/* ==========================================================================
   SPIONASE KELOMPOK 3 | ECO-LENS
   Master-Class Editorial & Responsive Stylesheet
   Fully compatible across Desktop, Laptop, Tablet, and Mobile
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --font-primary: 'Plus Jakarta Sans', 'Inter', -apple-system, sans-serif;
  
  /* Color Palette */
  --color-dark: #111810;
  --color-heading: #121814;
  --color-body: #374151;
  --color-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-bg-light: #f8faf9;
  --color-card-bg: #ffffff;
  
  /* Eco Green Accents */
  --accent-green: #2d6a4f;
  --accent-green-hover: #1b4332;
  --accent-green-light: #f0fdf4;
  --accent-lime: #74c69d;
  
  /* Layout & Shadows */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 9999px;
  
  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 16px 40px rgba(18, 24, 20, 0.08);
  
  --transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Global */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  color: var(--color-body);
  background-color: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

button, input, select, textarea {
  font-family: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Reading Progress Bar */
#reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3.5px;
  background: linear-gradient(90deg, #2d6a4f, #52b788, #74c69d);
  z-index: 99999;
  transition: width 0.1s linear;
}

/* ==========================================================================
   1. TOP NAVBAR (Sticky Glassmorphism)
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  background: rgba(14, 22, 16, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.15);
  transition: var(--transition);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.5px;
}

.logo-badge {
  background: var(--accent-lime);
  color: var(--color-dark);
  font-size: 10px;
  font-weight: 800;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.logo-icon {
  width: 22px;
  height: 22px;
  fill: var(--accent-lime);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  color: rgba(255, 255, 255, 0.82);
  font-size: 13.5px;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-nav-explore {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  padding: 8px 22px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.25);
  cursor: pointer;
  transition: var(--transition);
}

.btn-nav-explore:hover {
  background: #ffffff;
  color: var(--color-dark);
}

.mobile-toggle-btn {
  display: none;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.mobile-toggle-btn svg {
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   2. HERO SECTION
   ========================================================================== */
.hero {
  position: relative;
  min-height: 560px;
  background: linear-gradient(180deg, rgba(14, 22, 16, 0.6) 0%, rgba(14, 22, 16, 0.5) 50%, rgba(14, 22, 16, 0.85) 100%),
              url('https://images.unsplash.com/photo-1500382017468-9049fed747ef?auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
  display: flex;
  align-items: center;
  padding: 100px 0 70px;
  color: #ffffff;
}

.hero-content {
  max-width: 780px;
}

.hero-title {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -1.2px;
  margin-bottom: 18px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}

.hero-subtitle {
  font-size: 17.5px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.6;
  margin-bottom: 32px;
  max-width: 680px;
}

.hero-search-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-search-box {
  display: flex;
  align-items: center;
  background: #ffffff;
  border-radius: var(--radius-pill);
  padding: 5px 5px 5px 20px;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.25);
}

.hero-search-box svg {
  width: 17px;
  height: 17px;
  color: #888888;
  margin-right: 10px;
  flex-shrink: 0;
}

.hero-search-box input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 14px;
  color: var(--color-heading);
  background: transparent;
}

.btn-hero-search {
  background: var(--accent-green);
  color: #ffffff;
  border: none;
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.btn-hero-search:hover {
  background: var(--accent-green-hover);
}

.btn-hero-explore {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #ffffff;
  font-size: 13.5px;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: var(--transition);
}

.btn-hero-explore:hover {
  background: rgba(255, 255, 255, 0.28);
}

.hero-bottom-link {
  position: absolute;
  right: 48px;
  bottom: 32px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.88);
  cursor: pointer;
}

.hero-bottom-link .arrow-circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.hero-bottom-link:hover .arrow-circle {
  background: #ffffff;
  color: var(--color-dark);
  transform: translateY(3px);
}

/* ==========================================================================
   3. CATEGORY FILTER BAR
   ========================================================================== */
.category-filter-section {
  padding: 32px 0 16px;
  background-color: #ffffff;
  border-bottom: 1px solid var(--color-border);
}

