:root {
  --bg:          #050810;
  --bg2:         #080d1a;
  --surface:     #0d1427;
  --surface2:    #111c35;
  --accent:      #00f5c4;
  --accent2:     #0066ff;
  --accent3:     #ff3b6b;
  --text:        #e0e8ff;
  --text-dim:    #6a7a9b;
  --text-dimmer: #3a4a6b;
  --border:      rgba(0,245,196,0.15);
  --glow:        0 0 24px rgba(0,245,196,0.3);
  --glow2:       0 0 24px rgba(0,102,255,0.25);
  --mono:        'Space Mono', monospace;
  --sans:        'Syne', sans-serif;
  --radius:      2px;
  --transition:  0.25s cubic-bezier(.4,0,.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  overflow-x: hidden;
  cursor: none;
}
img, canvas { display: block; }
a { cursor: none; }
button { cursor: none; }

.cursor {
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  position: fixed; pointer-events: none; z-index: 9999;
  transform: translate(-50%,-50%);
  transition: width var(--transition), height var(--transition), opacity var(--transition);
  mix-blend-mode: screen;
  will-change: left, top;
}
.cursor-ring {
  width: 36px; height: 36px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  position: fixed; pointer-events: none; z-index: 9998;
  transform: translate(-50%,-50%);
  opacity: 0.45;
  will-change: left, top;
}
.cursor.hover  { width: 18px; height: 18px; }
.cursor.click  { transform: translate(-50%,-50%) scale(0.7); }

#bg-canvas {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}

section { position: relative; z-index: 1; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }

.section-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.section-title {
  font-family: var(--sans);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 0.8rem;
}
.section-line {
  width: 48px; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  margin-bottom: 3rem;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }

.btn-primary {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.85rem 2rem;
  background: var(--accent);
  color: var(--bg);
  border: none;
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
  background: #00d4ab;
  transform: translateY(-2px);
  box-shadow: var(--glow);
}
.btn-ghost {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.85rem 2rem;
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: border-color var(--transition), color var(--transition), transform var(--transition);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.4rem 4rem;
  background: rgba(5,8,16,0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: padding var(--transition), border-color var(--transition), background var(--transition);
}
nav.scrolled {
  padding: 0.9rem 4rem;
  border-bottom-color: var(--border);
  background: rgba(5,8,16,0.92);
}
.nav-logo {
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-decoration: none;
}
.nav-logo span { color: var(--text-dim); }
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.5rem 1.2rem;
  text-decoration: none;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background var(--transition), color var(--transition);
}
.nav-cta:hover { background: var(--accent); color: var(--bg); }

.hamburger {
  display: none; flex-direction: column;
  gap: 5px; background: none; border: none;
}
.hamburger span {
  width: 24px; height: 1.5px;
  background: var(--accent);
  transition: all var(--transition);
  display: block;
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav {
  display: none;
  position: fixed; inset: 0;
  background: var(--bg);
  z-index: 99;
  flex-direction: column;
  align-items: center; justify-content: center;
  gap: 2.5rem;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-family: var(--mono);
  font-size: 1.1rem;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: color var(--transition);
}
.mobile-nav a:hover { color: var(--accent); }

#home {
  min-height: 100vh;
  display: flex; align-items: center;
  padding-top: 80px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--accent);
  border: 1px solid var(--border);
  padding: 0.35rem 0.9rem;
  margin-bottom: 1.5rem;
  letter-spacing: 0.1em;
  animation: fadeSlideUp 0.6s ease both;
}
.hero-badge .dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 1.6s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.35; transform: scale(0.75); }
}

.hero-name {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.0;
  margin-bottom: 0.5rem;
  animation: fadeSlideUp 0.7s 0.1s ease both;
}
.hero-name .accent { color: var(--accent); }

.hero-role {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  animation: fadeSlideUp 0.7s 0.2s ease both;
}
.hero-role .typed-cursor { color: var(--accent); }
.typed-text { color: var(--accent2); }

.hero-desc {
  font-size: 0.97rem;
  color: var(--text-dim);
  line-height: 1.75;
  max-width: 460px;
  margin-bottom: 2.5rem;
  animation: fadeSlideUp 0.7s 0.3s ease both;
}
.hero-desc strong { color: var(--text); }

.hero-actions {
  display: flex; gap: 1rem; flex-wrap: wrap;
  animation: fadeSlideUp 0.7s 0.4s ease both;
}

