/* ===== RESET & VARIABLES ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #080810;
  --surface:   #0f0f1a;
  --surface2:  #161628;
  --border:    rgba(139, 92, 246, 0.15);
  --accent:    #8b5cf6;
  --accent2:   #06b6d4;
  --accent3:   #10d9a0;
  --text:      #e2e8f0;
  --muted:     #94a3b8;
  --html-col:  #f97316;
  --css-col:   #8b5cf6;
  --radius:    16px;
  --font-head: 'Syne', sans-serif;
  --font-mono: 'DM Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 2px; }

/* ===== CANVAS BG ===== */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ===== CURSOR ===== */
.cursor {
  position: fixed;
  width: 12px; height: 12px;
  background: var(--accent2);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s, background 0.2s;
  mix-blend-mode: screen;
}
.cursor-trail {
  position: fixed;
  width: 36px; height: 36px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: left 0.12s ease, top 0.12s ease;
  opacity: 0.5;
}
a:hover ~ .cursor, button:hover ~ .cursor { transform: translate(-50%, -50%) scale(2); }

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 3rem;
  transition: background 0.4s, backdrop-filter 0.4s;
}
.nav.scrolled {
  background: rgba(8, 8, 16, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  color: #fff;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 2.5rem;
}
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent2); }
.nav-burger { display: none; }

/* ===== SECTIONS ===== */
.section { padding: 8rem 0; position: relative; z-index: 1; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }

.section-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 2rem;
}
.accent { color: var(--accent); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 0 3rem;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  gap: 4rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--accent3);
  border: 1px solid rgba(16, 217, 160, 0.3);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.8s ease both;
}
.dot {
  width: 8px; height: 8px;
  background: var(--accent3);
  border-radius: 50%;
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16, 217, 160, 0.4); }
  50% { box-shadow: 0 0 0 6px rgba(16, 217, 160, 0); }
}

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(3.5rem, 8vw, 6rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -2px;
  margin-bottom: 1.5rem;
  overflow: hidden;
}
.hero-title .line {
  display: block;
  animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.hero-title .line:nth-child(1) { animation-delay: 0.1s; }
.hero-title .line:nth-child(2) { animation-delay: 0.2s; }
.accent-line { color: var(--accent); }

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
@keyframes fadeUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.hero-sub {
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: 2.5rem;
  min-height: 1.5em;
  animation: fadeUp 0.8s 0.4s ease both;
}
.caret {
  display: inline-block;
  animation: blink 0.9s infinite;
  color: var(--accent2);
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeUp 0.8s 0.5s ease both;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  text-decoration: none;
  font-weight: 400;
  transition: all 0.25s;
  border: none;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 30px rgba(139, 92, 246, 0.35);
}
.btn-primary:hover {
  background: #7c3aed;
  box-shadow: 0 0 50px rgba(139, 92, 246, 0.6);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--accent2);
  color: var(--accent2);
  transform: translateY(-2px);
}

/* ===== AVATAR ===== */
.hero-avatar-wrap {
  position: relative;
  width: 340px; height: 340px;
  flex-shrink: 0;
  animation: fadeUp 1s 0.3s ease both;
}
.hero-avatar {
  width: 280px; height: 280px;
  border-radius: 50%;
  object-fit: cover;
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  border: 3px solid rgba(139, 92, 246, 0.4);
}
.avatar-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px solid rgba(139, 92, 246, 0.3);
  animation: spin 18s linear infinite;
}
.ring2 {
  inset: 15px;
  border-color: rgba(6, 182, 212, 0.25);
  animation-direction: reverse;
  animation-duration: 12s;
}
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.avatar-glow {
  position: absolute;
  top: 50%; left: 50%;
  width: 200px; height: 200px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(139, 92, 246, 0.25) 0%, transparent 70%);
  filter: blur(30px);
  z-index: 1;
  animation: glowPulse 3s ease-in-out infinite;
}
@keyframes glowPulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--muted);
  text-transform: uppercase;
  animation: fadeUp 1s 1s ease both;
  grid-column: 1 / -1;
}
.scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollDrop 2s ease-in-out infinite;
}
@keyframes scrollDrop {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.5); opacity: 0.3; }
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about-text p {
  color: var(--muted);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: border-color 0.3s, transform 0.3s;
}
.stat-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.stat-num {
  display: block;
  font-family: var(--font-head);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

/* ===== PROJECTS ===== */
.projects { background: var(--surface); }
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}
.project-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: scaleX(0);
  transition: transform 0.4s;
}
.project-card:hover::before { transform: scaleX(1); }
.project-card:hover {
  border-color: rgba(139, 92, 246, 0.4);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(139, 92, 246, 0.1);
}
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.card-lang {
  font-size: 0.72rem;
  padding: 0.2rem 0.7rem;
  border-radius: 100px;
  display: flex; align-items: center; gap: 0.4rem;
}
.card-lang::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: currentColor;
}
.card-lang.html { color: var(--html-col); background: rgba(249, 115, 22, 0.1); }
.card-lang.css { color: var(--css-col); background: rgba(139, 92, 246, 0.1); }
.card-tag {
  font-size: 0.7rem;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.15rem 0.6rem;
  border-radius: 100px;
}
.card-title {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: #fff;
}
.card-desc {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}
.card-stack {
  font-size: 0.72rem;
  color: var(--accent2);
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--accent);
  text-decoration: none;
  transition: gap 0.2s, color 0.2s;
}
.card-link:hover { gap: 0.7rem; color: var(--accent2); }

/* ===== SKILLS ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}
.skill-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
  transition: all 0.3s;
  animation: fadeUp 0.6s calc(var(--i) * 0.08s) ease both;
  opacity: 0;
}
.skill-item.visible { opacity: 1; }
.skill-item:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 10px 40px rgba(139, 92, 246, 0.15);
}
.skill-icon {
  width: 48px; height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent2);
  font-size: 1.5rem;
}
.skill-icon svg { width: 100%; height: 100%; }
.skill-item span { font-size: 0.85rem; color: var(--muted); }

/* ===== CONTACT ===== */
.contact { background: var(--surface); }
.contact-inner { text-align: center; }
.contact-sub {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 2.5rem;
  margin-top: -0.5rem;
}
.contact-links { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
  transition: all 0.25s;
}
.contact-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(139, 92, 246, 0.2);
}

/* ===== FOOTER ===== */
.footer {
  padding: 2rem;
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

/* ===== REVEAL ANIMATIONS ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-delay="100"] { transition-delay: 0.1s; }
.reveal[data-delay="200"] { transition-delay: 0.2s; }
.reveal[data-delay="300"] { transition-delay: 0.3s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding: 6rem 2rem 4rem; }
  .hero-avatar-wrap { width: 240px; height: 240px; margin: 0 auto; }
  .hero-avatar { width: 200px; height: 200px; }
  .hero-actions { justify-content: center; }
  .hero-scroll-hint { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .about-stats { grid-template-columns: repeat(3, 1fr); }
  .projects-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .nav-burger { display: flex; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 5px; }
  .nav-burger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }
}
@media (max-width: 500px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .about-stats { grid-template-columns: 1fr; }
}