/*
Theme Name: Graffiti Portfolio
Theme URI: https://example.com
Author: Sarah Sutherland
Author URI: https://example.com
Description: A modern, minimal custom WordPress theme for graffiti artist portfolio and print shop. Features custom post types for artworks and prints, client-side filtering, and keyboard-accessible lightbox gallery.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: graffiti-portfolio
Tags: portfolio, art, custom-post-types, grid-layout, accessibility-ready
*/

/* ===================================
   CSS Variables & Design Tokens
   =================================== */
:root {
  /* Colors */
  --color-onyx: #0E0E10;
  --color-off-white: #F6F6F7;
  --color-graphite: #1E1E22;
  --color-neon-coral: #FF4E64;
  --color-electric-tangerine: #FF7A00;
  --color-neon-teal: #00FFC8;
  
  /* Typography */
  --font-heading: 'Archivo Black', 'Bebas Neue', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Container */
  --container-max: 1400px;
  --container-padding: var(--space-lg);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--color-onyx);
  color: var(--color-off-white);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Skip to content link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-neon-coral);
  color: var(--color-onyx);
  padding: var(--space-sm) var(--space-md);
  text-decoration: none;
  font-weight: 600;
  z-index: 10000;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  top: 0;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-off-white);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 2rem);
}

h5 {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
}

h6 {
  font-size: 1.125rem;
}

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

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

a:hover,
a:focus {
  color: var(--color-neon-coral);
  outline: 2px solid transparent;
}

a:focus-visible {
  outline: 2px solid var(--color-neon-coral);
  outline-offset: 4px;
  border-radius: 2px;
}

/* ===================================
   Layout & Container
   =================================== */
.site {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-content {
  flex: 1;
  padding-top: 80px; /* Account for fixed header */
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
}

.container-wide {
  max-width: 1800px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
}

.section {
  padding: var(--space-3xl) 0;
}

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

/* ===================================
   Header
   =================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(14, 14, 16, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid rgba(246, 246, 247, 0.1);
  transition: transform var(--transition-base);
}

.site-header.header-hidden {
  transform: translateY(-100%);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) 0;
}

.site-branding {
  display: flex;
  align-items: center;
}

.site-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.site-title a {
  color: var(--color-off-white);
  transition: color var(--transition-fast);
}

.site-title a:hover {
  color: var(--color-neon-coral);
}

/* Main Navigation */
.main-navigation {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.main-navigation ul {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  margin: 0;
}

.main-navigation a {
  color: var(--color-off-white);
  font-weight: 500;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-xs) 0;
  position: relative;
}

.main-navigation a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-neon-coral);
  transition: width var(--transition-base);
}

.main-navigation a:hover::after,
.main-navigation a:focus::after,
.main-navigation .current-menu-item a::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: transparent;
  border: 2px solid var(--color-off-white);
  color: var(--color-off-white);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.menu-toggle:hover,
.menu-toggle:focus {
  background: var(--color-neon-coral);
  border-color: var(--color-neon-coral);
  color: var(--color-onyx);
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  
  .main-navigation {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-onyx);
    border-top: 1px solid rgba(246, 246, 247, 0.1);
    padding: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-base);
  }
  
  .main-navigation.toggled {
    transform: translateX(0);
  }
  
  .main-navigation ul {
    flex-direction: column;
    gap: var(--space-md);
  }
}

/* ===================================
   Footer
   =================================== */
.site-footer {
  background: var(--color-graphite);
  border-top: 1px solid rgba(246, 246, 247, 0.1);
  padding: var(--space-3xl) 0 var(--space-xl);
  margin-top: var(--space-3xl);
}

.footer-widgets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-widget-area h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
  color: var(--color-neon-teal);
}

.footer-widget-area ul {
  list-style: none;
}

.footer-widget-area li {
  margin-bottom: var(--space-sm);
}

.footer-bottom {
  border-top: 1px solid rgba(246, 246, 247, 0.1);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-navigation ul {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.footer-navigation a {
  color: var(--color-off-white);
  font-size: 0.9rem;
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.footer-navigation a:hover {
  opacity: 1;
}

