/*
Theme Name: VST News
Theme URI: https://medicalnewstoday.us
Description: Custom news-magazine theme for Vital Signs Today. Clean, editorial, health-news layout inspired by modern medical publications.
Author: Vital Signs Today
Version: 1.0
Requires at least: 6.0
Tested up to: 7.0
Requires PHP: 7.4
Text Domain: vstnews
*/

/* ============ Tokens ============ */
:root{
  --teal:#0E9F8E; --teal-dark:#0A7D70; --teal-soft:#E6F6F3;
  --navy:#0B1F3A; --ink:#16212E; --body:#33424F; --muted:#6B7A89;
  --line:#E7ECF0; --line-soft:#F0F3F6; --bg:#FFFFFF; --bg-soft:#F5F8F9; --bg-band:#0B1F3A;
  --red:#E5484D; --amber:#F59E0B;
  --maxw:1200px; --radius:14px; --radius-sm:9px;
  --shadow:0 10px 30px rgba(11,31,58,.08); --shadow-sm:0 4px 14px rgba(11,31,58,.07);
  --serif:"Poppins",system-ui,sans-serif;
  --sans:"Inter",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  --c-biomarkers:#0E9F8E; --c-glp-1:#3B82F6; --c-metabolic-health:#8B5CF6;
  --c-longevity:#10B981; --c-diagnostics:#06B6D4; --c-health-news:#E5484D;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--body);background:var(--bg);font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal-dark);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);line-height:1.22;margin:0 0 .5em;font-weight:700}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ============ Header ============ */
.site-topbar{background:var(--navy);color:#cdd7e2;font-size:12.5px;letter-spacing:.3px}
.site-topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:36px}
.site-topbar a{color:#cdd7e2}
.site-topbar .topbar-date{text-transform:uppercase;letter-spacing:.8px;opacity:.85}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60}
.site-header .wrap{display:flex;align-items:center;gap:22px;height:74px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--serif);font-weight:800;font-size:23px;color:var(--navy);letter-spacing:-.3px;white-space:nowrap}
.brand:hover{text-decoration:none}
.brand .pulse{width:34px;height:34px;flex:0 0 34px;border-radius:9px;background:linear-gradient(135deg,var(--teal),var(--teal-dark));position:relative}
.brand .pulse::after{content:"";position:absolute;inset:0;background:no-repeat center/20px 20px url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'><path d='M2 12h4l2-6 4 12 2-6h6'/></svg>")}
.brand small{display:block;font-family:var(--sans);font-weight:500;font-size:10.5px;letter-spacing:.6px;color:var(--muted);text-transform:uppercase;margin-top:1px}
.primary-nav{margin-left:auto}
.primary-nav ul{list-style:none;display:flex;gap:4px;margin:0;padding:0}
.primary-nav a{display:block;padding:9px 13px;color:var(--ink);font-weight:600;font-size:14.5px;border-radius:8px;transition:.15s}
.primary-nav a:hover{background:var(--teal-soft);color:var(--teal-dark);text-decoration:none}
.header-tools{display:flex;align-items:center;gap:6px}
.icon-btn{display:grid;place-items:center;width:40px;height:40px;border-radius:9px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer}
.icon-btn:hover{background:var(--bg-soft)}
.nav-toggle{display:none}
.search-pop{display:none;border-bottom:1px solid var(--line);background:#fff}
.search-pop.open{display:block}
.search-pop form{display:flex;gap:8px;padding:14px 0}
.search-pop input[type=search]{flex:1;padding:13px 16px;border:1px solid var(--line);border-radius:10px;font-size:16px;font-family:var(--sans)}
.btn{display:inline-block;background:var(--teal);color:#fff;font-weight:700;padding:13px 22px;border-radius:10px;border:0;cursor:pointer;font-family:var(--sans);font-size:15px;box-shadow:0 6px 16px rgba(14,159,142,.32);transition:.15s}
.btn:hover{background:var(--teal-dark);text-decoration:none;transform:translateY(-1px)}
.btn-red{background:var(--red);box-shadow:0 6px 16px rgba(229,72,77,.32)}
.btn-red:hover{background:#c93b40}

/* ============ Category labels ============ */
.cat-tag{display:inline-block;font-family:var(--sans);font-weight:800;font-size:11.5px;letter-spacing:.7px;text-transform:uppercase;color:var(--teal-dark)}
.cat-tag:hover{text-decoration:none;opacity:.8}
.cat-pill{display:inline-block;background:var(--teal);color:#fff;font-weight:700;font-size:11px;letter-spacing:.6px;text-transform:uppercase;padding:5px 10px;border-radius:6px}
.cat-pill:hover{text-decoration:none;color:#fff;opacity:.92}

