/* ── Variables ───────────────────────────────────────────────────────────── */
:root {
  --c-bg:       #ffffff;
  --c-surface:  #f8f9fb;
  --c-border:   #e8eaed;
  --c-text:     #1a1a2e;
  --c-muted:    #6b7280;
  --c-primary:  #2563eb;
  --c-primary2: #1d4ed8;
  --c-accent:   #ef4444;
  --c-tag:      #eff6ff;
  --c-tag-t:    #1d4ed8;
  --r:          8px;
  --r-lg:       14px;
  --shadow:     0 1px 4px rgba(0,0,0,.07);
  --shadow-md:  0 4px 16px rgba(0,0,0,.09);
  --font:       -apple-system,BlinkMacSystemFont,'Segoe UI','Inter',sans-serif;
  --serif:      Georgia,'Times New Roman',serif;
}

/* ── Reset ───────────────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--c-bg);color:var(--c-text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--c-primary);text-decoration:none}a:hover{color:var(--c-primary2)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}

/* ── Layout ──────────────────────────────────────────────────────────────── */
.container{max-width:1160px;margin:0 auto;padding:0 20px}
.grid-main{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}
@media(max-width:900px){.grid-main{grid-template-columns:1fr}}

/* ── Header ──────────────────────────────────────────────────────────────── */
.site-header{background:#fff;border-bottom:1px solid var(--c-border);position:sticky;top:0;z-index:100;box-shadow:var(--shadow)}
.header-inner{display:flex;align-items:center;gap:16px;height:60px}
.logo{font-size:20px;font-weight:800;color:var(--c-text);letter-spacing:-.5px;flex-shrink:0}
.logo span{color:var(--c-primary)}
.main-nav{display:flex;gap:2px;flex:1;overflow-x:auto;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.main-nav a{white-space:nowrap;font-size:14px;font-weight:500;color:var(--c-muted);padding:6px 12px;border-radius:var(--r);transition:all .15s}
.main-nav a:hover,.main-nav a.active{color:var(--c-primary);background:var(--c-tag)}
.nav-search{position:relative}
.nav-search input{background:var(--c-surface);border:1.5px solid var(--c-border);border-radius:20px;padding:6px 16px 6px 36px;font-size:14px;outline:none;width:200px;transition:all .2s}
.nav-search input:focus{border-color:var(--c-primary);width:240px}
.nav-search::before{content:'🔍';position:absolute;left:11px;top:50%;transform:translateY(-50%);font-size:13px;pointer-events:none}
.city-btn{background:var(--c-surface);border:1.5px solid var(--c-border);border-radius:20px;padding:6px 14px;font-size:13px;font-weight:500;cursor:pointer;color:var(--c-text);white-space:nowrap;transition:all .15s}
.city-btn:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* ── City Modal ──────────────────────────────────────────────────────────── */
.city-modal-bg{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:999;align-items:center;justify-content:center}
.city-modal-bg.open{display:flex}
.city-modal{background:#fff;border-radius:var(--r-lg);padding:28px;width:500px;max-width:94vw;max-height:85vh;overflow-y:auto;box-shadow:var(--shadow-md)}
.city-modal h3{font-size:18px;font-weight:700;margin-bottom:16px}
.city-search-input{width:100%;border:1.5px solid var(--c-border);border-radius:var(--r);padding:8px 14px;font-size:14px;outline:none;margin-bottom:14px}
.city-search-input:focus{border-color:var(--c-primary)}
.city-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:8px}
.city-item{padding:7px 10px;border:1.5px solid var(--c-border);border-radius:var(--r);font-size:13px;font-weight:500;cursor:pointer;text-align:center;transition:all .15s;background:#fff}
.city-item:hover,.city-item.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.city-item-all{background:var(--c-surface);border-color:var(--c-border);font-weight:600}

/* ── Hero / Featured ─────────────────────────────────────────────────────── */
.featured-post{display:grid;grid-template-columns:1fr 1fr;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-md);margin:28px 0 36px;background:#fff;border:1px solid var(--c-border)}
.featured-post img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.featured-post__body{padding:32px;display:flex;flex-direction:column;justify-content:center}
.featured-post h2{font-size:24px;font-weight:800;line-height:1.3;margin-bottom:12px}
.featured-post p{font-size:15px;color:var(--c-muted);line-height:1.7;margin-bottom:20px}
@media(max-width:700px){.featured-post{grid-template-columns:1fr}.featured-post img{aspect-ratio:16/9}}

