/*
  Green Shades Coffee Co — Blog Styles
  Mobile-first, performance-optimized blog design
  Consistent with core.css design patterns
*/

/* Font variable overrides to ensure consistent Google Fonts loading */
:root {
  --font-serif: "EB Garamond", ui-serif, Georgia, serif;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
}

/* ========================================
   BLOG HERO SECTION (using hero pattern from core.css)
   ======================================== */
.blog-hero {
  /* Use existing hero styles from core.css */
}

/* ========================================
   BLOG SEARCH
   ======================================== */
.blog-search-container {
  max-width: 500px;
  margin: 0 auto;
}

.blog-search-input {
  width: 100%;
  /* Uses .input styles from core.css */
}

/* ========================================
   BLOG FILTERS
   ======================================== */
.blog-filters-container {
  margin-top: var(--space-6);
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  margin-bottom: var(--space-6);
}

.blog-filter {
  padding: var(--space-2) var(--space-4);
  font-size: var(--step--1);
  font-weight: 500;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-white);
  color: var(--color-text-700);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.blog-filter:hover {
  border-color: var(--color-green-400);
  color: var(--color-green-600);
}

.blog-filter[aria-pressed="true"] {
  background: var(--color-green-600);
  border-color: var(--color-green-600);
  color: var(--color-white);
}

/* ========================================
   BLOG GRID CONTAINER
   ======================================== */
#blogGrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  width: 100%;
}

/* ========================================
   BLOG CARDS (extending card pattern from core.css)
   ======================================== */
.blog-card {
  /* Inherits from .card in core.css */
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: all 0.3s ease;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.blog-card__image {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: var(--color-cream-50);
}

.blog-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.blog-card__content {
  /* Inherits from .card__body in core.css */
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  font-size: var(--step--1);
  color: var(--color-text-500);
}

.blog-card__date {
  font-weight: 500;
}

.blog-card__reading-time {
  padding: var(--space-1) var(--space-2);
  background: var(--color-cream-50);
  border-radius: var(--radius-sm);
  font-size: var(--step--1);
}

.blog-card__title {
  /* Inherits from .card__title in core.css */
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.blog-card__link {
  color: var(--color-text-900);
  text-decoration: none;
  transition: color 0.2s ease;
}

.blog-card__link:hover {
  color: var(--color-green-600);
}

.blog-card__excerpt {
  color: var(--color-text-700);
  line-height: 1.6;
  margin-bottom: var(--space-3);
  flex-grow: 1;
}

.blog-card__author {
  font-size: var(--step--1);
  color: var(--color-text-500);
  font-weight: 500;
  margin-bottom: var(--space-3);
}

.blog-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
}

.blog-tag {
  /* Similar to .badge in core.css */
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--color-green-600);
  background: color-mix(in srgb, var(--color-green-600) 10%, white);
  border-radius: var(--radius-sm);
  border: 1px solid color-mix(in srgb, var(--color-green-600) 20%, transparent);
}

/* ========================================
   BLOG PAGINATION
   ======================================== */
.blog-pagination-container {
  display: flex;
  justify-content: center;
  margin-top: var(--space-8);
}

.pagination-controls {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.pagination-btn {
  /* Inherits from .btn .btn--outline in core.css */
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination-btn:disabled:hover {
  border-color: var(--color-border);
  color: var(--color-text-700);
  background: var(--color-white);
}

/* ========================================
   BLOG NEWSLETTER CTA
   ======================================== */
.blog-newsletter-form {
  max-width: 400px;
  margin: 0 auto;
}

/* ========================================
   LOADING & ERROR STATES
   ======================================== */
.loading {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-8);
  color: var(--color-text-500);
  font-size: var(--step-1);
}

.no-articles {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-8);
  color: var(--color-text-500);
  font-size: var(--step-1);
}

.error {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-8);
  color: var(--color-text-700);
}

.error p {
  margin-bottom: var(--space-2);
}

.error small {
  color: var(--color-text-500);
  font-size: var(--step--1);
}

/* ========================================
   RESPONSIVE DESIGN - MOBILE FIRST
   ======================================== */

/* Mobile (320px+) - Base styles above */

/* Small Mobile (480px+) */
@media (min-width: 480px) {
  .blog-search-container {
    max-width: 600px;
  }
  
  .blog-card__image {
    height: 220px;
  }
}

/* Tablet (768px+) */
@media (min-width: 768px) {
  #blogGrid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .blog-search-container {
    max-width: 700px;
  }
  
  .blog-filters {
    justify-content: flex-start;
  }
  
  .blog-card__image {
    height: 250px;
  }
  
  .blog-newsletter-form {
    display: flex;
    align-items: flex-end;
    gap: var(--space-3);
    max-width: 500px;
  }
  
