@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

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

:root {
  --bg-primary: #0a0a1a;
  --bg-secondary: #0f0f2a;
  --bg-card: rgba(15, 15, 42, 0.7);
  --accent-1: #6c63ff;
  --accent-2: #00d4ff;
  --accent-3: #ff6b9d;
  --accent-4: #ffd93d;
  --text-primary: #e8e8f0;
  --text-secondary: #9a9ab8;
  --text-muted: #6b6b8a;
  --border: rgba(108, 99, 255, 0.15);
  --glow: rgba(108, 99, 255, 0.3);
  --glass: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
}

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-1); border-radius: 3px; }

/* ===== CURSOR GLOW ===== */
.cursor-glow {
  position: fixed;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108,99,255,0.08), transparent 70%);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: left 0.3s ease, top 0.3s ease;
}

/* ===== NAV ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 1rem 2rem;
  background: rgba(10, 10, 26, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: all 0.4s ease;
}
.navbar.scrolled { padding: 0.6rem 2rem; box-shadow: 0 4px 30px rgba(0,0,0,0.3); }
.nav-container { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
.nav-logo {
  font-size: 1.5rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}
.nav-logo span { font-weight: 400; opacity: 0.7; }
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  color: var(--text-secondary); text-decoration: none; font-size: 0.9rem;
  font-weight: 500; position: relative; padding: 0.3rem 0; transition: color 0.3s;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  transition: width 0.3s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; }
.nav-toggle span { width: 25px; height: 2px; background: var(--text-primary); transition: 0.3s; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; padding: 6rem 2rem 4rem;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(108,99,255,0.15) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 20%, rgba(0,212,255,0.1) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 80%, rgba(255,107,157,0.08) 0%, transparent 50%);
}
#particles-canvas {
  position: absolute; inset: 0; z-index: 1;
}
.hero-content {
  position: relative; z-index: 2; text-align: center; max-width: 900px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1.2rem; border-radius: 50px;
  background: var(--glass); border: 1px solid var(--glass-border);
  font-size: 0.85rem; color: var(--accent-2); margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s ease;
}
.hero-badge .dot { width: 8px; height: 8px; background: #00ff88; border-radius: 50%; animation: pulse-dot 2s infinite; }
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 900;
  line-height: 1.1; margin-bottom: 1rem;
  animation: fadeInUp 0.8s ease 0.1s both;
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2), var(--accent-3));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-size: 200% auto; animation: gradient-shift 4s ease infinite;
}
@keyframes gradient-shift { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.3rem); color: var(--text-secondary);
  max-width: 650px; margin: 0 auto 2rem; animation: fadeInUp 0.8s ease 0.2s both;
}
.hero-cta {
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}
.btn {
  padding: 0.85rem 2rem; border-radius: 12px; font-size: 0.95rem;
  font-weight: 600; text-decoration: none; transition: all 0.3s ease;
  cursor: pointer; border: none; display: inline-flex; align-items: center; gap: 0.5rem;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-1), #8b5cf6);
  color: white; box-shadow: 0 4px 20px rgba(108,99,255,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(108,99,255,0.5); }
.btn-outline {
  background: transparent; color: var(--text-primary);
  border: 1px solid var(--glass-border);
}
.btn-outline:hover { background: var(--glass); border-color: var(--accent-1); }
.hero-stats {
  display: flex; gap: 3rem; justify-content: center; margin-top: 3rem;
  animation: fadeInUp 0.8s ease 0.4s both;
}
.hero-stat { text-align: center; }
.hero-stat .number {
  font-size: 2rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-1));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-stat .label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.scroll-indicator {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); z-index: 2;
  animation: bounce 2s infinite;
}
.scroll-indicator .mouse {
  width: 26px; height: 40px; border: 2px solid var(--text-muted);
  border-radius: 13px; position: relative;
}
.scroll-indicator .wheel {
  width: 4px; height: 8px; background: var(--accent-1);
  border-radius: 2px; position: absolute; top: 8px; left: 50%;
  transform: translateX(-50%); animation: scroll-wheel 2s infinite;
}
@keyframes scroll-wheel { 0% { opacity: 1; top: 8px; } 100% { opacity: 0; top: 22px; } }
@keyframes bounce { 0%, 100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(10px); } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

