/* ==========================================================================
   REWARDSCOPE — BLOG & EDITORIAL DESIGN SYSTEM (MATERIAL DESIGN 3)
   ========================================================================== */

/* Blog Hub Layout */
.blog-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(60px, 8vw, 90px) 0 clamp(64px, 8vw, 96px);
  background: linear-gradient(145deg, #071228 0%, #0c1a36 45%, #10244c 100%);
  color: #ffffff;
  text-align: center;
}

.blog-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(11, 87, 208, 0.25) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(232, 93, 4, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.blog-hero-content {
  max-width: 820px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.blog-hero h1 {
  font-family: var(--font-family-brand);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1.1;
  margin: 0 0 16px 0;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.blog-hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, #70a6ff 0%, #a8c7fa 60%, #ffc2a6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.blog-hero-sub {
  font-size: clamp(1rem, 1.8vw, 1.1875rem);
  color: #c4c7c5;
  margin: 0 auto 32px;
  line-height: 1.6;
  max-width: 640px;
}

/* Blog Search & Chips */
.blog-search-bar {
  max-width: 580px;
  margin: 0 auto 28px;
  position: relative;
}

.blog-search-input {
  width: 100%;
  height: 52px;
  padding: 0 24px 0 52px;
  border-radius: var(--md-sys-shape-corner-full);
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  color: #ffffff;
  font-size: 0.9375rem;
  outline: none;
  transition: all var(--md-sys-motion-duration-short);
}

.blog-search-input::placeholder {
  color: #c4c7c5;
}

.blog-search-input:focus {
  background: rgba(255, 255, 255, 0.18);
  border-color: #70a6ff;
  box-shadow: 0 0 0 3px rgba(112, 166, 255, 0.25);
}

.blog-search-icon {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: #70a6ff;
  pointer-events: none;
}

/* Category Filter Chips */
.blog-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #e2e8f0;
  padding: 8px 18px;
  border-radius: var(--md-sys-shape-corner-full);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--md-sys-motion-duration-short);
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  color: #ffffff;
}

.filter-btn.is-active {
  background: var(--md-sys-color-primary);
  border-color: var(--md-sys-color-primary);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(11, 87, 208, 0.4);
}

/* Blog Feed & Cards Grid */
.blog-feed-section {
  padding: clamp(56px, 7vw, 88px) 0 clamp(64px, 8vw, 100px);
  background-color: var(--md-sys-color-surface);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.blog-card {
  display: flex;
  flex-direction: column;
  background-color: var(--md-sys-color-surface-container-lowest);
  border-radius: var(--md-sys-shape-corner-extra-large);
  border: 1px solid var(--md-sys-color-surface-container-high);
  box-shadow: var(--md-sys-elevation-1);
  overflow: hidden;
  transition: transform var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-standard),
              box-shadow var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-standard),
              border-color var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-standard);
  text-decoration: none !important;
  color: inherit !important;
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--md-sys-elevation-3);
  border-color: var(--md-sys-color-outline-variant);
}

.blog-card-header {
  padding: 22px 24px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.blog-card-badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: var(--md-sys-shape-corner-full);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.blog-card-meta {
  font-size: 0.75rem;
  color: var(--md-sys-color-outline);
  font-weight: 500;
}

.blog-card-body {
  padding: 0 24px 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-card-title {
  font-family: var(--font-family-brand);
  font-size: 1.1875rem;
  font-weight: 700;
  line-height: 1.35;
  margin: 6px 0 10px;
  color: var(--md-sys-color-on-surface);
  letter-spacing: -0.01em;
}

.blog-card-excerpt {
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--md-sys-color-surface-container-high);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--md-sys-color-primary);
}

.blog-card-footer svg {
  width: 16px;
  height: 16px;
  transition: transform var(--md-sys-motion-duration-short);
}

.blog-card:hover .blog-card-footer svg {
  transform: translateX(4px);
}

/* Single Article Layout */
.article-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--md-sys-color-outline);
  margin-bottom: 24px;
  font-weight: 500;
}

.breadcrumbs a {
  color: var(--md-sys-color-primary);
  text-decoration: none;
}

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

.article-header {
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--md-sys-color-surface-container-high);
}

.article-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: var(--md-sys-shape-corner-full);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  margin-bottom: 14px;
}

.article-header h1 {
  font-family: var(--font-family-brand);
  font-size: clamp(2rem, 3.8vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--md-sys-color-on-surface);
  margin: 0 0 16px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 0.8125rem;
  color: var(--md-sys-color-on-surface-variant);
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Article Content Typography & Styling */
.article-content {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--md-sys-color-on-surface-variant);
}

.article-content h2 {
  font-family: var(--font-family-brand);
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
  margin: 44px 0 18px;
  letter-spacing: -0.01em;
}

.article-content h3 {
  font-family: var(--font-family-brand);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
  margin: 32px 0 14px;
}

.article-content p {
  margin: 0 0 22px;
}

.article-content ul, .article-content ol {
  margin: 0 0 24px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 8px;
}

/* Callouts & Blocks */
.info-callout {
  padding: 24px;
  border-radius: var(--md-sys-shape-corner-large);
  background-color: var(--md-sys-color-surface-container-low);
  border: 1px solid var(--md-sys-color-surface-container-high);
  border-left: 4px solid var(--md-sys-color-primary);
  margin: 32px 0;
}

.info-callout h4 {
  font-family: var(--font-family-brand);
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--md-sys-color-on-surface);
}

.info-callout p {
  margin: 0;
  font-size: 0.9375rem;
}

.article-cta-box {
  background: linear-gradient(135deg, #071228 0%, #10244c 100%);
  border-radius: var(--md-sys-shape-corner-extra-large);
  padding: 36px;
  color: #ffffff;
  margin: 48px 0;
  text-align: center;
}

.article-cta-box h3 {
  font-family: var(--font-family-brand);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 12px;
  color: #ffffff;
}

.article-cta-box p {
  font-size: 0.9375rem;
  color: #c4c7c5;
  margin: 0 auto 24px;
  max-width: 540px;
}

/* Author Box */
.author-box {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background-color: var(--md-sys-color-surface-container-low);
  border-radius: var(--md-sys-shape-corner-large);
  border: 1px solid var(--md-sys-color-surface-container-high);
  margin-top: 48px;
}

.author-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.author-details h4 {
  margin: 0 0 4px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
}

.author-details p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.5;
}

/* Global SVG Safety Rules */
svg {
  max-width: 100%;
}

.brand-mark svg,
.site-header svg {
  flex-shrink: 0;
}

.takeaways-title svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.article-meta-bar svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.blog-search-icon svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}