/* ============================================================
   PsyCourses — design system (Claude Design tokens)
   Mobile-first, fluid, no external framework (Lighthouse-100 target)
   ============================================================ */
:root{
  --brand-900:#0F2A3F; --brand-700:#17546E; --brand-500:#2E86AB; --brand-50:#EAF3F7;
  --accent-600:#E8734A; --accent-700:#C85A34;
  --ink-900:#1A1F24; --ink-600:#4A5560; --ink-400:#8A96A3;
  --line:#E2E8EE; --bg:#FFFFFF; --bg-soft:#F7F9FB;
  --success:#2F9E6E; --warning:#C9820A; --danger:#C0392B;
  --shadow-sm:0 1px 2px rgba(16,42,63,.06);
  --shadow-md:0 8px 24px rgba(16,42,63,.08);
  --r-card:14px; --r-btn:10px; --wrap:1200px;
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:64px; --sp-7:96px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:'Inter',-apple-system,'Segoe UI',Roboto,Arial,sans-serif;color:var(--ink-900);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-700);text-decoration:none}
a:hover{color:var(--brand-900)}
h1,h2,h3,h4{font-family:'Manrope',-apple-system,'Segoe UI',sans-serif;color:var(--brand-900);margin:0 0 .5em;line-height:1.2;font-weight:700}
h1{font-size:clamp(28px,6vw,46px)}
h2{font-size:clamp(22px,4vw,30px);margin-top:0}
h3{font-size:clamp(18px,3vw,20px)}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
li{margin:.25em 0}
:focus-visible{outline:3px solid var(--brand-500);outline-offset:2px}
::selection{background:var(--brand-50)}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-900);color:#fff;padding:10px 16px;z-index:200}
.skip-link:focus{left:8px;top:8px;color:#fff}

/* Layout */
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:var(--sp-2);padding-right:var(--sp-2)}
@media(min-width:768px){.wrap{padding-left:var(--sp-3);padding-right:var(--sp-3)}}
.section{padding:clamp(32px,6vw,64px) 0}
.section--soft{background:var(--bg-soft)}
.section--brand{background:var(--brand-50)}
.lead{font-size:clamp(16px,2.2vw,19px);color:var(--ink-600)}
.muted{color:var(--ink-400);font-size:14px}
.center{text-align:center}
.grid{display:grid;gap:var(--sp-3)}
.grid-2{grid-template-columns:1fr}
.grid-3{grid-template-columns:1fr}
.grid-4{grid-template-columns:1fr 1fr}
@media(min-width:640px){.grid-2{grid-template-columns:1fr 1fr}.grid-3{grid-template-columns:1fr 1fr}}
@media(min-width:900px){.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}}

/* Buttons / CTA */
.cta-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent-600);color:#fff;padding:14px 24px;border-radius:var(--r-btn);font-weight:600;font-size:15px;border:none;cursor:pointer;min-height:48px;transition:background .15s,transform .15s;text-align:center}
.cta-btn:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px)}
.cta-btn:active{transform:translateY(0)}
.cta-btn[aria-disabled="true"],.cta-btn.is-disabled{background:#c9d3db;color:#6b7681;cursor:not-allowed;pointer-events:none;transform:none}
.btn-ghost{display:inline-flex;align-items:center;gap:6px;padding:12px 20px;border:1px solid var(--line);border-radius:var(--r-btn);color:var(--brand-700);font-weight:600;background:#fff;min-height:44px}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-900)}
.icon{width:18px;height:18px;flex:none;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.site-header__row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0}
.brand{display:flex;align-items:center;gap:10px;font-family:'Manrope';font-weight:800;font-size:19px;color:var(--brand-900)}
.brand b{color:var(--accent-600);font-weight:800}
.brand__mark{width:38px;height:38px;border-radius:10px;background:var(--brand-900);color:#fff;display:grid;place-items:center;flex:none;font-family:'Manrope';font-weight:800}
.nav-desktop{display:none;gap:24px;align-items:center}
.nav-desktop a{color:var(--brand-700);font-weight:500;font-size:15px}
.nav-desktop a.is-active,.nav-desktop a:hover{color:var(--brand-900);font-weight:700}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:inline-flex;background:none;border:none;padding:8px;cursor:pointer;color:var(--brand-900);min-height:44px;min-width:44px;align-items:center;justify-content:center}
.nav-mobile{display:none;flex-direction:column;gap:4px;border-top:1px solid var(--line);padding:12px 0}
.nav-mobile.open{display:flex}
.nav-mobile a{padding:12px 4px;color:var(--brand-700);font-weight:600;border-radius:8px}
.nav-mobile a:hover{background:var(--bg-soft)}
@media(min-width:1025px){.nav-desktop{display:flex}.nav-toggle{display:none}.nav-mobile{display:none!important}}