/* ===== SECTIONS ===== */
section { padding: 6rem 2rem; position: relative; }
.section-container { max-width: 1200px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 4rem; }
.section-tag {
  display: inline-block; padding: 0.4rem 1rem; border-radius: 50px;
  font-size: 0.8rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 2px; margin-bottom: 1rem;
  background: rgba(108,99,255,0.1); color: var(--accent-1); border: 1px solid rgba(108,99,255,0.2);
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; margin-bottom: 1rem;
}
.section-desc { color: var(--text-secondary); max-width: 600px; margin: 0 auto; font-size: 1.05rem; }

/* ===== ABOUT ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 4rem; align-items: center; }
.about-image-wrapper { position: relative; }
.about-image {
  width: 100%; max-width: 380px; aspect-ratio: 1;
  border-radius: 24px; overflow: hidden; position: relative;
  border: 2px solid var(--glass-border);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.about-image img { width: 100%; height: 100%; object-fit: cover; }
.about-image-glow {
  position: absolute; inset: -2px; border-radius: 26px; z-index: -1;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2), var(--accent-3));
  opacity: 0.4; filter: blur(20px);
}
.about-details h3 { font-size: 1.8rem; margin-bottom: 1rem; }
.about-details p { color: var(--text-secondary); margin-bottom: 1.5rem; }
.about-info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.5rem; }
.about-info-item {
  padding: 1rem; border-radius: 12px;
  background: var(--glass); border: 1px solid var(--glass-border);
}
.about-info-item .label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.about-info-item .value { font-weight: 600; color: var(--accent-2); margin-top: 0.3rem; }

/* ===== SKILLS ===== */
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.skill-card {
  padding: 2rem; border-radius: 16px;
  background: var(--bg-card); border: 1px solid var(--glass-border);
  transition: all 0.4s ease; position: relative; overflow: hidden;
}
.skill-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  transform: scaleX(0); transform-origin: left; transition: transform 0.4s;
}
.skill-card:hover::before { transform: scaleX(1); }
.skill-card:hover { transform: translateY(-5px); border-color: var(--accent-1); box-shadow: 0 10px 40px rgba(108,99,255,0.15); }
.skill-card-icon {
  width: 50px; height: 50px; border-radius: 12px; display: flex;
  align-items: center; justify-content: center; font-size: 1.5rem;
  margin-bottom: 1.2rem;
}
.skill-card-icon i { color: var(--accent-1); }
.skill-card h3 { font-size: 1.2rem; margin-bottom: 0.8rem; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.skill-tag {
  padding: 0.3rem 0.8rem; border-radius: 8px; font-size: 0.78rem;
  background: rgba(108,99,255,0.1); color: var(--accent-2);
  border: 1px solid rgba(108,99,255,0.15); transition: 0.3s;
}
.skill-tag:hover { background: rgba(108,99,255,0.2); transform: scale(1.05); }

/* ===== EXPERIENCE ===== */
.timeline { position: relative; padding-left: 3rem; }
.timeline::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(180deg, var(--accent-1), var(--accent-2), transparent);
}
.timeline-item { position: relative; margin-bottom: 3rem; }
.timeline-dot {
  position: absolute; left: -3.55rem; top: 0.5rem; width: 14px; height: 14px;
  border-radius: 50%; background: var(--accent-1);
  box-shadow: 0 0 20px var(--glow); border: 3px solid var(--bg-primary);
}
.timeline-card {
  padding: 1.8rem; border-radius: 16px;
  background: var(--bg-card); border: 1px solid var(--glass-border);
  transition: all 0.3s;
}
.timeline-card:hover { border-color: var(--accent-1); transform: translateX(5px); }
.timeline-date {
  font-size: 0.8rem; color: var(--accent-2); font-weight: 600;
  text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.5rem;
}
.timeline-card h3 { font-size: 1.2rem; margin-bottom: 0.3rem; }
.timeline-card .company { color: var(--accent-1); font-weight: 500; margin-bottom: 0.8rem; }
.timeline-card p { color: var(--text-secondary); font-size: 0.95rem; }