.category-filter-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.category-filter-pills {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-pill {
  padding: 8px 18px;
  background: #f4f6f3;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted);
  cursor: pointer;
  transition: var(--transition);
}

.filter-pill:hover {
  background: #eaf1e5;
  color: var(--color-heading);
}

.filter-pill.active {
  background: var(--color-heading);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(18, 24, 20, 0.2);
}

.filter-status-text {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--color-muted);
}

.filter-status-text strong {
  color: var(--accent-green);
}

/* Section Shared */
.section {
  padding: 64px 0;
}

.section-title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.6px;
  color: var(--color-heading);
  margin-bottom: 32px;
}

.article-date {
  display: block;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.article-category {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 800;
  color: var(--accent-green);
  background: var(--accent-green-light);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

/* ==========================================================================
   4. POPULAR ARTICLES SECTION
   ========================================================================== */
.popular-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 36px;
  align-items: start;
}

.featured-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: var(--transition);
}

.featured-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: #d4ddd0;
}

.featured-img-wrap {
  width: 100%;
  height: 330px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 18px;
  background: #f0f3ee;
}

.featured-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.featured-card:hover .featured-img-wrap img {
  transform: scale(1.04);
}

.featured-title {
  font-size: 21px;
  font-weight: 800;
  line-height: 1.32;
  color: var(--color-heading);
  margin-bottom: 10px;
  transition: var(--transition);
}

.featured-card:hover .featured-title {
  color: var(--accent-green);
}

.featured-desc {
  font-size: 13.5px;
  color: var(--color-body);
  line-height: 1.6;
}

.side-articles-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.side-card {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px;
  transition: var(--transition);
}

.side-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: #d4ddd0;
}

.side-img-wrap {
  width: 150px;
  height: 110px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #f0f3ee;
}

.side-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.side-content {
  flex: 1;
}

.side-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-heading);
  margin-bottom: 6px;
  transition: var(--transition);
}

.side-card:hover .side-title {
  color: var(--accent-green);
}

.side-desc {
  font-size: 12.5px;
  color: var(--color-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ==========================================================================
   5. LATEST ARTICLES (3-Column Grid)
   ========================================================================== */
.latest-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.latest-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: var(--transition);
  height: 100%;
}

.latest-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: #d4ddd0;
}

.latest-img-wrap {
  width: 100%;
  height: 210px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 16px;
  background: #f0f3ee;
}

.latest-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

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

.latest-title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.36;
  color: var(--color-heading);
  margin-bottom: 8px;
  transition: var(--transition);
}

.latest-card:hover .latest-title {
  color: var(--accent-green);
}

.latest-desc {
  font-size: 13px;
  color: var(--color-body);
  line-height: 1.55;
  margin-top: auto;
}

/* ==========================================================================
   6. INTERACTIVE ENVIRONMENT SECTION
   ========================================================================== */
.interactive-section {
  background: #f7faf6;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.interactive-intro {
  font-size: 15.5px;
  color: var(--color-muted);
  margin-top: -20px;
  margin-bottom: 36px;
}

.interactive-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.interactive-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
}

.icard-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.icard-icon {
  font-size: 22px;
}

.icard-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--color-heading);
}

.icard-desc {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 18px;
  line-height: 1.5;
}

.carbon-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.carbon-row label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 4px;
}

.carbon-input {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  outline: none;
  background: #fafcf9;
}

.carbon-input:focus {
  border-color: var(--accent-green);
  background: #ffffff;
}

.btn-carbon-calc {
  background: var(--color-heading);
  color: #ffffff;
  border: none;
  padding: 10px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 4px;
}

.btn-carbon-calc:hover {
  background: var(--accent-green);
}

.carbon-result {
  margin-top: 12px;
  padding: 12px;
  background: var(--accent-green-light);
  border-radius: var(--radius-md);
  border: 1px solid #d4e8c1;
  display: none;
}

.carbon-total-num {
  font-size: 18px;
  font-weight: 800;
}

.carbon-total-num small {
  font-size: 11px;
  font-weight: 600;
}

.carbon-level-badge {
  display: inline-block;
  color: #ffffff;
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  margin-left: 6px;
}

