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

:root {
  /* Dark mode - Netflix black, red fire */
  --bg:       #000000;
  --bg2:      #141414;
  --surface:  #1F1F1F;
  --surface2: #2A2A2A;
  --border:   rgba(255,255,255,0.08);
  --border2:  rgba(229,9,20,0.25);
  --primary:  #E50914;
  --primary2: #FF4C4C;
  --accent:   #B20710;
  --accent2:  #FF8080;
  --text:     #FFFFFF;
  --text2:    #B3B3B3;
  --text3:    #737373;
  --btn-text: #FFFFFF;
  --glow:     rgba(229,9,20,0.30);
  --gradient: linear-gradient(135deg, #E50914, #B20710);
  --radius:   16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
}

::selection { background: rgba(229,9,20,0.3); color: var(--text); }

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* =============================================
   NOISE OVERLAY
   ============================================= */
.noise {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' 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='1'/%3E%3C/svg%3E");
  opacity: 0.025;
}

/* =============================================
   CUSTOM CURSOR
   ============================================= */
.cursor {
  width: 8px; height: 8px;
  background: var(--primary);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
}
.cursor-follower {
  width: 32px; height: 32px;
  border: 1.5px solid rgba(229,9,20,0.4);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.12s ease, width 0.3s, height 0.3s, border-color 0.3s;
}
body:has(a:hover) .cursor, body:has(button:hover) .cursor { width: 14px; height: 14px; }
body:has(a:hover) .cursor-follower, body:has(button:hover) .cursor-follower { width: 48px; height: 48px; border-color: rgba(229,9,20,0.7); }

@media (pointer: coarse) {
  .cursor, .cursor-follower { display: none; }
  body { cursor: auto; }
}

/* =============================================
   CONTAINER & UTILITIES
   ============================================= */
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
  font-family: 'JetBrains Mono', monospace;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

/* =============================================
   REVEAL ANIMATIONS
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }

/* =============================================
   NAVIGATION
   ============================================= */
#nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 32px;
  transition: var(--transition);
}
#nav.scrolled {
  background: rgba(0,0,0,0.88);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 72px;
  gap: 40px;
}
.nav-logo {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--text);
  flex-shrink: 0;
}
.nav-logo span { color: var(--primary); }
.nav-links {
  display: flex;
  gap: 32px;
  margin-left: auto;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text2);
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1.5px;
  background: var(--primary);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  margin-left: 16px;
  padding: 9px 20px;
  background: var(--primary);
  color: #fff;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
  flex-shrink: 0;
}
.nav-cta:hover { background: var(--accent); transform: translateY(-1px); }

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 4px;
  flex-shrink: 0;
}
.lang-btn {
  padding: 5px 12px;
  border-radius: 100px;
  border: none;
  background: transparent;
  color: var(--text3);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: none;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}
.lang-btn:hover { color: var(--text2); }
.lang-btn.active { background: var(--primary); color: #fff; }

/* Mobile lang switcher */
.mobile-lang {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 4px;
}
.mobile-lang .lang-btn { padding: 8px 20px; font-size: 13px; }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: none;
  padding: 4px;
  margin-left: auto;
}
.nav-burger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.97);
  backdrop-filter: blur(20px);
  z-index: 999;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.mobile-menu.open { display: flex; }
.mobile-menu ul { text-align: center; }
.mobile-menu li { margin: 24px 0; }
.mobile-link {
  font-size: 36px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
  transition: color var(--transition);
}
.mobile-link:hover { color: var(--primary); }

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-burger { display: flex; }
}

/* =============================================
   HERO
   ============================================= */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 120px 32px 80px;
}

.hero-bg {
  position: absolute; inset: 0;
  pointer-events: none;
}

#particleCanvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  opacity: 0.6;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}
.orb-1 { width: 600px; height: 600px; background: rgba(229,9,20,0.14); top: -200px; right: -100px; animation: orbFloat1 12s ease-in-out infinite; }
.orb-2 { width: 400px; height: 400px; background: rgba(178,7,16,0.09); bottom: -100px; left: -100px; animation: orbFloat2 15s ease-in-out infinite; }
.orb-3 { width: 300px; height: 300px; background: rgba(255,76,76,0.07); top: 50%; left: 40%; animation: orbFloat3 10s ease-in-out infinite; }