.copyright {
  font-size: 0.9rem;
  opacity: 0.7;
}

/* ===================================
   Buttons
   =================================== */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-heading);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  text-align: center;
  font-weight: 700;
}

.btn-primary {
  background: var(--color-neon-coral);
  color: var(--color-onyx);
  border-color: var(--color-neon-coral);
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--color-electric-tangerine);
  border-color: var(--color-electric-tangerine);
  color: var(--color-onyx);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 78, 100, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--color-off-white);
  border-color: var(--color-off-white);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--color-off-white);
  color: var(--color-onyx);
}

.btn-ghost {
  background: transparent;
  color: var(--color-neon-teal);
  border-color: var(--color-neon-teal);
}

.btn-ghost:hover,
.btn-ghost:focus {
  background: var(--color-neon-teal);
  color: var(--color-onyx);
}

/* ===================================
   Cards
   =================================== */
.card {
  background: var(--color-graphite);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card-image {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
  background: var(--color-onyx);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-content {
  padding: var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.card-title a {
  color: var(--color-off-white);
}

.card-title a:hover {
  color: var(--color-neon-coral);
}

.card-meta {
  font-size: 0.875rem;
  color: var(--color-neon-teal);
  margin-bottom: var(--space-sm);
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.card-excerpt {
  flex: 1;
  margin-bottom: var(--space-md);
}

/* ===================================
   Grid Layouts
   =================================== */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

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

/* ===================================
   Portfolio Grid (Masonry Style)
   =================================== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.portfolio-item {
  position: relative;
}

/* ===================================
   Filters
   =================================== */
.filters-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.filter-buttons {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--space-xs) var(--space-md);
  background: var(--color-graphite);
  color: var(--color-off-white);
  border: 2px solid transparent;
  border-radius: var(--radius-xl);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.filter-btn:hover,
.filter-btn:focus {
  border-color: var(--color-neon-teal);
  color: var(--color-neon-teal);
}

.filter-btn.active {
  background: var(--color-neon-coral);
  color: var(--color-onyx);
  border-color: var(--color-neon-coral);
}

.search-filter {
  flex: 1;
  max-width: 300px;
}

.search-filter input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-graphite);
  border: 2px solid transparent;
  border-radius: var(--radius-xl);
  color: var(--color-off-white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast);
}

.search-filter input:focus {
  outline: none;
  border-color: var(--color-neon-teal);
}

.search-filter input::placeholder {
  color: rgba(246, 246, 247, 0.5);
}

/* ===================================
   Load More Button
   =================================== */
.load-more-wrap {
  text-align: center;
  margin-top: var(--space-xl);
}

/* ===================================
   Lightbox Gallery
   =================================== */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(14, 14, 16, 0.98);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
}

.lightbox-image {
  max-width: 100%;
  max-height: 90vh;
  display: block;
  object-fit: contain;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: rgba(246, 246, 247, 0.1);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(246, 246, 247, 0.2);
  color: var(--color-off-white);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-close:hover,
.lightbox-close:focus,
.lightbox-prev:hover,
.lightbox-prev:focus,
.lightbox-next:hover,
.lightbox-next:focus {
  background: var(--color-neon-coral);
  border-color: var(--color-neon-coral);
  transform: scale(1.1);
}

.lightbox-close {
  top: var(--space-lg);
  right: var(--space-lg);
}

.lightbox-prev {
  left: var(--space-lg);
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-next {
  right: var(--space-lg);
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(14, 14, 16, 0.9);
  padding: var(--space-md);
  text-align: center;
  font-size: 0.9rem;
}

/* ===================================
   Single Artwork Layout
   =================================== */
.artwork-layout {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.artwork-gallery {
  display: grid;
  gap: var(--space-md);
}

.artwork-sidebar {
  position: sticky;
  top: calc(80px + var(--space-lg));
  height: fit-content;
  background: var(--color-graphite);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
}

.artwork-details dt {
  font-weight: 600;
  color: var(--color-neon-teal);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.artwork-details dd {
  margin-bottom: var(--space-md);
  margin-left: 0;
}