/* ── Cards ───────────────────────────────────────────────────────────────── */
.posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}
.card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.card__img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card__img-placeholder{width:100%;aspect-ratio:16/9;background:var(--c-surface);display:flex;align-items:center;justify-content:center;font-size:32px;color:var(--c-border)}
.card__body{padding:18px}
.card__meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--c-muted);margin-bottom:8px;flex-wrap:wrap}
.card__cat{background:var(--c-tag);color:var(--c-tag-t);padding:2px 8px;border-radius:999px;font-weight:600;font-size:11px}
.card__city{background:#f0fdf4;color:#15803d;padding:2px 8px;border-radius:999px;font-weight:600;font-size:11px}
.card h3{font-size:16px;font-weight:700;line-height:1.4;margin-bottom:8px}
.card h3 a{color:var(--c-text)}
.card h3 a:hover{color:var(--c-primary)}
.card p{font-size:14px;color:var(--c-muted);line-height:1.6}
.card__footer{padding:12px 18px;border-top:1px solid var(--c-border);display:flex;align-items:center;gap:10px}
.card__author-img{width:28px;height:28px;border-radius:50%;object-fit:cover}
.card__author-name{font-size:13px;font-weight:500;color:var(--c-muted)}

/* ── Post Detail ─────────────────────────────────────────────────────────── */
.post-header{margin-bottom:28px}
.post-title{font-size:34px;font-weight:800;line-height:1.25;margin:14px 0}
.post-meta{display:flex;align-items:center;gap:16px;font-size:14px;color:var(--c-muted);flex-wrap:wrap;margin-bottom:8px}
.post-hero{border-radius:var(--r-lg);overflow:hidden;margin-bottom:32px}
.post-hero img{width:100%;max-height:500px;object-fit:cover}
.post-content{font-size:17px;line-height:1.9;max-width:740px}
.post-content h2{font-size:24px;font-weight:700;margin:40px 0 14px;line-height:1.3}
.post-content h3{font-size:20px;font-weight:600;margin:32px 0 10px}
.post-content p{margin-bottom:22px}
.post-content ul,.post-content ol{padding-left:28px;margin-bottom:22px}
.post-content li{margin-bottom:8px}
.post-content blockquote{border-left:4px solid var(--c-primary);padding-left:22px;margin:30px 0;font-style:italic;color:var(--c-muted);font-size:18px}
.post-content img{border-radius:var(--r);margin:24px 0;max-width:100%}
.post-content a{color:var(--c-primary);text-decoration:underline}
.post-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.post-content th,.post-content td{border:1px solid var(--c-border);padding:10px 14px;text-align:left}
.post-content th{background:var(--c-surface);font-weight:600}
.post-content pre{background:#1e293b;color:#e2e8f0;padding:20px;border-radius:var(--r);overflow-x:auto;font-size:14px;margin:24px 0}
.post-content code{background:#f1f5f9;color:#e11d48;padding:2px 6px;border-radius:4px;font-size:14px}
.post-content pre code{background:none;color:inherit;padding:0}

/* ── Author Box (E-E-A-T) ────────────────────────────────────────────────── */
.author-box{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);padding:24px;margin-top:40px;display:flex;gap:20px}
.author-box__avatar{width:80px;height:80px;border-radius:50%;object-fit:cover;flex-shrink:0}
.author-box__info{flex:1}
.author-box__name{font-size:18px;font-weight:700;margin-bottom:4px}
.author-box__title{font-size:13px;color:var(--c-primary);font-weight:500;margin-bottom:10px}
.author-box__bio{font-size:15px;color:var(--c-muted);line-height:1.7;margin-bottom:12px}
.author-box__expertise{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.expertise-tag{background:var(--c-tag);color:var(--c-tag-t);padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}
.author-box__links{display:flex;gap:10px;flex-wrap:wrap}
.author-link{font-size:13px;font-weight:500;color:var(--c-muted);padding:5px 12px;border:1.5px solid var(--c-border);border-radius:999px;transition:all .15s}
.author-link:hover{border-color:var(--c-primary);color:var(--c-primary)}
.author-posts-count{font-size:13px;color:var(--c-muted);margin-top:6px}
@media(max-width:600px){.author-box{flex-direction:column;align-items:center;text-align:center}}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:80px}
.widget{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);padding:20px}
.widget h3{font-size:15px;font-weight:700;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--c-primary);display:inline-block}
.widget-cats a{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--c-border);font-size:14px;color:var(--c-text);transition:color .15s}
.widget-cats a:last-child{border:none}
.widget-cats a:hover{color:var(--c-primary)}
.widget-cats span{background:var(--c-surface);padding:2px 8px;border-radius:999px;font-size:12px;color:var(--c-muted)}
.widget-posts .wpost{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--c-border)}
.widget-posts .wpost:last-child{border:none;padding-bottom:0}
.widget-posts .wpost img{width:60px;height:60px;object-fit:cover;border-radius:var(--r);flex-shrink:0}
.widget-posts .wpost-title{font-size:13px;font-weight:600;line-height:1.4;color:var(--c-text)}
.widget-posts .wpost-title:hover{color:var(--c-primary)}
.widget-posts .wpost-date{font-size:12px;color:var(--c-muted);margin-top:4px}
.city-filter-list{display:flex;flex-wrap:wrap;gap:6px}
.city-filter-list a{font-size:12px;font-weight:500;padding:4px 10px;background:var(--c-surface);border:1.5px solid var(--c-border);border-radius:999px;color:var(--c-muted);transition:all .15s}
.city-filter-list a:hover,.city-filter-list a.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ── Breadcrumb ──────────────────────────────────────────────────────────── */
.breadcrumb{font-size:13px;color:var(--c-muted);display:flex;gap:8px;flex-wrap:wrap;align-items:center;padding:16px 0}
.breadcrumb a{color:var(--c-primary)}
.breadcrumb span{color:var(--c-border)}