  .blog-newsletter-form .field {
    flex: 1;
  }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  #blogGrid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .blog-search-container {
    max-width: 800px;
  }
  
  .blog-card__image {
    height: 280px;
  }
  
  .blog-card__content {
    padding: var(--space-6);
  }
  
  .blog-card__title {
    font-size: var(--step-2);
  }
  
  .blog-card__excerpt {
    font-size: var(--step-0);
  }
}

/* Large Desktop (1200px+) */
@media (min-width: 1200px) {
  .blog-card__image {
    height: 300px;
  }
  
  .blog-card__title {
    font-size: var(--step-3);
  }
  
  .blog-card__excerpt {
    font-size: var(--step-1);
  }
}

/* Extra Large Desktop (1440px+) */
@media (min-width: 1440px) {
  .container {
    max-width: 1400px;
  }
  
  #blogGrid {
    gap: var(--space-8);
  }
  
  .blog-card__image {
    height: 320px;
  }
  
  .blog-search-container {
    max-width: 900px;
  }
}

/* ========================================
   4K DISPLAY OPTIMIZATIONS (2560px+)
   ======================================== */
@media (min-width: 2560px) {
  .container {
    max-width: 1800px;
    padding-inline: var(--space-8);
  }

  /* Blog grid 4K optimization */
  #blogGrid {
    gap: var(--space-10);
  }

  /* Blog search 4K optimization */
  .blog-search-container {
    max-width: 1000px;
  }

  .blog-search-input {
    padding: var(--space-4) var(--space-5);
    font-size: var(--step-1);
    border-radius: var(--radius-lg);
  }

  /* Blog filters 4K optimization */
  .blog-filters {
    gap: var(--space-3);
    margin-bottom: var(--space-10);
  }

  .blog-filter {
    padding: var(--space-3) var(--space-5);
    font-size: var(--step-0);
    border-radius: 999px;
  }

  /* Blog cards 4K optimization */
  .blog-card {
    border-radius: var(--radius-lg);
  }

  .blog-card:hover {
    transform: translateY(-6px);
  }

  .blog-card__image {
    height: 350px;
  }

  .blog-card__content {
    padding: var(--space-8);
  }

  .blog-card__meta {
    gap: var(--space-4);
    margin-bottom: var(--space-4);
    font-size: var(--step-0);
  }

  .blog-card__reading-time {
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--step--1);
  }

  .blog-card__title {
    font-size: var(--step-3);
    margin-bottom: var(--space-4);
    line-height: 1.25;
  }

  .blog-card__excerpt {
    font-size: var(--step-1);
    line-height: 1.7;
    margin-bottom: var(--space-4);
  }

  .blog-card__author {
    font-size: var(--step-0);
    margin-bottom: var(--space-4);
  }

  .blog-card__tags {
    gap: var(--space-3);
  }

  .blog-tag {
    padding: var(--space-2) var(--space-3);
    font-size: var(--step--1);
    border-radius: var(--radius-md);
  }

  /* Pagination 4K optimization */
  .blog-pagination-container {
    margin-top: var(--space-12);
  }

  .pagination-controls {
    gap: var(--space-4);
  }

  .pagination-btn {
    padding: var(--space-4) var(--space-5);
    font-size: var(--step-1);
    border-radius: var(--radius-lg);
  }

  /* Newsletter CTA 4K optimization */
  .blog-newsletter-form {
    max-width: 600px;
  }

  .blog-newsletter-form .input {
    padding: var(--space-4) var(--space-5);
    font-size: var(--step-1);
    border-radius: var(--radius-lg);
  }

  /* Section spacing 4K optimization */
  .section {
    padding-block: var(--space-16);
  }

  .section--tight {
    padding-block: var(--space-12);
  }
}

/* Ultra-wide 4K (3440px+) */
@media (min-width: 3440px) {
  .container {
    max-width: 2000px;
    padding-inline: var(--space-12);
  }

  #blogGrid {
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-12);
  }

  .blog-card__image {
    height: 400px;
  }

  .blog-card__content {
    padding: var(--space-10);
  }

  .blog-card__title {
    font-size: var(--step-4);
  }

  .blog-card__excerpt {
    font-size: var(--step-2);
  }
}

/* 8K Display (7680px+) */
@media (min-width: 7680px) {
  .container {
    max-width: 2400px;
    padding-inline: var(--space-16);
  }

  #blogGrid {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-16);
  }

  .blog-card__image {
    height: 450px;
  }

  .blog-card__content {
    padding: var(--space-12);
  }

  .blog-card__title {
    font-size: var(--step-5);
  }

  .blog-card__excerpt {
    font-size: var(--step-3);
  }
}

/* ========================================
   ACCESSIBILITY & PERFORMANCE
   ======================================== */

