/* ===========================================================================
   AURUM AF SCIENCES — public site
   Deep black + gold, minimalist, generous negative space.
   Color tokens are injected inline from Appearance settings (see header.php).
   =========================================================================== */

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
    margin:0;background:var(--bg);color:var(--text);
    font-family:"Jost",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
    font-weight:300;line-height:1.6;font-size:16px;letter-spacing:.01em;
    -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:"Cormorant Garamond",Georgia,serif;font-weight:500;line-height:1.15;margin:0}
p{margin:0 0 1rem}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}

.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:16px;top:16px;background:var(--gold);color:#000;padding:8px 14px;border-radius:8px;z-index:200}

/* ---- Buttons ---- */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:.5em;
    padding:14px 30px;border-radius:2px;font-size:12px;letter-spacing:.22em;
    text-transform:uppercase;font-weight:400;cursor:pointer;border:1px solid transparent;
    transition:all .35s ease;white-space:nowrap;
}
.btn-gold{background:var(--button);color:#0a0a0a;border-color:var(--button)}
.btn-gold:hover{background:transparent;color:var(--gold)}
.btn-outline{background:transparent;color:var(--text);border-color:var(--border)}
.btn-outline:hover{border-color:var(--gold);color:var(--gold)}

/* ---- Header ---- */
.site-header{
    position:fixed;top:0;left:0;right:0;z-index:100;
    padding:22px 0;transition:background .4s ease,padding .4s ease,border-color .4s ease;
    border-bottom:1px solid transparent;
}
.site-header.scrolled{
    background:color-mix(in srgb,var(--bg) 88%,transparent);
    backdrop-filter:blur(14px);border-bottom-color:var(--border);padding:14px 0;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;flex-direction:column;line-height:1}
.brand-logo{max-height:38px;width:auto}
.brand-a{font-family:"Cormorant Garamond",serif;font-size:24px;font-weight:600;color:var(--gold);letter-spacing:.34em}
.brand-s{font-size:9px;letter-spacing:.5em;color:var(--muted);margin-top:5px;text-transform:uppercase}
.main-nav{display:flex;gap:34px}
.main-nav a{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);transition:color .3s;position:relative;padding:4px 0}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--gold);transition:width .3s}
.main-nav a:hover,.main-nav a[aria-current]{color:var(--text)}
.main-nav a[aria-current]::after,.main-nav a:hover::after{width:100%}
.header-actions{display:flex;align-items:center;gap:18px}
.lang-switch{display:flex;gap:2px;align-items:center}
.lang-switch .lang{font-size:11px;letter-spacing:.12em;color:var(--muted);padding:4px 7px;border-radius:2px;transition:color .3s}
.lang-switch .lang.on{color:var(--gold)}
.lang-switch .lang:hover{color:var(--text)}
.verify-cta{padding:11px 22px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.nav-toggle span{width:24px;height:1.5px;background:var(--text);transition:.3s}

/* ---- Reveal animation ---- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s ease,transform .9s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---- Hero ---- */
.hero{
    position:relative;min-height:100vh;display:flex;align-items:center;
    background:var(--bg);overflow:hidden;
}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center right;opacity:.55}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--bg) 30%,transparent 85%)}
.hero .container{position:relative;z-index:2;padding-top:120px;padding-bottom:80px}
.eyebrow{font-size:12px;letter-spacing:.4em;text-transform:uppercase;color:var(--gold);margin-bottom:26px}
.hero h1{font-size:clamp(2.8rem,7vw,5.6rem);letter-spacing:.02em;max-width:14ch;margin-bottom:26px}
.hero p{font-size:clamp(1rem,2.2vw,1.25rem);color:var(--muted);max-width:46ch;margin-bottom:42px;font-weight:300}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}

/* ---- Section scaffolding ---- */
.section{padding:clamp(72px,12vw,150px) 0;position:relative}
.section--alt{background:var(--panel)}
.section-eyebrow{font-size:11px;letter-spacing:.4em;text-transform:uppercase;color:var(--gold);margin-bottom:20px}
.section h2{font-size:clamp(2rem,5vw,3.4rem);margin-bottom:24px;letter-spacing:.01em}
.section .lead{font-size:1.15rem;color:var(--muted);max-width:60ch}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,90px);align-items:center}
.split .media{border:1px solid var(--border);border-radius:3px;overflow:hidden;background:#000}
.split .media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.prose p{color:var(--muted);font-size:1.05rem;max-width:62ch}
.divider{width:56px;height:1px;background:var(--gold);margin:28px 0}

/* ---- Quality cards ---- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:56px}
.qcard{border:1px solid var(--border);padding:36px 28px;border-radius:3px;background:color-mix(in srgb,var(--panel) 60%,transparent);transition:border-color .4s,transform .4s}
.qcard:hover{border-color:var(--gold);transform:translateY(-4px)}
.qcard .num{font-family:"Cormorant Garamond",serif;font-size:1.1rem;color:var(--gold);letter-spacing:.2em;margin-bottom:18px;display:block}
.qcard h3{font-size:1.55rem;margin-bottom:12px}
.qcard p{color:var(--muted);font-size:.98rem;margin:0}

