:root {
  --bg:          #080c14;
  --surface:     #0f1624;
  --surface2:    #161f32;
  --surface3:    #1e2a42;
  --primary:     #22d3ee;
  --primary-dim: rgba(34,211,238,.15);
  --secondary:   #818cf8;
  --accent:      #fb923c;
  --text:        #e2e8f0;
  --muted:       #64748b;
  --border:      rgba(255,255,255,.07);
  --radius:      12px;
  --radius-lg:   20px;
  --shadow:      0 4px 40px rgba(0,0,0,.5);
  --glow:        0 0 40px rgba(34,211,238,.2);
  --font:        'Inter', sans-serif;
  --mono:        'JetBrains Mono', monospace;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

::selection { background: var(--primary-dim); color: var(--primary); }

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

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

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-label {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--muted);
  max-width: 540px;
  font-size: 1.05rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .25s ease;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--bg);
}
.btn-primary:hover {
  background: #67e8f9;
  color: var(--bg);
  box-shadow: 0 0 24px rgba(34,211,238,.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-dim);
  transform: translateY(-2px);
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  padding: 18px 0;
  transition: all .35s ease;
}

#navbar.scrolled {
  background: rgba(8,12,20,.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

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

.nav-logo {
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: .05em;
}
.nav-logo span { color: var(--text); }

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: .85rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: .04em;
  transition: color .2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width .25s ease;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta { display: flex; gap: 12px; align-items: center; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s ease;
}
.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 {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

#hero::before {
  content: '';
  position: absolute;
  top: -200px; left: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(34,211,238,.12) 0%, transparent 70%);
  z-index: 0;
  animation: orb1 8s ease-in-out infinite;
}
#hero::after {
  content: '';
  position: absolute;
  bottom: -200px; right: -200px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(129,140,248,.1) 0%, transparent 70%);
  z-index: 0;
  animation: orb2 10s ease-in-out infinite;
}

@keyframes orb1 {
  0%,100% { transform: translate(0,0); }
  50% { transform: translate(60px, 40px); }
}
@keyframes orb2 {
  0%,100% { transform: translate(0,0); }
  50% { transform: translate(-50px, -30px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero-greeting {
  font-family: var(--mono);
  font-size: .9rem;
  color: var(--primary);
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeUp .7s ease .3s forwards;
}

.hero-name {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -.02em;
  opacity: 0;
  animation: fadeUp .7s ease .5s forwards;
}
.hero-name .highlight {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-role {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--muted);
  margin-top: 16px;
  opacity: 0;
  animation: fadeUp .7s ease .7s forwards;
}

#typewriter {
  color: var(--text);
  font-weight: 600;
}

.cursor {
  display: inline-block;
  width: 3px;
  height: 1.1em;
  background: var(--primary);
  margin-left: 3px;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:0; } }

.hero-desc {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 540px;
  margin-top: 20px;
  line-height: 1.75;
  opacity: 0;
  animation: fadeUp .7s ease .9s forwards;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 36px;
  opacity: 0;
  animation: fadeUp .7s ease 1.1s forwards;
}

.hero-socials {
  display: flex;
  gap: 16px;
  margin-top: 48px;
  opacity: 0;
  animation: fadeUp .7s ease 1.3s forwards;
}

.social-link {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 1rem;
  transition: all .25s ease;
}
.social-link:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-dim);
  transform: translateY(-3px);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: .75rem;
  font-family: var(--mono);
  letter-spacing: .1em;
  animation: fadeIn 1s ease 2s forwards;
  opacity: 0;
}
.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

@keyframes fadeUp {
  from { opacity:0; transform: translateY(20px); }
  to { opacity:1; transform: translateY(0); }
}
@keyframes fadeIn { to { opacity:1; } }

.floating-code {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  display: none;
}
@media (min-width: 1100px) { .floating-code { display: block; } }

.code-card {
  background: rgba(15,22,36,.92);
  border: 1px solid rgba(34,211,238,.15);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  font-family: var(--mono);
  font-size: .78rem;
  line-height: 1.7;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  max-width: 300px;
  animation: float 6s ease-in-out infinite;
}
.code-card:nth-child(2) {
  margin-top: 16px;
  margin-left: 40px;
  animation-delay: 1.5s;
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.code-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; }
.dot-red { background:#ff5f57; }
.dot-yellow { background:#febc2e; }
.dot-green { background:#28c840; }
.code-bar { display: flex; gap: 6px; margin-bottom: 14px; }

.kw { color: #818cf8; }
.fn { color: #22d3ee; }
.str { color: #fb923c; }
.cm { color: #475569; }
.nu { color: #a3e635; }

#about { background: var(--surface); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 800px) { .about-grid { grid-template-columns: 1fr; gap: 40px; } }

.about-image-wrap {
  position: relative;
  display: flex;
  justify-content: center;
}

.about-img-box {
  width: 280px; height: 280px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary-dim), rgba(129,140,248,.15));
  display: flex; align-items: center; justify-content: center;
  font-size: 7rem;
  border: 1px solid rgba(34,211,238,.2);
  position: relative;
}

.about-stats {
  position: absolute;
  right: -20px;
  bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.stat-pill {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 8px 16px;
  display: flex; align-items: center; gap: 10px;
  box-shadow: var(--shadow);
  white-space: nowrap;
}
.stat-pill i { color: var(--primary); font-size: .9rem; }
.stat-pill strong { font-size: 1rem; color: var(--text); }
.stat-pill span { font-size: .75rem; color: var(--muted); }

