/* ============================================
   TerIHatcherWeb - Main Stylesheet
   Mobile-first · Dark mode · AdSense-friendly
   ============================================ */

/* ---------- Tokens ---------- */
:root{
  --c-bg:        #ffffff;
  --c-bg-alt:    #f6f8fb;
  --c-surface:   #ffffff;
  --c-border:    #e6eaf0;
  --c-text:      #0f1b2d;
  --c-text-soft: #4a5568;
  --c-muted:     #8895a7;
  --c-primary:   #0a2540;
  --c-accent:    #ff6b35;
  --c-accent-2:  #ffa726;
  --c-link:      #0a2540;
  --c-success:   #16a34a;
  --shadow-sm:   0 1px 2px rgba(15,27,45,.06), 0 1px 3px rgba(15,27,45,.04);
  --shadow-md:   0 4px 12px rgba(15,27,45,.08);
  --shadow-lg:   0 12px 32px rgba(15,27,45,.10);
  --radius:      12px;
  --radius-sm:   8px;
  --container:   1200px;
  --font-body:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif:  'Merriweather', Georgia, 'Times New Roman', serif;
  --transition:  .25s cubic-bezier(.4,0,.2,1);
}

[data-theme="dark"]{
  --c-bg:        #0b1220;
  --c-bg-alt:    #0f1826;
  --c-surface:   #131f33;
  --c-border:    #22304a;
  --c-text:      #e8eefb;
  --c-text-soft: #b6c2d9;
  --c-muted:     #7c8aa5;
  --c-primary:   #ff6b35;
  --c-accent:    #ffa726;
  --c-link:      #ffb37a;
  --shadow-sm:   0 1px 2px rgba(0,0,0,.4);
  --shadow-md:   0 4px 12px rgba(0,0,0,.5);
  --shadow-lg:   0 12px 32px rgba(0,0,0,.6);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  transition:background var(--transition), color var(--transition);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-link);text-decoration:none;transition:color var(--transition);}
a:hover{color:var(--c-accent);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul{list-style:none;padding:0;margin:0;}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:900;line-height:1.25;color:var(--c-text);margin:0 0 .6em;}
h1{font-size:clamp(1.8rem,4vw,2.6rem);}
h2{font-size:clamp(1.4rem,3vw,1.9rem);}
h3{font-size:clamp(1.15rem,2.2vw,1.35rem);}
p{margin:0 0 1em;}

/* ---------- Layout ---------- */
.container{max-width:var(--container);margin:0 auto;padding:0 20px;}
.skip-link{
  position:absolute;top:-100px;left:12px;z-index:999;
  background:var(--c-accent);color:#fff;padding:10px 16px;border-radius:var(--radius-sm);
  font-weight:600;transition:top .2s;
}
.skip-link:focus{top:12px;color:#fff;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.85);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--c-border);
  transition:background var(--transition);
}
[data-theme="dark"] .site-header{background:rgba(11,18,32,.85);}
.header-inner{
  display:flex;align-items:center;gap:20px;
  padding:14px 20px;min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--c-text);font-size:1.05rem;flex-shrink:0;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  display:grid;place-items:center;
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#fff;font-weight:900;font-family:var(--font-serif);
  font-size:1.15rem;box-shadow:var(--shadow-sm);
}
.brand-text{letter-spacing:-.02em;}

.main-nav{display:flex;gap:26px;margin-left:20px;}
.main-nav a{
  color:var(--c-text-soft);font-weight:600;font-size:.94rem;position:relative;padding:4px 0;
}
.main-nav a::after{
  content:'';position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--c-accent);transition:width var(--transition);
}
.main-nav a:hover{color:var(--c-text);}
.main-nav a:hover::after{width:100%;}

.search-form{
  margin-left:auto;display:flex;align-items:center;
  background:var(--c-bg-alt);border:1px solid var(--c-border);
  border-radius:999px;overflow:hidden;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.search-form:focus-within{border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(255,107,53,.12);}
.search-form input{
  border:0;background:transparent;outline:none;
  padding:9px 16px;font-size:.92rem;color:var(--c-text);width:200px;font-family:inherit;
}
.search-form button{
  padding:8px 14px;color:var(--c-text-soft);display:grid;place-items:center;
  transition:color var(--transition);
}
.search-form button:hover{color:var(--c-accent);}

