/* =========================================================
   KaiserLabs — Global Styles (v12)
   Harmonized with NeuroHoney brand identity
   Light theme only — optimized for trust & conversion
   ========================================================= */

/* Google Fonts loaded via <link> in HTML for performance — see <head> */

/* Design tokens */
:root {
  --brand: #174F19;
  --sage: #5D845E;
  --honey: #AB875E;
  --amber: #D4A017;
  --cream: #F6E6D7;
  --steel: #4C5972;
  --mint: #A4D9A5;
  --muted: #5a5a5a;

  --bg: #FAFAF8;           /* Warm off-white — easier on eyes than pure #fff */
  --text: #061406;
  --card: #ffffff;          /* Cards pop against the warm bg */
  --border: #e4e5e7;
  --primary: var(--brand);
  --primaryText: #ffffff;
  --accent: var(--honey);

  --container: 1120px;
  --radius: 12px;

  --font-heading: 'Work Sans', sans-serif;
  --font-body: 'Instrument Sans', sans-serif;
  --font-mono: 'Anonymous Pro', monospace;
}

/* Base */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-body);line-height:1.65}
img,svg{max-width:100%;height:auto;display:block}
a{color:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 16px}
.small{font-size:.92rem}.flex{display:flex;gap:12px}.between{justify-content:space-between}.center{align-items:center}.wrap{flex-wrap:wrap}
.mono{font-family:var(--font-mono)}

/* Skip-to-content (accessibility) */
.skip-link{position:absolute;top:-100%;left:16px;z-index:100;background:var(--primary);color:var(--primaryText);padding:.6rem 1.2rem;border-radius:var(--radius);text-decoration:none;font-weight:700}
.skip-link:focus{top:8px}

/* Grid & type */
.grid-2{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:900px){.grid-2{grid-template-columns:1.15fr .85fr}}
h1,h2,h3,h4{font-family:var(--font-heading)}
h1{font-size:clamp(2rem,2.6vw+1rem,3.15rem);line-height:1.15;margin:.3em 0;font-weight:700}
h2{font-size:clamp(1.6rem,1.4vw+1rem,2.1rem);margin:.5em 0;font-weight:600}
h3{margin:.4em 0;font-weight:600} p{margin:.6em 0}
.lead{font-size:1.125rem;opacity:.92}.muted{color:var(--muted)}.accent{color:var(--accent)}
.section{padding:64px 0}.alt{background:var(--card)}
.section-label{font-family:var(--font-mono);font-size:.85rem;text-transform:uppercase;letter-spacing:1.5px;color:var(--sage);margin-bottom:.25rem}

/* Header & nav */
.site-header{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--border)}
.brand{gap:10px;text-decoration:none;color:inherit}
.logo{width:120px;height:auto}@media(min-width:900px){.logo{width:140px}}
.brand-name{font-family:var(--font-heading);font-weight:700;letter-spacing:.2px}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;background:rgba(0,0,0,.03);border:1px solid var(--border);padding:.45rem .6rem;border-radius:10px;cursor:pointer;font-size:1.15rem;transition:background-color .15s ease}
.nav-toggle:hover,.nav-toggle:focus-visible{background:rgba(0,0,0,.06)}
.nav-menu{list-style:none;display:none;margin:0;padding:12px;position:absolute;right:16px;background:var(--bg);border:1px solid var(--border);border-radius:12px}
.nav-menu li{margin:6px 0}.nav-menu a{text-decoration:none;color:inherit;font-family:var(--font-body);font-weight:500}
@media(min-width:900px){.nav-toggle{display:none}.nav-menu{display:flex;position:static;border:none;padding:0}.nav-menu li{margin-left:16px}}

/* Buttons */
.btn{display:inline-block;padding:.7rem 1.2rem;border:1px solid var(--border);border-radius:var(--radius);text-decoration:none;color:inherit;font-family:var(--font-heading);font-weight:600;transition:opacity .15s ease,background .15s ease}
.btn.primary{background:var(--primary);border-color:var(--primary);color:var(--primaryText)}
.btn.secondary{background:var(--steel);border-color:var(--steel);color:#fff}
.btn.outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn:hover{opacity:.88}
.btn.shop{background:var(--mint);border-color:var(--mint);color:var(--text);font-weight:700}
.btn.shop:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* Hero */
.hero{position:relative;background:center/cover no-repeat var(--hero-bg,none);min-height:52vh;display:grid;place-items:center}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.35),rgba(0,0,0,.15)),linear-gradient(0deg,rgba(0,0,0,.15),rgba(0,0,0,.05));pointer-events:none}
.hero .container{position:relative;z-index:1}
.hero h1,.hero .lead{color:#fff;text-shadow:0 2px 6px rgba(0,0,0,.35)}
.hero .hero-text p{color:#fff;text-shadow:0 2px 6px rgba(0,0,0,.35)}
.hero .hero-text p a{color:#fff;text-decoration:underline}
.hero .hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}

/* Cards */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.cards-3{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:900px){.cards-3{grid-template-columns:repeat(3,1fr)}}
.cards-4{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:900px){.cards-4{grid-template-columns:repeat(4,1fr)}}
.value-icon{width:64px;height:auto;margin-bottom:12px}