.carbon-breakdown {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 11.5px;
  color: var(--color-body);
  margin: 6px 0;
}

.carbon-tips {
  font-size: 12px;
  color: #3b5f10;
  font-weight: 600;
}

.emoji-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.emoji-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 10px 6px;
  background: #f7faf6;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.emoji-btn:hover {
  background: var(--accent-green-light);
  border-color: #c4e0a5;
  transform: translateY(-2px);
}

.emoji-btn-active {
  animation: popScale 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popScale {
  0% { transform: scale(1); }
  50% { transform: scale(1.18); }
  100% { transform: scale(1); }
}

.emoji-icon {
  font-size: 22px;
}

.emoji-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-body);
}

.emoji-count {
  font-size: 10.5px;
  font-weight: 800;
  color: var(--accent-green);
}

.emoji-total-text {
  font-size: 12px;
  color: var(--color-muted);
  margin-top: 14px;
  text-align: center;
}

.poll-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.poll-option-btn {
  padding: 10px 12px;
  background: #f7faf6;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-heading);
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
}

.poll-option-btn:hover {
  background: var(--accent-green-light);
  border-color: #c4e0a5;
}

.poll-results {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.poll-total-text {
  font-size: 12.5px;
  color: var(--color-muted);
  margin-bottom: 4px;
}

.poll-result-row {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.poll-result-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--color-heading);
}

.poll-bar-wrap {
  height: 7px;
  background: #e2e8df;
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.poll-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-lime));
  border-radius: var(--radius-pill);
  transition: width 0.5s ease;
}

.poll-result-pct {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--accent-green);
  align-self: flex-end;
}

.btn-reset-poll {
  background: none;
  border: none;
  font-size: 11.5px;
  color: var(--color-muted);
  cursor: pointer;
  text-decoration: underline;
  margin-top: 8px;
}

/* ==========================================================================
   7. DIGITAL DISCUSSION SECTION
   ========================================================================== */
.discussion-section {
  background: #ffffff;
}

.discussion-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 36px;
  align-items: start;
}

.discussion-form-card {
  background: #f7faf6;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.discussion-form-card h3 {
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--color-heading);
}

.discussion-form-card p {
  font-size: 13.5px;
  color: var(--color-muted);
  margin-bottom: 18px;
}

.discussion-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.discussion-input, .discussion-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 13.5px;
  outline: none;
  background: #ffffff;
}

.discussion-textarea {
  resize: vertical;
  min-height: 90px;
}

.btn-submit-discussion {
  background: var(--color-heading);
  color: #ffffff;
  border: none;
  padding: 11px 22px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  align-self: flex-start;
  transition: var(--transition);
}

.btn-submit-discussion:hover {
  background: var(--accent-green);
}

.discussion-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.comment-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow-subtle);
}

.comment-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.comment-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent-green-light);
  color: var(--accent-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 13px;
}

.comment-author {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-heading);
}

.comment-date {
  font-size: 11.5px;
  color: var(--color-muted);
}

.comment-text {
  font-size: 13.5px;
  color: var(--color-body);
  line-height: 1.5;
}

.empty-state-box {
  grid-column: 1 / -1;
  text-align: center;
  padding: 50px 20px;
  background: #f7faf6;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--color-border);
  margin: 16px 0;
}

.empty-state-box h3 {
  font-size: 19px;
  color: var(--color-heading);
  margin-bottom: 6px;
}

.empty-state-box p {
  font-size: 13.5px;
  color: var(--color-muted);
}

/* ==========================================================================
   8. ARTICLE READING PAGE STYLES (article.html)
   ========================================================================== */
.article-detail-header {
  background: linear-gradient(180deg, #0e1610 0%, #152218 100%);
  padding: 80px 0 70px;
  color: #ffffff;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-lime);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 24px;
  transition: var(--transition);
}

