/* ============================================
   DR. ASH BOOTH - FINE LINE BLACKWORK THEME
   Geometric Surrealism / Technical Blueprint
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  /* Monochrome Palette */
  --white: #ffffff;
  --off-white: #f8f8f8;
  --light-gray: #e8e8e8;
  --mid-gray: #888888;
  --dark-gray: #333333;
  --charcoal: #1a1a1a;
  --black: #000000;

  /* Typography */
  --font-heading: 'Cormorant Garamond', serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-2xl: 8rem;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;

  /* Layout */
  --max-width: 1100px;
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--white);
  color: var(--charcoal);
  line-height: 1.7;
  min-height: 100vh;
  font-weight: 300;
}

::selection {
  background: var(--black);
  color: var(--white);
}

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

a:hover {
  opacity: 0.6;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 300;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(3rem, 10vw, 6rem);
  font-weight: 300;
  font-style: italic;
}

h2 {
  font-size: clamp(2rem, 5vw, 3rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 400;
}

h4 {
  font-size: 1.1rem;
  font-weight: 500;
  font-family: var(--font-body);
}

p {
  margin-bottom: var(--space-md);
  color: var(--dark-gray);
}

/* Technical label style - like blueprint annotations */
.label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--mid-gray);
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}

.label::before {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--mid-gray);
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-2xl) 0;
  position: relative;
  z-index: 1;
}

.grid {
  display: grid;
  gap: var(--space-xl);
}

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

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

@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* ---------- Header & Navigation ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--light-gray);
}

/* Ensure main content is above background decorations */
main, .hero, .footer {
  position: relative;
  z-index: 1;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--black);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--dark-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  position: relative;
  padding: var(--space-sm) 0;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--black);
  transition: var(--transition-base);
}

.nav a:hover,
.nav a.active {
  color: var(--black);
  opacity: 1;
}

.nav a:hover::after,
.nav a.active::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.menu-toggle span {
  width: 20px;
  height: 1px;
  background: var(--black);
  transition: var(--transition-base);
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-xl) var(--space-lg);
    transform: translateX(100%);
    transition: var(--transition-base);
  }

  .nav.open {
    transform: translateX(0);
  }

  .nav a {
    font-size: 0.9rem;
  }
}

/* ---------- Hero Section ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-height) + var(--space-xl)) var(--space-lg);
  position: relative;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  z-index: 2;
  max-width: 800px;
  position: relative;
}

.hero-label {
  margin-bottom: var(--space-lg);
}

.hero h1 {
  margin-bottom: var(--space-lg);
  color: var(--black);
}

.hero-tagline {
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  font-style: italic;
  color: var(--dark-gray);
  margin-bottom: var(--space-xl);
  font-weight: 300;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Geometric Decorations */
.geo-decoration {
  position: absolute;
  pointer-events: none;
  opacity: 0.18;
  z-index: 0;
}

.orbital-rings {
  width: 500px;
  height: 500px;
  right: -150px;
  top: 50%;
  transform: translateY(-50%);
}

.orbital-rings-left {
  width: 400px;
  height: 400px;
  left: -100px;
  bottom: 10%;
}

/* Floating Elements */
.floating-elements {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}

.float-binary {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--black);
  opacity: 0.15;
  animation: float-drift 20s ease-in-out infinite;
}

.float-binary:nth-child(odd) {
  animation-duration: 25s;
  animation-direction: reverse;
}

.float-binary:nth-child(3n) {
  animation-duration: 30s;
  font-size: 0.6rem;
}

.float-block {
  position: absolute;
  width: 20px;
  height: 4px;
  background: var(--black);
  opacity: 0.15;
  animation: float-drift 22s ease-in-out infinite;
}

.float-block.wide {
  width: 35px;
  height: 5px;
}

.float-block:nth-child(even) {
  animation-duration: 28s;
  animation-direction: reverse;
}

.float-dot {
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--black);
  opacity: 0.15;
  animation: float-drift 18s ease-in-out infinite;
}

.float-dot.large {
  width: 8px;
  height: 8px;
  opacity: 0.12;
}

@keyframes float-drift {
  0%, 100% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(5px, -10px);
  }
  50% {
    transform: translate(-5px, 5px);
  }
  75% {
    transform: translate(8px, -5px);
  }
}

