/*
Theme Name:   Reading Room
Theme URI:    https://tirads-calculator.com/
Author:       tirads-calculator.com
Author URI:   https://tirads-calculator.com/
Description:  Clinical, dual-audience medical theme built for tirads-calculator.com. "Reading Room" pairs a radiology reading-room palette (slate + surgical teal) with strong E-E-A-T features: medical-reviewer bylines, last-updated dates, disclaimer footers, and fast, accessible article layouts for both patients and clinicians.
Version:      1.0.0
Requires at least: 6.0
Tested up to: 6.6
Requires PHP: 7.4
License:      GNU General Public License v2 or later
License URI:  http://www.gnu.org/licenses/gpl-2.0.html
Text Domain:  reading-room
Tags:         blog, medical, custom-colors, custom-menu, featured-images, editor-style, threaded-comments, translation-ready
*/

/* ============================================================
   DESIGN TOKENS  (consistent with the TI-RADS calculator plugin)
   ============================================================ */
:root{
  --ink:#0F1B24; --ink-2:#33474F; --muted:#5F7379;
  --paper:#FBFCFC; --surface:#FFFFFF; --line:#DCE5E5; --line-2:#EDF2F2;
  --teal:#0E8C7F; --teal-d:#0A6D62; --teal-light:#E6F4F1; --teal-ring:rgba(14,140,127,.28);
  --tr1:#15803D; --tr2:#5C9A16; --tr3:#CA8A04; --tr4:#EA580C; --tr5:#DC2626;
  --amber-bg:#FFF9EE; --amber-line:#F1DFB8;
  --shadow:0 1px 2px rgba(15,27,36,.05),0 10px 30px rgba(15,27,36,.06);
  --radius:14px;
  --disp:'Space Grotesk',ui-sans-serif,system-ui,sans-serif;
  --body:'IBM Plex Sans',ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --wrap:1140px; --read:720px;
}

/* ============================================================
   RESET / BASE
   ============================================================ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal-d);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--disp);font-weight:700;letter-spacing:-.01em;color:var(--ink);line-height:1.2;margin:1.6em 0 .5em}
h1{font-size:clamp(28px,4.4vw,40px);margin-top:0}
h2{font-size:clamp(22px,3vw,28px)}
h3{font-size:20px}
p{margin:0 0 1.1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 clamp(16px,4vw,28px)}
.screen-reader-text{position:absolute!important;clip:rect(1px,1px,1px,1px);width:1px;height:1px;overflow:hidden}
.skip-link{position:absolute;left:-999px;top:auto}
.skip-link:focus{left:12px;top:12px;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px;z-index:9999}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--disp);font-weight:700;font-size:18px;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand .mark{width:30px;height:30px;border-radius:8px;background:var(--ink);display:grid;place-items:center;color:#fff;font-weight:700;font-size:13px;font-family:var(--disp)}
.brand .mark span{background:linear-gradient(180deg,var(--tr1),var(--tr3),var(--tr5));-webkit-background-clip:text;background-clip:text;color:transparent}
.main-nav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0;align-items:center}
.main-nav a{font-size:14.5px;font-weight:500;color:var(--ink-2);padding:8px 12px;border-radius:8px}
.main-nav a:hover{background:var(--teal-light);color:var(--teal-d);text-decoration:none}
.main-nav .cta a,.nav-cta{background:var(--teal);color:#fff!important;font-weight:600;padding:9px 15px;border-radius:9px}
.main-nav .cta a:hover,.nav-cta:hover{background:var(--teal-d);text-decoration:none}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;padding:8px 10px;cursor:pointer}
.nav-toggle svg{width:20px;height:20px;stroke:var(--ink)}
@media(max-width:820px){
  .main-nav{position:absolute;top:64px;left:0;right:0;background:var(--surface);border-bottom:1px solid var(--line);display:none}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;padding:10px}
  .nav-toggle{display:inline-flex}
}

/* ============================================================
   HERO (front page)
   ============================================================ */
.hero{background:linear-gradient(180deg,#fff, var(--paper));border-bottom:1px solid var(--line-2)}
.hero .wrap{padding-top:clamp(36px,6vw,64px);padding-bottom:clamp(28px,4vw,44px)}
.hero .eyebrow{font-family:var(--disp);font-weight:600;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--teal-d)}
.hero h1{margin:.3em 0 .35em;max-width:16ch}
.hero p{font-size:18px;color:var(--ink-2);max-width:60ch}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.btn{font-family:var(--body);font-weight:600;font-size:15px;padding:13px 22px;border-radius:10px;display:inline-flex;align-items:center;gap:9px;cursor:pointer;border:1px solid var(--line);background:#fff;color:var(--ink)}
.btn:hover{text-decoration:none;border-color:var(--teal);color:var(--teal-d)}
.btn.primary{background:var(--teal);border-color:var(--teal);color:#fff}
.btn.primary:hover{background:var(--teal-d);color:#fff}

/* audience chips */
.aud-chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
.aud-chip{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;color:var(--ink-2);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:7px 13px}
.aud-chip .d{width:9px;height:9px;border-radius:50%}

/* ============================================================
   LAYOUT: content + sidebar
   ============================================================ */
.site-main{padding:clamp(30px,5vw,52px) 0}
.layout{display:grid;grid-template-columns:1fr;gap:36px}
@media(min-width:960px){.layout.has-sidebar{grid-template-columns:minmax(0,1fr) 300px}}

/* ============================================================
   ARTICLE (single)
   ============================================================ */
.article{max-width:var(--read)}
.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:14px}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--teal-d)}
.article-header h1{margin-bottom:.35em}
.byline{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:13.5px;color:var(--muted);padding-bottom:18px;border-bottom:1px solid var(--line-2);margin-bottom:6px}
.byline .who{color:var(--ink-2);font-weight:600}
.byline .dot{width:3px;height:3px;border-radius:50%;background:var(--line);display:inline-block}