.about-text .section-desc { max-width: 100%; margin-bottom: 24px; }

.about-list {
  list-style: none;
  display: flex; flex-direction: column; gap: 10px;
  margin-bottom: 28px;
}
.about-list li {
  display: flex; align-items: flex-start; gap: 12px;
  color: var(--muted); font-size: .95rem;
}
.about-list li i { color: var(--primary); margin-top: 3px; flex-shrink: 0; }

.about-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 32px;
}

.info-item {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.info-item .label {
  font-size: .7rem;
  font-family: var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.info-item .value { font-weight: 600; font-size: .9rem; color: var(--text); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color .25s, transform .25s;
}
.skill-card:hover {
  border-color: rgba(34,211,238,.3);
  transform: translateY(-3px);
}

.skill-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 10px;
}
.skill-name {
  display: flex; align-items: center; gap: 10px;
  font-weight: 600; font-size: .95rem;
}
.skill-icon {
  width: 32px; height: 32px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  background: var(--primary-dim);
  color: var(--primary);
}
.skill-pct { font-family: var(--mono); font-size: .8rem; color: var(--muted); }

.skill-bar {
  height: 5px;
  background: var(--surface3);
  border-radius: 100px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  width: 0;
  transition: width 1.2s cubic-bezier(.4,0,.2,1);
}

.tech-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 48px;
}

.tech-pill {
  display: flex; align-items: center; gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 8px 16px;
  font-size: .82rem; font-weight: 500;
  color: var(--muted);
  transition: all .2s;
}
.tech-pill:hover {
  border-color: var(--primary);
  color: var(--text);
  background: var(--primary-dim);
}
.tech-pill i { font-size: 1rem; }

#projects { background: var(--surface); }

.project-filters {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: .85rem; font-weight: 600;
  cursor: pointer;
  transition: all .2s ease;
  font-family: var(--font);
}
.filter-btn.active,
.filter-btn:hover {
  background: var(--primary-dim);
  border-color: var(--primary);
  color: var(--primary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

.project-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex; flex-direction: column; gap: 16px;
  transition: border-color .3s, transform .3s, box-shadow .3s;
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: opacity .3s;
}
.project-card:hover {
  border-color: rgba(34,211,238,.3);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.project-card:hover::before { opacity: 1; }

.project-card[data-cat="backend"]:hover::before {
  background: linear-gradient(90deg, #818cf8, #a78bfa);
}
.project-card[data-cat="frontend"]:hover::before {
  background: linear-gradient(90deg, #22d3ee, #67e8f9);
}
.project-card[data-cat="fullstack"]:hover::before {
  background: linear-gradient(90deg, #fb923c, #fbbf24);
}

.project-card.hidden { display: none; }

.project-top {
  display: flex; justify-content: space-between; align-items: flex-start;
}

.project-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.project-cat-badge {
  font-family: var(--mono);
  font-size: .68rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .12em;
  padding: 3px 10px;
  border-radius: 100px;
}
.cat-backend  { background: rgba(129,140,248,.15); color: #818cf8; border: 1px solid rgba(129,140,248,.25); }
.cat-frontend { background: var(--primary-dim); color: var(--primary); border: 1px solid rgba(34,211,238,.25); }
.cat-fullstack{ background: rgba(251,146,60,.15); color: #fb923c; border: 1px solid rgba(251,146,60,.25); }

.project-title { font-size: 1.15rem; font-weight: 700; color: var(--text); }
.project-desc  { color: var(--muted); font-size: .9rem; line-height: 1.65; flex: 1; }

.project-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.tag {
  padding: 3px 10px;
  border-radius: 6px;
  background: var(--surface3);
  color: var(--muted);
  font-size: .72rem;
  font-family: var(--mono);
  font-weight: 500;
  border: 1px solid var(--border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; } }

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

.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex; align-items: center; gap: 16px;
  transition: border-color .25s, transform .25s;
}
.contact-card:hover {
  border-color: var(--primary);
  transform: translateX(4px);
}

.contact-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius);
  background: var(--primary-dim);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-card-label {
  font-size: .72rem; font-family: var(--mono);
  text-transform: uppercase; letter-spacing: .1em;
  color: var(--muted); margin-bottom: 2px;
}
.contact-card-value { font-weight: 600; font-size: .92rem; color: var(--text); }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: .78rem; font-weight: 600;
  color: var(--muted); margin-bottom: 8px;
  text-transform: uppercase; letter-spacing: .06em;
  font-family: var(--mono);
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font);
  font-size: .95rem;
  transition: border-color .2s, box-shadow .2s;
  resize: vertical;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-dim);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--muted); }

.form-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 32px 0;
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
}
.footer-logo { font-family: var(--mono); font-size: 1rem; color: var(--primary); font-weight: 700; }
.footer-copy { color: var(--muted); font-size: .85rem; }
.footer-socials { display: flex; gap: 12px; }

#back-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: var(--primary);
  color: var(--bg);
  border: none; border-radius: 50%;
  font-size: 1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  z-index: 999;
  opacity: 0; pointer-events: none;
  transition: all .3s ease;
  box-shadow: 0 4px 20px rgba(34,211,238,.4);
}
#back-top.show { opacity: 1; pointer-events: all; }
#back-top:hover { transform: translateY(-3px); }

#progress-bar {
  position: fixed; top: 0; left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  z-index: 9999; width: 0%;
  transition: width .1s linear;
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }

  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(8,12,20,.97);
    backdrop-filter: blur(20px);
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    gap: 20px;
  }

  .section { padding: 70px 0; }
  .skills-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
}