*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg-primary: #0a0a1a;
  --bg-secondary: #12122a;
  --bg-card: #1a1a3e;
  --text-primary: #f0f0ff;
  --text-secondary: #a0a0cc;
  --accent-1: #7c3aed;
  --accent-2: #06b6d4;
  --accent-3: #f59e0b;
  --gradient-main: linear-gradient(135deg, #7c3aed, #06b6d4);
  --gradient-hero: linear-gradient(135deg, #7c3aed 0%, #a855f7 30%, #06b6d4 70%, #22d3ee 100%);
  --gradient-card: linear-gradient(145deg, rgba(124,58,237,0.1), rgba(6,182,212,0.1));
  --shadow-glow: 0 0 40px rgba(124,58,237,0.3);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
}
html { scroll-behavior: smooth; scrollbar-width: thin; scrollbar-color: var(--accent-1) var(--bg-secondary); }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent-1); border-radius: 3px; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a.card-link { display: block; color: inherit; text-decoration: none; }
a.card-link:hover { color: inherit; }
a.card-link .skill-category, a.card-link .project-card { cursor: pointer; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---- Particle Canvas ---- */
#particles-canvas { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; z-index: 0; pointer-events: none; }

/* ---- Navigation ---- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 16px 0; transition: var(--transition); background: transparent;
}
.navbar.scrolled { background: rgba(10,10,26,0.92); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid rgba(124,58,237,0.15); padding: 10px 0; }
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.logo {
  font-family: var(--font-display); font-weight: 700; font-size: 1.5rem;
  background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.logo span { color: var(--text-primary); -webkit-text-fill-color: var(--text-primary); }
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  font-size: 0.875rem; font-weight: 500; color: var(--text-secondary);
  transition: var(--transition); position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--gradient-main);
  transition: var(--transition); border-radius: 1px;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; background: none; border: none; padding: 4px;
}
.hamburger span { width: 28px; height: 2px; background: var(--text-primary); transition: var(--transition); border-radius: 2px; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---- WhatsApp Button ---- */
.whatsapp-float {
  position: fixed; bottom: 24px; right: 24px; z-index: 999;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25d366; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: var(--transition); cursor: pointer;
  animation: whatsapp-pulse 2s infinite;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 8px 30px rgba(37,211,102,0.6); }
.whatsapp-float svg { width: 28px; height: 28px; fill: #fff; }
@keyframes whatsapp-pulse {
  0% { box-shadow: 0 4px 20px rgba(37,211,102,0.4); }
  50% { box-shadow: 0 4px 35px rgba(37,211,102,0.7); }
  100% { box-shadow: 0 4px 20px rgba(37,211,102,0.4); }
}

/* ---- Hero ---- */
.hero { min-height: 100vh; display: flex; align-items: center; position: relative; z-index: 1; padding-top: 80px; }
.hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 20px;
  border-radius: 100px; background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.25); font-size: 0.8rem; font-weight: 500;
  color: var(--accent-2); margin-bottom: 24px; animation: fadeInUp 0.6s ease;
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-3); animation: pulse-dot 2s infinite; }
@keyframes pulse-dot { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(0.8); } }
.hero h1 { font-family: var(--font-display); font-size: clamp(2.5rem,5vw,4.2rem); font-weight: 800; line-height: 1.1; margin-bottom: 16px; }
.hero h1 .gradient-text { background: var(--gradient-hero); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero .typing-container { font-size: clamp(1rem,2vw,1.35rem); color: var(--text-secondary); margin-bottom: 24px; min-height: 2em; }
.hero .typing-container .highlight { color: var(--accent-2); -webkit-text-fill-color: var(--accent-2); border-right: 2px solid var(--accent-2); padding-right: 4px; animation: blink-caret 0.7s step-end infinite; }
@keyframes blink-caret { 50% { border-color: transparent; } }
.hero p { color: var(--text-secondary); font-size: 1.05rem; max-width: 520px; margin-bottom: 36px; line-height: 1.8; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 32px; border-radius: 100px; font-weight: 600;
  font-size: 0.95rem; transition: var(--transition); cursor: pointer;
  border: none; font-family: var(--font-body);
}
.btn-primary { background: var(--gradient-main); color: #fff; box-shadow: 0 4px 25px rgba(124,58,237,0.35); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 40px rgba(124,58,237,0.5); }
.btn-secondary { background: transparent; color: var(--text-primary); border: 1px solid rgba(255,255,255,0.15); }
.btn-secondary:hover { border-color: var(--accent-1); background: rgba(124,58,237,0.1); transform: translateY(-3px); }
.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; }
.hero-visual .avatar-frame {
  width: 380px; height: 380px; border-radius: 50%; position: relative;
  background: var(--gradient-hero); padding: 4px; animation: float 6s ease-in-out infinite;
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }
.hero-visual .avatar-inner {
  width: 100%; height: 100%; border-radius: 50%; background: var(--bg-primary);
  display: flex; align-items: center; justify-content: center; overflow: hidden;
  font-size: 6rem; font-weight: 800; font-family: var(--font-display);
  background: linear-gradient(135deg, #1a1a3e, #0a0a1a);
}
.hero-visual .avatar-inner span { background: var(--gradient-hero); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.floating-badge {
  position: absolute; padding: 12px 20px; border-radius: var(--radius-md);
  background: rgba(26,26,62,0.95); backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.08); font-size: 0.8rem; font-weight: 500;
  display: flex; align-items: center; gap: 8px;
  animation: float 5s ease-in-out infinite; box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.floating-badge:nth-child(2) { top: 10%; right: -5%; animation-delay: 0s; }
.floating-badge:nth-child(3) { bottom: 15%; left: -10%; animation-delay: 1.5s; }
.floating-badge .icon { font-size: 1.2rem; }

