/* ============================================================================
   Design System: CSS Variables
   ============================================================================ */

:root {
  /* Brand Colors */
  --color-primary: #14283C;
  --color-secondary: #283C50;

  /* Accents */
  --color-accent-amber: #E89B2C;
  --color-accent-copper: #A65E3B;
  --color-accent-teal: #3FB8AF;

  /* Neutrals */
  --color-graphite: #282828;
  --color-graphite-soft: #3C3C3C;
  --color-offwhite: #F2F2F2;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.75rem;
  --font-size-3xl: 2.25rem;

  /* Line heights */
  --line-height-tight: 1.2;
  --line-height-normal: 1.6;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
}

/* ============================================================================
   Accessibility Utilities
   ============================================================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ============================================================================
   Global Styles
   ============================================================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-graphite);
  background-color: #ffffff;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

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

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

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

a:focus {
  outline: 2px solid var(--color-accent-teal);
  outline-offset: 2px;
}

/* ============================================================================
   Navigation
   ============================================================================ */

.navbar {
  background-color: var(--color-primary);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  position: relative;
}

.navbar-logo img {
  height: 40px;
  width: auto;
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.navbar-menu a {
  color: #ffffff;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.navbar-menu a:hover {
  color: var(--color-accent-amber);
}

.navbar-menu a:focus {
  outline: 2px solid var(--color-accent-teal);
  outline-offset: 2px;
  border-radius: 2px;
}

.navbar-burger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.navbar-burger span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: #ffffff;
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.navbar-burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.navbar-burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.navbar-burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

.navbar-burger:focus {
  outline: 2px solid var(--color-accent-teal);
  outline-offset: 2px;
  border-radius: 2px;
}

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

  .navbar-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background-color: var(--color-primary);
    padding: var(--spacing-md) 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  }

  .navbar-menu.is-open {
    display: flex;
  }

  .navbar-menu li {
    width: 100%;
  }

  .navbar-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
  }
}

/* ============================================================================
   Footer
   ============================================================================ */

.site-footer {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: var(--spacing-2xl) var(--spacing-md);
  margin-top: var(--spacing-3xl);
  text-align: center;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

.site-footer p {
  margin-bottom: 0;
  font-size: var(--font-size-sm);
}

/* ============================================================================
   Main Content
   ============================================================================ */

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-md);
  display: flex;
  flex-direction: column;
}

/* ============================================================================
   Landing Page
   ============================================================================ */

.landing-hero {
  display: flex;
  justify-content: center;
  align-items: center;
  flex: 1;
}

.logo-container {
  text-align: center;
}

.landing-tagline {
  margin-top: var(--spacing-lg);
  font-size: var(--font-size-lg);
  color: var(--color-graphite-soft);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .landing-tagline {
    font-size: 3.8vw;
  }
}

.logo-responsive {
  width: clamp(280px, 65vw, 900px);
  height: auto;
  display: block;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .logo-responsive {
    width: clamp(200px, 80vw, 480px);
  }
}

/* ============================================================================
   Page Styles
   ============================================================================ */

.page-header {
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-graphite-soft);
}

.page-header h1 {
  margin-bottom: 0;
}

.page-body {
  line-height: var(--line-height-normal);
}

.page-body p {
  max-width: 65ch;
}

/* ============================================================================
   Note and Post Pages
   ============================================================================ */

.note-page,
.post-page {
  max-width: 65ch;
}

.note-header,
.post-header {
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--color-secondary);
}

.note-header h1,
.post-header h1 {
  margin-bottom: var(--spacing-md);
}

.note-meta,
.post-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-graphite-soft);
}

.note-meta time,
.post-meta time {
  display: flex;
}

.note-meta .tags,
.post-meta .tags {
  display: flex;
}

.note-body,
.post-body {
  line-height: var(--line-height-normal);
}

.note-body h2,
.post-body h2 {
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
}

.note-body code,
.post-body code {
  background-color: var(--color-offwhite);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: "Courier New", Courier, monospace;
  font-size: var(--font-size-sm);
}

.note-body pre,
.post-body pre {
  background-color: var(--color-graphite);
  color: #ffffff;
  padding: var(--spacing-lg);
  border-radius: 4px;
  overflow-x: auto;
  margin: var(--spacing-lg) 0;
}

.note-body pre code,
.post-body pre code {
  background-color: transparent;
  padding: 0;
  color: #ffffff;
}

.note-body ul,
.post-body ul,
.note-body ol,
.post-body ol {
  padding-left: 1.75em;
  margin: var(--spacing-md) 0;
}

.note-body li,
.post-body li {
  margin-bottom: var(--spacing-xs);
}

.note-body blockquote,
.post-body blockquote {
  border-left: 4px solid var(--color-accent-amber);
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--color-graphite-soft);
  font-style: italic;
}

.note-body blockquote p,
.post-body blockquote p {
  margin: 0;
}

/* ============================================================================
   Tag List
   ============================================================================ */

.tag-list {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  gap: var(--spacing-sm);
}

.tag-link {
  display: inline-block;
  padding: 4px 12px;
  background-color: var(--color-secondary);
  color: #ffffff;
  border-radius: 20px;
  font-size: var(--font-size-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.tag-link:hover {
  background-color: var(--color-accent-amber);
  color: var(--color-primary);
}