@keyframes orbFloat1 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(-40px,40px) scale(1.1); } }
@keyframes orbFloat2 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(30px,-30px) scale(0.9); } }
@keyframes orbFloat3 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-20px,20px); } }

.hero-content {
  max-width: 900px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(229,9,20,0.1);
  border: 1px solid rgba(229,9,20,0.28);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary2);
  margin-bottom: 36px;
}
.badge-dot {
  width: 7px; height: 7px;
  background: #4eff91;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
  box-shadow: 0 0 8px #4eff91;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero-title {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 28px;
}
.hero-title .line { display: block; }

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text2);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--gradient);
  color: var(--btn-text);
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #FF4C4C, #E50914);
  opacity: 0;
  transition: opacity var(--transition);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(229,9,20,0.38); }
.btn-primary:hover::before { opacity: 1; }
.btn-primary > * { position: relative; z-index: 1; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border2);
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }

.btn-large { padding: 16px 32px; font-size: 16px; }
.btn-large svg { width: 18px; height: 18px; }

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.stat { text-align: center; }
.stat-num {
  display: block;
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--text), #E50914);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 12px; color: var(--text3); font-weight: 500; margin-top: 2px; display: block; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

.hero-scroll {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text3);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-family: 'JetBrains Mono', monospace;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  animation: scrollAnim 2s ease-in-out infinite;
}
@keyframes scrollAnim { 0%,100% { transform: scaleY(1); opacity: 1; } 50% { transform: scaleY(0.6); opacity: 0.4; } }

/* =============================================
   SECTIONS SHARED
   ============================================= */
section { padding: 120px 0; position: relative; }
#about, #experience { background: var(--bg); }
#skills, #projects { background: var(--bg2); }

/* =============================================
   ABOUT
   ============================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about-text {
  color: var(--text2);
  margin-bottom: 20px;
  font-size: 1.05rem;
  line-height: 1.75;
}
.about-text strong { color: var(--text); font-weight: 600; }

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
}
.tag {
  padding: 6px 14px;
  background: rgba(229,9,20,0.08);
  border: 1px solid rgba(229,9,20,0.22);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  color: var(--primary2);
  font-family: 'JetBrains Mono', monospace;
  transition: var(--transition);
}
.tag:hover { background: rgba(229,9,20,0.18); border-color: var(--primary); color: var(--primary2); }

.about-card {
  position: sticky;
  top: 100px;
}
.about-card-inner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  overflow: hidden;
}
.about-card-inner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.about-avatar {
  width: 80px; height: 80px;
  position: relative;
  margin: 0 auto 28px;
}
.avatar-ring {
  position: absolute; inset: -4px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  animation: spin 8s linear infinite;
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), black calc(100% - 2px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 2px), black calc(100% - 2px));
}
@keyframes spin { to { transform: rotate(360deg); } }
.avatar-initials {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--surface2), var(--surface));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 1;
}

.about-info-list { margin-bottom: 28px; }
.info-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  color: var(--text2);
}
.info-item:last-child { border-bottom: none; }
.info-icon {
  flex-shrink: 0;
  width: 18px; height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.info-icon svg { width: 16px; height: 16px; }

.cert-row {
  display: flex;
  gap: 12px;
}
.cert-badge {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(229,9,20,0.06);
  border: 1px solid rgba(229,9,20,0.18);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text2);
}
.cert-icon {
  width: 24px; height: 24px;
  background: var(--gradient);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-card { position: static; }
}

/* =============================================
   SKILLS
   ============================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.skill-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(229,9,20,0.06), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.skill-card:hover { border-color: rgba(229,9,20,0.38); transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.4); }
.skill-card:hover::before { opacity: 1; }

.skill-card-icon {
  width: 44px; height: 44px;
  background: rgba(229,9,20,0.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: var(--transition);
}
.skill-card-icon svg { width: 20px; height: 20px; color: var(--primary); }
.skill-card:hover .skill-card-icon { background: rgba(229,9,20,0.22); }

.skill-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 10px; }
.skill-card p { font-size: 14px; color: var(--text2); line-height: 1.65; margin-bottom: 20px; }

.skill-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.skill-tech span {
  font-size: 11px;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
  padding: 3px 10px;
  background: rgba(156,163,175,0.08);
  border: 1px solid rgba(156,163,175,0.16);
  border-radius: 100px;
  color: var(--text2);
}

