/* =============================================================
   Postulia — Blog / Index / Archive / Search
   File: assets/css/blog.css
   Scope: .blog-index
   - Hero matches project style
   - Post grid as cards with image/letter fallback
   ============================================================= */

@layer pages {

  /* Containers (use global gutters) */
  .blog-index .container{
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--gutter-xs);
  }
  @media (min-width: 641px){
    .blog-index .container{ padding-inline: var(--gutter-sm); }
  }
  @media (min-width: 1000px){
    .blog-index .container{ padding-inline: var(--gutter-md); }
  }

  /* ---------------- Hero ---------------- */
  .blog-index .hero{
    position: relative;
    color: var(--text-default);
    border-bottom: 1px solid var(--border-default);
    background:
      radial-gradient(900px 500px at 15% -10%, color-mix(in srgb, var(--brand-100) 80%, #fff), transparent),
      radial-gradient(700px 400px at 85% 0%,  color-mix(in srgb, #dbeafe 60%, #fff), transparent),
      linear-gradient(180deg, #ffffff 0%, #f7fbff 60%, #f4f7ff 100%);
    min-height: 220px;
    align-content: center;
  }
  .blog-index .hero > .container{
    position: relative;
    z-index: 2;
    min-height: 220px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-block: var(--sp-8);
  }
  .blog-index .hero::before{
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    opacity: .5;
    pointer-events: none;
    background-image:
      linear-gradient(to right, hsla(215,40%,80%,.2) 1px, transparent 1px),
      linear-gradient(to bottom, hsla(215,40%,80%,.2) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: blog-hero-grid 10s linear infinite;
  }
  @keyframes blog-hero-grid{
    from { background-position: 0 0; }
    to   { background-position: 100px 100px; }
  }
  .blog-index .hero__title{
    margin: 0;
    font-weight: 700;
    line-height: 1.15;
    font-size: clamp(28px, 4vw, 40px);
  }
  .blog-index .hero__subtitle{
    margin: var(--sp-2) 0 0;
    color: var(--text-muted);
    font-size: clamp(15px, 2.2vw, 18px);
  }

  /* ---------------- Content ---------------- */
  .blog-index .content{ padding-block: var(--sp-8); }

  .blog-index .post-grid{
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }
  @media (min-width: 1000px){
    .blog-index .post-grid{
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: var(--sp-7);
    }
  }

  /* Post card */
  .blog-index .post-card{
    background: var(--surface-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--sp-6);
    display: grid;
    gap: var(--sp-4);
  }

  .blog-index .post-card__head{
    display: flex;
    align-items: center;
    gap: var(--sp-4);
    min-width: 0;
  }

  .blog-index .post-card__thumb{
    width: 75px;
    height: 75px;
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    display: grid;
    place-items: center;
    overflow: hidden;
    flex: 0 0 auto;
  }
  .blog-index .post-card__thumb-img{ width: 100%; height: 100%; object-fit: cover; }

  /* Letter fallback (same gradient) */
  .blog-index .post-card__thumb--fallback{
    color: #fff;
    font-size: 50px;
    line-height: 1;
    letter-spacing: .3px;
    background: conic-gradient(from 210deg at 70% 0%,
                var(--brand-500), var(--brand-700) 50%,
                var(--brand-500) 50%, var(--brand-300));
  }

  .blog-index .post-card__meta{ min-width: 0; }
  .blog-index .post-card__title{
    margin: 0 0 .25rem;
    font-weight: 700;
    line-height: 1.2;
    font-size: clamp(18px, 2.6vw, 22px);
  }
  .blog-index .post-card__title a{ color: var(--text-default); text-decoration: none; }
  .blog-index .post-card__title a:hover{ text-decoration: underline; }

  .blog-index .post-card__date{
    color: var(--text-muted);
    font-size: .95rem;
  }

  .blog-index .post-card__excerpt{
    margin: 0;
    color: var(--text-default);
    line-height: 1.7;
  }

  /* Pagination */
  .blog-index .posts-nav{ margin-top: var(--sp-8); }
  .blog-index .posts-nav__links{
    display: flex; justify-content: space-between; gap: var(--sp-4);
  }
  .blog-index .posts-nav a{
    display: inline-block;
    padding: .6rem .9rem;
    border: 1px solid var(--border-default);
    border-radius: var(--radius);
    text-decoration: none;
  }

  /* Empty state */
  .blog-index .empty{
    background: var(--surface-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: var(--sp-6);
    box-shadow: var(--shadow-sm);
  }
  .blog-index .empty__title{ margin: 0 0 .5rem; font-weight: 700; font-size: clamp(22px,3vw,26px); }
  .blog-index .empty__text{ margin: 0 0 var(--sp-4); color: var(--text-muted); }
}