/* Reset and base styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #f8f9fa;
  --color-card: #ffffff;
  --color-text: #1a1a1a;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-badge-bg: #f3f4f6;
  --color-badge-text: #374151;
  --font-sans:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  --font-mono:
    ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --max-width: 720px;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  padding: 2rem 1rem;
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Card wrapper */
.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 2.5rem;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.header-content {
  flex: 1;
}

.header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.tagline {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  line-height: 1.5;
  margin-bottom: 0.25rem;
}

.location {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

/* Social icons */
.social-links {
  display: flex;
  gap: 0.625rem;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: all 0.2s ease;
}

.social-icon:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

/* Header photo */
.header-photo {
  flex-shrink: 0;
}

.overlap-wrapper {
  display: grid;
  cursor: pointer;
  position: relative;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
}

.overlap-item {
  grid-area: 1/1;
  transition: opacity 500ms ease-in-out;
  border-radius: 50%;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.overlap-item.reveal-item {
  opacity: 1;
}

.overlap-item.reveal-item:hover {
  opacity: 0;
}

/* Sections */
.section {
  margin-bottom: 2rem;
}

.section:last-child {
  margin-bottom: 0;
}

.section-header {
  display: flex;
  justify-content: start;
  align-items: baseline;
  gap: 0.75rem;
}

.section h2 {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

/* Entry (for experience, education) */
.entry {
  margin-bottom: 1.5rem;
}

.entry:last-child {
  margin-bottom: 0;
}

.entry-minimal {
  margin-bottom: 1rem;
}

.entry-minimal .meta {
  margin-bottom: 0;
}

.entry-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.entry-title-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.solo-icon {
  color: var(--color-text-muted);
  flex-shrink: 0;
  cursor: default;
  display: flex;
  align-items: center;
  position: relative;
}

.solo-icon::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%);
  padding: 0.3rem 0.6rem;
  background: var(--color-text);
  color: var(--color-card);
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--font-sans);
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.solo-icon::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: calc(100% + 3px);
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--color-text);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
}

.solo-icon:hover::after,
.solo-icon:hover::before {
  opacity: 1;
}

.entry h3 {
  font-size: 1.0625rem;
  font-weight: 600;
}

.entry h3 a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s ease;
}

.entry h3 a:hover {
  color: var(--color-text-muted);
}

.badge {
  display: inline-block;
  padding: 0.1875rem 0.625rem;
  background-color: var(--color-badge-bg);
  color: var(--color-badge-text);
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 4px;
}

.date {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.meta {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.meta a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.meta .separator {
  margin: 0 0.25rem;
}

.description {
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.65;
}

/* Responsive */
@media (max-width: 600px) {
  body {
    padding: 1rem 0.75rem;
  }

  .card {
    padding: 1.5rem;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .header {
    flex-direction: column-reverse;
    gap: 1.25rem;
  }

  .header-photo {
    align-self: flex-start;
  }

  .overlap-wrapper {
    width: 80px;
    height: 80px;
  }

  .header h1 {
    font-size: 1.75rem;
  }

  .entry-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .date {
    font-size: 0.875rem;
  }
}

/* Print styles */
@media print {
  body {
    padding: 0;
    background: white;
  }

  .card {
    border: none;
    padding: 0;
    box-shadow: none;
  }

  .container {
    max-width: 100%;
  }

  .social-icon {
    border: 1px solid #ccc;
  }

  a {
    color: inherit;
    text-decoration: none;
  }
}