.back-link:hover {
  color: #ffffff;
  transform: translateX(-4px);
}

.article-category-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  color: var(--color-dark);
  background: var(--accent-lime);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.article-detail-title {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.8px;
  color: #ffffff;
  margin-bottom: 24px;
  max-width: 860px;
}

.article-author-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.85);
}

.author-monogram {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-lime);
  color: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 12px;
}

.author-info-text strong {
  display: block;
  color: #ffffff;
  font-size: 14px;
}

.article-main-container {
  max-width: 840px;
  margin: -40px auto 80px;
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  box-shadow: 0 15px 45px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--color-border);
  position: relative;
  z-index: 10;
}

.article-hero-img-wrap {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 36px;
  background: #f0f3ee;
}

.article-hero-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-content-body {
  font-size: 17px;
  line-height: 1.85;
  color: #2c352e;
}

.article-content-body p {
  margin-bottom: 24px;
}

.article-content-body h3 {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-heading);
  margin: 36px 0 16px;
  border-left: 4px solid var(--accent-green);
  padding-left: 14px;
}

.article-content-body blockquote {
  border-left: 4px solid var(--accent-green);
  background-color: #f4f8f2;
  padding: 20px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 18px;
  font-style: italic;
  color: #1e3a15;
  margin: 32px 0;
  font-weight: 500;
}

.article-sources {
  margin-top: 40px;
  padding: 24px;
  border-radius: var(--radius-md);
  background: #f8faf6;
  border: 1px solid var(--color-border);
}

.article-sources h3 {
  margin: 0 0 14px;
  font-size: 16.5px;
  font-weight: 800;
  color: var(--color-heading);
  border-left: none;
  padding-left: 0;
}

.article-sources ul {
  list-style: disc;
  margin-left: 20px;
}

.article-sources li {
  margin-bottom: 8px;
  font-size: 13.5px;
}

.article-sources a {
  color: var(--accent-green);
  text-decoration: underline;
  font-weight: 600;
}

/* Interdisciplinary Chemistry & Civics Analysis */
.interdisciplinary-analysis {
  margin: 44px 0 8px;
  padding: 28px;
  border: 1px solid #dce5db;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, #f7faf6 0%, #ffffff 60%);
}

.analysis-heading {
  margin-bottom: 22px;
}

.analysis-kicker {
  display: inline-block;
  margin-bottom: 7px;
  color: var(--accent-green);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-content-body .analysis-heading h3 {
  margin: 0 0 8px;
  padding: 0;
  border-left: 0;
  font-size: 22px;
}

.article-content-body .analysis-heading p {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.6;
}

.analysis-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.analysis-card {
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
}

.chemistry-card {
  border-top: 4px solid #167d9a;
}

.civics-card {
  border-top: 4px solid #c78b21;
}

.analysis-card-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 11px;
  color: var(--color-heading);
  font-size: 14px;
  font-weight: 800;
}

.analysis-card-label span {
  font-size: 18px;
}

.article-content-body .analysis-card p {
  margin: 0;
  color: var(--color-body);
  font-size: 14px;
  line-height: 1.72;
}

.article-content-body .analysis-note {
  margin: 17px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 12.5px;
  line-height: 1.6;
}

.article-share-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  margin-top: 40px;
  border-top: 1px solid var(--color-border);
}

.share-label {
  font-weight: 700;
  font-size: 14px;
  color: var(--color-heading);
}

.btn-copy-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-heading);
  color: #ffffff;
  border: none;
  padding: 9px 20px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.btn-copy-link:hover {
  background: var(--accent-green);
}

/* ==========================================================================
   9. CTA BANNER
   ========================================================================== */
.cta-banner {
  position: relative;
  background: linear-gradient(180deg, rgba(14, 22, 16, 0.72) 0%, rgba(14, 22, 16, 0.82) 100%),
              url('https://images.unsplash.com/photo-1470071459604-3b5ec3a7fe05?auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
  padding: 90px 24px;
  text-align: center;
  color: #ffffff;
}

.cta-title {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 14px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.cta-subtitle {
  font-size: 16.5px;
  color: rgba(255, 255, 255, 0.88);
  max-width: 620px;
  margin: 0 auto 32px;
}

