/* ============================================================
   Sardinia Blog — Minimal, readable stylesheet
   ============================================================ */

/* --- Reset & base ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-bg:        #fafaf8;
    --color-surface:   #ffffff;
    --color-border:    #e8e4de;
    --color-text:      #1a1917;
    --color-muted:     #6b6560;
    --color-accent:    #2e5f8a;
    --color-accent-h:  #1d4068;
    --color-mark:      #fff0a0;
    --color-badge-v:   #e63946;
    --font-sans:       system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-serif:      Georgia, 'Times New Roman', serif;
    --radius:          6px;
    --max-w:           1080px;
    --max-w-prose:     680px;
    --shadow-sm:       0 1px 3px rgba(0,0,0,.07);
    --shadow-md:       0 3px 10px rgba(0,0,0,.10);
    --transition:      .18s ease;
}

html { font-size: 17px; scroll-behavior: smooth; }

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-h); text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }
time { font-variant-numeric: tabular-nums; }

/* --- Layout ----------------------------------------------- */
.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* --- Header ----------------------------------------------- */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.site-header .container {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.site-brand {
    display: flex;
    flex-direction: column;
    gap: .1rem;
    flex: 1;
    min-width: 0;
}

.brand-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.brand-name:hover { color: var(--color-accent); text-decoration: none; }

.brand-sub {
    font-size: .75rem;
    color: var(--color-muted);
    letter-spacing: .03em;
    text-transform: uppercase;
}

/* --- Search form ------------------------------------------- */
.header-search {
    display: flex;
    align-items: center;
    gap: .4rem;
    flex-shrink: 0;
}

.header-search input[type="search"] {
    border: 1px solid var(--color-border);
    border-radius: 50px;
    padding: .45rem 1rem;
    font-size: .875rem;
    width: 220px;
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}
.header-search input[type="search"]:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(46,95,138,.15);
}

.header-search button {
    background: var(--color-accent);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 34px;
    height: 34px;
    cursor: pointer;
    display: grid;
    place-items: center;
    transition: background var(--transition);
    flex-shrink: 0;
}
.header-search button:hover { background: var(--color-accent-h); }

/* --- Main -------------------------------------------------- */
.site-main { padding: 2.5rem 0 4rem; }

/* --- Author filter chips ---------------------------------- */
.author-filter {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 1.75rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--color-border);
}

.author-chip {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .35em .85em;
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-size: .82rem;
    font-weight: 500;
    color: var(--color-muted);
    background: var(--color-surface);
    text-decoration: none;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.author-chip:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    text-decoration: none;
}
.author-chip.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

.chip-avatar {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    object-fit: cover;
}
.chip-count {
    font-size: .72rem;
    opacity: .7;
}
.author-chip.active .chip-count { opacity: .85; }

/* --- Badge autore nelle card ------------------------------ */
.badge-author {
    background: #f0f4f8;
    color: var(--color-accent);
    font-weight: 500;
    text-decoration: none;
    transition: background var(--transition);
}
.badge-author:hover { background: #dce8f5; text-decoration: none; }

/* --- Posts grid ------------------------------------------- */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

/* --- Post card -------------------------------------------- */
.post-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow var(--transition), transform var(--transition);
}
.post-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-thumb {
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--color-bg);
}
.card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}
.post-card:hover .card-thumb img { transform: scale(1.04); }

.card-body {
    padding: 1.1rem 1.25rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: .6rem;
    flex: 1;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .78rem;
    color: var(--color-muted);
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
}
.card-title a {
    color: var(--color-text);
    transition: color var(--transition);
}
.card-title a:hover { color: var(--color-accent); text-decoration: none; }

.card-excerpt {
    font-size: .875rem;
    color: var(--color-muted);
    line-height: 1.55;
    flex: 1;
}

.card-stats {
    display: flex;
    gap: .9rem;
    font-size: .78rem;
    color: var(--color-muted);
    padding-top: .4rem;
    border-top: 1px solid var(--color-border);
}
.card-stats span {
    display: flex;
    align-items: center;
    gap: .25rem;
}
.card-stats svg { color: #b0a8a0; }

/* --- Badges ----------------------------------------------- */
.badge {
    display: inline-block;
    padding: .15em .55em;
    border-radius: 50px;
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
    line-height: 1.6;
}
.badge-video { background: #ffe5e5; color: var(--color-badge-v); }
.badge-paid  { background: #e5edff; color: #2b4fba; }

/* --- Single post ------------------------------------------ */
.single-post {
    max-width: var(--max-w-prose);
    margin: 0 auto;
}

.breadcrumb {
    font-size: .85rem;
    margin-bottom: 1.5rem;
    color: var(--color-muted);
}
.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-accent); }

.post-header { margin-bottom: 1.75rem; }

.post-title {
    font-family: var(--font-serif);
    font-size: clamp(1.4rem, 3.5vw, 2rem);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -.02em;
    margin-bottom: .6rem;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-size: .82rem;
    color: var(--color-muted);
}

/* --- Gallery ---------------------------------------------- */
.post-gallery {
    margin: 0 0 1.75rem;
    border-radius: var(--radius);
    overflow: hidden;
}

.post-gallery.gallery-multi {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 4px;
}

.media-item img {
    width: 100%;
    border-radius: var(--radius);
}
.gallery-multi .media-item img { border-radius: 0; }

