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

:root {
  --bg: #08080f;
  --bg2: #0f0f1a;
  --bg3: #13131f;
  --border: rgba(255,255,255,0.07);
  --text: #e8e8f0;
  --text-muted: #7a7a9a;
  --blue: #007AFF;
  --indigo: #5856D6;
  --gradient: linear-gradient(135deg, #007AFF, #5856D6);
  --gradient-glow: linear-gradient(135deg, rgba(0,122,255,0.2), rgba(88,86,214,0.2));
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

.mono { font-family: 'JetBrains Mono', monospace; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ===== NAV ===== */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  transition: background var(--transition), backdrop-filter var(--transition);
}

#navbar.scrolled {
  background: rgba(8,8,15,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.nav-logo .dot { color: var(--blue); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--text); }

.nav-cta {
  background: var(--gradient) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  font-weight: 600 !important;
}

.lang-toggle {
  background: none;
  border: 1.5px solid rgba(255,255,255,0.18);
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
}
.lang-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: rgba(8,8,15,0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 99;
  padding: 24px;
  transform: translateY(-10px);
  opacity: 0;
  transition: var(--transition);
}

.mobile-menu.open {
  display: block;
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu ul { list-style: none; }

.mobile-menu a {
  display: block;
  padding: 14px 0;
  color: var(--text);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 100px 24px 60px;
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  gap: 48px;
}

#particleCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  flex: 1;
}

.hero-greeting {
  font-size: 1rem;
  color: var(--blue);
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 12px;
  opacity: 0.9;
}

.hero-name {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.hero-sub {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  padding: 14px 32px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 0 30px rgba(0,122,255,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(0,122,255,0.4);
}

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
  padding: 14px 32px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: border-color var(--transition), background var(--transition);
}

.btn-ghost:hover {
  border-color: rgba(0,122,255,0.5);
  background: rgba(0,122,255,0.05);
}

.hero-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.badge {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-family: 'JetBrains Mono', monospace;
}

/* AVATAR */
.hero-image {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.avatar-ring {
  position: relative;
  width: 280px;
  height: 280px;
}

.avatar-ring::before {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--gradient);
  animation: spin 8s linear infinite;
  z-index: -1;
}

.avatar-ring::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--bg);
  z-index: -1;
}

.avatar {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  display: block;
  position: relative;
  z-index: 1;
  padding: 4px;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* SCROLL INDICATOR */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  animation: bounce 2s infinite;
  margin: 0 auto;
}

@keyframes bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(6px); }
}

/* ===== SECTIONS ===== */
.section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

.section-alt { background: var(--bg2); }

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-sub {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 48px;
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-top: 48px;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 1rem;
  line-height: 1.8;
}

.about-text strong { color: var(--text); }

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition);
}

.stat-card:hover {
  border-color: rgba(0,122,255,0.3);
  transform: translateY(-2px);
}

.stat-number {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== SKILLS ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.skill-group {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color var(--transition);
}

.skill-group:hover { border-color: rgba(0,122,255,0.25); }

.skill-group-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--blue);
  font-weight: 600;
  margin-bottom: 16px;
  font-family: 'JetBrains Mono', monospace;
}

.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }

.skill-tag {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 5px 12px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: var(--transition);
}

.skill-tag.primary {
  background: rgba(0,122,255,0.1);
  border-color: rgba(0,122,255,0.25);
  color: #60a5fa;
}

.skill-tag:hover {
  border-color: rgba(0,122,255,0.4);
  color: var(--text);
}

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.project-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.project-card:hover::before { transform: scaleX(1); }

.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,122,255,0.25);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.project-icon { font-size: 2rem; line-height: 1; }

.project-links { display: flex; gap: 10px; }

.project-link {
  color: var(--text-muted);
  transition: color var(--transition);
  display: flex;
  align-items: center;
}

.project-link:hover { color: var(--blue); }

.component-badge {
  display: inline-block;
  background: rgba(88,86,214,0.15);
  border: 1px solid rgba(88,86,214,0.3);
  color: #a5b4fc;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.appstore-icon {
  width: 48px;
  height: 48px;
  font-size: 0;
}

.appstore-icon img {
  border-radius: 22%;
  width: 48px;
  height: 48px;
  display: block;
  object-fit: cover;
}

.appstore-badge {
  display: inline-block;
  background: rgba(52,199,89,0.15);
  border: 1px solid rgba(52,199,89,0.3);
  color: #4ade80;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.project-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.project-desc {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tags span {
  background: rgba(0,122,255,0.08);
  border: 1px solid rgba(0,122,255,0.15);
  color: #93c5fd;
  padding: 4px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
}

/* ===== TIMELINE ===== */
.timeline {
  position: relative;
  margin-top: 48px;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--blue), var(--indigo), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-dot {
  position: absolute;
  left: -36px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gradient);
  box-shadow: 0 0 12px rgba(0,122,255,0.5);
}

.timeline-content {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--transition);
}

.timeline-content:hover { border-color: rgba(0,122,255,0.25); }

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.timeline-role {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-company {
  color: var(--blue);
  font-size: 0.9rem;
  font-weight: 500;
}

.timeline-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  white-space: nowrap;
  flex-shrink: 0;
}

.timeline-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.75;
  margin-bottom: 16px;
}

.timeline-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.timeline-tags span {
  background: rgba(0,122,255,0.08);
  border: 1px solid rgba(0,122,255,0.15);
  color: #93c5fd;
  padding: 4px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
}

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.contact-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,122,255,0.35);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--gradient-glow);
  border: 1px solid rgba(0,122,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
}

.contact-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 600;
}

.contact-value {
  font-size: 0.88rem;
  color: var(--text);
  font-weight: 500;
}

/* ===== FOOTER ===== */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  position: relative;
  z-index: 1;
  background: var(--bg);
}

/* ===== REVEAL ANIMATIONS ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  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-delay { transition-delay: 0.15s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }

  #hero {
    flex-direction: column-reverse;
    text-align: center;
    padding-top: 100px;
    gap: 32px;
  }

  .hero-actions { justify-content: center; }
  .hero-badges { justify-content: center; }

  .avatar-ring, .avatar { width: 200px; height: 200px; }

  .about-grid { grid-template-columns: 1fr; }

  .timeline { padding-left: 20px; }
  .timeline-dot { left: -24px; }

  .timeline-header { flex-direction: column; }
  .timeline-date { margin-top: 4px; }
}

@media (max-width: 480px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
}