.btn-cta-explore {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-lime);
  color: var(--color-dark);
  border: none;
  padding: 13px 34px;
  border-radius: var(--radius-pill);
  font-size: 14.5px;
  font-weight: 800;
  cursor: pointer;
  transition: var(--transition);
}

.btn-cta-explore:hover {
  background: #b5e462;
  transform: translateY(-2px);
}

/* ==========================================================================
   10. COMPACT MINIMALIST FOOTER
   ========================================================================== */
.footer-clean {
  background-color: #ffffff;
  border-top: 1px solid var(--color-border);
  padding: 28px 0;
}

.footer-compact-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-brand-inline {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-brand-inline .logo {
  color: var(--color-heading);
  font-size: 18px;
}

.footer-copy-text {
  font-size: 13px;
  color: var(--color-muted);
}

.footer-links-inline {
  display: flex;
  align-items: center;
  gap: 18px;
}

.footer-links-inline a {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-body);
  transition: var(--transition);
}

.footer-links-inline a:hover {
  color: var(--accent-green);
}

/* ==========================================================================
   11. COMPREHENSIVE RESPONSIVE BREAKPOINTS (ALL DEVICES)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 36px;
  }
  .popular-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .latest-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .interactive-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .discussion-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .article-main-container {
    padding: 32px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  .header {
    padding: 12px 0;
  }
  .mobile-toggle-btn {
    display: flex;
  }
  .btn-nav-explore {
    display: none;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(14, 22, 16, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 18px 20px;
    gap: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  }

  .nav-menu.mobile-open {
    display: flex;
    animation: fadeInDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }

  @keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .hero {
    padding: 75px 0 45px;
    min-height: auto;
  }
  .hero-title {
    font-size: 26px;
    line-height: 1.25;
    margin-bottom: 12px;
  }
  .hero-subtitle {
    font-size: 14px;
    margin-bottom: 20px;
  }
  .hero-search-box {
    max-width: 100%;
    padding: 4px 4px 4px 14px;
  }
  .btn-hero-search {
    padding: 8px 16px;
    font-size: 12.5px;
  }
  .btn-hero-explore {
    width: 100%;
    justify-content: center;
  }
  .hero-bottom-link {
    display: none;
  }

  .featured-img-wrap {
    height: 210px;
  }
  .featured-title {
    font-size: 18px;
  }

  .side-card {
    flex-direction: column;
    gap: 12px;
  }
  .side-img-wrap {
    width: 100%;
    height: 170px;
  }

  .latest-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .latest-img-wrap {
    height: 170px;
  }

  .cta-title {
    font-size: 26px;
    line-height: 1.25;
  }
  .cta-subtitle {
    font-size: 14px;
  }

  .article-detail-header {
    padding: 60px 0 50px;
  }
  .article-detail-title {
    font-size: 26px;
    line-height: 1.3;
  }
  .article-main-container {
    padding: 20px 16px;
    margin-top: -30px;
    border-radius: var(--radius-md);
  }
  .article-hero-img-wrap {
    height: 220px;
    margin-bottom: 24px;
  }
  .article-content-body {
    font-size: 15.5px;
    line-height: 1.75;
  }
  .article-content-body h3 {
    font-size: 20px;
    margin: 28px 0 12px;
  }
  .article-content-body blockquote {
    font-size: 15.5px;
    padding: 16px;
    margin: 24px 0;
  }
  .interdisciplinary-analysis {
    margin-top: 32px;
    padding: 20px 16px;
  }
  .analysis-grid {
    grid-template-columns: 1fr;
  }
  .analysis-card {
    padding: 17px;
  }

  .footer-compact-inner {
    flex-direction: column;
    text-align: center;
    gap: 14px;
  }
  .footer-brand-inline {
    flex-direction: column;
    gap: 6px;
  }
  .footer-links-inline {
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 23px;
  }
  .section-title {
    font-size: 22px;
    margin-bottom: 20px;
  }
  .emoji-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .interactive-card {
    padding: 18px 14px;
  }
  .article-detail-title {
    font-size: 22px;
  }
}