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  .blog-card,
  .blog-card__image img,
  .blog-filter,
  .pagination-btn {
    transition: none;
  }
  
  .blog-card:hover {
    transform: none;
  }
  
  .blog-card:hover .blog-card__image img {
    transform: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .blog-card {
    border: 2px solid var(--color-text-900);
  }
  
  .blog-filter {
    border-width: 2px;
  }
  
  .pagination-btn {
    border-width: 2px;
  }
}

/* Focus indicators */
.blog-card__link:focus,
.blog-filter:focus,
.pagination-btn:focus {
  outline: 2px solid var(--color-green-400);
  outline-offset: 2px;
}

/* ========================================
   BLOG POST PAGE STYLES
   ======================================== */

/* Breadcrumb Navigation */
.breadcrumb {
  margin-bottom: var(--space-4);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: var(--step--1);
}

.breadcrumb__list li:not(:last-child)::after {
  content: "→";
  margin-left: var(--space-2);
  color: var(--color-text-500);
}

.breadcrumb__list a {
  color: var(--color-green-600);
  text-decoration: none;
}

.breadcrumb__list a:hover {
  text-decoration: underline;
}

.breadcrumb__list li[aria-current="page"] {
  color: var(--color-text-500);
  font-weight: 500;
}

/* Blog Post Container */
.blog-post {
  padding-block: var(--space-8);
}

.blog-post__container {
  display: grid;
  gap: var(--space-8);
  max-width: 800px;
  margin: 0 auto;
}

/* Blog Post Header */
.blog-post__header {
  text-align: center;
}

.blog-post__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: var(--step--1);
  color: var(--color-text-500);
}

.blog-post__date {
  font-weight: 500;
}

.blog-post__reading-time {
  padding: var(--space-1) var(--space-2);
  background: var(--color-cream-50);
  border-radius: var(--radius-sm);
  font-size: var(--step--1);
}

.blog-post__title {
  font-size: var(--step-4);
  font-weight: 700;
  color: var(--color-text-900);
  margin-bottom: var(--space-4);
  line-height: 1.2;
  max-width: 20ch;
  margin-inline: auto;
}

.blog-post__author-info {
  margin-bottom: var(--space-4);
}

.blog-post__author {
  font-size: var(--step-0);
  color: var(--color-text-600);
  font-weight: 500;
}

.blog-post__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

/* Blog Post Image */
.blog-post__image {
  margin-bottom: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.blog-post__image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  display: block;
}

/* Blog Post Content */
.blog-post__content {
  /* Inherits from .prose in core.css */
  font-size: var(--step-0);
  line-height: 1.7;
  color: var(--color-text-700);
}

.blog-post__content h2 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
  font-size: var(--step-2);
  color: var(--color-text-900);
}

.blog-post__content h3 {
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
  font-size: var(--step-1);
  color: var(--color-text-900);
}

.blog-post__content p {
  margin-bottom: var(--space-4);
}

.blog-post__content img {
  margin: var(--space-6) 0;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.blog-post__content blockquote {
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-5);
  border-left: 4px solid var(--color-green-400);
  background: var(--color-cream-50);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--color-text-700);
}

.blog-post__content ul,
.blog-post__content ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-5);
}

.blog-post__content li {
  margin-bottom: var(--space-2);
}

/* Blog Post Footer */
.blog-post__footer {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.blog-post__share h3 {
  font-size: var(--step-1);
  margin-bottom: var(--space-4);
  text-align: center;
  color: var(--color-text-900);
}

.share-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}

.share-btn {
  /* Inherits from .btn .btn--outline in core.css */
  font-size: var(--step--1);
  padding: var(--space-2) var(--space-3);
}

/* Blog Post Sidebar */
.blog-post__sidebar {
  margin-top: var(--space-12);
}

.sidebar-section {
  margin-bottom: var(--space-8);
  padding: var(--space-5);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.sidebar-section h3 {
  font-size: var(--step-1);
  color: var(--color-text-900);
  margin-bottom: var(--space-4);
  text-align: center;
}

.related-articles {
  display: grid;
  gap: var(--space-4);
}

.related-article {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  text-decoration: none;
  color: inherit;
}

.related-article:hover {
  border-color: var(--color-green-400);
  box-shadow: var(--shadow-sm);
}

.related-article__image {
  width: 80px;
  height: 60px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.related-article__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.related-article__content {
  flex: 1;
}

.related-article__title {
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--color-text-900);
  line-height: 1.3;
  margin-bottom: var(--space-1);
}

.related-article__date {
  font-size: var(--step--2);
  color: var(--color-text-500);
}