.theme-toggle{
  display:grid;place-items:center;width:40px;height:40px;border-radius:10px;
  color:var(--c-text-soft);transition:background var(--transition),color var(--transition);
}
.theme-toggle:hover{background:var(--c-bg-alt);color:var(--c-accent);}
.theme-toggle .icon-moon{display:none;}
[data-theme="dark"] .theme-toggle .icon-sun{display:none;}
[data-theme="dark"] .theme-toggle .icon-moon{display:block;}

.menu-toggle{
  display:none;width:40px;height:40px;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.menu-toggle span{display:block;width:22px;height:2px;background:var(--c-text);border-radius:2px;transition:transform var(--transition),opacity var(--transition);}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Homepage Hero ---------- */
.hero{
  padding:48px 0 24px;
  background:linear-gradient(180deg,var(--c-bg-alt),var(--c-bg));
  border-bottom:1px solid var(--c-border);
}
.hero-inner{max-width:760px;}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);margin-bottom:.4em;letter-spacing:-.02em;}
.hero p{font-size:1.1rem;color:var(--c-text-soft);max-width:640px;}

/* ---------- Article Grid ---------- */
.section{padding:48px 0;}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:28px;}
.section-head h2{margin:0;}
.section-head .count{color:var(--c-muted);font-size:.9rem;font-weight:500;}

.post-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
  gap:28px;
}

.post-card{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
  box-shadow:var(--shadow-sm);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent;}

.post-thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-bg-alt);
}
.post-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s cubic-bezier(.4,0,.2,1);
}
.post-card:hover .post-thumb img{transform:scale(1.06);}
.post-cat{
  position:absolute;top:12px;left:12px;
  background:rgba(10,37,64,.9);color:#fff;
  padding:5px 10px;border-radius:6px;font-size:.72rem;font-weight:700;
  letter-spacing:.04em;text-transform:uppercase;
  backdrop-filter:blur(6px);
}
.post-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.post-body h3{margin:0 0 .5em;font-size:1.15rem;line-height:1.35;}
.post-body h3 a{color:var(--c-text);}
.post-body h3 a:hover{color:var(--c-accent);}
.post-body p{color:var(--c-text-soft);font-size:.94rem;margin-bottom:16px;flex:1;}
.post-meta{
  display:flex;align-items:center;gap:12px;
  font-size:.8rem;color:var(--c-muted);font-weight:500;
  border-top:1px solid var(--c-border);padding-top:14px;margin-top:auto;
}
.post-meta span{display:flex;align-items:center;gap:5px;}

/* ---------- Pagination ---------- */
.pagination{
  display:flex;justify-content:center;align-items:center;gap:8px;
  margin:48px 0 20px;flex-wrap:wrap;
}
.pagination a,.pagination span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:42px;height:42px;padding:0 14px;
  border-radius:10px;border:1px solid var(--c-border);
  background:var(--c-surface);color:var(--c-text-soft);
  font-weight:600;font-size:.92rem;
  transition:all var(--transition);
}
.pagination a:hover{background:var(--c-accent);color:#fff;border-color:var(--c-accent);transform:translateY(-2px);}
.pagination .current{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.pagination .disabled{opacity:.4;pointer-events:none;}

/* ---------- Single Article ---------- */
.article-page{padding:40px 0 64px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:48px;align-items:start;
}
.article-header{margin-bottom:32px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;gap:6px;align-items:center;
  font-size:.85rem;color:var(--c-muted);margin-bottom:16px;
}
.breadcrumb a{color:var(--c-text-soft);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb .sep{opacity:.5;}

.article-header h1{font-size:clamp(1.9rem,4.5vw,2.9rem);letter-spacing:-.02em;margin-bottom:.3em;}
.article-submeta{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;
  color:var(--c-muted);font-size:.9rem;font-weight:500;margin-bottom:24px;
}
.article-submeta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-muted);}

.article-hero-img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--radius);box-shadow:var(--shadow-md);margin-bottom:32px;
  background:var(--c-bg-alt);
}

.article-content{
  font-size:1.06rem;line-height:1.8;color:var(--c-text);
}
.article-content h2{
  font-size:1.6rem;margin:2em 0 .6em;padding-bottom:.3em;
  border-bottom:2px solid var(--c-border);scroll-margin-top:90px;
}
.article-content h3{font-size:1.25rem;margin:1.6em 0 .5em;}
.article-content p{margin:0 0 1.2em;}
.article-content ul,.article-content ol{margin:0 0 1.2em 1.4em;padding-left:1.2em;}
.article-content ul{list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin-bottom:.5em;}
.article-content blockquote{
  border-left:4px solid var(--c-accent);
  background:var(--c-bg-alt);
  padding:16px 22px;margin:1.5em 0;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  font-style:italic;color:var(--c-text-soft);
}
.article-content img{border-radius:var(--radius);margin:1.5em 0;}
.article-content code{
  background:var(--c-bg-alt);padding:2px 6px;border-radius:4px;
  font-size:.9em;font-family:ui-monospace,Menlo,monospace;
}
.article-content a{font-weight:600;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:3px;}

