/* ============================================
   Michael Hayes - Portfolio Site Styles
   VCF 9 Infrastructure Engineer
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --bg-primary: #0f1923;
  --bg-secondary: #1a2a3a;
  --bg-card: #1e3044;
  --accent: #00b4d8;
  --accent-glow: rgba(0, 180, 216, 0.15);
  --accent-dim: rgba(0, 180, 216, 0.6);
  --text-primary: #e0e0e0;
  --text-secondary: #9ab0c4;
  --text-heading: #ffffff;
  --text-muted: #6b8299;
  --border: rgba(0, 180, 216, 0.12);
  --border-hover: rgba(0, 180, 216, 0.3);
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
  --transition: 0.3s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Circuit/grid background pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.03;
  background-image:
    linear-gradient(var(--accent) 1px, transparent 1px),
    linear-gradient(90deg, var(--accent) 1px, transparent 1px);
  background-size: 60px 60px;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

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

a:hover {
  color: #33c9e8;
}

strong {
  color: var(--text-heading);
  font-weight: 600;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
  background: transparent;
}

.nav.scrolled {
  background: rgba(15, 25, 35, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: -0.02em;
}

.nav-logo:hover {
  color: var(--text-heading);
}

.nav-logo .accent {
  color: var(--accent);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}

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

.nav-links a:hover::after {
  width: 100%;
}

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

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition);
  border-radius: 1px;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0, 180, 216, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 180, 216, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(0, 180, 216, 0.06) 0%, transparent 40%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 20px;
  border: 1px solid var(--border-hover);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 32px;
  background: var(--accent-glow);
}

.hero-name {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.hero-title {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: 12px;
}

.hero-title .accent {
  color: var(--accent);
  margin: 0 4px;
}

.hero-tagline {
  font-size: 1.1rem;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 40px;
}

.hero-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn .icon {
  width: 18px;
  height: 18px;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background: #33c9e8;
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 180, 216, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-hover);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* Scroll indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; height: 40px; }
  50% { opacity: 1; height: 50px; }
}

/* --- Sections --- */
.section {
  padding: 100px 0;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.revealed {
  opacity: 1;
  transform: translateY(0);
}

.section-alt {
  background: var(--bg-secondary);
  position: relative;
}

.section-alt::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-hover), transparent);
}

.section-alt::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-hover), transparent);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 16px;
  text-align: center;
  letter-spacing: -0.02em;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--accent);
  margin: 16px auto 0;
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 650px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
  margin-top: 48px;
}

.about-lead {
  font-size: 1.15rem;
  color: var(--text-heading);
  font-weight: 400;
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-text p {
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.highlight-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition);
}

.highlight-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.highlight-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
  margin-bottom: 4px;
}

.highlight-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Certifications --- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: all var(--transition);
}

.cert-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.cert-badge {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--accent-glow);
  border: 1px solid var(--border-hover);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-icon {
  width: 28px;
  height: 28px;
  color: var(--accent);
}

.cert-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 4px;
}

.cert-issuer {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cert-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.cert-placeholder {
  border-style: dashed;
  opacity: 0.7;
}

.cert-placeholder:hover {
  opacity: 1;
}

/* --- Technical Skills --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.skill-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
}

.skill-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.skill-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.skill-icon {
  width: 24px;
  height: 24px;
  color: var(--accent);
  flex-shrink: 0;
}

.skill-header h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-heading);
}

.skill-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.skill-list li {
  font-size: 0.92rem;
  color: var(--text-primary);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}

.skill-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.skill-note {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* --- Lab Environment --- */
.lab-architecture {
  max-width: 900px;
  margin: 0 auto;
  font-family: var(--font-mono);
}

.lab-tier {
  margin-bottom: 8px;
}

.lab-tier-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 12px;
  padding-left: 4px;
  font-weight: 600;
}

.lab-nodes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.lab-node {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.lab-node::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--accent);
  opacity: 0.4;
  transition: opacity var(--transition);
}

.lab-node:hover {
  border-color: var(--border-hover);
  transform: translateX(4px);
}

.lab-node:hover::before {
  opacity: 1;
}

.lab-node-primary::before {
  background: var(--accent);
  opacity: 1;
}

.lab-node-host::before {
  background: #22c55e;
}

.lab-node-ops::before {
  background: #a855f7;
}

.lab-node-infra::before {
  background: #f59e0b;
}

.lab-node-status {
  width: 7px;
  height: 7px;
  background: #22c55e;
  border-radius: 50%;
  position: absolute;
  top: 12px;
  right: 12px;
  box-shadow: 0 0 6px rgba(34, 197, 94, 0.5);
  animation: statusPulse 3s ease-in-out infinite;
}

@keyframes statusPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.lab-node-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-heading);
  padding-right: 20px;
}

