/* ============================================
   Design Tokens
   ============================================ */
:root {
  --color-primary: #1a1f36;
  --color-bg: #f8f7f4;
  --color-accent: #2a7f7f;
  --color-accent-hover: #237070;
  --color-text: #2c2c2c;
  --color-text-secondary: #5a5a5a;
  --color-card-bg: #ffffff;
  --color-border: rgba(0, 0, 0, 0.08);
  --color-nav-bg: rgba(248, 247, 244, 0.92);

  --font-heading: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Source Sans 3', 'Source Sans Pro', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --text-base: 18px;
  --text-sm: 0.875rem;
  --text-lg: 1.125rem;
  --text-xl: 1.35rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: 3rem;
  --text-5xl: 3.75rem;

  --leading-tight: 1.2;
  --leading-normal: 1.65;
  --leading-relaxed: 1.75;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  --max-width: 750px;
  --max-width-narrow: 680px;
  --nav-height: 64px;
  --radius: 4px;
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.04);
  --transition: 0.3s ease;
}

/* ============================================
   Cursor Trace Canvas
   ============================================ */
#cursor-trace {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 0;
  pointer-events: none;
}

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

html {
  font-size: var(--text-base);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 2rem);
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

ul, ol {
  list-style: none;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: var(--leading-tight);
  color: var(--color-primary);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-3xl); margin-bottom: var(--space-lg); }
h3 { font-size: var(--text-2xl); margin-bottom: var(--space-sm); }
h4 { font-size: var(--text-xl); margin-bottom: var(--space-xs); }

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

p:last-child {
  margin-bottom: 0;
}

code, .mono {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

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

.container--narrow {
  max-width: var(--max-width-narrow);
}

main {
  position: relative;
  z-index: 1;
}

section {
  padding: var(--space-2xl) 0;
}

/* ============================================
   Navigation
   ============================================ */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--color-nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
}

.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 960px;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
}

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

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

.nav-links a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  position: relative;
  padding-bottom: 2px;
  transition: color var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width var(--transition);
}

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

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  color: var(--color-primary);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle span + span {
  margin-top: 6px;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) 0 var(--space-2xl);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
}

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

.hero h1 {
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.hero-hook {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 500;
  font-style: italic;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-md);
  line-height: 1.4;
}

.hero-tagline {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 540px;
  margin: 0 auto;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  opacity: 0.6;
  animation: gentle-bounce 2.5s ease-in-out infinite;
}

.scroll-indicator svg {
  width: 20px;
  height: 20px;
}

@keyframes gentle-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ============================================
   About
   ============================================ */
.about-content {
  position: relative;
}

.about-headshot {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  float: right;
  margin: 0 0 var(--space-md) var(--space-lg);
  border: 3px solid var(--color-border);
}

.about p {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
}

.about p + p {
  margin-top: var(--space-md);
}

/* ============================================
   Focus Areas
   ============================================ */
.focus-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.focus-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}

.focus-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08), 0 8px 24px rgba(0, 0, 0, 0.06);
}

.focus-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
}

.focus-card p {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: var(--leading-normal);
}

/* ============================================
   Writing
   ============================================ */
.writing-list {
  margin-top: var(--space-lg);
}

.writing-item {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

.writing-item:first-child {
  padding-top: 0;
}

.writing-item:last-child {
  border-bottom: none;
}

.writing-date {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
  display: block;
}

.writing-item h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-xs);
}

.writing-item h3 a {
  color: var(--color-primary);
  text-decoration: none;
}

.writing-item h3 a:hover {
  color: var(--color-accent);
}

.writing-excerpt {
  color: var(--color-text-secondary);
  font-size: 1rem;
  margin-bottom: var(--space-sm);
}

.read-more {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.view-all {
  display: inline-block;
  margin-top: var(--space-lg);
  font-weight: 600;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================
   Credentials
   ============================================ */
.credentials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
}