@media (max-width: 1024px) { .skills-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .skills-grid { grid-template-columns: 1fr; } }

/* =============================================
   EXPERIENCE / TIMELINE
   ============================================= */
.timeline {
  position: relative;
  margin-top: 64px;
  padding-left: 32px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--primary), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 48px;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -37px; top: 8px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 12px var(--primary);
  border: 2px solid var(--bg);
}

.timeline-date {
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text3);
  font-weight: 500;
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}

.timeline-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  transition: var(--transition);
}
.timeline-card:hover { border-color: var(--border2); transform: translateX(4px); }

.timeline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 16px;
}
.timeline-header h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.timeline-company { font-size: 13px; color: var(--primary); font-weight: 500; }

.timeline-badge {
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}
.timeline-badge.current { background: rgba(78,255,145,0.12); color: #4eff91; border: 1px solid rgba(78,255,145,0.25); }
.timeline-badge.remote { background: rgba(96,165,250,0.1); color: #60A5FA; border: 1px solid rgba(96,165,250,0.22); }
.timeline-badge.volunteer { background: rgba(255,107,157,0.1); color: var(--accent2); border: 1px solid rgba(255,107,157,0.2); }

.timeline-list { padding-left: 16px; margin-bottom: 20px; }
.timeline-list li {
  color: var(--text2);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 8px;
  position: relative;
  list-style: disc;
}
.timeline-list li::marker { color: var(--primary); }

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.timeline-tags span {
  font-size: 11px;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
  padding: 3px 10px;
  background: rgba(229,9,20,0.08);
  border: 1px solid rgba(229,9,20,0.18);
  border-radius: 100px;
  color: var(--primary2);
}

/* =============================================
   PROJECTS
   ============================================= */
.section-sub {
  color: var(--text2);
  font-size: 1rem;
  max-width: 500px;
  margin-bottom: 48px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.project-card:hover { border-color: rgba(229,9,20,0.38); transform: translateY(-6px); box-shadow: 0 24px 48px rgba(0,0,0,0.5); }

.project-card.featured {
  grid-column: span 2;
  background: linear-gradient(135deg, rgba(229,9,20,0.07), rgba(178,7,16,0.04));
  border-color: rgba(229,9,20,0.22);
}

.project-glow {
  position: absolute; top: -60px; right: -60px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(229,9,20,0.18), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.project-type {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary2);
  font-family: 'JetBrains Mono', monospace;
}
.project-status {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
  background: rgba(229,9,20,0.12);
  color: var(--primary2);
  border: 1px solid rgba(229,9,20,0.28);
}
.project-status.status-live {
  background: rgba(78,255,145,0.1);
  color: #4eff91;
  border-color: rgba(78,255,145,0.2);
}
.project-status.status-research {
  background: rgba(255,195,0,0.1);
  color: #ffc300;
  border-color: rgba(255,195,0,0.2);
}

.project-title { font-size: 1.2rem; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.02em; }
.project-desc { font-size: 14px; color: var(--text2); line-height: 1.7; margin-bottom: 24px; flex: 1; }

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
}
.project-tech span {
  font-size: 11px;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
  padding: 3px 10px;
  background: rgba(156,163,175,0.08);
  border: 1px solid rgba(156,163,175,0.15);
  border-radius: 100px;
  color: var(--text2);
}

.project-footer { margin-top: auto; }
.project-impact {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text3);
  font-weight: 500;
}
.impact-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #4eff91;
  box-shadow: 0 0 8px #4eff91;
}

@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .project-card.featured { grid-column: span 1; }
}
@media (max-width: 640px) { .projects-grid { grid-template-columns: 1fr; } }

/* =============================================
   CONTACT
   ============================================= */
#contact {
  background: var(--bg);
  padding: 120px 0;
}
.contact-wrapper {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  padding: 80px 48px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.contact-wrapper::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #E50914, #B20710, transparent);
}
.contact-orb {
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(229,9,20,0.10), transparent 70%);
  border-radius: 50%;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.contact-wrapper .section-label { margin-bottom: 20px; }
.contact-wrapper .section-title { font-size: clamp(1.8rem, 3.5vw, 2.5rem); }

