/* Tech Spot Blog — styles. Depends on ../colors_and_type.css */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);color:var(--fg-1);background:#fff}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
.narrow{max-width:760px;margin:0 auto;padding:0 28px}
.display{font-family:var(--font-display);font-weight:900;letter-spacing:-.03em;line-height:1.08}
.eyebrow{font-family:var(--font-sans);font-weight:800;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--spot-orange-500)}
.icon{width:20px;height:20px;display:inline-flex;flex:none}

/* logo */
.logo{font-family:var(--font-display);font-weight:900;letter-spacing:-.03em;font-size:23px;line-height:1;display:inline-flex;align-items:center}
.logo .pill{border-radius:999px;padding:.08em .4em .16em;display:inline-block}
.logo.onlight .t{color:var(--spot-blue-900)} .logo.onlight .pill{background:var(--spot-blue-500);color:#fff}
.logo.onink .t{color:#fff} .logo.onink .pill{background:#fff;color:var(--spot-blue-900)}
.logo .sfx{font-family:var(--font-display);font-weight:800;font-size:12px;color:var(--fg-3);letter-spacing:.1em;text-transform:uppercase;margin-left:7px;align-self:center}

/* header */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.hbar{height:72px;display:flex;align-items:center;gap:26px}
.nav{display:flex;gap:6px;margin-left:8px}
.nav a{font-weight:600;font-size:14.5px;color:var(--fg-2);padding:8px 14px;border-radius:999px;transition:background .14s,color .14s}
.nav a:hover{background:var(--neutral-100);color:var(--spot-blue-700)}
.nav a.active{color:var(--spot-blue-700);background:var(--spot-blue-50)}
.hactions{margin-left:auto;display:flex;align-items:center;gap:10px}
.hsearch{display:flex;align-items:center;gap:8px;background:var(--neutral-100);border:1.5px solid transparent;border-radius:999px;padding:9px 15px;width:230px}
.hsearch:focus-within{background:#fff;border-color:var(--spot-blue-300);box-shadow:var(--focus-ring)}
.hsearch input{flex:1;border:0;background:none;outline:none;font-family:inherit;font-size:14px;color:var(--fg-1)}
.hsearch input::placeholder{color:var(--fg-3)}
.btn{font-weight:700;border:0;border-radius:999px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:transform .14s,background .16s,box-shadow .16s;white-space:nowrap}
.btn:active{transform:scale(.97)}
.btn-pri{background:var(--spot-blue-500);color:#fff;box-shadow:var(--shadow-blue);padding:11px 20px;font-size:14px}
.btn-pri:hover{background:var(--spot-blue-600)}
.btn-acc{background:var(--spot-orange-500);color:#fff;box-shadow:var(--shadow-orange);padding:13px 22px;font-size:15px}
.btn-acc:hover{background:var(--spot-orange-600)}
.btn-ghost{background:#fff;color:var(--spot-blue-700);box-shadow:inset 0 0 0 1.5px var(--spot-blue-200);padding:10px 18px;font-size:14px}
.btn-ghost:hover{background:var(--spot-blue-50)}
.btn-lg{padding:15px 26px;font-size:16px}
.hamb{display:none;width:44px;height:44px;border-radius:11px;background:var(--neutral-100);border:0;cursor:pointer;align-items:center;justify-content:center}

/* hero / featured */
.blog-hero{padding:44px 0 8px}
.feat{display:grid;grid-template-columns:1.15fr 1fr;gap:0;border-radius:var(--radius-2xl);overflow:hidden;box-shadow:var(--shadow-lg);background:var(--spot-blue-900)}
.feat .ph{position:relative;min-height:380px;background:linear-gradient(135deg,var(--spot-blue-600),var(--spot-blue-900));display:flex;align-items:center;justify-content:center;overflow:hidden}
.feat .ph .circle{position:absolute;width:300px;height:300px;border-radius:999px;background:var(--spot-orange-500);top:-70px;right:-60px;opacity:.92}
.feat .ph .gi{position:relative;color:rgba(255,255,255,.85)}
.feat .ph .gi i,.feat .ph .gi svg{width:96px;height:96px;stroke-width:1.2}
.feat .bd{padding:48px 44px;color:#fff;display:flex;flex-direction:column;justify-content:center}
.feat .bd .eyebrow{color:var(--spot-blue-200)}
.feat .bd h1{font-family:var(--font-display);font-weight:900;letter-spacing:-.03em;line-height:1.08;font-size:40px;margin-top:14px}
.feat .bd p{font-size:16.5px;line-height:1.6;color:var(--spot-blue-100);margin-top:16px}
.feat .bd .by{display:flex;align-items:center;gap:12px;margin-top:26px}
.feat .bd .by .av{width:42px;height:42px;border-radius:999px;background:var(--spot-orange-500);color:#fff;font-family:var(--font-display);font-weight:800;display:flex;align-items:center;justify-content:center}
.feat .bd .by .nm{font-weight:700;font-size:14px}
.feat .bd .by .mt{font-size:13px;color:var(--spot-blue-200)}