.hero-socials {
  display: flex; gap: 1rem;
  margin-top: 2rem;
  animation: fadeSlideUp 0.7s 0.5s ease both;
}
.hero-socials a {
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  font-size: 0.88rem;
  text-decoration: none;
  transition: all var(--transition);
}
.hero-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: var(--glow);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex; gap: 2.5rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  animation: fadeSlideUp 0.7s 0.6s ease both;
}
.stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
  display: block;
  line-height: 1;
}
.stat-lbl {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Hero Visual */
.hero-visual {
  display: flex; align-items: center; justify-content: center;
  position: relative;
  animation: fadeSlideUp 0.9s 0.2s ease both;
}
#hero-canvas {
  width: 400px; height: 400px;
  border-radius: 50%;
  border: 1px solid var(--border);
}
.ring {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed;
  pointer-events: none;
}
.ring-1 {
  width: 420px; height: 420px;
  border-color: rgba(0,245,196,0.2);
  animation: spin 20s linear infinite;
}
.ring-2 {
  width: 460px; height: 460px;
  border-color: rgba(0,102,255,0.15);
  animation: spin 30s linear infinite reverse;
}
@keyframes spin { to { transform: rotate(360deg); } }

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: none; }
}

#about { padding: 6rem 0; }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.about-text p {
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 1.2rem;
  font-size: 0.95rem;
}
.about-text p strong { color: var(--accent); }

.about-info-list {
  margin-top: 2rem;
  display: flex; flex-direction: column; gap: 0.8rem;
}
.about-info-item {
  display: flex; align-items: center; gap: 1rem;
  font-family: var(--mono); font-size: 0.78rem;
  color: var(--text-dim);
}
.about-info-item .icon {
  width: 32px; height: 32px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  font-size: 0.75rem;
  flex-shrink: 0;
}
.about-info-item a {
  color: var(--accent2);
  text-decoration: none;
}
.about-info-item a:hover { color: var(--accent); }

.about-right { display: flex; flex-direction: column; gap: 1.5rem; }

.edu-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 1.5rem;
  transition: transform var(--transition), box-shadow var(--transition);
}
.edu-card:hover {
  transform: translateX(4px);
  box-shadow: -4px 0 20px rgba(0,245,196,0.1);
}
.edu-card .tag {
  font-family: var(--mono); font-size: 0.65rem;
  color: var(--accent); letter-spacing: 0.15em;
  text-transform: uppercase; margin-bottom: 0.5rem;
}
.edu-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 0.3rem; }
.edu-card p  { font-size: 0.82rem; color: var(--text-dim); font-family: var(--mono); }

.about-quote {
  background: var(--surface2);
  border-left: 3px solid var(--accent2);
  padding: 1.2rem 1.5rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  font-style: italic;
  line-height: 1.75;
}

#skills { padding: 6rem 0; background: var(--bg2); }
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.skill-category {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.8rem;
  transition: border-color var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}
.skill-category::before {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.skill-category:hover { border-color: var(--accent); transform: translateY(-4px); }
.skill-category:hover::before { opacity: 1; }

.skill-cat-icon {
  width: 44px; height: 44px;
  background: rgba(0,245,196,0.06);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 1rem;
}
.skill-cat-title {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.skill-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.skill-tag {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  border: 1px solid var(--text-dimmer);
  padding: 0.3rem 0.65rem;
  transition: all var(--transition);
}
.skill-tag:hover { border-color: var(--accent); color: var(--accent); }
.skill-tag.primary {
  border-color: rgba(0,245,196,0.4);
  color: var(--accent);
  background: rgba(0,245,196,0.06);
}

#projects { padding: 6rem 0; }
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.project-card::after {
  content: '';
  position: absolute; top: 0; right: 0;
  width: 120px; height: 120px;
  background: radial-gradient(circle at top right, rgba(0,245,196,0.07), transparent 70%);
  pointer-events: none;
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,245,196,0.08);
}
.project-card.featured {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  background: linear-gradient(135deg, var(--surface), rgba(0,245,196,0.04));
}
.project-header {
  display: flex; align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.project-icon { font-size: 1.5rem; }
.project-links-top { display: flex; gap: 0.5rem; }
.project-links-top a {
  width: 32px; height: 32px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  text-decoration: none;
  transition: all var(--transition);
}
.project-links-top a:hover { border-color: var(--accent); color: var(--accent); }
.project-label {
  font-family: var(--mono); font-size: 0.65rem;
  color: var(--accent); letter-spacing: 0.15em;
  text-transform: uppercase; margin-bottom: 0.4rem;
}
.project-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
}
.project-desc {
  font-size: 0.88rem; color: var(--text-dim);
  line-height: 1.75; margin-bottom: 1.2rem;
  flex: 1;
}
.project-highlights { margin-bottom: 1.2rem; }
.project-highlight-item {
  display: flex; gap: 0.6rem; align-items: flex-start;
  font-family: var(--mono); font-size: 0.72rem;
  color: var(--text-dim); line-height: 1.6;
  margin-bottom: 0.5rem;
}
.project-highlight-item::before {
  content: '▸';
  color: var(--accent);
  flex-shrink: 0;
}
.project-stack { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: auto; }
.stack-tag {
  font-family: var(--mono); font-size: 0.65rem;
  padding: 0.25rem 0.55rem;
  background: rgba(0,245,196,0.06);
  border: 1px solid rgba(0,245,196,0.2);
  color: var(--accent);
}

