/* ========================================================================
 * pages/blog_index.css
 *
 * Styles specific to the blog index page.
 * Shared tokens, nav, footer, buttons, and animation primitives come from
 * static/css/public-shared.css (loaded before this file).
 * ======================================================================== */



/* HERO */
.hero{padding:132px 24px 40px;position:relative;overflow:hidden;}

.hero-glow{position:absolute;top:-200px;left:50%;transform:translateX(-50%);width:900px;height:900px;border-radius:50%;background:radial-gradient(circle,rgba(13,148,136,.06) 0%,rgba(13,148,136,.01) 40%,transparent 70%);pointer-events:none;}

.hero-in{max-width:1120px;margin:0 auto;position:relative;}

.hero-lbl{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--teal-text);margin-bottom:14px;padding:4px 12px;border-radius:var(--r-full);background:var(--teal-10);border:1px solid color-mix(in srgb,var(--teal) 18%,transparent);}

.hero h1{font-size:clamp(2.2rem,5vw,3.2rem);font-weight:700;letter-spacing:-.03em;line-height:1.08;margin-bottom:16px;max-width:720px;text-wrap:pretty;}

.hero p{font-size:17px;color:var(--t2);max-width:560px;line-height:1.62;}


/* SEARCH + RSS */
.utility-row{max-width:1120px;margin:28px auto 0;padding:0 24px;display:flex;gap:12px;flex-wrap:wrap;align-items:center;justify-content:space-between;}

.search{position:relative;flex:1;max-width:380px;min-width:240px;}

.search input{width:100%;height:40px;background:var(--surface);border:1px solid var(--bd);border-radius:var(--r-sm);padding:0 14px 0 38px;font-family:var(--font);font-size:14px;color:var(--t1);transition:border-color var(--fast),box-shadow var(--fast);}

.search input::placeholder{color:var(--t3);}

.search input:focus{outline:none;border-color:var(--teal-text);box-shadow:0 0 0 3px var(--teal-10);}

.search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--t3);}

.rss{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--t3);padding:6px 10px;border-radius:var(--r-sm);transition:color var(--fast),background var(--fast);}

.rss:hover{color:var(--teal-text);background:var(--teal-10);}

.rss svg{width:13px;height:13px;}


/* FILTERS */
.filters-wrap{max-width:1120px;margin:20px auto 0;padding:0 24px;}

.filters-scroll{display:flex;gap:8px;flex-wrap:wrap;align-items:center;}

.filter{padding:6px 14px;font-size:13px;font-weight:500;font-family:var(--font);color:var(--t2);background:transparent;border:1px solid var(--bd);border-radius:var(--r-full);cursor:pointer;transition:all var(--fast);white-space:nowrap;}

.filter:hover{color:var(--t1);border-color:var(--bd-h);background:var(--surface);}

.filter.on{color:#fff;background:var(--teal-text);border-color:var(--teal-text);}

.filter-count{display:inline-block;margin-left:6px;padding:1px 6px;font-size:10px;font-weight:600;color:var(--t3);background:var(--bg2);border-radius:var(--r-full);}

.filter.on .filter-count{color:rgba(255,255,255,.85);background:rgba(255,255,255,.16);}


/* FEATURED */
.featured-wrap{max-width:1120px;margin:36px auto 0;padding:0 24px;}

.featured{display:grid;grid-template-columns:1.15fr 1fr;gap:28px;padding:28px;border-radius:var(--r-xl);border:1px solid var(--bd);background:var(--surface);box-shadow:var(--sh-card);position:relative;overflow:hidden;transition:border-color var(--base),box-shadow var(--base),transform var(--base);}

.featured:hover{border-color:var(--bd-h);box-shadow:var(--sh-lg);transform:translateY(-2px);}

.featured-viz{position:relative;border-radius:var(--r-lg);overflow:hidden;background:linear-gradient(135deg,#0d9488 0%,#0f766e 55%,#134e4a 100%);min-height:260px;display:flex;align-items:flex-end;padding:22px;}

