/*
 * ui/blog-listing.css
 * /blog liste sayfası (Standart grid + Mozaik masonry) için self-contained stiller.
 * Tasarım token'ları tmp/blog-standart.html & tmp/blog-mozail.html mockup'larından taşındı.
 * CDN/Tailwind runtime yok. Tüm sınıflar blog- önekli; siteye sızmaz.
 */

:root {
    --blog-surface-card: #ffffff;
    --blog-on-surface: #0b1c30;
    --blog-on-surface-variant: #434655;
    --blog-secondary: #565e74;
    --blog-primary: #004ac6;
    --blog-border: rgba(195, 198, 215, 0.3);
    --blog-placeholder-to: #eff4ff;
    --blog-radius: 0.75rem;
    --blog-gutter: 24px;
    --blog-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ===== Blog liste — contact-shell içinde ===== */
.blog-shell .blog-grid,
.blog-shell .blog-mosaic {
  margin-top: 8px;
}
.blog-shell .blog-page__empty {
  margin: 0;
  text-align: center;
  color: var(--blog-secondary, #565e74);
  font-family: var(--font-body);
}

/* ===== Sayfa kabuğu (legacy — artık contact-shell kullanılıyor) ===== */
.blog-page {
    max-width: 1280px;
    margin: 0 auto;
    padding: 96px 20px 64px;
    font-family: var(--blog-font);
}

@media (min-width: 768px) {
    .blog-page {
        padding-left: 64px;
        padding-right: 64px;
    }
}

.blog-page__header {
    margin-bottom: 32px;
}

.blog-page__title {
    margin: 0;
    font-size: 32px;
    line-height: 40px;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--blog-on-surface);
}

@media (min-width: 768px) {
    .blog-page__title {
        font-size: 48px;
        line-height: 56px;
    }
}

.blog-page__empty {
    color: var(--blog-secondary);
    font-size: 16px;
}

/* ===== Standart grid ===== */
.blog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--blog-gutter);
}

@media (min-width: 768px) {
    .blog-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.blog-grid .blog-card-shell--featured {
    grid-column: 1 / -1;
}

@media (min-width: 1024px) {
    .blog-grid .blog-card-shell--featured {
        grid-column: span 2;
    }
}

/* ===== Mozaik (JS grid-masonry) =====
   NOT: Eskiden CSS multicolumn (column-count) kullanılıyordu. Safari'de bir
   multicolumn elemanına hover'da transform uygulanınca WebKit tüm column
   fragment'ını yeniden çiziyor ve kart kaybolup tekrar görünüyordu (flicker).
   Çözüm: multicolumn'ı tamamen bırakıp CSS grid + JS row-span masonry'ye geçtik.
   Grid hücresi içindeki transform Safari'de bu hatayı tetiklemez. */

/* Temel / JS yoksa (noscript): normal hizalı responsive grid */
.blog-mosaic {
    display: grid;
    grid-template-columns: 1fr;
    align-items: start;
    column-gap: var(--blog-gutter);
    row-gap: var(--blog-gutter);
}

@media (min-width: 768px) {
    .blog-mosaic {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .blog-mosaic {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

/* JS masonry aktif: satır yüksekliği 1px'e iner, dikey boşluk row-span ile verilir */
.blog-mosaic.is-masonry {
    row-gap: 0;
    grid-auto-rows: 1px;
}

.blog-mosaic .blog-card-shell {
    display: block;
}

/* JS masonry yokken (fallback) kartlar arası dikey boşluk grid row-gap'ten gelir;
   masonry aktifken span hesabı boşluğu eklediği için ek margin yok. */

/* ===== Kart ===== */
.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--blog-surface-card);
    border: 1px solid var(--blog-border);
    border-radius: var(--blog-radius);
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.blog-card-shell:hover .blog-card {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.blog-grid .blog-card--featured {
    flex-direction: column;
}

@media (min-width: 768px) {
    .blog-grid .blog-card--featured {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
}

/* ===== Görsel ===== */
.blog-card__media-link {
    display: block;
    overflow: hidden;
    text-decoration: none;
}

.blog-card__media {
    display: block;
    position: relative;
    overflow: hidden;
    background: var(--blog-placeholder-to);
}

.blog-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.7s ease;
}

.blog-card-shell:hover .blog-card__img {
    transform: scale(1.05);
}

.blog-card__media--ar169 { aspect-ratio: 16 / 9; }
.blog-card__media--ar45 { aspect-ratio: 4 / 5; }
.blog-card__media--ar11 { aspect-ratio: 1 / 1; }
.blog-card__media--featured { aspect-ratio: 1 / 1; }

@media (min-width: 768px) {
    .blog-grid .blog-card--featured .blog-card__media-link,
    .blog-grid .blog-card--featured .blog-card__media--featured {
        height: 100%;
        aspect-ratio: auto;
    }
}

/* ===== Gövde ===== */
.blog-card__body {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
}

.blog-grid .blog-card--featured .blog-card__body {
    padding: 32px;
    justify-content: center;
    gap: 16px;
}

.blog-card__meta {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--blog-secondary);
    font-size: 14px;
    line-height: 20px;
    font-weight: 500;
}

.blog-card__title {
    margin: 0;
    font-size: 20px;
    line-height: 28px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--blog-on-surface);
}

.blog-card__title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.blog-card-shell:hover .blog-card__title a {
    color: var(--blog-primary);
}

.blog-grid .blog-card--featured .blog-card__title {
    font-size: 30px;
    line-height: 38px;
    font-weight: 600;
}

.blog-card__excerpt {
    margin: 0;
    font-size: 16px;
    line-height: 24px;
    color: var(--blog-on-surface-variant);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-grid .blog-card--featured .blog-card__excerpt {
    -webkit-line-clamp: 3;
}

.blog-card__more {
    margin-top: auto;
    padding-top: 8px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--blog-primary);
    font-size: 14px;
    line-height: 20px;
    font-weight: 600;
    text-decoration: none;
}

.blog-mosaic .blog-card__more {
    margin-top: 4px;
}

.blog-card__more svg {
    width: 18px;
    height: 18px;
    transition: transform 0.2s ease;
}

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

/* ===== Sonsuz kaydırma sentinel + spinner ===== */
.blog-sentinel {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 48px;
    padding: 32px 0;
}

.blog-sentinel.is-hidden {
    display: none;
}

.blog-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--blog-placeholder-to);
    border-top-color: var(--blog-primary);
    border-radius: 50%;
    animation: blog-spin 1s linear infinite;
}

@keyframes blog-spin {
    to { transform: rotate(360deg); }
}

/* ===== Append edilen kartların giriş animasyonu ===== */
.blog-card--enter {
    animation: blog-fade-in 0.5s ease both;
}

@keyframes blog-fade-in {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
    .blog-card,
    .blog-card__img,
    .blog-card__more svg,
    .blog-card--enter {
        transition: none;
        animation: none;
    }
}

/* ===== noscript sayfalama ===== */
.blog-pager {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 32px;
}

.blog-pager__link {
    padding: 8px 16px;
    border: 1px solid rgba(195, 198, 215, 0.6);
    border-radius: 9999px;
    color: var(--blog-on-surface);
    font-size: 14px;
    text-decoration: none;
}

.blog-pager__link:hover {
    background: #eff4ff;
}