/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  --bg: #0a0a0f;
  --surface: #141420;
  --card-bg: #111118;
  --card-border: #1a1a2a;
  --muted: #888;
  --text: #e0e0e0;
  --heading: #fff;
  --navy: #1a2a4a;
  --hover: #2a4a7a;
  --font-heading: 'Courier New', Courier, monospace;
  --font-body: -apple-system, 'Segoe UI', Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  opacity: 0;
  scrollbar-gutter: stable;
  animation: fadeIn 0.3s ease forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--heading);
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--heading);
  font-weight: bold;
}

/* ============================================
   CANVAS BACKGROUND
   ============================================ */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(20, 20, 32, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-border);
  padding: 0 2rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--heading);
  font-weight: bold;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  transition: color 0.3s ease;
  padding: 0.5rem 0;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--heading);
}

.nav-links a.active {
  border-bottom: 2px solid var(--hover);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--heading);
  transition: all 0.3s ease;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main {
  position: relative;
  z-index: 1;
  padding-top: 60px;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

.page-title {
  font-size: 2rem;
  margin-bottom: 2rem;
  text-align: center;
}

/* ============================================
   CARD COMPONENT
   ============================================ */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 24px;
  transition: all 0.3s ease;
}

.card:hover {
  border-color: var(--hover);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(42, 74, 122, 0.2);
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--muted);
  font-size: 0.95rem;
}

.card-grid {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.card-grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

.card-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.card-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.card-stack {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

a.card {
  display: block;
  cursor: pointer;
}

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

.card-icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  text-align: center;
}

.card-indicator {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--hover);
  margin-top: 0.75rem;
}

.project-thumbnails {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1rem;
}

.project-thumbnails button {
  appearance: none;
  display: block;
  width: 72px;
  height: 72px;
  border: 1px solid var(--card-border);
  border-radius: 6px;
  overflow: hidden;
  background: var(--bg);
  cursor: pointer;
  padding: 0;
}

.project-thumbnails button:hover,
.project-thumbnails button:focus-visible {
  border-color: var(--hover);
  outline: none;
}

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

body.image-preview-open {
  overflow: hidden;
}

.image-lightbox {
  appearance: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(10, 10, 15, 0.94);
  border: 0;
  cursor: pointer;
  opacity: 0;
  padding: 0;
  transition: opacity 220ms ease;
}

.image-lightbox.open {
  opacity: 1;
}

.image-lightbox.closing {
  opacity: 0;
}

.image-lightbox img {
  position: fixed;
  display: block;
  left: 0;
  top: 0;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
  object-fit: contain;
  transform-origin: top left;
  transition: transform 260ms ease;
}

/* ============================================
   SKILL PILLS (resume)
   ============================================ */
.pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pill {
  background: var(--bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 0.35rem 0.85rem;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  color: var(--muted);
}

/* ============================================
   EXPANDABLE CARD (resume experience)
   ============================================ */
.card-expandable {
  cursor: pointer;
}

.card-expandable .card-details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.card-expandable.expanded .card-details {
  max-height: 600px;
}

.card-expandable .expand-icon {
  float: right;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--muted);
  transition: transform 0.3s ease;
}

.card-expandable.expanded .expand-icon {
  transform: rotate(45deg);
}

.card-details ul {
  list-style: none;
  padding: 0;
  margin-top: 1rem;
}

.card-details li {
  padding: 0.4rem 0;
  padding-left: 1rem;
  position: relative;
  color: var(--text);
  font-size: 0.9rem;
}

.card-details li::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--hover);
  font-family: var(--font-heading);
}

/* ============================================
   EXPERIENCE CARD HEADER
   ============================================ */
.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.exp-company {
  font-size: 1.1rem;
  color: var(--heading);
  font-family: var(--font-heading);
  font-weight: bold;
}

.exp-title {
  color: var(--text);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.exp-dates {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
}

/* ============================================
   HERO SECTION (home)
   ============================================ */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
  position: relative;
}

.hero-fetch {
  display: flex;
  align-items: center;
  gap: 2rem;
  max-width: 1100px;
  width: 100%;
}

.hero-ascii {
  font-family: var(--font-heading);
  font-size: 0.45rem;
  line-height: 1.05;
  color: #5a8abf;
  white-space: pre;
  flex-shrink: 0;
  opacity: 0.9;
  margin: 0;
}

.hero-info {
  text-align: left;
}

.hero h1 {
  font-size: 3.5rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: #5a8abf;
  min-height: 1.5em;
  margin-bottom: 1.5rem;
  white-space: nowrap;
}

.hero-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--hover);
  margin-left: 2px;
  animation: blink 0.8s infinite;
  vertical-align: text-bottom;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.hero-copy {
  max-width: 700px;
  color: var(--muted);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  line-height: 1.8;
  text-align: justify;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero-copy.visible {
  opacity: 1;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  animation: bounce 2s infinite;
  color: var(--muted);
  font-size: 1.5rem;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

/* ============================================
   CATEGORY HEADING (projects)
   ============================================ */
.category-heading {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1rem;
  margin-top: 2.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  overflow: hidden;
}

.category-heading::after {
  content: '+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;+;:;';
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
  color: var(--text);
  opacity: 0.18;
  letter-spacing: 0;
}

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

.subcategory-heading {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  color: var(--muted);
  letter-spacing: 1px;
  margin-bottom: 0.75rem;
  margin-top: 0.5rem;
  opacity: 0.7;
}

/* ============================================
   CTA BUTTON (contractor)
   ============================================ */
.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  border: 1px solid var(--hover);
  border-radius: 4px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--heading);
  background: transparent;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn:hover {
  background: var(--hover);
  color: var(--heading);
}

/* ============================================
   CONTACT STRIP
   ============================================ */
.contact-strip {
  border-top: 1px solid var(--card-border);
  padding: 2rem;
  margin-top: 3rem;
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.contact-strip a {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 1px;
}

.contact-strip a:hover {
  color: var(--heading);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .card-grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .card-grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .card-grid--4,
  .card-grid--3,
  .card-grid--2 {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 60px;
    right: 0;
    bottom: 0;
    width: 250px;
    background: var(--surface);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-left: 1px solid var(--card-border);
  }

  .nav-links.open {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

  .hero-fetch {
    flex-direction: column;
  }

  .hero-ascii {
    font-size: 0.3rem;
  }

  .hero-info {
    text-align: center;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 0.9rem;
  }

  .contact-strip {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .exp-header {
    flex-direction: column;
  }
}