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

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: #0f1117;
  color: #e2e8f0;
  min-height: 100vh;
  padding: 48px 24px;
}

header {
  text-align: center;
  margin-bottom: 56px;
}

header h1 {
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #f8fafc;
}

header p {
  margin-top: 8px;
  font-size: 1rem;
  color: #94a3b8;
}

.section {
  max-width: 960px;
  margin: 0 auto 56px;
}

.section-title {
  font-size: 1.2rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #64748b;
  border-bottom: 1px solid #1e293b;
  padding-bottom: 10px;
  margin-bottom: 24px;
}

.subsection-title {
  font-size: 1rem;
  font-weight: 600;
  color: #94a3b8;
  margin: 28px 0 16px;
}

.subsection-title:first-of-type {
  margin-top: 0;
}

.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: #1e293b;
  border: 1px solid #2d3f55;
  border-radius: 12px;
  padding: 32px 16px;
  text-decoration: none;
  color: #e2e8f0;
  transition: background 0.15s, border-color 0.15s, transform 0.15s;
  min-height: 140px;
}

.tile:hover {
  background: #243447;
  border-color: #4a90d9;
  transform: translateY(-3px);
}

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

.tile-label {
  font-size: 0.95rem;
  font-weight: 500;
  text-align: center;
}

.tile-tag {
  font-size: 0.72rem;
  color: #64748b;
  background: #0f1117;
  border: 1px solid #2d3f55;
  border-radius: 4px;
  padding: 2px 8px;
}

.section-note {
  font-size: 0.88rem;
  color: #64748b;
  margin-bottom: 24px;
}

/* ===== Skills Chart ===== */
.skill-category {
  font-size: 1rem;
  font-weight: 600;
  color: #94a3b8;
  margin: 42px 0 18px;
}

.skill-category:first-child {
  margin-top: 0;
}

.skill-chart {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.skill-row {
  display: grid;
  grid-template-columns: 140px 1fr 72px;
  align-items: center;
  gap: 12px;
}

.skill-name {
  font-size: 1rem;
  color: #cbd5e1;
  text-align: right;
  white-space: nowrap;
}

.skill-bar-wrap {
  background: #1e293b;
  border-radius: 4px;
  height: 16px;
  overflow: hidden;
}

.skill-bar {
  height: 100%;
  background: #4a90d9;
  border-radius: 4px;
  width: 0%;
  transition: width 0.7s ease;
}

.skill-months {
  font-size: 0.9rem;
  color: #64748b;
  white-space: nowrap;
}