/* ToC */
.toc{
  background:var(--c-bg-alt);border:1px solid var(--c-border);
  border-radius:var(--radius);padding:20px 24px;margin:0 0 32px;
}
.toc h4{margin:0 0 10px;font-size:.95rem;letter-spacing:.05em;text-transform:uppercase;color:var(--c-muted);font-family:var(--font-body);font-weight:700;}
.toc ol{margin:0;padding-left:1.2em;list-style:decimal;color:var(--c-text-soft);}
.toc li{margin-bottom:6px;font-size:.94rem;}
.toc a{color:var(--c-text-soft);text-decoration:none;}
.toc a:hover{color:var(--c-accent);}

/* Share */
.share-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin:40px 0;padding:20px 0;
  border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);
}
.share-row strong{margin-right:6px;font-size:.9rem;color:var(--c-muted);text-transform:uppercase;letter-spacing:.06em;}
.share-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:999px;
  background:var(--c-bg-alt);color:var(--c-text-soft);
  font-size:.85rem;font-weight:600;
  transition:all var(--transition);
}
.share-btn:hover{background:var(--c-accent);color:#fff;transform:translateY(-2px);}

/* Author box */
.author-box{
  display:flex;gap:16px;align-items:center;
  background:var(--c-bg-alt);border:1px solid var(--c-border);
  border-radius:var(--radius);padding:20px;margin:32px 0;
}
.author-avatar{
  width:56px;height:56px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#fff;display:grid;place-items:center;font-weight:900;font-size:1.3rem;font-family:var(--font-serif);
}
.author-info h4{margin:0 0 4px;font-family:var(--font-body);font-size:1rem;}
.author-info p{margin:0;font-size:.88rem;color:var(--c-text-soft);}

/* Related */
.related{margin-top:48px;}
.related h2{font-size:1.4rem;margin-bottom:20px;}

/* ---------- Sidebar ---------- */
.sidebar{
  display:flex;flex-direction:column;gap:24px;
  position:sticky;top:92px;
}
.widget{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);
}
.widget-title{
  font-family:var(--font-body);font-size:.9rem;font-weight:800;
  letter-spacing:.08em;text-transform:uppercase;color:var(--c-muted);
  margin:0 0 16px;
}
.widget-list li a{
  display:flex;gap:12px;padding:10px 0;align-items:flex-start;
  border-bottom:1px solid var(--c-border);color:var(--c-text);
}
.widget-list li:last-child a{border-bottom:0;padding-bottom:0;}
.widget-list li:first-child a{padding-top:0;}
.widget-list li a:hover .widget-headline{color:var(--c-accent);}
.widget-thumb{flex-shrink:0;width:60px;height:60px;border-radius:var(--radius-sm);overflow:hidden;background:var(--c-bg-alt);}
.widget-thumb img{width:100%;height:100%;object-fit:cover;}
.widget-meta{display:flex;flex-direction:column;gap:4px;min-width:0;}
.widget-headline{
  font-size:.92rem;font-weight:600;line-height:1.35;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--transition);
}
.widget-date{font-size:.76rem;color:var(--c-muted);font-weight:500;}
.widget-newsletter{background:linear-gradient(135deg,var(--c-primary),#12365e);color:#fff;border:0;}
.widget-newsletter h3{color:#fff;margin-bottom:8px;}
.widget-newsletter p{color:rgba(255,255,255,.85);font-size:.92rem;margin-bottom:16px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:10px;
  font-weight:700;font-size:.92rem;
  transition:all var(--transition);cursor:pointer;border:0;
}
.btn-primary{background:var(--c-accent);color:#fff;}
.btn-primary:hover{background:#ff7d4d;color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,107,53,.35);}

/* ---------- Ad Slots ---------- */
.ad-slot{
  position:relative;
  background:var(--c-bg-alt);
  border:1px dashed var(--c-border);
  border-radius:var(--radius);
  padding:14px;text-align:center;
  margin:24px 0;overflow:hidden;
}
.ad-label{
  display:block;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--c-muted);margin-bottom:6px;font-weight:600;
}
.ad-inline{margin:32px 0;}
.ad-sidebar{padding:10px;}