/* medical reviewer badge — key E-E-A-T signal */
.med-review{display:flex;align-items:flex-start;gap:11px;background:var(--teal-light);border:1px solid #CDE8E2;border-radius:11px;padding:12px 15px;margin:20px 0}
.med-review svg{width:20px;height:20px;stroke:var(--teal-d);flex:none;margin-top:1px}
.med-review .mr-t{font-family:var(--disp);font-weight:700;font-size:13px;color:var(--teal-d)}
.med-review .mr-b{font-size:13px;color:var(--ink-2)}

.article-body{font-size:17.5px}
.article-body h2{margin-top:1.7em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em}
.article-body li{margin-bottom:.4em}
.article-body blockquote{border-left:3px solid var(--teal);background:#fff;margin:1.4em 0;padding:12px 18px;border-radius:0 10px 10px 0;color:var(--ink-2)}
.article-body img{border-radius:12px;margin:1.4em 0}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.article-body th{background:var(--teal-light);font-family:var(--disp);font-weight:600;color:var(--ink)}

/* dual-audience callouts (reusable via .for-patients / .for-clinicians on any block) */
.callout{border-radius:12px;padding:15px 17px;margin:1.4em 0;font-size:15.5px}
.for-patients{background:#F3F8FF;border:1px solid #D5E6F7}
.for-clinicians{background:#F5F7F7;border:1px solid var(--line)}
.callout .c-tag{font-family:var(--disp);font-weight:700;font-size:11px;letter-spacing:.08em;text-transform:uppercase;display:block;margin-bottom:5px}
.for-patients .c-tag{color:#1D6FB8}
.for-clinicians .c-tag{color:var(--ink-2)}

/* per-article disclaimer */
.article-disclaimer{margin-top:30px;background:var(--amber-bg);border:1px solid var(--amber-line);border-left:3px solid var(--tr3);border-radius:11px;padding:14px 16px;font-size:13.5px;color:#6B5417}

/* author box */
.author-box{display:flex;gap:16px;margin-top:30px;padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.author-box .avatar{width:56px;height:56px;border-radius:50%;flex:none;background:var(--teal-light)}
.author-box .a-name{font-family:var(--disp);font-weight:700;font-size:16px}
.author-box .a-bio{font-size:14px;color:var(--ink-2);margin-top:3px}

/* related tools / posts */
.related{margin-top:40px}
.related h2{font-size:20px;margin-bottom:14px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}

/* ============================================================
   POST CARDS (archive / listing)
   ============================================================ */
.post-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s}
.post-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(15,27,36,.1)}
.post-card .thumb{aspect-ratio:1200/628;background:var(--teal-light) center/cover}
.post-card .pc-body{padding:15px 16px 18px}
.post-card .pc-cat{font-family:var(--disp);font-weight:600;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--teal-d)}
.post-card h3{font-size:17px;margin:6px 0 6px;line-height:1.25}
.post-card h3 a{color:var(--ink)}
.post-card .pc-ex{font-size:14px;color:var(--muted);margin:0}
.post-card .pc-meta{font-size:12px;color:var(--muted);margin-top:10px}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar .widget{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:20px}
.sidebar .widget-title{font-family:var(--disp);font-weight:700;font-size:15px;margin:0 0 12px}
.sidebar ul{list-style:none;margin:0;padding:0}
.sidebar li{padding:7px 0;border-bottom:1px solid var(--line-2);font-size:14.5px}
.sidebar li:last-child{border-bottom:0}
.tool-cta{background:var(--ink);color:#fff;border-radius:var(--radius);padding:20px;text-align:center}
.tool-cta h3{color:#fff;font-size:17px;margin:0 0 6px}
.tool-cta p{color:#B7C6CB;font-size:13.5px;margin:0 0 14px}
.tool-cta .btn.primary{width:100%;justify-content:center}

/* ============================================================
   PAGES (legal etc.)
   ============================================================ */
.page-body{max-width:var(--read)}
.page-body h2{margin-top:1.6em}
.page-updated{font-size:13px;color:var(--muted);margin-bottom:22px}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{background:var(--ink);color:#C5D2D6;margin-top:40px}
.site-footer .wrap{padding:44px clamp(16px,4vw,28px) 30px}
.footer-disclaimer{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-left:3px solid var(--tr3);border-radius:11px;padding:14px 16px;font-size:13px;color:#B7C6CB;margin-bottom:28px}
.footer-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}
@media(max-width:720px){.footer-cols{grid-template-columns:1fr 1fr}}
.site-footer h4{font-family:var(--disp);color:#fff;font-size:13px;letter-spacing:.05em;text-transform:uppercase;margin:0 0 12px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:8px}
.site-footer a{color:#B7C6CB;font-size:14px}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:26px;padding-top:20px;font-size:13px;color:#8DA1A7}

/* ============================================================
   PAGINATION / MISC
   ============================================================ */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:34px;flex-wrap:wrap}
.pagination .page-numbers{padding:9px 14px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink-2);font-weight:600;font-size:14px}
.pagination .page-numbers.current{background:var(--ink);color:#fff;border-color:var(--ink)}
.pagination a.page-numbers:hover{border-color:var(--teal);text-decoration:none}
.page-title{margin-bottom:24px}
.entry-search{margin:0 0 24px}
.search-form{display:flex;gap:8px}
.search-form input[type=search]{flex:1;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-family:var(--body);font-size:15px}
.search-form button{padding:11px 18px;border-radius:10px;border:0;background:var(--teal);color:#fff;font-weight:600;cursor:pointer}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}