/* Hero */
.hero{padding:clamp(28px,6vw,60px) 0}
.hero h1{max-width:16ch}
.hero .lead{max-width:60ch}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:var(--sp-3)}
.trust-inline{display:flex;flex-wrap:wrap;gap:16px;margin-top:var(--sp-3);color:var(--ink-600);font-size:14px}
.trust-inline span{display:inline-flex;align-items:center;gap:6px}
.trust-inline .icon{color:var(--success)}

/* Quick answer */
.quick-answer{display:flex;gap:14px;background:var(--brand-50);border:1px solid #d7e6ee;border-radius:var(--r-card);padding:18px 20px;margin:0 0 var(--sp-4)}
.quick-answer .icon{width:22px;height:22px;color:var(--brand-500);margin-top:2px}
.quick-answer p{margin:0;font-size:clamp(15px,2vw,17px)}
.quick-answer strong{color:var(--brand-900)}

/* Cards */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);transition:box-shadow .2s,transform .2s;padding:var(--sp-3);display:flex;flex-direction:column;gap:10px}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.card h3{margin:0}
.card__facts{display:flex;flex-wrap:wrap;gap:8px 16px;color:var(--ink-600);font-size:14px;margin:4px 0}
.card__facts span{display:inline-flex;align-items:center;gap:6px}
.card__foot{margin-top:auto;display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between}
.chip{display:inline-flex;align-items:center;gap:6px;background:var(--brand-50);color:var(--brand-700);font-size:13px;font-weight:600;padding:5px 12px;border-radius:999px}
.chip--accent{background:#fdece4;color:var(--accent-700)}
.score{display:inline-flex;flex-direction:column;align-items:center;background:var(--brand-900);color:#fff;border-radius:12px;padding:8px 12px;font-family:'Manrope';line-height:1}
.score b{font-size:22px;font-weight:800}
.score small{font-size:10px;opacity:.75;text-transform:uppercase;letter-spacing:.05em;margin-top:3px}

/* Segments (home) */
.seg{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-sm);transition:.2s}
.seg:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.seg .icon{width:26px;height:26px;color:var(--brand-500);margin-bottom:8px}
.seg h3{margin:0 0 6px}
.seg p{margin:0;color:var(--ink-600);font-size:14px}

/* Tables (rating / compare) — sticky first col on mobile */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r-card);background:#fff}
table.data{width:100%;border-collapse:collapse;min-width:640px;font-size:14px}
table.data th,table.data td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.data thead th{background:var(--brand-50);color:var(--brand-900);font-family:'Manrope';font-weight:700;position:sticky;top:0}
table.data tbody tr:hover{background:var(--bg-soft)}
table.data th[scope="row"],table.data td.sticky-col{position:sticky;left:0;background:#fff;font-weight:600;z-index:1;box-shadow:1px 0 0 var(--line)}
table.data tbody tr:hover th[scope="row"]{background:var(--bg-soft)}
.rank{font-family:'Manrope';font-weight:800;color:var(--accent-600)}
.weight{font-size:12px;color:var(--ink-400);font-weight:500}

/* Podium (rating) */
.podium{display:grid;gap:var(--sp-3);grid-template-columns:1fr}
@media(min-width:768px){.podium{grid-template-columns:repeat(3,1fr)}}
.podium .card{border-top:4px solid var(--line)}
.podium .card.is-1{border-top-color:var(--accent-600)}
.podium .card.is-2{border-top-color:var(--brand-500)}
.podium .card.is-3{border-top-color:var(--brand-700)}

/* Filters */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:var(--sp-3)}
.filters button{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 16px;font-size:14px;font-weight:600;color:var(--brand-700);cursor:pointer;min-height:40px}
.filters button[aria-pressed="true"]{background:var(--brand-900);color:#fff;border-color:var(--brand-900)}