/* ============ Cards ============ */
.card{background:#fff;border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.card .thumb{display:block;position:relative;aspect-ratio:16/10;overflow:hidden;border-radius:var(--radius);background:var(--bg-soft)}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .thumb img,.lead:hover .thumb img{transform:scale(1.04)}
.card .body{padding:14px 2px 4px}
.card h3{font-size:19px;margin:8px 0 6px;letter-spacing:-.2px}
.card h3 a{color:var(--ink)}
.card h3 a:hover{color:var(--teal-dark);text-decoration:none}
.card .excerpt{color:var(--muted);font-size:14.5px;line-height:1.55;margin:0}
.card .meta{margin-top:9px;color:var(--muted);font-size:12.5px;display:flex;gap:8px;align-items:center}
.dot{width:3px;height:3px;border-radius:50%;background:#c5cfd8;display:inline-block}

/* grid */
.grid{display:grid;gap:28px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* ============ Section heads ============ */
.section{padding:40px 0}
.section-soft{background:var(--bg-soft)}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;padding-bottom:14px;border-bottom:2px solid var(--ink)}
.section-head h2{font-size:23px;margin:0;letter-spacing:-.3px;display:flex;align-items:center;gap:10px}
.section-head h2::before{content:"";width:6px;height:24px;border-radius:3px;background:var(--teal);display:inline-block}
.section-head .more{font-size:13.5px;font-weight:700;color:var(--teal-dark)}

/* ============ Hero ============ */
.hero{padding:34px 0 6px}
.hero-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:34px}
.lead .thumb{aspect-ratio:16/9;border-radius:var(--radius)}
.lead h2{font-size:34px;line-height:1.15;margin:14px 0 10px;letter-spacing:-.6px}
.lead h2 a{color:var(--ink)}
.lead h2 a:hover{color:var(--teal-dark);text-decoration:none}
.lead .excerpt{font-size:17px;color:var(--body);margin:0 0 10px;max-width:60ch}
.lead .meta{color:var(--muted);font-size:13px;display:flex;gap:8px;align-items:center}
.side-list{display:flex;flex-direction:column;gap:18px}
.side-item{display:grid;grid-template-columns:108px 1fr;gap:14px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.side-item:last-child{border-bottom:0;padding-bottom:0}
.side-item .thumb{aspect-ratio:1/1;border-radius:10px}
.side-item h3{font-size:15.5px;margin:6px 0 0;line-height:1.3}
.side-item h3 a{color:var(--ink)}
.side-item h3 a:hover{color:var(--teal-dark);text-decoration:none}
.side-item .cat-tag{font-size:10.5px}

/* ============ Newsletter band ============ */
.band{background:linear-gradient(135deg,#0B1F3A,#123056);color:#fff;border-radius:20px;padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;box-shadow:var(--shadow)}
.band h2{color:#fff;font-size:27px;margin:0 0 6px}
.band p{margin:0;color:#bcc8d6;max-width:46ch}
.band form{display:flex;gap:10px;flex-wrap:wrap}
.band input[type=email]{padding:14px 16px;border-radius:10px;border:0;font-size:15px;min-width:260px;font-family:var(--sans)}

/* trust strip */
.trust{display:flex;gap:30px;flex-wrap:wrap;justify-content:center;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted);font-size:13.5px;font-weight:600}
.trust span{display:flex;align-items:center;gap:8px}
.trust svg{color:var(--teal)}

/* ============ Single article ============ */
.article-head{padding:30px 0 8px}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:14px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--teal-dark)}
.article-title{font-size:42px;line-height:1.12;letter-spacing:-.9px;max-width:18ch;margin:8px 0 14px}
.article-dek{font-size:20px;line-height:1.5;color:var(--body);max-width:64ch;margin:0 0 20px;font-weight:400}
.byline{display:flex;align-items:center;gap:13px;flex-wrap:wrap;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.byline .avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--teal),var(--teal-dark));display:grid;place-items:center;color:#fff;font-weight:800;font-family:var(--serif);font-size:15px;flex:0 0 46px}
.byline .who{font-size:14px;line-height:1.4}
.byline .who b{color:var(--ink);font-weight:700}
.byline .who span{color:var(--muted)}
.byline .reviewed{margin-left:auto;font-size:12.5px;color:var(--teal-dark);font-weight:700;background:var(--teal-soft);padding:7px 12px;border-radius:8px}
.featured-wrap{margin:24px 0 8px}
.featured-wrap img{width:100%;border-radius:var(--radius);aspect-ratio:16/9;object-fit:cover}
.featured-cap{font-size:12.5px;color:var(--muted);margin-top:8px;text-align:center}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;padding:26px 0 50px}
.article-body{max-width:760px;font-size:18px}
.article-body p{margin:0 0 1.25em}
.article-body h2{font-size:28px;margin:1.7em 0 .5em;letter-spacing:-.4px}
.article-body h3{font-size:21px;margin:1.4em 0 .4em}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.3em}
.article-body li{margin:.4em 0}
.article-body a{color:var(--teal-dark);text-decoration:underline;text-underline-offset:2px}
.article-body img{border-radius:10px;margin:1.4em 0}
.article-body blockquote{margin:1.5em 0;padding:14px 22px;border-left:4px solid var(--teal);background:var(--bg-soft);border-radius:0 10px 10px 0;font-size:18px;color:var(--ink)}
.article-body h2:first-of-type{margin-top:.4em}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:var(--bg-soft)}
.article-body :where(h2,h3) strong{font-weight:700}
.kt-box{background:var(--teal-soft);border:1px solid #cdeae5;border-radius:var(--radius);padding:18px 22px;margin:24px 0}
.kt-box b{color:var(--teal-dark)}
.sources-box{margin-top:30px;padding-top:22px;border-top:1px solid var(--line)}
.disclaimer-note{margin-top:24px;font-size:14px;color:var(--muted);background:var(--bg-soft);border-radius:10px;padding:14px 18px}