/* category filter */
.filters{display:flex;gap:10px;flex-wrap:wrap;padding:36px 0 24px}
.chip{font-weight:600;font-size:14px;padding:9px 17px;border-radius:999px;background:var(--neutral-100);color:var(--fg-2);border:0;cursor:pointer;transition:background .14s,color .14s}
.chip:hover{background:var(--neutral-200)}
.chip.active{background:var(--spot-blue-500);color:#fff}

/* post grid */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:24px;gap:16px;flex-wrap:wrap}
.sec-head h2{font-family:var(--font-display);font-weight:800;font-size:28px;letter-spacing:-.02em}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;background:#fff;display:flex;flex-direction:column;transition:transform .18s cubic-bezier(.2,.7,.2,1),box-shadow .18s;cursor:pointer}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card .thumb{position:relative;height:184px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.card .thumb .circle{position:absolute;width:160px;height:160px;border-radius:999px;opacity:.9}
.card .thumb i,.card .thumb svg{position:relative;width:60px;height:60px;stroke-width:1.3;color:#fff}
.card .cat{position:absolute;top:14px;left:14px;z-index:2;font-weight:700;font-size:11px;letter-spacing:.04em;text-transform:uppercase;background:#fff;color:var(--spot-blue-700);padding:5px 11px;border-radius:999px}
.card .bd{padding:20px;display:flex;flex-direction:column;flex:1}
.card .bd h3{font-family:var(--font-display);font-weight:800;font-size:19px;line-height:1.25;letter-spacing:-.01em}
.card .bd p{font-size:14px;line-height:1.6;color:var(--fg-2);margin-top:9px}
.card .bd .foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--fg-3)}
.card .bd .foot .av{width:30px;height:30px;border-radius:999px;color:#fff;font-family:var(--font-display);font-weight:700;font-size:12px;display:flex;align-items:center;justify-content:center;flex:none}
.card .bd .foot .dot{width:3px;height:3px;border-radius:999px;background:var(--fg-3)}

/* newsletter band */
.news-band{margin:56px 0 0;position:relative;overflow:hidden;border-radius:var(--radius-2xl);background:var(--spot-blue-900);color:#fff;padding:54px 48px;text-align:center}
.news-band .circle{position:absolute;width:260px;height:260px;border-radius:999px;background:var(--spot-orange-500);bottom:-110px;left:-60px;opacity:.85}
.news-band h2{position:relative;font-family:var(--font-display);font-weight:900;font-size:34px;letter-spacing:-.02em}
.news-band p{position:relative;color:var(--spot-blue-100);font-size:16px;margin-top:10px}
.news-form{position:relative;display:flex;gap:10px;max-width:480px;margin:26px auto 0}
.news-form input{flex:1;background:rgba(255,255,255,.1);border:1px solid var(--border-on-ink);border-radius:999px;padding:14px 20px;color:#fff;font-family:inherit;font-size:15px;outline:none}
.news-form input::placeholder{color:var(--spot-blue-300)}

/* footer */
footer{background:var(--spot-blue-900);color:#fff;padding:60px 0 34px;margin-top:64px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px}
footer h4{font-weight:700;font-size:14px;margin-bottom:15px}
footer a,footer p{font-size:14px;color:var(--spot-blue-200);line-height:1.95}
footer a:hover{color:#fff}
.foot-links{display:flex;flex-direction:column}
.foot-tag{font-size:14px;line-height:1.6;color:var(--spot-blue-200);margin-top:14px;max-width:280px}
.foot-bottom{border-top:1px solid var(--border-on-ink);margin-top:46px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--spot-blue-300)}

