@import url("https://fonts.googleapis.com/css2?family=DotGothic16&family=Shippori+Mincho:wght@400;700&family=Source+Sans+Pro:ital,wght@0,300;0,400;0,700;1,400&family=Turret+Road:wght@400;700&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap");

:root {
  --accent: #00e5a0;
  --accent2: #0af;
  --dark: #080c10;
  --dark2: #0d1117;
  --card: #111820;
  --border: rgba(255,255,255,0.07);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--dark);
  color: #e2e8f0;
  font-family: 'DM Sans', sans-serif;
  overflow-x: hidden;
}

h1, h2, h3, h4, .heading { font-family: 'Syne', sans-serif; }

/* Grain overlay */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.35;
}

/* Sidebar */
#sidebar {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: 260px;
  background: var(--dark2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2.5rem 1.5rem;
  z-index: 100;
  transition: transform 0.3s ease;
}

.avatar-ring {
  width: 100px; height: 100px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  padding: 3px;
  margin-bottom: 1rem;
}
.avatar-inner {
  width: 100%; height: 100%;
  border-radius: 50%;
  background: var(--card);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  color: #94a3b8;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  letter-spacing: 0.02em;
}
.nav-link:hover, .nav-link.active {
  color: var(--accent);
  background: rgba(0, 229, 160, 0.07);
}
.nav-link i { font-size: 1.1rem; }

.social-link {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: #64748b;
  font-size: 1rem;
  transition: all 0.2s;
  text-decoration: none;
}
.social-link:hover { color: var(--accent); border-color: var(--accent); }

/* Main content */
#main {
  margin-left: 260px;
  min-height: 100vh;
}

/* Sections */
section {
  min-height: 100vh;
  padding: 5rem 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Hero */
#hero {
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(0,229,160,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(0,170,255,0.05) 0%, transparent 60%);
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0,229,160,0.1);
  border: 1px solid rgba(0,229,160,0.25);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.35rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  color: #64748b;
  font-size: 1.1rem;
  max-width: 520px;
  line-height: 1.7;
  margin: 1.25rem 0 2rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #080c10;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.2s;
  letter-spacing: 0.02em;
}
.btn-primary:hover { background: #00c98a; transform: translateY(-1px); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--border);
  color: #94a3b8;
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.2s;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* Section headings */
.section-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.section-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #f1f5f9;
  margin-bottom: 1rem;
}

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
  transition: all 0.3s;
}
.card:hover {
  border-color: rgba(0,229,160,0.2);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

/* Skills */
.skill-bar-bg {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 100px;
  overflow: hidden;
}
.skill-bar-fill {
  height: 100%;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform-origin: left;
  animation: fillBar 1.2s ease forwards;
  transform: scaleX(0);
}
@keyframes fillBar { to { transform: scaleX(1); } }

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: #94a3b8;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.4rem 0.85rem;
  border-radius: 6px;
  transition: all 0.2s;
}
.tech-badge:hover { border-color: var(--accent); color: var(--accent); background: rgba(0,229,160,0.05); }

/* Project card */
.project-img {
  height: 180px;
  border-radius: 10px;
  overflow: hidden;
  background: linear-gradient(135deg, #1a2332, #0d1623);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  margin-bottom: 1.25rem;
  border: 1px solid var(--border);
  position: relative;
}
.project-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(8,12,16,0.7));
}
.project-tag {
  font-size: 0.7rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  background: rgba(0,229,160,0.1);
  color: var(--accent);
  border: 1px solid rgba(0,229,160,0.2);
  font-weight: 600;
  letter-spacing: 0.03em;
}

/* Timeline */
.timeline-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  flex-shrink: 0;
  margin-top: 4px;
}
.timeline-line {
  width: 2px;
  flex-grow: 1;
  background: linear-gradient(to bottom, var(--accent), transparent);
  margin: 4px 0 0 5px;
}

/* Contact form */
.form-input {
  width: 100%;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  color: #e2e8f0;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}
.form-input:focus { border-color: var(--accent); }
.form-input::placeholder { color: #374151; }

/* Divider */
.divider {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 0 4rem;
}

/* Stats */
.stat-num {
  font-family: 'Syne', sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Scroll indicator */
.scroll-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #374151;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.scroll-indicator span {
  width: 40px;
  height: 1px;
  background: #374151;
}

/* Cursor dot */
.cursor-glow {
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,229,160,0.04) 0%, transparent 70%);
  position: fixed;
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 9998;
  transition: all 0.1s linear;
}

/* Mobile */
#hamburger { display: none; }

@media (max-width: 1024px) {
  #sidebar { width: 220px; }
  #main { margin-left: 220px; }
  section { padding: 4rem 2.5rem; }
}
@media (max-width: 768px) {
  #sidebar {
    transform: translateX(-100%);
    width: 260px;
  }
  #sidebar.open { transform: translateX(0); }
  #main { margin-left: 0; }
  section { padding: 4rem 1.5rem; }
  #hamburger {
    display: flex;
    position: fixed;
    top: 1rem; left: 1rem;
    z-index: 200;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    width: 40px; height: 40px;
    align-items: center; justify-content: center;
    cursor: pointer;
    color: #e2e8f0;
    font-size: 1.2rem;
  }
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.glowing-border {
  position: relative;
}
.glowing-border::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 17px;
  background: linear-gradient(135deg, rgba(0,229,160,0.4), rgba(0,170,255,0.4), transparent, transparent);
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s;
}
.glowing-border:hover::before { opacity: 1; }