.contact-sub {
  color: var(--text2);
  margin-bottom: 40px;
  font-size: 1rem;
  line-height: 1.7;
  position: relative;
}

.contact-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
  align-items: center;
  position: relative;
}

.contact-social {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 28px;
  position: relative;
  flex-wrap: wrap;
}

.btn-social {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-social svg { width: 18px; height: 18px; }

.btn-whatsapp {
  background: rgba(37,211,102,0.12);
  border: 1.5px solid rgba(37,211,102,0.28);
  color: #25D366;
}
.btn-whatsapp:hover {
  background: rgba(37,211,102,0.22);
  border-color: rgba(37,211,102,0.5);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37,211,102,0.2);
}

.btn-linkedin {
  background: rgba(0,119,181,0.12);
  border: 1.5px solid rgba(0,119,181,0.28);
  color: #0077B5;
}
.btn-linkedin:hover {
  background: rgba(0,119,181,0.22);
  border-color: rgba(0,119,181,0.5);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,119,181,0.2);
}

.contact-location {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text3);
  position: relative;
}
.contact-location svg { width: 14px; height: 14px; }

@media (max-width: 600px) {
  .contact-wrapper { padding: 48px 24px; }
  .contact-actions { flex-direction: column; }
  .contact-social { flex-direction: column; align-items: center; }
}

/* =============================================
   FOOTER
   ============================================= */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 32px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-logo {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text2);
}
.footer-copy { font-size: 13px; color: var(--text3); }

/* =============================================
   RESPONSIVE
   ============================================= */

/* Large tablet — compact nav */
@media (max-width: 1100px) {
  .nav-inner { gap: 20px; }
  .nav-links { gap: 20px; }
  .nav-cta { padding: 8px 16px; font-size: 12px; }
}

/* Tablet */
@media (max-width: 900px) {
  .nav-links { gap: 16px; }
  .hero-title { font-size: clamp(2.4rem, 6vw, 4rem); }
}

/* Mobile */
@media (max-width: 768px) {
  section { padding: 72px 0; }
  .container { padding: 0 20px; }
  #hero { padding: 110px 20px 72px; }

  /* Nav */
  .nav-inner { gap: 12px; }

  /* Hero orbs — smaller so they don't overflow */
  .orb-1 { width: 320px; height: 320px; top: -120px; right: -80px; }
  .orb-2 { width: 240px; height: 240px; bottom: -60px; left: -80px; }
  .orb-3 { width: 180px; height: 180px; }

  /* Hero stats */
  .hero-stats { gap: 16px; }
  .stat-num { font-size: 2rem; }
  .stat-divider { height: 32px; }

  /* About card */
  .about-card-inner { padding: 24px; }
  .cert-row { flex-direction: column; }

  /* Timeline */
  .timeline { padding-left: 24px; }
  .timeline-card { padding: 20px; }
  .timeline-header { flex-direction: column; align-items: flex-start; }
  .timeline-dot { left: -32px; }

  /* Contact — full-width CTA buttons */
  .contact-wrapper { padding: 48px 24px; }
  .contact-actions .btn-primary,
  .contact-actions .btn-ghost { width: 100%; justify-content: center; }
  .contact-social { flex-direction: column; align-items: center; }
  .btn-social { width: 100%; max-width: 280px; justify-content: center; }

  /* Footer */
  .footer-inner { justify-content: center; text-align: center; }
  footer { padding: 24px 20px; }
}

/* Small mobile */
@media (max-width: 480px) {
  section { padding: 56px 0; }
  .container { padding: 0 16px; }
  #hero { padding: 100px 16px 64px; }

  /* Hero */
  .hero-title { font-size: 2.2rem; letter-spacing: -0.03em; }
  .hero-badge { font-size: 12px; padding: 6px 12px; }
  .hero-sub { font-size: 0.95rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn-primary,
  .hero-actions .btn-ghost { justify-content: center; }
  .hero-stats { gap: 12px; }
  .stat-num { font-size: 1.8rem; }

  /* Nav */
  .lang-switcher { display: none; }
  .theme-btn { margin-left: auto; }

  /* Cards */
  .skill-card { padding: 20px; }
  .project-card { padding: 20px; }
  .about-card-inner { padding: 20px; }

