/* openLifetime shared theme — extracted from index.html so every page shares one look */
:root{--primary:#2a7;--accent:#4a9;--bg:#f4f6f8;--card:#fff;--text:#222}
*{box-sizing:border-box}
html{overflow-y:scroll;scrollbar-gutter:stable;min-height:100%;background:linear-gradient(180deg,#f4f6f8 0%,#e8f0fe 100%) fixed}
body{font-family:system-ui,sans-serif;color:var(--text);max-width:960px;margin:0 auto;padding:1.5rem 1rem 2rem;line-height:1.5;min-height:100vh;display:flex;flex-direction:column}
h1{font-size:3rem;margin:0 0 .25rem 0;letter-spacing:-.03em;color:var(--primary);line-height:1.1;padding-top:0;padding-left:0;padding-right:0;position:relative;top:0}
h1{font-size:3rem;margin-bottom:.25rem;letter-spacing:-.03em;color:var(--primary);line-height:1.1}
h1 .tagline{font-weight:400;color:#555;font-size:1.1rem}
.subtitle{font-size:1.25rem;color:#555;margin-bottom:2.5rem;max-width:600px}
.hero{background:var(--card);border-radius:20px;padding:2.5rem;box-shadow:0 20px 60px rgba(42,119,170,.12);margin-bottom:3rem;border:1px solid rgba(42,119,170,.08)}
.hero h2{font-size:1.4rem;margin-top:0;color:var(--primary)}
.cta{display:inline-block;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;padding:.9rem 1.8rem;border-radius:50px;text-decoration:none;font-weight:600;box-shadow:0 6px 20px rgba(42,119,170,.3);transition:transform .15s ease}
.cta:hover{transform:translateY(-3px)}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem;margin-top:2rem}
.feature{background:var(--card);border-radius:14px;padding:1.5rem;box-shadow:0 4px 12px rgba(0,0,0,.06);border-top:4px solid var(--primary)}
.feature h3{margin-top:0;font-size:1.1rem;color:var(--primary)}
/* corner nav (shared across pages) */
.nav-corners{position:fixed;top:0;right:0;display:flex;gap:.5rem;padding:1rem;pointer-events:none;z-index:10}
.nav-corners a{pointer-events:auto;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border:1px solid rgba(42,119,170,.15);border-radius:50px;padding:.5rem 1rem;display:flex;align-items:center;gap:.4rem;text-decoration:none;color:var(--primary);font-weight:700;font-size:.9rem;box-shadow:0 2px 8px rgba(0,0,0,.08);transition:transform .15s ease,background .15s ease}
.nav-corners a:hover{transform:scale(1.05);background:#fff}
.nav-corners a .nav-icon{font-size:1rem}
/* card grid + detail panel (cards.html) */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:1rem}
.item{border:none;border-radius:12px;padding:1rem .75rem;min-height:76px;display:flex;flex-direction:row;align-items:center;justify-content:center;gap:.35rem;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;cursor:pointer;text-align:center;font-weight:600;font-size:.95rem;line-height:1.2;box-shadow:0 4px 12px rgba(42,119,170,.25);transition:transform .15s ease,box-shadow .15s ease}
.imp-badge{font-size:.85rem;line-height:1;color:#ffe08a;text-shadow:0 0 6px rgba(255,224,138,.5);flex-shrink:0}
.item:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(42,119,170,.35);border-color:rgba(255,255,255,.3)}
.item.selected{outline:3px solid var(--primary);outline-offset:2px}
.card-section{background:var(--card);border-radius:14px;padding:1.5rem;margin-top:1.5rem;margin-bottom:2rem;box-shadow:0 4px 12px rgba(0,0,0,.06);border-top:4px solid var(--primary);animation:fadeIn .3s ease;scroll-margin-top:80px}
.card-section.active{display:block}
.card-section h2{margin-top:0;color:var(--primary);font-size:1.6rem;letter-spacing:-.02em}
.card-summary{font-size:1.05rem;color:#444}
.card-badge{display:inline-block;background:rgba(42,119,170,.1);color:var(--primary);font-size:.75rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:.25rem .6rem;border-radius:50px;margin-bottom:.75rem}
.card-block{margin-bottom:1rem}
.card-block h3{font-size:1.05rem;color:var(--primary);margin-bottom:.5rem;border-bottom:1px solid rgba(42,119,170,.12);padding-bottom:.3rem}
.card-block p{font-size:.95rem;color:#333;line-height:1.55}
.card-block ul{padding-left:1.2rem;margin:.3rem 0}
.card-block li{margin-bottom:.4rem;font-size:.95rem;color:#333}
.dose-table{border-collapse:collapse;margin-top:.3rem}
.dose-table td{padding:.25rem .75rem .25rem 0;font-size:.95rem}
.dose-table td:first-child{font-weight:600;color:var(--primary)}
.dose-note{font-size:.85rem;color:#777;margin:.4rem 0 0}
.card-studies a{color:var(--primary);text-decoration:none}
.card-studies a:hover{text-decoration:underline}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
/* brand title link + footer */
.brand-link{color:var(--primary);text-decoration:none;transition:opacity .15s ease}
.brand-link:hover{opacity:.75}
.site-footer{margin-top:auto;padding-top:1rem;border-top:1px solid rgba(42,119,170,.15);display:flex;gap:1.25rem;font-size:.85rem;color:#777;flex-wrap:wrap}
.site-footer a{color:#777;text-decoration:none}
.site-footer a:hover{color:var(--primary);text-decoration:underline}
/* Professional header bar */
.site-header-bar{position:fixed;top:0;left:0;right:0;height:56px;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(42,119,170,.1);display:flex;align-items:center;justify-content:space-between;padding:0 1.5rem;z-index:20}
.site-header-bar .brand{font-weight:700;color:var(--primary);font-size:1.1rem;text-decoration:none;letter-spacing:-.02em}
.site-header-bar .brand:hover{opacity:.8}
.site-header-bar .nav-links{display:flex;gap:.75rem}
.site-header-bar .nav-links a{font-size:.85rem;color:#555;text-decoration:none;padding:.25rem .5rem;border-radius:6px;transition:background .15s}
.site-header-bar .nav-links a:hover{background:rgba(42,119,170,.08);color:var(--primary)}
/* Tier grouping on cards page */
.tier-section{margin-top:2.5rem}
.tier-title{font-size:1.5rem;color:var(--primary);letter-spacing:-.02em;margin-bottom:.25rem;border-bottom:2px solid rgba(42,119,170,.2);padding-bottom:.4rem}
.tier-desc{font-size:.95rem;color:#666;margin-bottom:1rem}