.media-caption {
    font-size: .75rem;
    color: var(--color-muted);
    margin-top: .35rem;
    font-style: italic;
}

/* Video thumb */
.media-video { position: relative; }
.video-thumb-link { position: relative; display: block; }
.play-btn {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    font-size: 3rem;
    color: rgba(255,255,255,.9);
    text-shadow: 0 2px 8px rgba(0,0,0,.5);
    background: rgba(0,0,0,.15);
    transition: background var(--transition);
}
.video-thumb-link:hover .play-btn { background: rgba(0,0,0,.3); }

/* --- Post body -------------------------------------------- */
.post-body {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.post-body p { margin-bottom: 1.1em; }
.post-body p:last-child { margin-bottom: 0; }

/* --- External link ---------------------------------------- */
.post-external-link {
    margin-bottom: 1.5rem;
    padding: .75rem 1rem;
    background: #eef4fb;
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius) var(--radius) 0;
    font-size: .875rem;
}
.post-external-link a {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-weight: 500;
}

/* --- Post stats ------------------------------------------- */
.post-stats {
    border-top: 1px solid var(--color-border);
    padding-top: 1.25rem;
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stats-group {
    display: flex;
    gap: 1.75rem;
    flex-wrap: wrap;
}

.stat-block {
    display: flex;
    flex-direction: column;
    gap: .15rem;
}
.stat-label {
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--color-muted);
}
.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -.02em;
}

.reactions-bar {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    font-size: .9rem;
}
.reaction {
    display: inline-flex;
    align-items: center;
    gap: .25rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    padding: .2em .65em;
    cursor: default;
    white-space: nowrap;
}
.reaction small { font-size: .78rem; color: var(--color-muted); }

.fb-link {
    font-size: .85rem;
    color: var(--color-muted);
}
.fb-link:hover { color: var(--color-accent); }

/* --- Comments --------------------------------------------- */
.post-comments {
    margin-top: 2.5rem;
    border-top: 1px solid var(--color-border);
    padding-top: 1.75rem;
}
.post-comments h3 {
    font-size: .95rem;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--color-muted);
    margin-bottom: 1.25rem;
}

.comment-item {
    display: flex;
    gap: .875rem;
    padding: .875rem 0;
    border-bottom: 1px solid var(--color-border);
}
.comment-item:last-child { border-bottom: none; }

.comment-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    background: var(--color-bg);
}

.comment-content { flex: 1; min-width: 0; }

.comment-meta {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: .5rem;
    font-size: .8rem;
    color: var(--color-muted);
    margin-bottom: .35rem;
}
.comment-meta strong { color: var(--color-text); font-size: .875rem; }
.comment-likes { color: var(--color-badge-v); }

.comment-content p {
    font-size: .9rem;
    line-height: 1.55;
    white-space: pre-wrap;
    word-break: break-word;
}

/* --- Post navigation -------------------------------------- */
.post-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.post-nav-link {
    display: flex;
    flex-direction: column;
    gap: .3rem;
    padding: .875rem 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    transition: background var(--transition), border-color var(--transition);
    text-decoration: none;
}
.post-nav-link:hover { background: #f0f4f8; border-color: var(--color-accent); }
.post-nav-next { text-align: right; }

.nav-label {
    font-size: .73rem;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--color-muted);
}
.nav-title {
    font-size: .875rem;
    font-weight: 600;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* --- Search header ---------------------------------------- */
.search-header {
    margin-bottom: 2rem;
}
.search-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: .35rem;
}
.search-header h1 em { font-style: normal; color: var(--color-accent); }
.search-header p { font-size: .9rem; color: var(--color-muted); }

/* Highlight search terms */
mark {
    background: var(--color-mark);
    color: inherit;
    border-radius: 2px;
    padding: 0 .1em;
}

/* --- Pagination ------------------------------------------- */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: .35rem;
    margin-top: 2.5rem;
    padding-bottom: 1rem;
}

.pag-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.25rem;
    height: 2.25rem;
    padding: 0 .75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: .85rem;
    color: var(--color-text);
    background: var(--color-surface);
    text-decoration: none;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.pag-link:hover { background: #eef4fb; border-color: var(--color-accent); color: var(--color-accent); }
.pag-link.pag-active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
    font-weight: 600;
    pointer-events: none;
}

.pag-dots {
    padding: 0 .25rem;
    color: var(--color-muted);
    font-size: .85rem;
    line-height: 2.25rem;
}

/* --- Empty state ------------------------------------------ */
.empty-state {
    color: var(--color-muted);
    font-size: .95rem;
    padding: 3rem 0;
    text-align: center;
    grid-column: 1 / -1;
}

/* --- Footer ----------------------------------------------- */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 1.5rem 0;
    font-size: .8rem;
    color: var(--color-muted);
    text-align: center;
}
.site-footer a { color: var(--color-muted); }
.site-footer a:hover { color: var(--color-accent); }

/* --- Responsive ------------------------------------------- */
@media (max-width: 600px) {
    html { font-size: 16px; }

    .site-header .container { flex-direction: column; align-items: stretch; gap: .75rem; }
    .header-search { width: 100%; }
    .header-search input[type="search"] { width: 100%; flex: 1; }

    .posts-grid { grid-template-columns: 1fr; }

    .post-nav { grid-template-columns: 1fr; }
    .post-nav-next { text-align: left; }

    .stats-group { gap: 1.25rem; }
}