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

:root {
  --bg:          #0a0a0f;
  --bg-alt:      #0f0f18;
  --surface:     #13131f;
  --surface-2:   #1a1a2e;
  --border:      rgba(255,255,255,0.07);
  --border-glow: rgba(99,102,241,0.25);
  --accent:      #6366f1;
  --accent-2:    #8b5cf6;
  --accent-glow: rgba(99,102,241,0.15);
  --text:        #f0f0f8;
  --text-muted:  #8888aa;
  --text-dim:    #555570;
  --green:       #10b981;
  --radius:      12px;
  --radius-lg:   18px;
}

html { scroll-behavior: smooth; }

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

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

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background 0.3s, backdrop-filter 0.3s;
}

.nav.scrolled {
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--accent);
  letter-spacing: 2px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: color 0.2s;
}

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

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 100px 0 60px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 30%, rgba(99,102,241,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 20% 80%, rgba(139,92,246,0.06) 0%, transparent 60%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  color: var(--green);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.3); }
}

.hero-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(42px, 6vw, 68px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -1.5px;
  margin-bottom: 10px;
  background: linear-gradient(135deg, #ffffff 0%, #c4c4e0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: 18px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 0.3px;
}

.hero-summary {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 500px;
  margin-bottom: 24px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 100px;
}

.hero-links { display: flex; gap: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 4px 20px rgba(99,102,241,0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(99,102,241,0.5);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--surface-2);
  border-color: var(--border-glow);
}

/* Hero Visual */
.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.avatar-ring {
  width: 180px; height: 180px;
  border-radius: 50%;
  padding: 3px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2), transparent);
  animation: spin-ring 8s linear infinite;
}

@keyframes spin-ring {
  to { transform: rotate(360deg); }
}

.avatar {
  width: 100%; height: 100%;
  border-radius: 50%;
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 42px;
  font-weight: 700;
  color: var(--accent);
  animation: spin-ring 8s linear infinite reverse;
  overflow: hidden;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  transform: scale(1.3);
}

.stat-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: border-color 0.2s, transform 0.2s;
}

.stat-card:hover {
  border-color: var(--border-glow);
  transform: translateX(4px);
}

.stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 26px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  min-width: 80px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding: 96px 0;
}

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

.section-header {
  margin-bottom: 56px;
}

.section-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--text);
}

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 20px;
  bottom: 20px;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-2), transparent);
  opacity: 0.3;
}

.timeline-item {
  position: relative;
  padding-left: 48px;
  padding-bottom: 48px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-marker {
  position: absolute;
  left: 4px;
  top: 20px;
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: var(--bg);
  transition: background 0.2s;
  z-index: 1;
}

.timeline-item.featured .timeline-marker {
  background: var(--accent);
  box-shadow: 0 0 16px rgba(99,102,241,0.5);
}

.timeline-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 28px 24px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.timeline-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(99,102,241,0.08);
}

.timeline-item.featured .timeline-card {
  border-color: rgba(99,102,241,0.2);
  background: linear-gradient(135deg, rgba(99,102,241,0.04), var(--surface));
}

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

.card-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 19px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.company {
  color: var(--accent);
  font-weight: 600;
}

.location {
  color: var(--text-muted);
}

.sep {
  color: var(--text-dim);
}

.card-date {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 100px;
}

.card-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.card-bullets li {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  padding-left: 20px;
  position: relative;
}

.card-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 11px;
  top: 3px;
}

.card-bullets strong {
  color: var(--text);
  font-weight: 600;
}

.card-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ============================================================
   CHIPS
   ============================================================ */
.chip {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  letter-spacing: 0.3px;
}

.chip-accent {
  background: var(--accent-glow);
  border-color: rgba(99,102,241,0.3);
  color: #a5b4fc;
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.projects-solo {
  max-width: 680px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.project-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(99,102,241,0.1);
}

.project-featured {
  border-color: rgba(99,102,241,0.2);
  background: linear-gradient(135deg, rgba(99,102,241,0.05), var(--surface));
}

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

.project-icon {
  width: 44px; height: 44px;
  background: var(--accent-glow);
  border: 1px solid rgba(99,102,241,0.3);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.project-icon svg {
  width: 20px; height: 20px;
}

.project-status {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.project-status.active {
  background: rgba(16,185,129,0.1);
  border-color: rgba(16,185,129,0.3);
  color: var(--green);
}

.project-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

.project-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.project-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.project-bullets li {
  font-size: 13px;
  color: var(--text-muted);
  padding-left: 18px;
  position: relative;
  line-height: 1.6;
}

.project-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 10px;
  top: 3px;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}

.skill-group:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.skill-group-icon {
  width: 44px; height: 44px;
  background: var(--accent-glow);
  border: 1px solid rgba(99,102,241,0.25);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 16px;
}

.skill-group-icon svg {
  width: 20px; height: 20px;
}

.skill-group-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}

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

.skill-tag {
  font-size: 12px;
  font-weight: 500;
  padding: 5px 11px;
  border-radius: 100px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: border-color 0.15s, color 0.15s;
  cursor: default;
}

.skill-tag:hover {
  border-color: var(--border-glow);
  color: var(--text);
}

/* ============================================================
   EDUCATION
   ============================================================ */
.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}

.edu-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: border-color 0.2s, transform 0.2s;
}

.edu-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.edu-featured {
  border-color: rgba(99,102,241,0.2);
  background: linear-gradient(135deg, rgba(99,102,241,0.05), var(--surface));
  grid-column: span 1;
}

.edu-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  background: var(--accent-glow);
  border: 1px solid rgba(99,102,241,0.25);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.cert-icon {
  background: rgba(16,185,129,0.1);
  border-color: rgba(16,185,129,0.3);
  color: var(--green);
}

.edu-icon svg {
  width: 20px; height: 20px;
}

.edu-degree {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 4px;
}

.cert-card .edu-degree { color: var(--green); }

.edu-field {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.3;
}

.edu-school {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.edu-year {
  font-size: 12px;
  color: var(--text-dim);
  font-weight: 500;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 800px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.contact-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(99,102,241,0.1);
}

.contact-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  background: var(--accent-glow);
  border: 1px solid rgba(99,102,241,0.25);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.contact-icon svg {
  width: 20px; height: 20px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
  min-width: 0;
}

.contact-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-dim);
}

.contact-value {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.contact-arrow {
  font-size: 18px;
  color: var(--text-dim);
  transition: color 0.2s, transform 0.2s;
}

.contact-card:hover .contact-arrow {
  color: var(--accent);
  transform: translateX(3px);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-text {
  font-size: 13px;
  color: var(--text-dim);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-summary { margin: 0 auto 24px; }
  .hero-tags { justify-content: center; }
  .hero-links { justify-content: center; }
  .hero-visual { display: none; }

  .skills-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .edu-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .section { padding: 64px 0; }
  .card-top { flex-direction: column; }
}