/* ===== PROJECTS ===== */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 1.5rem; }
.project-card {
  border-radius: 16px; overflow: hidden;
  background: var(--bg-card); border: 1px solid var(--glass-border);
  transition: all 0.4s; position: relative; display: flex; flex-direction: column;
}
.project-card:hover { transform: translateY(-8px); border-color: var(--accent-1); box-shadow: 0 20px 50px rgba(108,99,255,0.15); }
.project-header {
  padding: 1.5rem 1.5rem 0; display: flex; justify-content: space-between; align-items: flex-start;
}
.project-icon { font-size: 2rem; color: var(--accent-2); }
.project-links { display: flex; gap: 0.5rem; }
.project-links a {
  width: 36px; height: 36px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: var(--glass); border: 1px solid var(--glass-border);
  color: var(--text-secondary); text-decoration: none; transition: 0.3s; font-size: 0.9rem;
}
.project-links a:hover { color: var(--accent-1); border-color: var(--accent-1); }
.project-body { padding: 1rem 1.5rem 1.5rem; flex: 1; display: flex; flex-direction: column; }
.project-body h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }
.project-body p { color: var(--text-secondary); font-size: 0.9rem; flex: 1; }
.project-tech { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1rem; }
.project-tech span {
  padding: 0.25rem 0.6rem; border-radius: 6px; font-size: 0.72rem;
  font-family: 'JetBrains Mono', monospace; font-weight: 500;
  background: rgba(0,212,255,0.08); color: var(--accent-2);
  border: 1px solid rgba(0,212,255,0.12);
}

/* ===== CERTIFICATIONS ===== */
.certs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.2rem; }
.cert-card {
  padding: 1.5rem; border-radius: 14px;
  background: var(--bg-card); border: 1px solid var(--glass-border);
  transition: all 0.3s; display: flex; gap: 1rem; align-items: flex-start;
}
.cert-card:hover { border-color: var(--accent-1); transform: translateY(-3px); }
.cert-icon {
  width: 44px; height: 44px; min-width: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; background: rgba(108,99,255,0.12);
}
.cert-icon i { color: var(--accent-1); }
.cert-info h4 { font-size: 0.95rem; margin-bottom: 0.2rem; }
.cert-info .cert-org { font-size: 0.82rem; color: var(--accent-2); }
.cert-info .cert-date { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.3rem; }

/* ===== CONTACT ===== */
.contact-section {
  background: linear-gradient(180deg, var(--bg-primary), var(--bg-secondary));
}
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.contact-info h3 { font-size: 1.8rem; margin-bottom: 1rem; }
.contact-info p { color: var(--text-secondary); margin-bottom: 2rem; }
.contact-links { display: flex; flex-direction: column; gap: 1rem; }
.contact-link {
  display: flex; align-items: center; gap: 1rem; padding: 1rem 1.5rem;
  border-radius: 12px; background: var(--glass); border: 1px solid var(--glass-border);
  text-decoration: none; color: var(--text-primary); transition: 0.3s;
}
.contact-link:hover { border-color: var(--accent-1); transform: translateX(5px); }
.contact-link-icon {
  width: 44px; height: 44px; border-radius: 10px; display: flex;
  align-items: center; justify-content: center; font-size: 1.2rem;
  background: rgba(108,99,255,0.12);
}
.contact-link span { font-weight: 500; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { position: relative; }
.form-group input, .form-group textarea {
  width: 100%; padding: 1rem 1.2rem; border-radius: 12px; border: 1px solid var(--glass-border);
  background: var(--glass); color: var(--text-primary); font-family: 'Inter', sans-serif;
  font-size: 0.95rem; transition: 0.3s; outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--accent-1); box-shadow: 0 0 20px rgba(108,99,255,0.1); }
.form-group textarea { min-height: 140px; resize: vertical; }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-muted); }

