* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

:root {
  --navy:   #0d1b2a;
  --navy2:  #1b2d42;
  --blue:   #1e6fc5;
  --blue2:  #2a85e8;
  --bg:     #f0f2f5;
  --card:   #ffffff;
  --text:   #0d1b2a;
  --muted:  #5a6a7a;
  --border: #dde2e8;
}

body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* ── HERO ── */
.hero {
  background: var(--navy);
  color: #fff;
  padding: 56px 24px 48px;
  text-align: center;
  border-bottom: 3px solid var(--blue);
}

.hero-inner {
  max-width: 640px;
  margin: 0 auto;
}

.avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  border: 3px solid var(--blue2);
  margin: 0 auto 18px;
  overflow: hidden;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero h1 {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.role {
  font-size: 15px;
  color: var(--blue2);
  margin-top: 6px;
  font-weight: 500;
}

.location {
  font-size: 13px;
  color: #8aa0b8;
  margin-top: 4px;
}

.resume-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 20px;
  padding: 9px 22px;
  border-radius: 4px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  transition: background 0.2s;
}

.resume-btn:hover {
  background: var(--blue2);
}

.resume-btn svg {
  width: 16px;
  height: 16px;
}

.links {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 22px;
  flex-wrap: wrap;
}

.links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid #3a5a7a;
  color: #a8c4de;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.links a:hover {
  border-color: var(--blue2);
  color: #fff;
  background: rgba(42,133,232,0.15);
}

.links a svg {
  width: 18px;
  height: 18px;
  display: block;
}

/* ── MAIN ── */
main {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

.section {
  margin-top: 48px;
}

.section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--blue);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.section-sub {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 16px;
  margin-top: -8px;
}

p { font-size: 14px; color: #445566; }

/* ── R&D CARD ── */
.rnd-card {
  background: var(--card);
  border-radius: 6px;
  padding: 24px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--blue);
  box-shadow: 0 1px 6px rgba(0,0,0,0.06);
}

.rnd-badge {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 3px;
  margin-bottom: 10px;
}

.rnd-card h3 {
  font-size: 17px;
  color: var(--navy);
  margin-bottom: 8px;
}

.rnd-card > p { margin-bottom: 14px; }

.model-grid {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.model-chip {
  background: #e8f0fb;
  color: var(--blue);
  border-radius: 3px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid #c5d8f5;
}

.rnd-list {
  list-style: none;
  padding: 0;
}

.rnd-list li {
  font-size: 13px;
  color: #445566;
  padding: 5px 0 5px 20px;
  position: relative;
  border-top: 1px solid #f0f2f5;
}

.rnd-list li:first-child { border-top: none; }

.rnd-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--blue);
  font-size: 12px;
}

/* ── TIMELINE ── */
.job {
  background: var(--card);
  border-radius: 6px;
  padding: 18px 20px;
  margin-bottom: 10px;
  border: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.job-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.job-header h3 {
  font-size: 15px;
  color: var(--navy);
  font-weight: 600;
}

.company {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.date {
  font-size: 11px;
  color: var(--blue);
  background: #e8f0fb;
  border: 1px solid #c5d8f5;
  padding: 3px 10px;
  border-radius: 3px;
  white-space: nowrap;
  flex-shrink: 0;
  font-weight: 600;
}

.job ul { list-style: none; padding: 0; }

.job ul li {
  font-size: 13px;
  color: #445566;
  padding: 3px 0 3px 16px;
  position: relative;
}

.job ul li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--blue);
}

/* ── APPS ── */
.apps-group-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 10px;
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

.app-card {
  display: flex;
  gap: 14px;
  background: var(--card);
  border-radius: 6px;
  padding: 18px;
  border: 1px solid var(--border);
  align-items: flex-start;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}


.app-info h3 {
  font-size: 15px;
  color: var(--navy);
  margin-bottom: 4px;
  font-weight: 600;
}

.app-info p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.4;
  margin-bottom: 10px;
}

.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 600;
  text-decoration: none;
}

.badge-store {
  background: #e8f0fb;
  color: var(--blue);
  border: 1px solid #c5d8f5;
}

.badge-store:hover { background: #d4e5f7; }

.badge-progress {
  background: #fef5e4;
  color: #8a6000;
  border: 1px solid #f0d88a;
}

/* ── SKILLS ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 12px;
}

.skill-group {
  background: var(--card);
  border-radius: 6px;
  padding: 16px;
  border: 1px solid var(--border);
}

.skill-group h4 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 10px;
  font-weight: 700;
}

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

.chips span {
  background: #f0f4f9;
  color: var(--navy2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 500;
}

/* ── FOOTER ── */
.site-footer {
  text-align: center;
  padding: 24px;
  font-size: 12px;
  color: #aaa;
  border-top: 1px solid var(--border);
  margin-top: 24px;
}