
  position: fixed;
  width: 300px; height: 300px;
  pointer-events: none;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108,92,231,.08) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  z-index: 9999;
  transition: opacity 0.3s;
  opacity: 0;
}

body:hover .cursor-glow { opacity: 1; }