/* Form validation & status */
.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
  border-color: var(--accent-3);
  box-shadow: 0 0 15px rgba(255, 107, 157, 0.1);
}
.form-group input:valid:not(:placeholder-shown),
.form-group textarea:valid:not(:placeholder-shown) {
  border-color: #00ff88;
}
.form-status {
  margin-top: 0.5rem; padding: 0; border-radius: 10px;
  font-size: 0.9rem; text-align: center;
  max-height: 0; overflow: hidden; opacity: 0;
  transition: all 0.4s ease;
}
.form-status.success, .form-status.error {
  padding: 0.9rem 1.2rem;
  max-height: 80px; opacity: 1;
}
.form-status.success {
  background: rgba(0, 255, 136, 0.08); color: #00ff88;
  border: 1px solid rgba(0, 255, 136, 0.2);
}
.form-status.error {
  background: rgba(255, 107, 157, 0.08); color: var(--accent-3);
  border: 1px solid rgba(255, 107, 157, 0.2);
}
.form-status i { margin-right: 0.5rem; }
#contact-submit:disabled {
  opacity: 0.6; cursor: not-allowed;
  transform: none !important;
}

/* ===== FOOTER ===== */
.footer {
  padding: 2rem; text-align: center; border-top: 1px solid var(--glass-border);
}
.footer-socials { display: flex; gap: 1rem; justify-content: center; margin-bottom: 1rem; }
.footer-socials a {
  width: 44px; height: 44px; border-radius: 12px; display: flex;
  align-items: center; justify-content: center;
  background: var(--glass); border: 1px solid var(--glass-border);
  color: var(--text-secondary); text-decoration: none; transition: 0.3s; font-size: 1.1rem;
}
.footer-socials a:hover { color: var(--accent-1); border-color: var(--accent-1); transform: translateY(-3px); }
.footer p { color: var(--text-muted); font-size: 0.85rem; }
.footer .heart { color: var(--accent-3); }

/* ===== ANIMATIONS ===== */
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(-40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-left.active { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-right.active { opacity: 1; transform: translateX(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; text-align: center; }
  .about-image { margin: 0 auto; max-width: 280px; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 1.5rem; }
  .projects-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; position: fixed; top: 0; right: 0; width: 280px; height: 100vh; flex-direction: column; background: rgba(10,10,26,0.98); padding: 5rem 2rem; gap: 1.5rem; backdrop-filter: blur(20px); border-left: 1px solid var(--glass-border); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .hero-stats { flex-direction: column; gap: 1rem; }
  .about-info-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  section { padding: 4rem 1.2rem; }
}

/* ===== TYPING CURSOR ===== */
.typed-cursor { color: var(--accent-1); animation: blink 1s infinite; font-weight: 300; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ===== CERTIFICATE MODAL ===== */
.cert-card { cursor: pointer; }
.cert-modal {
  display: none; position: fixed; z-index: 2000; left: 0; top: 0;
  width: 100%; height: 100%; background-color: rgba(10, 10, 26, 0.95);
  backdrop-filter: blur(8px); justify-content: center; align-items: center;
  opacity: 0; transition: opacity 0.3s ease;
}
.cert-modal.show { display: flex; opacity: 1; }
.cert-modal-content {
  position: relative; width: 90%; max-width: 1000px; height: 85vh;
  background: var(--bg-secondary); border-radius: 12px;
  border: 1px solid var(--glass-border); box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  display: flex; flex-direction: column; overflow: hidden;
  transform: scale(0.95); transition: transform 0.3s ease;
}
.cert-modal.show .cert-modal-content { transform: scale(1); }
.cert-modal-header {
  padding: 1rem 1.5rem; display: flex; justify-content: space-between;
  align-items: center; border-bottom: 1px solid var(--glass-border);
  background: var(--bg-primary);
}
.cert-modal-title { font-size: 1.2rem; font-weight: 600; color: var(--accent-2); }
.cert-close {
  color: var(--text-muted); font-size: 1.8rem; font-weight: bold;
  cursor: pointer; transition: color 0.3s; line-height: 1;
}
.cert-close:hover { color: var(--accent-3); }
.cert-modal-body {
  flex: 1; position: relative; display: flex; justify-content: center; align-items: center;
  padding: 0; background: #222; /* Dark background for viewer */
  overflow: hidden;
}
.cert-modal-body iframe, .cert-modal-body img {
  width: 100%; height: 100%; border: none; object-fit: contain; background: white;
}
.cert-nav {
  display: none; padding: 1rem 1.5rem; background: var(--bg-primary);
  justify-content: space-between; align-items: center;
  border-top: 1px solid var(--glass-border);
}
.cert-nav.active { display: flex; }