.category-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
}

.category-item {
  padding: var(--space-1) var(--space-3);
  background: var(--color-cream-50);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: var(--step--1);
  color: var(--color-text-700);
  text-decoration: none;
  transition: all 0.2s ease;
}

.category-item:hover {
  border-color: var(--color-green-400);
  color: var(--color-green-600);
}

/* ========================================
   BLOG POST RESPONSIVE DESIGN
   ======================================== */

/* Mobile (320px+) - Base styles above */

/* Small Mobile (480px+) */
@media (min-width: 480px) {
  .blog-post__title {
    font-size: var(--step-5);
    max-width: 16ch;
  }
  
  .share-buttons {
    gap: var(--space-4);
  }
}

/* Tablet (768px+) */
@media (min-width: 768px) {
  .blog-post {
    padding-block: var(--space-12);
  }
  
  .blog-post__container {
    max-width: 900px;
  }
  
  .blog-post__title {
    font-size: var(--step-5);
    max-width: 20ch;
  }
  
  .blog-post__content {
    font-size: var(--step-1);
  }
  
  .breadcrumb__list {
    font-size: var(--step-0);
  }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  .blog-post {
    padding-block: var(--space-16);
  }
  
  .blog-post__container {
    max-width: 1200px;
    grid-template-columns: 1fr 300px;
    gap: var(--space-12);
    align-items: start;
  }
  
  .blog-post__main {
    max-width: 800px;
  }
  
  .blog-post__sidebar {
    margin-top: 0;
    position: sticky;
    top: calc(var(--header-height) + var(--space-8));
  }
  
  .blog-post__title {
    font-size: var(--step-5);
    max-width: 24ch;
  }
  
  .related-articles {
    gap: var(--space-3);
  }
  
  .related-article {
    flex-direction: column;
    text-align: center;
  }
  
  .related-article__image {
    width: 100%;
    height: 120px;
  }
  
  .category-list {
    justify-content: flex-start;
  }
}

/* Large Desktop (1200px+) */
@media (min-width: 1200px) {
  .blog-post__container {
    max-width: 1400px;
    grid-template-columns: 1fr 350px;
    gap: var(--space-16);
  }
  
  .blog-post__title {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
  }
  
  .blog-post__content {
    font-size: var(--step-1);
    line-height: 1.8;
  }
  
  .sidebar-section {
    padding: var(--space-6);
  }
}

/* Extra Large Desktop (1440px+) */
@media (min-width: 1440px) {
  .blog-post__container {
    max-width: 1600px;
  }
  
  .blog-post__title {
    max-width: 20ch;
  }
}

/* ========================================
   4K DISPLAY OPTIMIZATIONS FOR BLOG POST
   ======================================== */
@media (min-width: 2560px) {
  .blog-post {
    padding-block: var(--space-20);
  }
  
  .blog-post__container {
    max-width: 1800px;
    grid-template-columns: 1fr 400px;
    gap: var(--space-20);
  }
  
  .blog-post__title {
    font-size: clamp(2.5rem, 1.7vw, 3rem);
    max-width: 24ch;
  }
  
  .blog-post__content {
    font-size: var(--step-2);
    line-height: 1.8;
  }
  
  .blog-post__meta {
    gap: var(--space-4);
    margin-bottom: var(--space-6);
    font-size: var(--step-0);
  }
  
  .blog-post__reading-time {
    padding: var(--space-2) var(--space-3);
    font-size: var(--step-0);
  }
  
  .sidebar-section {
    padding: var(--space-8);
  }
  
  .sidebar-section h3 {
    font-size: var(--step-2);
    margin-bottom: var(--space-6);
  }
  
  .related-article {
    padding: var(--space-4);
  }
  
  .related-article__image {
    height: 150px;
  }
  
  .related-article__title {
    font-size: var(--step-0);
  }
  
  .share-buttons {
    gap: var(--space-5);
  }
  
  .share-btn {
    padding: var(--space-3) var(--space-4);
    font-size: var(--step-0);
  }
}

/* Ultra-wide 4K (3440px+) */
@media (min-width: 3440px) {
  .blog-post__container {
    max-width: 2000px;
    grid-template-columns: 1fr 450px;
    gap: var(--space-24);
  }
  
  .blog-post__title {
    font-size: clamp(4rem, 6vw, 6rem);
  }
  
  .blog-post__content {
    font-size: var(--step-3);
  }
}

/* 8K Display (7680px+) */
@media (min-width: 7680px) {
  .blog-post__container {
    max-width: 2400px;
    grid-template-columns: 1fr 500px;
    gap: var(--space-32);
  }
  
  .blog-post__title {
    font-size: clamp(4.5rem, 7vw, 7rem);
  }
  
  .blog-post__content {
    font-size: var(--step-4);
  }
}