.featured-viz::before{content:'';position:absolute;inset:0;background:
  radial-gradient(circle at 20% 30%,rgba(255,255,255,.18) 0%,transparent 45%),
  radial-gradient(circle at 85% 75%,rgba(96,165,250,.28) 0%,transparent 50%);
  pointer-events:none;}

.featured-viz::after{content:'';position:absolute;inset:0;background-image:
  linear-gradient(90deg,transparent 24px,rgba(255,255,255,.06) 25px),
  linear-gradient(0deg,transparent 24px,rgba(255,255,255,.04) 25px);
  background-size:25px 25px;mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);}

.viz-bubble{position:absolute;padding:9px 14px;background:rgba(255,255,255,.12);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-md);font-size:11px;color:#fff;font-weight:500;display:flex;align-items:center;gap:7px;}

.viz-bubble svg{width:12px;height:12px;opacity:.85;}

.viz-bubble.b1{top:26px;left:26px;animation:floatA 5s ease-in-out infinite;}

.viz-bubble.b2{top:110px;right:32px;animation:floatB 6s ease-in-out infinite;}

.viz-bubble.b3{bottom:24px;left:36px;animation:floatA 7s ease-in-out infinite;animation-delay:-2s;}

@keyframes floatA{0%,100%{transform:translateY(0);}50%{transform:translateY(-8px);}}

@keyframes floatB{0%,100%{transform:translateY(0);}50%{transform:translateY(-10px);}}

.featured-tag{position:absolute;top:20px;right:20px;font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#fff;padding:4px 10px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.22);border-radius:var(--r-full);backdrop-filter:blur(6px);}

.featured-content{display:flex;flex-direction:column;justify-content:center;}

.featured-cat{display:inline-block;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--teal-text);margin-bottom:12px;}

.featured-content h2{font-size:28px;font-weight:700;letter-spacing:-.02em;line-height:1.18;margin-bottom:12px;text-wrap:pretty;}

.featured-content p{font-size:14.5px;color:var(--t2);line-height:1.62;margin-bottom:18px;}

.featured-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--t3);margin-bottom:18px;}

.avatar{width:26px;height:26px;border-radius:50%;background:linear-gradient(135deg,#0d9488,#134e4a);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:#fff;}

.meta-dot{width:3px;height:3px;border-radius:50%;background:var(--t4);}

.featured-cta{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--teal-text);align-self:flex-start;transition:gap var(--fast);}

.featured:hover .featured-cta{gap:10px;}

.featured-cta svg{width:14px;height:14px;}


/* GRID */
.grid-wrap{max-width:1120px;margin:0 auto;padding:44px 24px 24px;}

.grid-hd{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:20px;}

.grid-hd h3{font-size:15px;font-weight:600;letter-spacing:-.01em;}

.grid-hd .count{font-size:12px;color:var(--t3);}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}

.card{display:flex;flex-direction:column;border-radius:var(--r-lg);border:1px solid var(--bd);background:var(--surface);overflow:hidden;transition:border-color var(--base),box-shadow var(--base),transform var(--base);}

.card:hover{border-color:var(--bd-h);box-shadow:var(--sh-lg);transform:translateY(-2px);}

.card-thumb{height:150px;position:relative;overflow:hidden;display:flex;align-items:flex-end;padding:14px;}

.card-thumb::before{content:'';position:absolute;inset:0;background-image:linear-gradient(90deg,transparent 19px,rgba(255,255,255,.06) 20px),linear-gradient(0deg,transparent 19px,rgba(255,255,255,.05) 20px);background-size:20px 20px;mask-image:radial-gradient(ellipse at center,#000 35%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse at center,#000 35%,transparent 80%);}

.card-thumb.t-product{background:linear-gradient(135deg,#0d9488 0%,#0f766e 100%);}

.card-thumb.t-features{background:linear-gradient(135deg,#6366f1 0%,#4338ca 100%);}

