/* ==========================================================================
   VITALYS — BLOG LISTING PAGE
   Sections: Variables, Hero, Filters, Featured Blog, Blog Grid, Cards,
   Pagination, Animations, Responsive Breakpoints.
   Shares brand tokens (--font-nav, --color-accent, --color-accent-deep,
   --color-navy, --color-description, --ease-out-quart, etc.) already
   defined in navbar.css; only page-specific tokens live here.
   ========================================================================== */

/* ==========================================================================
   1. VARIABLES
   ========================================================================== */
:root {
  /* This page doesn't load hero.css / features.css, but shares their
     brand tokens (defined once there, redeclared here identically) so
     blog.html stays self-sufficient regardless of which other
     stylesheets a given page happens to include. */
  --color-accent-deep: #134681;
  --color-navy: #0c2c51;
  --color-description: #666666;

  --blogpage-hero-height-desktop: 400px;
  --blogpage-hero-height-tablet: 320px;
  --blogpage-hero-height-mobile: 250px;
  --blogpage-hero-overlay: rgba(7, 24, 36, 0.55);

  --blogpage-section-padding-desktop: 100px;
  --blogpage-section-padding-tablet: 80px;
  --blogpage-section-padding-mobile: 60px;

  --blogpage-card-radius: 20px;
}

/* ==========================================================================
   2. HERO
   ========================================================================== */
.blogpage-hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: var(--blogpage-hero-height-desktop);
  overflow: hidden;
  isolation: isolate;
  background-image: url("../images/Common_Banner.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  text-align: center;
}

.blogpage-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--blogpage-hero-overlay);
  z-index: 1;
}

.blogpage-hero-content {
  position: relative;
  z-index: 2;
  color: #ffffff;
}

.blogpage-hero-label {
  margin: 0 0 15px;
  font-family: var(--font-nav);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: #ffffff;
  opacity: 0.9;
}

.blogpage-hero-heading {
  margin: 0 0 15px;
  font-family: var(--font-nav);
  font-weight: 700;
  font-size: 50px;
  line-height: 1.15;
  color: #ffffff;
  text-wrap: balance;
}

.blogpage-hero-description {
  margin: 0 auto;
  max-width: 620px;
  font-family: var(--font-nav);
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.92);
  text-wrap: pretty;
}

/* ==========================================================================
   3. FILTERS
   ========================================================================== */
.blogpage-filter-section {
  background: #ffffff;
  padding-top: 60px;
  padding-bottom: 20px;
}

.blogpage-search {
  position: relative;
  max-width: 480px;
  margin: 0 auto 35px;
}

.blogpage-search-icon {
  position: absolute;
  top: 50%;
  left: 22px;
  transform: translateY(-50%);
  color: var(--color-accent);
  font-size: 18px;
  pointer-events: none;
}

.blogpage-search-input {
  width: 100%;
  height: 54px;
  padding: 0 20px 0 52px;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  font-family: var(--font-nav);
  font-size: 16px;
  color: var(--color-text);
  background: #ffffff;
  transition: border-color 0.35s ease, box-shadow 0.35s ease;
}

.blogpage-search-input::placeholder {
  color: #9aa3ab;
}

.blogpage-search-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-tint);
}

.blogpage-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.blogpage-filter-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 24px;
  border: 1.5px solid var(--color-accent);
  border-radius: 999px;
  background: #ffffff;
  color: var(--color-accent);
  font-family: var(--font-nav);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.3px;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.35s ease, color 0.35s ease, transform 0.35s ease;
}

.blogpage-filter-btn:hover,
.blogpage-filter-btn:focus-visible {
  background: var(--color-accent);
  color: #ffffff;
}

.blogpage-filter-btn.is-active {
  background: var(--color-accent);
  color: #ffffff;
}

.blogpage-filter-btn:focus-visible {
  outline: 2px solid var(--color-accent-deep);
  outline-offset: 3px;
}

/* ==========================================================================
   4. FEATURED BLOG
   ========================================================================== */
.blogpage-featured-section {
  background: #ffffff;
  padding-top: 40px;
  padding-bottom: var(--blogpage-section-padding-desktop);
}

.featured-blog {
  align-items: stretch;
}

.featured-blog-media {
  position: relative;
}

.featured-blog-image-wrap {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 500px;
  border-radius: var(--blogpage-card-radius);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(12, 44, 81, 0.16);
}

.featured-blog-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.featured-blog-link:hover .featured-blog-image,
.featured-blog-link:focus-visible .featured-blog-image {
  transform: scale(1.05);
}

.featured-blog-badge {
  position: absolute;
  top: 24px;
  left: 24px;
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--color-accent);
  color: #ffffff;
  font-family: var(--font-nav);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  z-index: 2;
}

.featured-blog-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.featured-blog-date {
  display: block;
  margin: 0 0 15px;
  font-family: var(--font-nav);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
}