/* Binary rain background - subtle */
.binary-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.binary-column {
  position: absolute;
  top: -50%;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 2;
  letter-spacing: 0.15em;
  color: var(--black);
  opacity: 0.1;
  writing-mode: vertical-rl;
  animation: binary-fall linear infinite;
}

@keyframes binary-fall {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(150vh);
  }
}

/* Static scattered binary */
.static-binary {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.static-binary span {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--black);
  opacity: 0.12;
  animation: static-float 30s ease-in-out infinite;
}

.static-binary span:nth-child(odd) {
  animation-direction: reverse;
  animation-duration: 35s;
}

.static-binary span:nth-child(3n) {
  animation-duration: 40s;
  opacity: 0.09;
}

@keyframes static-float {
  0%, 100% {
    transform: translate(0, 0);
  }
  33% {
    transform: translate(10px, -15px);
  }
  66% {
    transform: translate(-8px, 10px);
  }
}

/* Page decoration lines */
.page-lines {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.page-lines::before,
.page-lines::after {
  content: '';
  position: absolute;
  background: var(--mid-gray);
}

.page-lines::before {
  top: 0;
  left: 8%;
  width: 1px;
  height: 100%;
  opacity: 0.2;
}

.page-lines::after {
  top: 0;
  right: 8%;
  width: 1px;
  height: 100%;
  opacity: 0.2;
}

.scattered-dots {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--black);
  background: transparent;
  color: var(--black);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  cursor: pointer;
  transition: var(--transition-base);
}

.btn:hover {
  background: var(--black);
  color: var(--white);
  opacity: 1;
}

.btn-primary {
  background: var(--black);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--white);
  color: var(--black);
}

/* ---------- Cards ---------- */
.card {
  padding: var(--space-lg);
  border: 1px solid var(--light-gray);
  transition: var(--transition-base);
  position: relative;
  background: var(--white);
}

.card:hover {
  border-color: var(--black);
}

.card .label {
  margin-bottom: var(--space-md);
}

.card h3 {
  margin-bottom: var(--space-sm);
}

.card p {
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--mid-gray);
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ---------- About Section ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--space-xl);
  align-items: start;
}

@media (max-width: 800px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

.about-image {
  position: relative;
}

.about-image img {
  width: 100%;
  filter: grayscale(100%);
  border: 1px solid var(--light-gray);
}

.about-image::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 10px;
  right: -10px;
  bottom: -10px;
  border: 1px solid var(--light-gray);
  z-index: -1;
}

.about-content .label {
  margin-bottom: var(--space-lg);
}

.about-content h2 {
  margin-bottom: var(--space-lg);
}

/* Skills */
.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--light-gray);
  color: var(--dark-gray);
}

/* ---------- Blog Styles ---------- */
.blog-list {
  display: grid;
  gap: var(--space-lg);
}

.blog-card {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-lg);
  padding: var(--space-lg);
  border: 1px solid var(--light-gray);
  transition: var(--transition-base);
  color: var(--charcoal);
}

.blog-card:hover {
  border-color: var(--black);
  opacity: 1;
}

.blog-date {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--mid-gray);
  text-align: right;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-date .day {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 300;
  display: block;
  color: var(--black);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.blog-content h3 {
  margin-bottom: var(--space-sm);
  font-family: var(--font-heading);
  transition: var(--transition-fast);
}

.blog-card:hover h3 {
  font-style: italic;
}

.blog-excerpt {
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
  color: var(--dark-gray);
}

.blog-tags {
  display: flex;
  gap: var(--space-sm);
}

.blog-tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--mid-gray);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (max-width: 600px) {
  .blog-card {
    grid-template-columns: 1fr;
  }

  .blog-date {
    text-align: left;
    display: flex;
    align-items: baseline;
    gap: var(--space-sm);
  }

  .blog-date .day {
    font-size: 1.5rem;
  }
}

/* ---------- Blog Post ---------- */
.post {
  max-width: 720px;
  margin: 0 auto;
  padding-top: calc(var(--header-height) + var(--space-xl));
}

.post-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--light-gray);
}

.post-header .label {
  margin-bottom: var(--space-md);
}

.post-header h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: var(--space-md);
}

.post-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--mid-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.post-content {
  font-size: 1.05rem;
  line-height: 1.85;
}

.post-content h2 {
  margin-top: var(--space-xl);
  font-size: 1.75rem;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--light-gray);
}