/* ============ ARTICLE PAGE ============ */
.art-head{padding:42px 0 30px}
.art-head .back{display:inline-flex;align-items:center;gap:7px;font-weight:700;font-size:14px;color:var(--spot-blue-600);margin-bottom:24px}
.art-head .cat{display:inline-block;font-weight:700;font-size:12px;letter-spacing:.04em;text-transform:uppercase;background:var(--spot-blue-50);color:var(--spot-blue-700);padding:6px 13px;border-radius:999px}
.art-head h1{font-family:var(--font-display);font-weight:900;letter-spacing:-.03em;line-height:1.1;font-size:46px;margin-top:18px}
.art-head .lead{font-size:19px;line-height:1.6;color:var(--fg-2);margin-top:18px}
.art-meta{display:flex;align-items:center;gap:14px;margin-top:28px;padding-bottom:28px;border-bottom:1px solid var(--border)}
.art-meta .av{width:48px;height:48px;border-radius:999px;background:var(--spot-orange-500);color:#fff;font-family:var(--font-display);font-weight:800;font-size:17px;display:flex;align-items:center;justify-content:center}
.art-meta .nm{font-weight:700;font-size:15px}
.art-meta .mt{font-size:13px;color:var(--fg-3)}
.art-meta .share{margin-left:auto;display:flex;gap:8px}
.art-meta .share button{width:40px;height:40px;border-radius:999px;background:var(--neutral-100);border:0;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--fg-2)}
.art-meta .share button:hover{background:var(--spot-blue-50);color:var(--spot-blue-600)}
.art-cover{height:360px;border-radius:var(--radius-xl);margin:30px 0;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--spot-blue-600),var(--spot-blue-900))}
.art-cover .circle{position:absolute;width:340px;height:340px;border-radius:999px;background:var(--spot-orange-500);top:-90px;right:-70px;opacity:.9}
.art-cover i,.art-cover svg{position:relative;width:110px;height:110px;stroke-width:1.1;color:rgba(255,255,255,.9)}
.prose{font-size:17.5px;line-height:1.75;color:var(--fg-1)}
.prose h2{font-family:var(--font-display);font-weight:800;font-size:28px;letter-spacing:-.02em;margin:38px 0 14px}
.prose h3{font-family:var(--font-display);font-weight:800;font-size:21px;margin:28px 0 10px}
.prose p{margin:16px 0;color:var(--fg-1)}
.prose ul{margin:16px 0;padding-left:24px}
.prose li{margin:9px 0;color:var(--fg-1)}
.prose strong{font-weight:700}
.prose a{color:var(--spot-blue-600);font-weight:600;text-decoration:underline;text-decoration-color:var(--spot-blue-200);text-underline-offset:3px}
.callout{background:var(--spot-blue-50);border-left:4px solid var(--spot-blue-500);border-radius:0 var(--radius-md) var(--radius-md) 0;padding:18px 22px;margin:26px 0}
.callout p{margin:0;color:var(--spot-blue-900);font-size:16px}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin:34px 0;padding-top:28px;border-top:1px solid var(--border)}
.tags .t{font-weight:600;font-size:13px;color:var(--fg-2);background:var(--neutral-100);padding:7px 14px;border-radius:999px}
.author-box{display:flex;gap:18px;align-items:flex-start;background:var(--neutral-50);border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px;margin:34px 0}
.author-box .av{width:60px;height:60px;border-radius:999px;background:var(--spot-orange-500);color:#fff;font-family:var(--font-display);font-weight:800;font-size:22px;display:flex;align-items:center;justify-content:center;flex:none}
.author-box .nm{font-family:var(--font-display);font-weight:800;font-size:18px}
.author-box .rl{font-size:13px;color:var(--spot-blue-600);font-weight:700;margin-top:2px}
.author-box p{font-size:14.5px;line-height:1.6;color:var(--fg-2);margin-top:8px}

@media(max-width:980px){.grid{grid-template-columns:1fr 1fr}.feat{grid-template-columns:1fr}.feat .ph{min-height:240px}.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:680px){
  .grid{grid-template-columns:1fr}.nav,.hsearch{display:none}.hamb{display:flex}
  .feat .bd h1{font-size:30px}.art-head h1{font-size:32px}.prose{font-size:16.5px}
  .foot-grid{grid-template-columns:1fr}.news-form{flex-direction:column}
}