/* ---- Section Common ---- */
section { position: relative; z-index: 1; padding: 100px 0; }
.section-label {
  display: inline-block; padding: 6px 18px; border-radius: 100px;
  background: rgba(124,58,237,0.1); border: 1px solid rgba(124,58,237,0.2);
  color: var(--accent-2); font-size: 0.8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 2px; margin-bottom: 16px;
}
.section-title { font-family: var(--font-display); font-size: clamp(2rem,4vw,3rem); font-weight: 700; margin-bottom: 16px; }
.section-sub { color: var(--text-secondary); font-size: 1.05rem; max-width: 640px; margin-bottom: 60px; }
.section-header { text-align: center; margin-bottom: 20px; }

/* ---- Slider ---- */
.slider-section { background: var(--bg-secondary); }
.slider-container {
  position: relative; max-width: 1000px; margin: 0 auto;
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.slider-track { display: flex; transition: transform 0.6s cubic-bezier(0.25,0.46,0.45,0.94); }
.slider-slide { min-width: 100%; position: relative; }
.slider-slide img { width: 100%; height: 500px; object-fit: cover; display: block; }
.slider-overlay {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(10,10,26,0.9));
  padding: 40px 32px 24px;
}
.slider-overlay h3 { font-family: var(--font-display); font-size: 1.4rem; margin-bottom: 6px; }
.slider-overlay p { color: var(--text-secondary); font-size: 0.9rem; }
.slider-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(10,10,26,0.7); border: 1px solid rgba(255,255,255,0.1);
  color: #fff; font-size: 1.2rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition); z-index: 5;
}
.slider-btn:hover { background: var(--accent-1); }
.slider-prev { left: 16px; }
.slider-next { right: 16px; }
.slider-dots {
  display: flex; gap: 8px; justify-content: center;
  margin-top: 20px;
}
.slider-dots button {
  width: 10px; height: 10px; border-radius: 50%;
  border: none; background: rgba(255,255,255,0.2);
  cursor: pointer; transition: var(--transition); padding: 0;
}
.slider-dots button.active { background: var(--accent-1); width: 28px; border-radius: 5px; }

/* ---- About ---- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-content h3 { font-family: var(--font-display); font-size: 1.6rem; margin-bottom: 20px; }
.about-content p { color: var(--text-secondary); margin-bottom: 24px; font-size: 1rem; }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.stat-card {
  text-align: center; padding: 24px 16px; border-radius: var(--radius-md);
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}
.stat-card:hover { transform: translateY(-5px); border-color: rgba(124,58,237,0.3); }
.stat-card .num {
  font-family: var(--font-display); font-size: 2rem; font-weight: 700;
  background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-card .label { color: var(--text-secondary); font-size: 0.8rem; margin-top: 4px; }

/* ---- Skills ---- */
#skills { background: var(--bg-secondary); }
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 24px; }
.skill-category {
  background: var(--bg-card); border-radius: var(--radius-md);
  padding: 32px; border: 1px solid rgba(255,255,255,0.05);
  transition: var(--transition);
}
.skill-category:hover { border-color: rgba(124,58,237,0.2); transform: translateY(-4px); }
.skill-category .cat-icon { font-size: 2rem; margin-bottom: 12px; }
.skill-category h4 { font-family: var(--font-display); font-size: 1.15rem; margin-bottom: 16px; }
.skill-item { margin-bottom: 16px; }
.skill-item:last-child { margin-bottom: 0; }
.skill-item .skill-info { display: flex; justify-content: space-between; font-size: 0.85rem; margin-bottom: 6px; }
.skill-item .skill-info span:first-child { color: var(--text-primary); font-weight: 500; }
.skill-item .skill-info span:last-child { color: var(--accent-2); }
.skill-bar { width: 100%; height: 6px; background: rgba(255,255,255,0.06); border-radius: 4px; overflow: hidden; }
.skill-bar .fill {
  height: 100%; border-radius: 4px; background: var(--gradient-main);
  width: 0; transition: width 1.2s cubic-bezier(0.25,0.46,0.45,0.94);
}