/* Product cards (NeuroHoney showcase) */
.product-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:0;overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.08)}
.product-card img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#f5f5f3;padding:12px}
.product-card .product-info{padding:16px 20px 20px;flex:1;display:flex;flex-direction:column}
.product-card h3{margin:0 0 4px;font-size:1.1rem}
.product-card .product-desc{font-size:.9rem;color:var(--muted);margin:0 0 12px;flex:1}
.product-card .product-price{font-family:var(--font-mono);font-weight:700;color:var(--brand);font-size:1rem}
.product-card .product-footer{display:flex;justify-content:space-between;align-items:center;margin-top:12px}

/* Buy channel cards */
.buy-channel{display:flex;flex-direction:column;align-items:center}
.buy-channel p{flex:1}
.buy-channel:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.08)}

/* How it works */
.steps{display:grid;grid-template-columns:1fr;gap:24px;text-align:center;margin-top:24px}
@media(min-width:900px){.steps{grid-template-columns:repeat(3,1fr)}}
.step-number{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:50%;background:var(--mint);color:var(--brand);font-family:var(--font-heading);font-weight:700;font-size:1.2rem;margin:0 auto 12px}

/* Trust badges */
.trust-bar{display:flex;flex-wrap:wrap;justify-content:center;gap:24px 40px;padding:20px 0;text-align:center}
.trust-item{display:flex;flex-direction:column;align-items:center;gap:8px;font-size:.85rem;font-weight:600;font-family:var(--font-heading);color:var(--text)}
.trust-badge{width:48px;height:48px}

/* Partners */
.partners{position:relative;background:url('/assets/img/partners-bg.webp') center/cover no-repeat;color:var(--text)}
.partners .container{position:relative;z-index:1}
.partners h2,.partners p,.partners h3{color:inherit}
.partners-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.6),rgba(255,255,255,.4));pointer-events:none}

/* Forms */
.inline-form{display:flex;gap:8px;margin-top:12px}
.inline-form input{flex:1;padding:.7rem;border:1px solid var(--border);border-radius:12px;background:#fff;color:inherit;font-family:var(--font-body)}
.inline-form button{white-space:nowrap}

/* FAQ */
details{border:1px solid var(--border);border-radius:12px;padding:12px;margin:10px 0;background:var(--card)}
details[open]{background:transparent}
details summary{cursor:pointer;font-weight:700;font-family:var(--font-heading)}

/* Docs list */
.doc-list{padding-left:18px}.doc-list li{margin:.35rem 0}

/* Coming soon teaser */
.coming-soon{text-align:center;padding:40px 20px;font-size:1.1rem;background:var(--card);border:2px dashed var(--border);border-radius:var(--radius)}
.coming-soon strong{color:var(--accent);font-size:1.3rem}

/* CTA & footer */
.cta{background:linear-gradient(180deg,var(--card),transparent)}
.disclaimer{font-size:.9rem;color:var(--muted)}
.site-footer{border-top:1px solid var(--border);padding:24px 0;margin-top:24px}
.site-footer .footer-tag{font-family:var(--font-mono);font-size:.8rem;color:var(--muted)}
.links a{text-decoration:none;margin-left:8px}

/* Accessibility */
:focus-visible{outline:3px solid var(--amber);outline-offset:2px}

/* Mobile sticky CTA */
.sticky-cta{display:none}
@media(max-width:899.98px){
  .sticky-cta{display:block;position:fixed;bottom:0;left:0;right:0;z-index:40;padding:10px 16px;background:var(--bg);border-top:1px solid var(--border);box-shadow:0 -2px 12px rgba(0,0,0,.08)}
  .site-footer{padding-bottom:72px}
}

/* Noscript banner */
.noscript-banner{background:var(--accent);color:#111;text-align:center;padding:12px 16px;font-weight:700}

/* === Mobile responsiveness === */
@media (max-width: 899.98px) {
  .grid-2{display:grid;grid-template-columns:1fr;gap:1.25rem}
  .cards-3,.cards-4{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem}
  .hero .container{display:grid;grid-template-columns:1fr}

  .site-header .nav-toggle{display:inline-flex !important}
  .site-header .nav-menu{display:none !important;position:absolute;right:16px;top:100%;z-index:1000;background:var(--bg);border:1px solid var(--border);border-radius:12px;padding:8px 12px;min-width:180px}
  .site-header .nav-menu li{margin:.5rem 0}
  .site-header .nav-menu a{display:block;padding:6px 10px;text-decoration:none}

  .site-header .nav-toggle[aria-expanded="true"] + .nav-menu,
  .site-header .nav-menu.is-open,
  .site-header .nav-menu.open,
  .site-header .nav-menu[data-open="true"]{display:block !important}

  .site-header .nav-menu .btn{background:transparent;border:none;border-radius:0;padding:6px 10px;color:inherit}
}

/* === Desktop nav alignment === */
@media (min-width: 900px) {
  .site-header .nav-menu{align-items:center}
  .site-header .nav-menu li{display:flex;align-items:center}
  .site-header .nav-menu a{display:inline-flex;align-items:center}
  .site-header .nav-menu .btn{padding:.45rem .9rem;line-height:1.1}
}