/* sidebar */
.sidebar{align-self:start;position:sticky;top:94px;display:flex;flex-direction:column;gap:26px}
.widget{border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.widget h4{font-size:13px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin:0 0 14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.widget .side-item{grid-template-columns:64px 1fr;gap:11px;padding-bottom:14px}
.widget .side-item .thumb{border-radius:8px}
.widget .side-item h3{font-size:14px}
.widget.cta{background:linear-gradient(135deg,#0B1F3A,#123056);border:0;color:#fff}
.widget.cta h4{color:#9fb0c2;border-color:rgba(255,255,255,.15)}
.widget.cta p{color:#c3cedb;font-size:14px;margin:0 0 14px}
.widget.cta input{width:100%;padding:12px 14px;border-radius:9px;border:0;margin-bottom:10px;font-family:var(--sans)}
.widget.cta .btn{width:100%}

/* author + related */
.author-box{display:flex;gap:18px;align-items:flex-start;background:var(--bg-soft);border-radius:var(--radius);padding:22px;margin:10px 0 0;max-width:760px}
.author-box .avatar{width:60px;height:60px;flex:0 0 60px;border-radius:50%;background:linear-gradient(135deg,var(--teal),var(--teal-dark));display:grid;place-items:center;color:#fff;font-weight:800;font-family:var(--serif)}
.author-box h4{margin:0 0 6px;font-size:17px}
.author-box p{margin:0;font-size:14.5px;color:var(--muted)}
.share{display:flex;gap:10px;align-items:center;margin:26px 0 6px;max-width:760px}
.share span{font-size:13px;font-weight:700;color:var(--muted)}
.share a{width:38px;height:38px;border-radius:9px;border:1px solid var(--line);display:grid;place-items:center;color:var(--ink)}
.share a:hover{background:var(--teal);color:#fff;border-color:var(--teal)}

/* ============ Archive ============ */
.page-hero{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:40px 0}
.page-hero h1{font-size:36px;letter-spacing:-.6px;margin:0 0 8px}
.page-hero p{margin:0;color:var(--muted);max-width:65ch;font-size:16px}
.pagination{display:flex;gap:8px;justify-content:center;margin:36px 0 10px;flex-wrap:wrap}
.pagination a,.pagination span{padding:10px 15px;border:1px solid var(--line);border-radius:9px;color:var(--ink);font-weight:600}
.pagination .current{background:var(--teal);color:#fff;border-color:var(--teal)}
.pagination a:hover{background:var(--bg-soft);text-decoration:none}

/* ============ Page (about etc) ============ */
.page-body{max-width:760px;margin:0 auto;padding:36px 0 56px;font-size:18px}
.page-body h2{font-size:26px;margin:1.5em 0 .4em}
.page-body ul{padding-left:1.3em}

/* ============ Footer ============ */
.site-footer{background:var(--navy);color:#aebccb;margin-top:50px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:34px;padding:50px 0 38px}
.site-footer h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.9px;margin:0 0 16px}
.site-footer a{color:#aebccb}
.site-footer a:hover{color:#fff}
.site-footer .fbrand{font-family:var(--serif);font-weight:800;font-size:21px;color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:12px}
.site-footer .fbrand .pulse{width:30px;height:30px;flex:0 0 30px}
.footer-top ul{list-style:none;margin:0;padding:0;line-height:2.1;font-size:14.5px}
.footer-about{font-size:14px;line-height:1.7;max-width:34ch}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;font-size:12.5px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:#8294a6}
.footer-disclaimer{max-width:62ch;line-height:1.6}

/* ============ Responsive ============ */
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:26px}
  .article-layout{grid-template-columns:1fr;gap:0}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap;margin-top:30px}
  .sidebar .widget{flex:1 1 280px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:760px){
  body{font-size:16px}
  .primary-nav{display:none}
  .nav-toggle{display:grid}
  .primary-nav.open{display:block;position:absolute;top:74px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .primary-nav.open ul{flex-direction:column;padding:10px 16px}
  .primary-nav.open a{padding:13px 8px;border-radius:0;border-bottom:1px solid var(--line-soft)}
  .lead h2{font-size:27px}
  .article-title{font-size:30px}
  .article-dek{font-size:17px}
  .grid-3,.grid-4{grid-template-columns:1fr}
  .band{padding:28px 22px}
  .footer-top{grid-template-columns:1fr;gap:24px}
  .section{padding:30px 0}
}