.card-thumb.t-business{background:linear-gradient(135deg,#ea580c 0%,#c2410c 100%);}

.card-thumb.t-guide{background:linear-gradient(135deg,#0891b2 0%,#0e7490 100%);}

.card-thumb.t-engineering{background:linear-gradient(135deg,#475569 0%,#1e293b 100%);}

.card-thumb.t-security{background:linear-gradient(135deg,#be123c 0%,#831843 100%);}

.card-icon{position:absolute;top:14px;right:14px;width:34px;height:34px;border-radius:var(--r-sm);background:rgba(255,255,255,.14);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;color:#fff;}

.card-icon svg{width:16px;height:16px;}

.card-cat-chip{position:relative;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:#fff;padding:4px 10px;background:rgba(0,0,0,.3);border:1px solid rgba(255,255,255,.22);border-radius:var(--r-full);backdrop-filter:blur(6px);}

.card-body{padding:18px 20px;display:flex;flex-direction:column;flex:1;}

.card h2{font-size:16.5px;font-weight:600;letter-spacing:-.015em;line-height:1.32;margin-bottom:8px;color:var(--t1);}

.card-desc{font-size:13.5px;color:var(--t2);line-height:1.58;flex:1;margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

.card-meta{display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--bd);}

.card-meta-left{display:flex;align-items:center;gap:9px;font-size:11.5px;color:var(--t3);}

.card-avatar{width:22px;height:22px;border-radius:50%;background:linear-gradient(135deg,#0d9488,#134e4a);display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;color:#fff;}

.card-arrow{width:16px;height:16px;color:var(--t3);transition:color var(--fast),transform var(--fast);}

.card:hover .card-arrow{color:var(--teal-text);transform:translateX(3px);}


/* NEWSLETTER */
.newsletter{max-width:1120px;margin:48px auto 0;padding:0 24px;}

.newsletter-in{padding:36px 40px;border-radius:var(--r-xl);background:var(--bg2);border:1px solid var(--bd);display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;}

.newsletter h3{font-size:20px;font-weight:700;letter-spacing:-.018em;margin-bottom:6px;}

.newsletter p{font-size:14px;color:var(--t2);line-height:1.55;}

.newsletter-form{display:flex;gap:8px;}

.newsletter-form input{height:40px;min-width:240px;background:var(--surface);border:1px solid var(--bd);border-radius:var(--r-sm);padding:0 14px;font-family:var(--font);font-size:14px;color:var(--t1);transition:border-color var(--fast),box-shadow var(--fast);}

.newsletter-form input:focus{outline:none;border-color:var(--teal-text);box-shadow:0 0 0 3px var(--teal-10);}

.newsletter-form input::placeholder{color:var(--t3);}


/* EMPTY */
.empty{grid-column:1/-1;text-align:center;padding:80px 24px;color:var(--t3);}

.empty h3{font-size:18px;font-weight:600;color:var(--t2);margin-bottom:6px;}


/* RESPONSIVE */
@media(max-width:1024px){.grid{grid-template-columns:repeat(2,1fr);}.featured{grid-template-columns:1fr;}.featured-viz{min-height:200px;}}

@media(max-width:800px){.newsletter-in{grid-template-columns:1fr;}.newsletter-form input{min-width:0;width:100%;}}

@media(max-width:640px){
  .nav-link{display:none;}.nav-ham{display:inline-flex;}
  .hero{padding:112px 20px 24px;}
  .grid{grid-template-columns:1fr;}
  .featured{padding:20px;}
  .featured-content h2{font-size:22px;}
  .utility-row{flex-direction:column;align-items:stretch;}
  .search{max-width:none;}
  .filters-scroll{overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px;margin:0 -24px;padding-left:24px;padding-right:24px;}
  .filter{flex-shrink:0;}
  .newsletter-in{padding:24px;}
  .newsletter-form{flex-direction:column;}
  .footer-in{justify-content:center;text-align:center;flex-direction:column;}
}