@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Space+Mono:ital,wght@0,400;0,700;1,400;1,700&display=swap');

:root {
  --bg-color: #f4f4f0;
  --text-color: #111111;
  --text-muted: #555555;
  --border-color: #111111;
  --accent-color: #e63946; /* Technical Red */
  
  --font-mono: 'Space Mono', monospace;
  --font-sans: 'Inter', sans-serif;
  
  --grid-size: 20px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-sans);
  line-height: 1.5;
  position: relative;
  /* Blueprint/Graph paper background */
  background-image: 
    linear-gradient(to right, rgba(17,17,17,0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(17,17,17,0.05) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
}

/* Add major grid lines */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    linear-gradient(to right, rgba(17,17,17,0.1) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(17,17,17,0.1) 1px, transparent 1px);
  background-size: calc(var(--grid-size) * 5) calc(var(--grid-size) * 5);
  z-index: -1;
  pointer-events: none;
}

/* Typography */
h1, h2, h3, h4 {
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: -1px;
}

h1 {
  font-size: clamp(3rem, 6vw, 6rem);
  line-height: 0.9;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 1rem;
  margin-bottom: 2rem;
}

h2 {
  font-size: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

h2 .section-id {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
}

a {
  color: var(--text-color);
  text-decoration: none;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  border-left: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  background-color: var(--bg-color); /* Cover the body grid slightly */
}

/* Header / Nav */
.header {
  border-bottom: 2px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-transform: uppercase;
  position: sticky;
  top: 0;
  background: var(--bg-color);
  z-index: 100;
}

.header-left {
  display: flex;
  gap: 2rem;
}

.header-right {
  display: flex;
  gap: 1.5rem;
}

.header a:hover {
  background: var(--text-color);
  color: var(--bg-color);
}

/* Hero Section */
.hero {
  padding: 4rem 2rem;
  border-bottom: 2px solid var(--border-color);
  position: relative;
}

.hero-meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}

.meta-group {
  display: flex;
  flex-direction: column;
}

.meta-label {
  color: var(--text-muted);
  margin-bottom: 0.2rem;
}

.meta-value {
  font-weight: 700;
}

/* Experience Table */
.section-block {
  padding: 4rem 2rem;
  border-bottom: 2px solid var(--border-color);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-sans);
}

.data-table th, .data-table td {
  border: 1px solid var(--border-color);
  padding: 1rem;
  text-align: left;
  vertical-align: top;
}

.data-table th {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.85rem;
  background-color: var(--border-color);
  color: var(--bg-color);
}

.data-table td.year {
  font-family: var(--font-mono);
  font-weight: 700;
  white-space: nowrap;
  width: 150px;
}

.data-table td.role {
  font-weight: 700;
  font-size: 1.1rem;
}

.data-table td.desc {
  color: var(--text-muted);
}

/* Projects Specs Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.spec-sheet {
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s, box-shadow 0.2s;
}

.spec-sheet:hover {
  transform: translate(-4px, -4px);
  box-shadow: 4px 4px 0 var(--border-color);
}

.spec-header {
  border-bottom: 1px solid var(--border-color);
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: rgba(17,17,17,0.05);
}

.spec-id {
  font-weight: 700;
}

.spec-status {
  color: var(--accent-color);
  font-weight: 700;
  text-transform: uppercase;
}

.spec-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-bottom: 1px solid var(--border-color);
  filter: grayscale(100%) contrast(1.2);
  transition: filter 0.3s;
}

.spec-sheet:hover .spec-image {
  filter: grayscale(0%);
}

.spec-body {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.spec-body h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.spec-body p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.spec-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
}

.spec-tech span {
  border: 1px solid var(--border-color);
  padding: 0.2rem 0.5rem;
}

/* Skills Matrix */
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  border-top: 1px solid var(--border-color);
  border-left: 1px solid var(--border-color);
}

.matrix-cell {
  border-bottom: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  padding: 1.5rem;
}

.matrix-cell h3 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 1rem;
  color: var(--accent-color);
}

.matrix-cell ul {
  list-style: none;
  font-size: 0.95rem;
  font-weight: 500;
}

.matrix-cell li {
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
}

.matrix-cell li span.level {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Footer */
.footer {
  padding: 2rem;
  border-top: 2px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-transform: uppercase;
}

.btn {
  display: inline-block;
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  background: var(--border-color);
  color: var(--bg-color);
  transition: all 0.2s;
  cursor: pointer;
}

.btn:hover {
  background: var(--bg-color);
  color: var(--border-color);
  box-shadow: 4px 4px 0 var(--border-color);
}

@media (max-width: 768px) {
  h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
  }
  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
  }
  .header-right {
    flex-wrap: wrap;
    gap: 1rem;
  }
  .hero {
    padding: 3rem 1rem;
  }
  .section-block {
    padding: 3rem 1rem;
  }
  .hero-meta {
    gap: 1.5rem;
    grid-template-columns: 1fr;
  }
  
  /* Transform Data Tables into Mobile Cards */
  .data-table thead {
    display: none;
  }
  .data-table tr {
    display: block;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
  }
  .data-table th, .data-table td {
    display: block;
    width: 100%;
    border: none;
    border-bottom: 1px solid rgba(17,17,17,0.1);
  }
  .data-table td:last-child {
    border-bottom: none;
  }
  .data-table td.year {
    font-size: 0.8rem;
    background: rgba(17,17,17,0.05);
    border-bottom: 1px solid var(--border-color);
  }
  
  /* Ensure grids become single columns */
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .matrix-grid {
    grid-template-columns: 1fr;
    border-top: none;
    border-left: none;
  }
  .matrix-cell {
    border-left: 1px solid var(--border-color);
    border-top: 1px solid var(--border-color);
  }
  
  /* Footer stacking */
  .footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem 1rem;
  }
}