.lab-node-role {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 400;
}

.lab-connector {
  display: flex;
  justify-content: center;
  padding: 8px 0;
}

.connector-line {
  width: 2px;
  height: 24px;
  background: linear-gradient(to bottom, var(--accent-dim), var(--border));
  border-radius: 1px;
}

/* --- Capabilities --- */
.capabilities-grid {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.capability-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.capability-item:hover {
  border-color: var(--border-hover);
  transform: translateX(6px);
  background: var(--bg-card);
}

.capability-marker {
  width: 10px;
  height: 10px;
  min-width: 10px;
  background: var(--accent);
  border-radius: 2px;
  margin-top: 6px;
  transform: rotate(45deg);
}

.capability-item:hover .capability-marker {
  box-shadow: 0 0 10px var(--accent-dim);
}

.capability-item p {
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.6;
}

.capability-detail {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 4px;
}

/* --- Documentation Samples --- */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.doc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
}

.doc-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.doc-icon {
  width: 40px;
  height: 40px;
  color: var(--accent);
  margin-bottom: 16px;
}

.doc-icon svg {
  width: 100%;
  height: 100%;
}

.doc-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 12px;
  line-height: 1.4;
}

.doc-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.doc-status {
  display: inline-block;
  padding: 4px 14px;
  background: var(--accent-glow);
  border: 1px solid var(--border-hover);
  border-radius: 50px;
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.doc-card-link {
  text-decoration: none;
  cursor: pointer;
  display: block;
}

.doc-card-link:hover .doc-status-view {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}

.doc-status-view {
  transition: all var(--transition);
}

/* --- Purchase CTA --- */
.nav-cta {
  background: var(--accent) !important;
  color: var(--bg-primary) !important;
  padding: 6px 14px !important;
  border-radius: 6px !important;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
}
.nav-cta:hover {
  background: #00cfff !important;
  transform: translateY(-1px);
}
.nav-cta::after {
  display: none !important;
}

.doc-card-purchase {
  border: 2px solid var(--accent) !important;
  background: linear-gradient(135deg, var(--bg-card), rgba(0, 180, 216, 0.08)) !important;
  max-width: 480px;
}
.doc-card-purchase:hover {
  border-color: #00cfff !important;
  box-shadow: 0 0 30px rgba(0, 180, 216, 0.2);
}
.doc-card-purchase .doc-icon svg {
  stroke: var(--accent);
}

.doc-status-purchase {
  display: inline-block;
  padding: 6px 16px;
  background: var(--accent);
  color: var(--bg-primary);
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition);
}
.doc-card-purchase:hover .doc-status-purchase {
  background: #00cfff;
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.contact-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: all var(--transition);
  display: block;
  color: var(--text-primary);
}

.contact-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
}

.contact-icon {
  width: 32px;
  height: 32px;
  color: var(--accent);
  margin: 0 auto 16px;
  display: block;
}

.contact-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 8px;
}

.contact-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  word-break: break-word;
}

.contact-company {
  cursor: default;
}

/* --- Footer --- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 900px) {
  .skills-grid {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-highlights {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .highlight-card {
    flex: 1;
    min-width: 140px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(15, 25, 35, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
  }

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

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 100px 0 60px;
    min-height: auto;
  }

  .hero-name {
    font-size: 2.5rem;
  }

  .hero-scroll-indicator {
    display: none;
  }

  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .lab-nodes {
    grid-template-columns: 1fr;
  }

  .docs-grid {
    grid-template-columns: 1fr;
  }

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

  .capability-item {
    padding: 16px 18px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-badge {
    font-size: 0.7rem;
    padding: 5px 14px;
  }

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

  .hero-title {
    font-size: 0.95rem;
  }

  .hero-tagline {
    font-size: 0.95rem;
  }

  .hero-links {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    justify-content: center;
    max-width: 260px;
  }

  .about-highlights {
    flex-direction: column;
  }

  .highlight-card {
    min-width: unset;
  }

  .cert-grid {
    grid-template-columns: 1fr;
  }

  .skill-card {
    padding: 24px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 1.4rem;
  }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
  .nav,
  .hero-scroll-indicator,
  .hero-bg-pattern {
    display: none;
  }

  body {
    background: #fff;
    color: #222;
  }

  body::before {
    display: none;
  }

  .section {
    opacity: 1;
    transform: none;
    padding: 32px 0;
  }

  .section-alt {
    background: #f8f8f8;
  }

  .hero {
    min-height: auto;
    padding: 40px 0;
  }

  .hero-name,
  .section-title,
  .skill-header h3,
  .cert-name,
  .doc-card h3,
  .contact-card h3 {
    color: #111;
  }

  .hero-title,
  .hero-tagline,
  .about-text p,
  .skill-list li,
  .capability-item p {
    color: #444;
  }

  a {
    color: #0066cc;
  }

  .skill-card,
  .cert-card,
  .doc-card,
  .contact-card,
  .highlight-card,
  .capability-item,
  .lab-node {
    border-color: #ddd;
    background: #fff;
    box-shadow: none;
  }
}