/* Trust bar */
.trust-bar{display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r-card);padding:12px 18px;font-size:13px;color:var(--ink-600)}
.trust-bar span{display:inline-flex;align-items:center;gap:6px}
.trust-bar .icon{width:16px;height:16px;color:var(--brand-500)}
.erid{font-size:11px;color:var(--ink-400);border:1px solid var(--line);border-radius:6px;padding:2px 7px}

/* Prose / content */
.prose{max-width:820px}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.3em}
.prose table{width:100%;border-collapse:collapse;margin:1em 0;font-size:14px}
.prose table th,.prose table td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.prose table th{background:var(--brand-50)}
.pros-cons{display:grid;gap:var(--sp-3);grid-template-columns:1fr}
@media(min-width:640px){.pros-cons{grid-template-columns:1fr 1fr}}
.pros-cons ul{list-style:none;padding:0}
.pros-cons li{display:flex;gap:8px;align-items:flex-start;margin:.4em 0}
.pros-cons .icon{margin-top:3px}
.pros .icon{color:var(--success)}
.cons .icon{color:var(--danger)}

/* FAQ */
.faq details{border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:10px;overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:16px 18px;font-family:'Manrope';font-weight:700;color:var(--brand-900);display:flex;justify-content:space-between;gap:12px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary .icon{transition:transform .2s;color:var(--brand-500)}
.faq details[open] summary .icon{transform:rotate(180deg)}
.faq .faq__a{padding:0 18px 18px;color:var(--ink-600)}

/* Breadcrumbs */
.crumbs{font-size:13px;color:var(--ink-400);padding:14px 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0}
.crumbs li{display:flex;gap:6px;align-items:center}
.crumbs a{color:var(--brand-700)}

/* Internal links block */
.linkbox{border:1px solid var(--line);border-radius:var(--r-card);padding:var(--sp-3);background:#fff}
.linkbox h2{font-size:20px}
.linkbox ul{list-style:none;padding:0;display:grid;gap:8px;grid-template-columns:1fr}
@media(min-width:640px){.linkbox ul{grid-template-columns:1fr 1fr}}
.linkbox a{display:inline-flex;align-items:center;gap:8px;font-weight:600}
.linkbox a .icon{color:var(--accent-600)}

/* Author box */
.author{display:flex;gap:14px;align-items:center;border-top:1px solid var(--line);margin-top:var(--sp-4);padding-top:var(--sp-3);font-size:14px;color:var(--ink-600)}
.author__avatar{width:48px;height:48px;border-radius:999px;background:var(--brand-50);display:grid;place-items:center;color:var(--brand-500);flex:none}

/* Sticky mobile CTA */
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:60;display:flex;gap:10px;padding:10px 12px;background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(16,42,63,.08)}
.mobile-cta .cta-btn,.mobile-cta .btn-ghost{flex:1}
@media(min-width:1025px){.mobile-cta{display:none}}
body.has-mobile-cta{padding-bottom:76px}
@media(min-width:1025px){body.has-mobile-cta{padding-bottom:0}}

/* Footer */
.site-footer{background:var(--brand-900);color:#cdd8e0;margin-top:var(--sp-6)}
.site-footer a{color:#cdd8e0}
.site-footer a:hover{color:#fff}
.site-footer__grid{display:grid;gap:var(--sp-4);grid-template-columns:1fr;padding:var(--sp-5) 0}
@media(min-width:768px){.site-footer__grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:12px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:.35em 0;font-size:14px}
.site-footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:13px;color:#93a3b0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}
.disclosure{background:#0b2030;color:#aebdc8;font-size:13px}
.disclosure .wrap{padding-top:12px;padding-bottom:12px}

/* Reveal (CSS only, no JS/CLS) */
@media(prefers-reduced-motion:no-preference){
  .reveal{opacity:0;transform:translateY(12px);animation:rise .5s ease-out forwards;animation-timeline:view();animation-range:entry 0% cover 22%}
  @keyframes rise{to{opacity:1;transform:none}}
}
.reveal{opacity:1;transform:none}

/* Utilities */
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.stack>*+*{margin-top:var(--sp-3)}
.tag-verify{font-size:11px;color:var(--warning);border:1px dashed var(--warning);border-radius:6px;padding:1px 6px;white-space:nowrap}