/* ── Tags ────────────────────────────────────────────────────────────────── */
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.tag{background:var(--c-surface);border:1.5px solid var(--c-border);padding:5px 14px;border-radius:999px;font-size:13px;font-weight:500;color:var(--c-muted);transition:all .15s}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* ── Share ───────────────────────────────────────────────────────────────── */
.share-bar{display:flex;align-items:center;gap:10px;padding:20px 0;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);margin:32px 0;flex-wrap:wrap}
.share-bar span{font-size:14px;font-weight:600;color:var(--c-muted)}
.share-btn{padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;border:none;cursor:pointer;transition:all .15s}
.share-twitter{background:#000;color:#fff}
.share-facebook{background:#1877f2;color:#fff}
.share-whatsapp{background:#25d366;color:#fff}
.share-copy{background:var(--c-surface);color:var(--c-text);border:1.5px solid var(--c-border)}
.share-copy:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* ── Pagination ──────────────────────────────────────────────────────────── */
.pagination{display:flex;gap:6px;justify-content:center;margin:40px 0;flex-wrap:wrap}
.pagination a,.pagination span{padding:8px 14px;border:1.5px solid var(--c-border);border-radius:var(--r);font-size:14px;font-weight:500;color:var(--c-text);transition:all .15s}
.pagination a:hover,.pagination span.current{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 22px;border-radius:var(--r);font-size:14px;font-weight:600;border:none;cursor:pointer;transition:all .15s;text-decoration:none}
.btn-primary{background:var(--c-primary);color:#fff}.btn-primary:hover{background:var(--c-primary2);color:#fff}
.btn-outline{background:transparent;color:var(--c-primary);border:2px solid var(--c-primary)}.btn-outline:hover{background:var(--c-primary);color:#fff}

/* ── Footer ──────────────────────────────────────────────────────────────── */
.site-footer{background:var(--c-surface);border-top:1px solid var(--c-border);padding:40px 0 24px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px;margin-bottom:32px}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:12px}
.footer-col a{display:block;font-size:14px;color:var(--c-muted);padding:3px 0;transition:color .15s}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{border-top:1px solid var(--c-border);padding-top:20px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--c-muted)}

/* ── Utilities ───────────────────────────────────────────────────────────── */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.mt-8{margin-top:32px}.mb-6{margin-bottom:24px}.text-muted{color:var(--c-muted)}
.section-title{font-size:22px;font-weight:800;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.section-title::after{content:'';flex:1;height:2px;background:var(--c-border)}

/* ── Performance: lazy load ─────────────────────────────────────────────── */
img[loading="lazy"]{opacity:0;transition:opacity .3s}
img[loading="lazy"].loaded{opacity:1}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media(max-width:768px){
  .header-inner{flex-wrap:wrap;height:auto;padding:10px 0;gap:8px}
  .main-nav{order:3;width:100%}
  .post-title{font-size:24px}
  .post-content{font-size:16px}
  .featured-post__body{padding:20px}
  .featured-post h2{font-size:20px}
}
@media(max-width:480px){
  .posts-grid{grid-template-columns:1fr}
  .nav-search input{width:140px}
}