  /* Section titles */
  .section-title { font-size: 1.8rem; }

  /* Timeline */
  .timeline { padding-left: 20px; }
  .timeline-card { padding: 16px; }
  .timeline-dot { left: -27px; width: 8px; height: 8px; }
  .timeline-tags { gap: 6px; }
}

/* Very small phones (≤360px) */
@media (max-width: 360px) {
  .hero-title { font-size: 1.9rem; }
  .hero-stats { gap: 8px; }
  .stat-num { font-size: 1.6rem; }
  .stat-divider { height: 24px; }
  .stat-label { font-size: 10px; }
  .btn-large { padding: 13px 20px; font-size: 14px; }
  .contact-wrapper { padding: 32px 16px; }
  .nav-logo { font-size: 18px; }
}

/* =============================================
   THEME TOGGLE BUTTON
   ============================================= */
.theme-btn {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1.5px solid var(--border2);
  background: rgba(255,255,255,0.05);
  color: var(--text2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: none;
  flex-shrink: 0;
  transition: var(--transition);
  position: relative;
}
.theme-btn:hover { border-color: var(--primary); color: var(--primary); background: rgba(229,9,20,0.12); transform: rotate(20deg); }
.theme-btn svg { width: 17px; height: 17px; transition: var(--transition); }
/* Dark mode shows sun icon (click → go light) */
.icon-sun  { display: block; }
.icon-moon { display: none;  }
[data-theme="light"] .icon-sun  { display: none;  }
[data-theme="light"] .icon-moon { display: block; }

/* =============================================
   LIGHT THEME - CSS VARIABLES
   ============================================= */
[data-theme="light"] {
  /* Backgrounds - comfortable gray, not pure white */
  --bg:       #F5F5F5;   /* main page bg - light neutral gray    */
  --bg2:      #EBEBEB;   /* section alt - slightly darker gray   */
  --surface:  #FFFFFF;   /* cards float white above gray bg      */
  --surface2: #F5F5F5;
  --border:   #DCDCDC;   /* visible on gray                      */
  --border2:  rgba(229,9,20,0.25);
  /* Red - same fire, controlled contrast */
  --primary:  #E50914;
  --primary2: #B20710;   /* darker red - readable on gray bg     */
  --accent:   #FF4C4C;
  --accent2:  #FFB3B3;
  --text:     #111111;   /* near-black for max readability       */
  --text2:    #444444;   /* dark gray                            */
  --text3:    #6B7280;
  --btn-text: #FFFFFF;
  --glow:     rgba(229,9,20,0.18);
  --gradient: linear-gradient(135deg, #E50914, #B20710);
}

/* =============================================
   LIGHT THEME - COMPONENT OVERRIDES
   ============================================= */

[data-theme="light"] ::selection { background: rgba(229,9,20,0.2); color: #111111; }
[data-theme="light"] .noise { opacity: 0.018; }

/* Nav - translucent gray on scroll */
[data-theme="light"] #nav.scrolled {
  background: rgba(245,245,245,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid #DCDCDC;
}
[data-theme="light"] .mobile-menu { background: rgba(245,245,245,0.98); }

/* Hero orbs - warmer on gray */
[data-theme="light"] .orb-1 { background: rgba(229,9,20,0.10); }
[data-theme="light"] .orb-2 { background: rgba(178,7,16,0.07); }
[data-theme="light"] .orb-3 { background: rgba(255,76,76,0.06); }

/* Cards - white floating on gray bg */
[data-theme="light"] .skill-card,
[data-theme="light"] .project-card,
[data-theme="light"] .about-card-inner,
[data-theme="light"] .timeline-card,
[data-theme="light"] .contact-wrapper {
  box-shadow: 0 1px 4px rgba(0,0,0,0.07), 0 6px 20px rgba(0,0,0,0.05);
}
[data-theme="light"] .skill-card:hover   { box-shadow: 0 8px 32px rgba(178,7,16,0.15), 0 2px 8px rgba(0,0,0,0.07); }
[data-theme="light"] .project-card:hover { box-shadow: 0 12px 40px rgba(178,7,16,0.13), 0 2px 8px rgba(0,0,0,0.07); }

/* Timeline */
[data-theme="light"] .timeline-dot { border-color: var(--bg); }
[data-theme="light"] .timeline-date { color: var(--text3); }