.tag-link:focus {
  outline: 2px solid var(--color-accent-teal);
  outline-offset: 2px;
}

/* ============================================================================
   Cards (List Items)
   ============================================================================ */

.card {
  background-color: var(--color-offwhite);
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.card-header {
  margin-bottom: var(--spacing-md);
}

.card-title {
  margin-bottom: var(--spacing-sm);
}

.card-title a {
  color: var(--color-primary);
  text-decoration: none;
}

.card-title a:hover {
  color: var(--color-accent-amber);
}

.card-title a:focus {
  outline: 2px solid var(--color-accent-teal);
  outline-offset: 2px;
}

.card-date {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-graphite-soft);
  margin-top: var(--spacing-sm);
}

.card-body {
  margin-bottom: var(--spacing-md);
}

.card-summary {
  margin-bottom: 0;
  color: var(--color-graphite);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
}

.card-footer {
  padding-top: var(--spacing-md);
  border-top: 1px solid #e0e0e0;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.card-tags .tag-list {
  margin: 0;
}

.card-tags .tag-link {
  padding: 2px 8px;
  font-size: var(--font-size-sm);
}

/* ============================================================================
   Collection Listings
   ============================================================================ */

.collection-listing {
  max-width: 900px;
}

.collection-header {
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--color-secondary);
}

.collection-header h1 {
  margin-bottom: var(--spacing-md);
}

.collection-controls {
  margin-bottom: var(--spacing-2xl);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  align-items: center;
}

.search-container {
  flex: 1;
  min-width: 250px;
}

.search-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid #d0d0d0;
  border-radius: 4px;
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-accent-teal);
  box-shadow: 0 0 0 2px rgba(63, 184, 175, 0.1);
}

.filter-info {
  font-size: var(--font-size-sm);
  color: var(--color-graphite-soft);
}

.items-list {
  list-style: none;
}

.items-list .card {
  margin-bottom: var(--spacing-lg);
}

.no-results {
  padding: var(--spacing-2xl);
  text-align: center;
  color: var(--color-graphite-soft);
}

.no-results p {
  margin-bottom: 0;
}

/* ============================================================================
   About Page
   ============================================================================ */

.about-content {
  display: flex;
  gap: var(--spacing-2xl);
  align-items: flex-start;
}

.about-image {
  flex-shrink: 0;
}

.about-image img {
  width: 220px;
  height: auto;
  border-radius: 8px;
  display: block;
}

.about-text {
  flex: 1;
  max-width: 65ch;
}

@media (max-width: 768px) {
  .about-content {
    flex-direction: column;
    align-items: center;
  }

  .about-image {
    width: 100%;
  }

  .about-image img {
    width: 100%;
    max-width: 300px;
    height: auto;
  }

  .about-text {
    width: 100%;
  }
}

/* ============================================================================
   Projects Page
   ============================================================================ */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-2xl);
}

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

.project-card {
  background-color: var(--color-offwhite);
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.project-card h3 {
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.project-description {
  flex: 1;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
}

.project-description p {
  margin-bottom: var(--spacing-sm);
}

.project-description p:last-child {
  margin-bottom: 0;
}

.project-description ul,
.project-description ol {
  padding-left: 1.5em;
  margin: var(--spacing-sm) 0;
}

.project-description li {
  margin-bottom: var(--spacing-xs);
}

.project-link {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-accent-amber);
  color: var(--color-primary);
  border-radius: 4px;
  font-weight: 500;
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.project-link:hover {
  background-color: var(--color-accent-copper);
  color: #ffffff;
}

.project-link:focus {
  outline: 2px solid var(--color-accent-teal);
  outline-offset: 2px;
}

/* ============================================================================
   Engagements Page
   ============================================================================ */

.engagements-form {
  max-width: 600px;
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--color-primary);
  font-size: var(--font-size-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid #d0d0d0;
  border-radius: 4px;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent-teal);
  box-shadow: 0 0 0 2px rgba(63, 184, 175, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.form-submit {
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-accent-amber);
  color: var(--color-primary);
  border: none;
  border-radius: 4px;
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.form-submit:hover {
  background-color: var(--color-accent-copper);
  color: #ffffff;
}

.form-submit:focus {
  outline: 2px solid var(--color-accent-teal);
  outline-offset: 2px;
}

.form-message {
  padding: var(--spacing-md);
  border-radius: 4px;
  margin-bottom: var(--spacing-lg);
  display: none;
}

.form-message.success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
  display: block;
}

.form-message.error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
  display: block;
}

.form-message.pending {
  background-color: #e7f3ff;
  color: #0c5460;
  border: 1px solid #bee5eb;
  display: block;
}

.email-fallback {
  margin-top: var(--spacing-xl);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-graphite-soft);
}

.email-fallback a {
  color: var(--color-accent-amber);
  text-decoration: underline;
}

/* ============================================================================
   Responsive Media
   ============================================================================ */

@media (max-width: 768px) {
  h1 {
    font-size: var(--font-size-2xl);
  }

  h2 {
    font-size: var(--font-size-xl);
  }

  main {
    padding: var(--spacing-xl) var(--spacing-md);
  }

  .page-header,
  .note-header,
  .post-header {
    margin-bottom: var(--spacing-xl);
  }
}

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

@media print {
  .navbar,
  .site-footer {
    display: none;
  }

  a {
    color: var(--color-primary);
    text-decoration: underline;
  }
}