.featured-blog-title {
  margin: 0 0 20px;
  font-family: var(--font-nav);
  font-weight: 700;
  font-size: 40px;
  line-height: 1.25;
  color: var(--color-navy);
}

.featured-blog-title-link {
  color: inherit;
  text-decoration: none;
  transition: color 0.35s ease;
}

.featured-blog-title-link:hover,
.featured-blog-title-link:focus-visible {
  color: var(--color-accent);
}

.featured-blog-excerpt {
  margin: 0 0 35px;
  font-family: var(--font-nav);
  font-size: 18px;
  line-height: 1.9;
  color: var(--color-description);
}

.btn-featured-read {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  align-self: flex-start;
  height: 58px;
  padding: 0 34px;
  border: none;
  border-radius: 999px;
  background: var(--color-accent);
  color: #ffffff;
  font-family: var(--font-nav);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.35s ease, transform 0.35s ease, box-shadow 0.35s ease;
}

.btn-featured-read svg {
  width: 16px;
  height: 16px;
  transition: transform 0.35s ease;
}

.btn-featured-read:hover,
.btn-featured-read:focus-visible {
  background: var(--color-accent-deep);
  transform: translateY(-3px);
  box-shadow: 0 16px 32px rgba(12, 44, 81, 0.28);
}

.btn-featured-read:hover svg,
.btn-featured-read:focus-visible svg {
  transform: translateX(4px);
}

.btn-featured-read:focus-visible {
  outline: 2px solid var(--color-accent-deep);
  outline-offset: 3px;
}

/* ==========================================================================
   5. BLOG GRID
   ========================================================================== */
.blogpage-grid-section {
  background: #ffffff;
  padding-top: 0;
  padding-bottom: 30px;
}

.blogpage-grid > .col {
  display: flex;
}

.blogpage-empty {
  display: none;
  width: 100%;
  padding: 60px 20px;
  text-align: center;
  font-family: var(--font-nav);
  font-size: 18px;
  color: var(--color-description);
}

.blogpage-empty.is-visible {
  display: block;
}

/* ==========================================================================
   6. CARDS
   ========================================================================== */
.blogpage-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  background: #ffffff;
  border-radius: var(--blogpage-card-radius);
  overflow: hidden;
  box-shadow: 0 2px 18px rgba(12, 44, 81, 0.08);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.blogpage-card:hover,
.blogpage-card:focus-within {
  transform: translateY(-10px);
  box-shadow: 0 24px 48px rgba(12, 44, 81, 0.18);
}

.blogpage-card-figure {
  position: relative;
  margin: 0;
  width: 100%;
  height: 250px;
  overflow: hidden;
  border-radius: var(--blogpage-card-radius) var(--blogpage-card-radius) 0 0;
  flex: 0 0 auto;
}

.blogpage-card-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.blogpage-card:hover .blogpage-card-image,
.blogpage-card:focus-within .blogpage-card-image {
  transform: scale(1.08);
}

.blogpage-card-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--color-accent);
  color: #ffffff;
  font-family: var(--font-nav);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.blogpage-card-body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  padding: 30px;
}

.blogpage-card-date {
  display: block;
  margin: 0 0 15px;
  font-family: var(--font-nav);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
}

.blogpage-card-title {
  margin: 0 0 16px;
  font-family: var(--font-nav);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.3;
}

.blogpage-card-title-link {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  color: var(--color-navy);
  text-decoration: none;
  transition: color 0.35s ease;
}

.blogpage-card:hover .blogpage-card-title-link,
.blogpage-card:focus-within .blogpage-card-title-link,
.blogpage-card-title-link:hover {
  color: var(--color-accent);
}

.blogpage-card-description {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
  margin: 0 0 26px;
  font-family: var(--font-nav);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-description);
}

.blogpage-card-readmore {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-nav);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
}

.blogpage-card-readmore-text {
  position: relative;
}

.blogpage-card-readmore-text::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.35s ease;
}

.blogpage-card-readmore-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.35s ease;
}

.blogpage-card-readmore-icon svg {
  width: 16px;
  height: 16px;
}

.blogpage-card-readmore:hover .blogpage-card-readmore-text::after,
.blogpage-card-readmore:focus-visible .blogpage-card-readmore-text::after {
  width: 100%;
}

.blogpage-card-readmore:hover .blogpage-card-readmore-icon,
.blogpage-card-readmore:focus-visible .blogpage-card-readmore-icon {
  transform: translateX(4px);
}

.blogpage-card-readmore:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 2px;
}

/* ==========================================================================
   7. PAGINATION
   ========================================================================== */
.blogpage-pagination-section {
  background: #ffffff;
  padding-top: 10px;
  padding-bottom: var(--blogpage-section-padding-desktop);
}