/* ---------- Legal / Static pages ---------- */
.page-hero{
  padding:56px 0 32px;
  background:linear-gradient(180deg,var(--c-bg-alt),var(--c-bg));
  border-bottom:1px solid var(--c-border);
  text-align:center;
}
.page-hero h1{font-size:clamp(1.9rem,4vw,2.6rem);margin-bottom:.3em;}
.page-hero p{color:var(--c-text-soft);max-width:640px;margin:0 auto;}
.page-content{
  max-width:820px;margin:0 auto;padding:48px 20px 64px;
  font-size:1.02rem;line-height:1.8;color:var(--c-text);
}
.page-content h2{font-size:1.4rem;margin:2em 0 .5em;border-bottom:2px solid var(--c-border);padding-bottom:.3em;}
.page-content h3{font-size:1.15rem;margin:1.4em 0 .4em;}
.page-content p{margin:0 0 1.1em;color:var(--c-text-soft);}
.page-content ul{margin:0 0 1.2em 1.2em;list-style:disc;color:var(--c-text-soft);}
.page-content li{margin-bottom:.5em;}
.page-content a{color:var(--c-accent);font-weight:600;text-decoration:underline;text-underline-offset:3px;}

/* ---------- 404 ---------- */
.error-page{
  min-height:60vh;display:grid;place-items:center;
  text-align:center;padding:60px 20px;
}
.error-code{
  font-family:var(--font-serif);font-size:clamp(5rem,15vw,9rem);
  font-weight:900;line-height:1;margin:0;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.error-page p{color:var(--c-text-soft);font-size:1.1rem;max-width:520px;margin:16px auto 28px;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--c-primary);color:rgba(255,255,255,.85);
  padding:56px 0 24px;margin-top:60px;
}
[data-theme="dark"] .site-footer{background:#050b16;}
.site-footer a{color:rgba(255,255,255,.85);}
.site-footer a:hover{color:var(--c-accent-2);}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px;
}
.footer-col h4{
  color:#fff;font-family:var(--font-body);font-size:.9rem;
  letter-spacing:.08em;text-transform:uppercase;margin:0 0 16px;font-weight:800;
}
.footer-col ul li{margin-bottom:10px;font-size:.92rem;}
.brand-footer{margin-bottom:16px;color:#fff;}
.brand-footer .brand-text{color:#fff;}
.footer-about p{font-size:.92rem;color:rgba(255,255,255,.7);line-height:1.7;max-width:360px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.12);padding-top:24px;
  font-size:.85rem;color:rgba(255,255,255,.6);
}
.footer-tag{font-style:italic;}

/* ---------- Back to top ---------- */
.back-to-top{
  position:fixed;right:20px;bottom:20px;z-index:90;
  width:46px;height:46px;border-radius:50%;
  background:var(--c-accent);color:#fff;display:grid;place-items:center;
  box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all var(--transition);
}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-to-top:hover{background:#ff7d4d;transform:translateY(-3px);}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;}
  .sidebar{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .main-nav{
    position:fixed;top:68px;left:0;right:0;
    background:var(--c-surface);flex-direction:column;
    padding:20px;gap:4px;margin:0;
    border-bottom:1px solid var(--c-border);
    transform:translateY(-120%);transition:transform var(--transition);
    box-shadow:var(--shadow-md);z-index:99;
  }
  .main-nav.open{transform:translateY(0);}
  .main-nav a{padding:12px 4px;border-bottom:1px solid var(--c-border);}
  .main-nav a:last-child{border-bottom:0;}
  .search-form{order:10;width:100%;margin:12px 0 0;}
  .search-form input{width:100%;}
  .menu-toggle{display:flex;margin-left:auto;}
  .theme-toggle{order:9;}
  .header-inner{flex-wrap:wrap;padding:12px 16px;}
  .section{padding:36px 0;}
  .post-grid{grid-template-columns:1fr;gap:22px;}
  .hero{padding:36px 0 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;text-align:center;}
  .article-content{font-size:1rem;}
  .article-content h2{font-size:1.35rem;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .header-inner{gap:10px;}
  .brand-text{font-size:.95rem;}
  .post-body{padding:16px;}
  .widget{padding:18px;}
}

/* ---------- Print ---------- */
@media print{
  .site-header,.site-footer,.sidebar,.ad-slot,.share-row,.back-to-top,.menu-toggle{display:none !important;}
  body{background:#fff;color:#000;}
  a{color:#000;text-decoration:underline;}
}

/* ---------- Accessibility ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}