/* ---- Verify page ---- */
.verify-wrap{padding-top:150px;min-height:100vh}
.verify-head{text-align:center;max-width:620px;margin:0 auto 44px}
.verify-head .section-eyebrow{margin-bottom:14px}
.verify-head h1{font-size:clamp(2.2rem,5vw,3.4rem);margin-bottom:14px}
.verify-head p{color:var(--muted)}
.verify-card{
    max-width:520px;margin:0 auto;background:var(--panel);border:1px solid var(--border);
    border-radius:4px;padding:clamp(28px,5vw,44px);
}
.verify-card label{display:block;font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.serial-input{
    width:100%;background:#0b0b0b;border:1px solid var(--border);border-radius:3px;
    color:var(--text);padding:18px 20px;font-size:1.5rem;letter-spacing:.14em;text-align:center;
    font-family:"Jost",monospace;transition:border-color .3s;
}
.serial-input:focus{outline:none;border-color:var(--gold)}
.serial-input::placeholder{color:#3a3a3a;letter-spacing:.14em}
.verify-card .btn{width:100%;margin-top:22px;padding:17px}
.verify-hint{font-size:.8rem;color:var(--muted);text-align:center;margin-top:16px;letter-spacing:.04em}

/* verifying overlay */
.verifying{text-align:center;padding:40px 0}
.verifying .ring{width:46px;height:46px;border:2px solid var(--border);border-top-color:var(--gold);border-radius:50%;margin:0 auto 20px;animation:spin 1s linear infinite}
.verifying p{letter-spacing:.28em;text-transform:uppercase;font-size:.8rem;color:var(--muted)}
@keyframes spin{to{transform:rotate(360deg)}}

/* result cards */
.result{max-width:560px;margin:36px auto 0}
.result-card{border:1px solid var(--border);border-radius:4px;padding:clamp(26px,4vw,40px);background:var(--panel);text-align:center;animation:rise .6s ease both}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.result-icon{width:66px;height:66px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 22px;font-size:30px}
.result-icon.ok{border:1.5px solid var(--gold);color:var(--gold)}
.result-icon.warn{border:1.5px solid #d8a24a;color:#e6b862}
.result-icon.bad{border:1.5px solid #7a3b3b;color:#c98080}
.result-card h2{font-size:2rem;margin-bottom:12px}
.result-card .rc-text{color:var(--muted);margin-bottom:24px}
.result-serial{font-size:1.6rem;letter-spacing:.18em;color:var(--gold);margin:10px 0 4px;font-family:"Jost",monospace}
.result-serial-label{font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--muted)}
.result-meta{display:flex;justify-content:center;gap:38px;margin:26px 0 4px;flex-wrap:wrap}
.result-meta .k{font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.result-meta .v{font-size:1.5rem;color:var(--text);font-family:"Cormorant Garamond",serif}
.attention-card{margin-top:20px;border:1px solid #4a3a1e;background:color-mix(in srgb,#3a2c12 26%,var(--panel));border-radius:4px;padding:26px;text-align:left}
.attention-card h3{color:#e6b862;font-size:1.4rem;margin-bottom:8px;font-family:"Cormorant Garamond",serif}
.attention-card p{color:var(--muted);margin:0 0 16px}
.history-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--border)}
.history-list li{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--border);font-size:.92rem;color:var(--muted)}
.history-list li .idx{color:var(--gold);font-family:"Cormorant Garamond",serif}

/* ---- generic page (privacy/terms/contact) ---- */
.page-head{padding-top:150px;padding-bottom:20px}
.page-head h1{font-size:clamp(2.2rem,5vw,3.4rem)}
.legal .prose{max-width:74ch}
.legal .prose p{margin-bottom:1.2rem}
.contact-methods{display:flex;flex-wrap:wrap;gap:16px;margin-top:30px}
.contact-methods a,.contact-methods span{border:1px solid var(--border);border-radius:3px;padding:16px 22px;color:var(--muted);transition:border-color .3s,color .3s}
.contact-methods a:hover{border-color:var(--gold);color:var(--gold)}
.contact-methods .k{display:block;font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);margin-bottom:6px}

/* ---- Footer ---- */
.site-footer{border-top:1px solid var(--border);padding:70px 0 34px;margin-top:0;background:var(--bg)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-a{font-size:22px}
.footer-tagline{color:var(--muted);margin-top:18px;max-width:34ch;font-size:.95rem}
.footer-col h4{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:18px;font-family:"Jost",sans-serif;font-weight:400}
.footer-col a{display:block;color:var(--muted);font-size:.95rem;padding:6px 0;transition:color .3s}
.footer-col a:hover{color:var(--gold)}
.footer-lang{flex-wrap:wrap}
.footer-social{margin-top:16px;display:flex;gap:14px}
.footer-bottom{margin-top:54px;padding-top:26px;border-top:1px solid var(--border);color:var(--muted);font-size:.82rem;letter-spacing:.04em}

/* ---- Responsive ---- */
@media (max-width:960px){
    .cards{grid-template-columns:repeat(2,1fr)}
    .split{grid-template-columns:1fr}
    .split .media{order:-1}
    .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
    .main-nav{
        position:fixed;inset:0 0 0 auto;width:min(80vw,320px);background:var(--panel);
        flex-direction:column;justify-content:center;gap:26px;padding:40px;
        transform:translateX(100%);transition:transform .4s ease;border-left:1px solid var(--border);
    }
    .main-nav.open{transform:none}
    .main-nav a{font-size:15px}
    .nav-toggle{display:flex}
    .verify-cta{display:none}
    .header-actions .lang-switch{margin-right:4px}
}
@media (max-width:560px){
    .footer-grid{grid-template-columns:1fr}
    .result-meta{gap:24px}
    .serial-input{font-size:1.25rem}
}