@media (max-width: 1024px) {
  .artwork-layout {
    grid-template-columns: 1fr;
  }
  
  .artwork-sidebar {
    position: static;
  }
}

/* ===================================
   Post Navigation
   =================================== */
.post-navigation {
  display: flex;
  justify-content: space-between;
  gap: var(--space-lg);
  margin: var(--space-3xl) 0;
  padding: var(--space-lg) 0;
  border-top: 1px solid rgba(246, 246, 247, 0.1);
  border-bottom: 1px solid rgba(246, 246, 247, 0.1);
}

.nav-previous,
.nav-next {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.nav-next {
  text-align: right;
  align-items: flex-end;
}

.post-navigation .nav-subtitle {
  font-size: 0.85rem;
  color: var(--color-neon-teal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.post-navigation .nav-title {
  font-size: 1.25rem;
  font-family: var(--font-heading);
  color: var(--color-off-white);
  transition: color var(--transition-fast);
}

.post-navigation a:hover .nav-title {
  color: var(--color-neon-coral);
}

/* ===================================
   Blog & Archive
   =================================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-xl);
}

.entry-header {
  margin-bottom: var(--space-lg);
}

.entry-title {
  margin-bottom: var(--space-sm);
}

.entry-meta {
  font-size: 0.9rem;
  color: var(--color-neon-teal);
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

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

.entry-footer {
  padding-top: var(--space-md);
  border-top: 1px solid rgba(246, 246, 247, 0.1);
  font-size: 0.9rem;
}

/* ===================================
   Pagination
   =================================== */
.pagination {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin: var(--space-3xl) 0;
}

.pagination .page-numbers {
  padding: var(--space-sm) var(--space-md);
  background: var(--color-graphite);
  color: var(--color-off-white);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  min-width: 44px;
  text-align: center;
}

.pagination .page-numbers:hover,
.pagination .page-numbers.current {
  background: var(--color-neon-coral);
  color: var(--color-onyx);
}

/* ===================================
   Forms
   =================================== */
input[type="text"],
input[type="email"],
input[type="url"],
input[type="tel"],
input[type="search"],
textarea,
select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-graphite);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--color-off-white);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="tel"]:focus,
input[type="search"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-neon-teal);
}

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

label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--color-off-white);
}

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

/* ===================================
   WordPress Core Classes
   =================================== */
.alignleft {
  float: left;
  margin-right: var(--space-lg);
  margin-bottom: var(--space-md);
}

.alignright {
  float: right;
  margin-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

.aligncenter {
  display: block;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-md);
}

.wp-caption {
  max-width: 100%;
}

.wp-caption-text {
  font-size: 0.875rem;
  color: rgba(246, 246, 247, 0.7);
  padding-top: var(--space-xs);
  text-align: center;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-sm);
}

.sticky {
  /* Styles for sticky posts */
}

.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
  word-wrap: normal !important;
}

.screen-reader-text:focus {
  background-color: var(--color-graphite);
  border-radius: var(--radius-sm);
  box-shadow: 0 0 2px 2px rgba(0, 0, 0, 0.6);
  clip: auto !important;
  color: var(--color-off-white);
  display: block;
  font-size: 0.875rem;
  font-weight: bold;
  height: auto;
  left: 5px;
  line-height: normal;
  padding: 15px 23px 14px;
  text-decoration: none;
  top: 5px;
  width: auto;
  z-index: 100000;
}

/* ===================================
   404 Page
   =================================== */
.error-404 {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.error-404 h1 {
  font-size: clamp(4rem, 10vw, 8rem);
  color: var(--color-neon-coral);
  margin-bottom: var(--space-md);
}

/* ===================================
   Utility Classes
   =================================== */
.text-center {
  text-align: center;
}

.text-accent {
  color: var(--color-neon-coral);
}

.mb-0 { margin-bottom: 0; }
.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); }

.mt-0 { margin-top: 0; }
.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); }

/* ===================================
   Responsive Images
   =================================== */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===================================
   Print Styles
   =================================== */
@media print {
  .site-header,
  .site-footer,
  .filters-bar,
  .post-navigation {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
}