/* ---- Projects ---- */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 28px; }
.project-card {
  background: var(--bg-card); border-radius: var(--radius-md); padding: 32px;
  border: 1px solid rgba(255,255,255,0.05); transition: var(--transition);
  position: relative; overflow: hidden;
}
.project-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-main); transform: scaleX(0); transform-origin: left;
  transition: transform 0.5s ease;
}
.project-card:hover::before { transform: scaleX(1); }
.project-card:hover { transform: translateY(-8px); border-color: rgba(124,58,237,0.2); box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.project-card .project-icon { font-size: 2.5rem; margin-bottom: 16px; }
.project-card h4 { font-family: var(--font-display); font-size: 1.2rem; margin-bottom: 8px; }
.project-card .project-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.project-card .project-tags span {
  padding: 4px 12px; border-radius: 100px;
  background: rgba(6,182,212,0.1); color: var(--accent-2);
  font-size: 0.75rem; font-weight: 500;
}
.project-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7; }

/* ---- Journey Timeline ---- */
#journey { background: var(--bg-secondary); }
.timeline { position: relative; max-width: 800px; margin: 0 auto; }
.timeline::before {
  content: ''; position: absolute; top: 0; left: 24px;
  width: 2px; height: 100%;
  background: linear-gradient(to bottom, var(--accent-1), var(--accent-2));
}
.timeline-item { position: relative; padding-left: 60px; padding-bottom: 48px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item .dot {
  position: absolute; left: 16px; top: 4px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--gradient-main); border: 3px solid var(--bg-secondary);
  z-index: 2; box-shadow: 0 0 20px rgba(124,58,237,0.4);
}
.timeline-item .date { font-size: 0.8rem; color: var(--accent-2); font-weight: 500; margin-bottom: 4px; }
.timeline-item h4 { font-family: var(--font-display); font-size: 1.1rem; margin-bottom: 6px; }
.timeline-item p { color: var(--text-secondary); font-size: 0.9rem; }

/* ---- Certifications ---- */
.certs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.cert-card {
  background: var(--bg-card); border-radius: var(--radius-md); padding: 28px;
  border: 1px solid rgba(255,255,255,0.05); text-align: center; transition: var(--transition);
}
.cert-card:hover { transform: translateY(-5px); border-color: rgba(6,182,212,0.3); }
.cert-card .cert-icon { font-size: 2.5rem; margin-bottom: 12px; }
.cert-card h5 { font-family: var(--font-display); font-size: 1rem; margin-bottom: 6px; }
.cert-card p { color: var(--text-secondary); font-size: 0.85rem; }

/* ---- Contact ---- */
#contact { background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%); }
.contact-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-info h3 { font-family: var(--font-display); font-size: 1.8rem; margin-bottom: 16px; }
.contact-info p { color: var(--text-secondary); margin-bottom: 32px; }
.contact-detail { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.contact-detail .cd-icon {
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(124,58,237,0.12); display: flex;
  align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0;
}
.contact-detail .cd-label { font-size: 0.8rem; color: var(--text-secondary); }
.contact-detail .cd-value { font-weight: 500; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.contact-form input, .contact-form textarea {
  width: 100%; padding: 16px 20px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  color: var(--text-primary); font-size: 0.95rem; font-family: var(--font-body);
  transition: var(--transition); outline: none;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent-1); box-shadow: 0 0 0 3px rgba(124,58,237,0.1); }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: rgba(160,160,204,0.5); }
.contact-form textarea { min-height: 140px; resize: vertical; }

/* ---- Footer ---- */
footer { position: relative; z-index: 1; border-top: 1px solid rgba(255,255,255,0.05); padding: 40px 0; background: var(--bg-primary); }
footer .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
footer p { color: var(--text-secondary); font-size: 0.85rem; }
.social-links { display: flex; gap: 16px; }
.social-links a {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,0.05); display: flex;
  align-items: center; justify-content: center;
  transition: var(--transition); font-size: 1.1rem;
}
.social-links a:hover { background: var(--gradient-main); transform: translateY(-3px); }

/* ---- Reveal ---- */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

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

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero p { margin: 0 auto 36px; }
  .hero-actions { justify-content: center; }
  .hero-visual .avatar-frame { width: 280px; height: 280px; }
  .hero-visual { order: -1; margin-bottom: 20px; }
  .floating-badge:nth-child(2) { right: 5%; }
  .floating-badge:nth-child(3) { left: 5%; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; }
  .slider-slide img { height: 380px; }
}
@media (max-width: 768px) {
  .nav-links {
    position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
    background: rgba(10,10,26,0.98); backdrop-filter: blur(20px);
    flex-direction: column; justify-content: center; padding: 40px;
    transition: var(--transition); border-left: 1px solid rgba(255,255,255,0.05);
  }
  .nav-links.open { right: 0; }
  .hamburger { display: flex; }
  section { padding: 70px 0; }
  .about-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .skills-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: 1fr 1fr; }
  .floating-badge { display: none; }
  .slider-slide img { height: 300px; }
}
@media (max-width: 480px) {
  .about-stats { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: 1fr; }
  .hero-visual .avatar-frame { width: 220px; height: 220px; }
  .hero-visual .avatar-inner { font-size: 4rem; }
  .btn { padding: 12px 24px; font-size: 0.85rem; }
  .slider-slide img { height: 220px; }
}