/* Placeholder cards */
.project-card.placeholder {
  border: 1px dashed var(--text-dimmer);
  background: transparent;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 200px;
  text-align: center;
}
.project-card.placeholder:hover {
  border-color: var(--accent2);
  background: rgba(0,102,255,0.04);
}
.placeholder-plus {
  width: 48px; height: 48px;
  border: 1px dashed var(--text-dimmer);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  color: var(--text-dimmer);
  transition: all var(--transition);
}
.project-card.placeholder:hover .placeholder-plus {
  border-color: var(--accent2);
  color: var(--accent2);
}
.project-card.placeholder p {
  font-family: var(--mono); font-size: 0.72rem;
  color: var(--text-dimmer); line-height: 1.6;
}
.project-card.placeholder:hover p { color: var(--text-dim); }

#experience { padding: 6rem 0; background: var(--bg2); }
.exp-timeline { position: relative; padding-left: 2rem; }
.exp-timeline::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), var(--accent2), transparent);
}
.exp-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 2rem;
}
.exp-item::before {
  content: '';
  position: absolute; left: -2rem; top: 6px;
  width: 10px; height: 10px;
  background: var(--accent);
  border: 2px solid var(--bg);
  border-radius: 50%;
}
.exp-date {
  font-family: var(--mono); font-size: 0.68rem;
  color: var(--accent); letter-spacing: 0.1em;
  margin-bottom: 0.3rem;
  text-transform: uppercase;
}
.exp-role { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.2rem; }
.exp-company { font-family: var(--mono); font-size: 0.8rem; color: var(--accent2); margin-bottom: 0.8rem; }
.exp-bullets { list-style: none; }
.exp-bullets li {
  font-size: 0.88rem; color: var(--text-dim);
  line-height: 1.7; margin-bottom: 0.4rem;
  padding-left: 1.2rem; position: relative;
}
.exp-bullets li::before {
  content: '▸';
  position: absolute; left: 0;
  color: var(--accent);
}

#contact { padding: 6rem 0; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.contact-left p {
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 2rem;
  font-size: 0.95rem;
}
.contact-left p strong { color: var(--accent); }
.contact-items { display: flex; flex-direction: column; gap: 1rem; }
.contact-item {
  display: flex; align-items: center; gap: 1rem;
  font-family: var(--mono); font-size: 0.8rem;
}
.contact-item .ci-icon {
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent); font-size: 0.85rem;
  flex-shrink: 0;
  transition: all var(--transition);
}
.contact-item:hover .ci-icon {
  border-color: var(--accent);
  box-shadow: var(--glow);
}
.contact-item .ci-text { color: var(--text-dim); }
.contact-item .ci-text a {
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition);
}
.contact-item .ci-text a:hover { color: var(--accent); }

.contact-form-box {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2rem;
}
.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block;
  font-family: var(--mono); font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.82rem;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color var(--transition);
  appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { resize: vertical; min-height: 110px; }
.form-group select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236a7a9b' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.9rem center; }
.form-note {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--text-dimmer);
  margin-top: 0.8rem;
  text-align: center;
}
.form-note a { color: var(--accent); text-decoration: none; }

footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-dimmer);
}
footer a { color: var(--accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* ─── BACK TO TOP ─── */
#top-btn {
  position: fixed; bottom: 2rem; right: 2rem;
  width: 44px; height: 44px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 0.9rem;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: all var(--transition);
  z-index: 50;
}
#top-btn.show { opacity: 1; pointer-events: auto; }
#top-btn:hover { background: var(--accent); color: var(--bg); border-color: var(--accent); }

@media (max-width: 900px) {
  nav { padding: 1rem 1.5rem; }
  nav.scrolled { padding: 0.7rem 1.5rem; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .hero-inner { grid-template-columns: 1fr; gap: 2rem; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card.featured { grid-column: span 1; grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 1.5rem; }
}
@media (max-width: 600px) {
  .skills-grid { grid-template-columns: 1fr; }
  .section-title { font-size: 1.8rem; }
  .hero-name { font-size: 2.8rem; }
  .container { padding: 0 1.2rem; }
}