.blogpage-pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.blogpage-page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  height: 46px;
  padding: 0 18px;
  border: 1.5px solid var(--color-accent);
  border-radius: 999px;
  background: #ffffff;
  color: var(--color-accent);
  font-family: var(--font-nav);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.35s ease, color 0.35s ease;
}

.blogpage-page-btn[data-page-number] {
  padding: 0;
  width: 46px;
}

.blogpage-page-btn:hover,
.blogpage-page-btn:focus-visible {
  background: var(--color-accent);
  color: #ffffff;
}

.blogpage-page-btn.is-active {
  background: var(--color-accent);
  color: #ffffff;
  cursor: default;
}

.blogpage-page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  background: #ffffff;
  color: var(--color-accent);
}

.blogpage-page-btn:focus-visible {
  outline: 2px solid var(--color-accent-deep);
  outline-offset: 3px;
}

/* ==========================================================================
   8. ANIMATIONS
   ========================================================================== */
@keyframes blogpageFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes blogpageFadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Everything below is fully visible by default; blog.js opts elements
   into the hidden pre-animation state (.will-animate) only after
   confirming IntersectionObserver support and no reduced-motion
   preference — so a JS failure or a headless/no-scroll render never
   ships a blank page. */
.blogpage-hero.will-animate {
  opacity: 0;
}

.blogpage-hero.will-animate.is-visible {
  animation: blogpageFadeIn 0.9s var(--ease-out-quart) both;
}

.featured-blog.will-animate {
  opacity: 0;
  transform: translateY(30px);
}

.featured-blog.will-animate.is-visible {
  animation: blogpageFadeUp 0.7s var(--ease-out-quart) both;
}

.blogpage-pagination-section.will-animate {
  opacity: 0;
}

.blogpage-pagination-section.will-animate.is-visible {
  animation: blogpageFadeIn 0.7s var(--ease-out-quart) both;
}

/* Grid cards fade up whenever a new page/filter is rendered (see
   blog.js) — each card's stagger delay is set inline by the script
   since the number of visible cards changes at runtime and can't be
   predicted with fixed nth-child rules. */
.blogpage-card.fade-up-item {
  animation: blogpageFadeUp 0.6s var(--ease-out-quart) both;
}

@media (prefers-reduced-motion: reduce) {
  .blogpage-hero.will-animate,
  .blogpage-hero.will-animate.is-visible,
  .featured-blog.will-animate,
  .featured-blog.will-animate.is-visible,
  .blogpage-pagination-section.will-animate,
  .blogpage-pagination-section.will-animate.is-visible,
  .blogpage-card.fade-up-item {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

/* ==========================================================================
   9. RESPONSIVE BREAKPOINTS
   ========================================================================== */

/* Tablet: 768px–991px */
@media (min-width: 768px) and (max-width: 991.98px) {
  .blogpage-hero {
    height: var(--blogpage-hero-height-tablet);
  }

  .blogpage-hero-heading {
    font-size: 42px;
  }

  .blogpage-featured-section,
  .blogpage-pagination-section {
    padding-top: 30px;
    padding-bottom: var(--blogpage-section-padding-tablet);
  }

  .featured-blog-image-wrap {
    min-height: 380px;
  }

  .featured-blog-content {
    padding-top: 30px;
  }

  .featured-blog-title {
    font-size: 32px;
  }
}

/* Mobile: below 768px */
@media (max-width: 767.98px) {
  .blogpage-hero {
    height: var(--blogpage-hero-height-mobile);
  }

  .blogpage-hero-heading {
    font-size: clamp(24px, 8px + 5vw, 32px);
  }

  .blogpage-hero-description {
    font-size: clamp(15px, 9px + 1.9vw, 18px);
  }

  .blogpage-hero-label {
    letter-spacing: 3px;
  }

  .blogpage-filter-section {
    padding-top: 40px;
  }

  .blogpage-filters {
    gap: 10px;
  }

  .blogpage-filter-btn {
    height: 42px;
    padding: 0 18px;
    font-size: 14px;
  }

  .blogpage-featured-section,
  .blogpage-pagination-section {
    padding-top: 20px;
    padding-bottom: var(--blogpage-section-padding-mobile);
  }

  .featured-blog-image-wrap {
    min-height: 0;
    height: 280px;
  }

  .featured-blog-content {
    padding-top: 30px;
    text-align: left;
  }

  .featured-blog-title {
    font-size: 26px;
  }

  .featured-blog-excerpt {
    font-size: 16px;
  }

  .blogpage-card-body {
    padding: 24px;
  }
}

/* Desktop: 55% / 45% featured split (see Section Layout spec) */
@media (min-width: 992px) {
  .featured-blog-media {
    flex: 0 0 55%;
    max-width: 55%;
  }

  .featured-blog-content {
    flex: 0 0 45%;
    max-width: 45%;
    padding-left: 20px;
  }
}