.post-content h3 {
  margin-top: var(--space-lg);
  font-size: 1.3rem;
}

.post-content p {
  color: var(--charcoal);
}

.post-content a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-content ul,
.post-content ol {
  margin: var(--space-lg) 0;
  padding-left: var(--space-lg);
}

.post-content li {
  margin-bottom: var(--space-sm);
  color: var(--charcoal);
  position: relative;
  padding-left: var(--space-md);
}

.post-content ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--mid-gray);
}

.post-content ol {
  list-style: decimal;
  padding-left: var(--space-xl);
}

.post-content ol li {
  padding-left: 0;
}

.post-content ol li::before {
  display: none;
}

.post-content ol li::marker {
  color: var(--mid-gray);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.post-content blockquote {
  border-left: 2px solid var(--black);
  padding-left: var(--space-lg);
  margin: var(--space-xl) 0;
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--dark-gray);
}

.post-content pre {
  background: var(--off-white);
  border: 1px solid var(--light-gray);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
  overflow-x: auto;
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.post-content code {
  font-family: var(--font-mono);
  background: var(--off-white);
  padding: 0.15em 0.4em;
  font-size: 0.85em;
  border: 1px solid var(--light-gray);
}

.post-content pre code {
  background: none;
  padding: 0;
  border: none;
}

.post-content img {
  margin: var(--space-xl) 0;
  border: 1px solid var(--light-gray);
  filter: none;
}

.post-nav {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--light-gray);
}

.post-nav a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ---------- Publications ---------- */
.publication-card {
  padding: var(--space-lg);
  border: 1px solid var(--light-gray);
  margin-bottom: var(--space-lg);
}

.publication-card .label {
  margin-bottom: var(--space-sm);
}

.publication-card h3 {
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
}

.publication-card p {
  font-size: 0.9rem;
  margin-bottom: var(--space-xs);
}

/* ---------- Contact Page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-xl);
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--dark-gray);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--light-gray);
}

.contact-link:hover {
  color: var(--black);
  opacity: 1;
}

.contact-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex-shrink: 0;
}

/* ---------- Footer ---------- */
.footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--light-gray);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--mid-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-links a:hover {
  color: var(--black);
}

.footer-copyright {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--mid-gray);
}

/* ---------- Page Headers ---------- */
.page-header {
  padding: calc(var(--header-height) + var(--space-2xl)) 0 var(--space-xl);
  position: relative;
}

.page-header .label {
  margin-bottom: var(--space-md);
}

.page-header h1 {
  font-size: clamp(2.5rem, 8vw, 4rem);
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--space-lg);
  width: 60px;
  height: 1px;
  background: var(--black);
}

/* ---------- Section Dividers ---------- */
.section-alt {
  background: var(--off-white);
}

.section-dark {
  background: var(--charcoal);
  color: var(--white);
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--white);
}

.section-dark p {
  color: var(--light-gray);
}

.section-dark .label {
  color: var(--mid-gray);
}

.section-dark .label::before {
  background: var(--mid-gray);
}

.section-dark .card {
  background: var(--charcoal);
  border-color: var(--dark-gray);
}

.section-dark .card:hover {
  border-color: var(--white);
}

.section-dark .btn {
  border-color: var(--white);
  color: var(--white);
}

.section-dark .btn:hover {
  background: var(--white);
  color: var(--charcoal);
}

/* ---------- Utilities ---------- */
.text-center { text-align: center; }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* ---------- Animations ---------- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

[data-animate] {
  opacity: 0;
}

[data-animate].animate-fade-in {
  animation: fadeIn 0.6s ease forwards;
}

/* Stagger animations */
.grid [data-animate]:nth-child(1) { animation-delay: 0s; }
.grid [data-animate]:nth-child(2) { animation-delay: 0.1s; }
.grid [data-animate]:nth-child(3) { animation-delay: 0.2s; }
.grid [data-animate]:nth-child(4) { animation-delay: 0.3s; }
.grid [data-animate]:nth-child(5) { animation-delay: 0.4s; }
.grid [data-animate]:nth-child(6) { animation-delay: 0.5s; }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--off-white);
}

::-webkit-scrollbar-thumb {
  background: var(--mid-gray);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--dark-gray);
}

/* ---------- Print Styles ---------- */
@media print {
  .header,
  .footer,
  .hero-cta,
  .geo-decoration {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: var(--space-lg);
  }
}