/* Featured project */
[data-theme="light"] .project-card.featured {
  background: linear-gradient(135deg, rgba(229,9,20,0.06), rgba(178,7,16,0.03));
  border-color: rgba(229,9,20,0.20);
}

/* Buttons */
[data-theme="light"] .btn-ghost {
  border-color: #DCDCDC;
  color: var(--text2);
}
[data-theme="light"] .btn-ghost:hover { border-color: #E50914; color: #B20710; }

/* Stat numbers */
[data-theme="light"] .stat-num {
  background: linear-gradient(135deg, #111111, #E50914);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Lang + theme controls */
[data-theme="light"] .lang-switcher,
[data-theme="light"] .mobile-lang { background: #EBEBEB; border-color: #DCDCDC; }
[data-theme="light"] .lang-btn { color: var(--text3); }
[data-theme="light"] .lang-btn.active { background: var(--gradient); color: #fff; }
[data-theme="light"] .theme-btn { background: #EBEBEB; border-color: #DCDCDC; color: var(--text2); }

/* Red text elements - use darker shade for contrast on gray */
[data-theme="light"] .section-label,
[data-theme="light"] .nav-logo span,
[data-theme="light"] .info-icon,
[data-theme="light"] .timeline-company,
[data-theme="light"] .skill-card-icon svg { color: #B20710; }

/* Tags & pills */
[data-theme="light"] .skill-tech span,
[data-theme="light"] .project-tech span {
  background: #EBEBEB;
  border-color: #DCDCDC;
  color: var(--text2);
}
[data-theme="light"] .timeline-tags span {
  background: rgba(178,7,16,0.07);
  border-color: rgba(178,7,16,0.18);
  color: #B20710;
}
[data-theme="light"] .tag {
  background: rgba(178,7,16,0.07);
  border-color: rgba(178,7,16,0.20);
  color: #B20710;
}
[data-theme="light"] .cert-badge { background: #FFF5F5; border-color: rgba(178,7,16,0.18); }

/* Project status badges */
[data-theme="light"] .project-status {
  background: rgba(178,7,16,0.08);
  border-color: rgba(178,7,16,0.22);
  color: #B20710;
}
[data-theme="light"] .project-status.status-live {
  background: rgba(22,163,74,0.1);
  border-color: rgba(22,163,74,0.25);
  color: #16A34A;
}
[data-theme="light"] .project-status.status-research {
  background: rgba(161,121,0,0.1);
  border-color: rgba(161,121,0,0.25);
  color: #A17800;
}

/* Hero badge */
[data-theme="light"] .hero-badge {
  background: rgba(178,7,16,0.07);
  border-color: rgba(178,7,16,0.22);
  color: #B20710;
}

/* Skill card icon bg */
[data-theme="light"] .skill-card-icon { background: rgba(178,7,16,0.08); }
[data-theme="light"] .skill-card:hover .skill-card-icon { background: rgba(178,7,16,0.15); }

/* About card top border */
[data-theme="light"] .about-card-inner::before {
  background: linear-gradient(90deg, transparent, #E50914, #B20710, transparent);
}

/* Contact top border */
[data-theme="light"] .contact-wrapper::before {
  background: linear-gradient(90deg, transparent, #E50914, #B20710, transparent);
}

/* Social buttons light mode */
[data-theme="light"] .btn-whatsapp { background: rgba(37,211,102,0.08); color: #1a9e4d; border-color: rgba(37,211,102,0.22); }
[data-theme="light"] .btn-linkedin { background: rgba(0,119,181,0.08); color: #005a8e; border-color: rgba(0,119,181,0.22); }

/* Sections - bg vars handle it, force them explicitly here */
[data-theme="light"] #hero,
[data-theme="light"] #about,
[data-theme="light"] #experience { background: var(--bg); }
[data-theme="light"] #skills,
[data-theme="light"] #projects,
[data-theme="light"] #contact    { background: var(--bg2); }
[data-theme="light"] footer  { background: var(--bg); border-top-color: #DCDCDC; }
[data-theme="light"] .footer-logo { color: var(--text2); }

/* Scroll indicator */
[data-theme="light"] .hero-scroll { color: var(--text3); }
[data-theme="light"] .scroll-line { background: linear-gradient(to bottom, #B20710, transparent); }

/* Smooth color transition on theme switch */
*, *::before, *::after {
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.15s ease, box-shadow 0.3s ease;
}