.credential-group h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
}

.credential-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
}

.credential-item + .credential-item {
  border-top: 1px solid var(--color-border);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
}

.status-dot--earned {
  background: var(--color-accent);
}

.status-dot--progress {
  border: 2px solid var(--color-accent);
  background: transparent;
}

.status-dot--upcoming {
  border: 2px solid var(--color-text-secondary);
  background: transparent;
  border-style: dashed;
}

.credential-info {
  flex: 1;
}

.credential-name {
  font-weight: 600;
  color: var(--color-primary);
}

.credential-detail {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.credential-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  background: rgba(42, 127, 127, 0.08);
  padding: 2px 8px;
  border-radius: 3px;
  margin-left: var(--space-xs);
}

/* ============================================
   Contact
   ============================================ */
.contact {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.contact p {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto var(--space-lg);
  line-height: var(--leading-relaxed);
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.contact-link {
  font-weight: 600;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-sm) var(--space-md);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-primary);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.contact-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(42, 127, 127, 0.04);
}

.contact-closing {
  font-style: italic;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

/* ============================================
   Scroll Animations
   ============================================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* staggered delays */
.animate-on-scroll[data-delay="1"] { transition-delay: 0.1s; }
.animate-on-scroll[data-delay="2"] { transition-delay: 0.2s; }
.animate-on-scroll[data-delay="3"] { transition-delay: 0.3s; }
.animate-on-scroll[data-delay="4"] { transition-delay: 0.4s; }

/* ============================================
   Blog Page
   ============================================ */
.page-header {
  padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-xl);
  text-align: center;
}

.page-header h1 {
  font-size: var(--text-4xl);
}

.blog-list {
  padding-bottom: var(--space-3xl);
}

/* ============================================
   Post Template / Article
   ============================================ */
.post-header {
  padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-lg);
}

.post-back {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
  color: var(--color-text-secondary);
}

.post-back:hover {
  color: var(--color-accent);
}

.post-meta {
  display: flex;
  gap: var(--space-md);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: var(--space-md);
}

.article-content {
  padding-bottom: var(--space-3xl);
}

.article-content h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  font-size: var(--text-2xl);
}

.article-content h3 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  font-size: var(--text-xl);
}

.article-content p {
  margin-bottom: var(--space-md);
  line-height: var(--leading-relaxed);
}

.article-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding: var(--space-sm) var(--space-md);
  margin: var(--space-lg) 0;
  color: var(--color-text-secondary);
  font-style: italic;
  font-size: var(--text-lg);
  background: rgba(42, 127, 127, 0.03);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.article-content blockquote p {
  margin-bottom: 0;
}

.article-content pre {
  background: var(--color-primary);
  color: #e0e0e0;
  padding: var(--space-md);
  border-radius: var(--radius);
  overflow-x: auto;
  margin: var(--space-lg) 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.5;
}

.article-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: rgba(0, 0, 0, 0.05);
  padding: 2px 6px;
  border-radius: 3px;
}

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

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

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  margin-bottom: var(--space-xs);
  line-height: var(--leading-normal);
}

/* ============================================
   Responsive — Tablet (768px)
   ============================================ */
@media (min-width: 768px) {
  .focus-grid {
    grid-template-columns: 1fr 1fr;
  }

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

/* ============================================
   Responsive — Mobile (max 767px)
   ============================================ */
@media (max-width: 767px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
    --text-2xl: 1.4rem;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-direction: column;
    padding: var(--space-md);
    gap: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle {
    display: flex;
    flex-direction: column;
  }

  .hero {
    min-height: 85vh;
    padding: calc(var(--nav-height) + var(--space-xl)) 0 var(--space-xl);
  }

  section {
    padding: var(--space-xl) 0;
  }

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

  .contact-link {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }

  .about-headshot {
    float: none;
    display: block;
    margin: 0 auto var(--space-md);
    width: 120px;
    height: 120px;
  }
}