/*
Theme Name: RTB Sciences
Theme URI: https://example.com/
Author: RTB Sciences
Author URI: https://example.com/
Description: A clean, friendly storefront theme for RTB Sciences research-grade peptide kits. WooCommerce-ready, with built-in age verification gate, COA/test-results section, and research-use-only disclaimers. Light theme with teal-green and warm amber accents.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.5
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: rtb-sciences
WC requires at least: 7.0
WC tested up to: 8.7
*/

/* ============================================================
   RTB SCIENCES THEME
   Design tokens
   ============================================================ */
:root{
  --bg:#f4f1ea;
  --surface:#fbf9f4;
  --surface-2:#efeadf;
  --ink:#1c2b29;
  --ink-soft:#46514f;
  --teal:#0f7066;
  --teal-deep:#0a4d46;
  --teal-bright:#149e8f;
  --amber:#d98a32;
  --amber-soft:#f3c98b;
  --line:#dcd5c6;
  --danger:#b8462f;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 18px 40px -22px rgba(15,80,73,.28);
  --shadow-soft:0 8px 24px -16px rgba(15,80,73,.30);
  --maxw:1180px;
  --font-display:"Fraunces",Georgia,serif;
  --font-body:"Outfit","Helvetica Neue",Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--teal-deep);text-decoration:none}
a:hover{color:var(--teal-bright)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.1;color:var(--ink);margin:0 0 .4em}
h1{font-size:clamp(2.4rem,5vw,3.8rem);letter-spacing:-.01em}
h2{font-size:clamp(1.8rem,3.4vw,2.7rem)}
h3{font-size:1.3rem}
p{margin:0 0 1rem}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--font-body);font-weight:600;text-transform:uppercase;letter-spacing:.16em;font-size:.74rem;color:var(--teal);margin-bottom:.6rem}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  font-family:var(--font-body);font-weight:600;font-size:.98rem;
  padding:.85em 1.5em;border-radius:999px;border:1.5px solid transparent;
  cursor:pointer;transition:transform .15s ease,box-shadow .2s ease,background .2s ease;
  line-height:1;
}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-soft)}
.btn-ghost{background:transparent;color:var(--teal-deep);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal-deep);transform:translateY(-2px)}
.btn-amber{background:var(--amber);color:#fff}
.btn-amber:hover{background:#c2762a;color:#fff;transform:translateY(-2px)}

/* ---------- Top bar ---------- */
.topbar{
  background:var(--teal-deep);color:#eef6f4;
  text-align:center;font-size:.78rem;letter-spacing:.08em;
  padding:.5rem 1rem;text-transform:uppercase;font-weight:500;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(251,249,244,.88);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 24px;max-width:var(--maxw);margin:0 auto}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--font-display);font-weight:600;font-size:1.5rem;color:var(--ink)}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--teal-bright),var(--teal-deep));
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:1.05rem;font-family:var(--font-body);letter-spacing:.02em;
  box-shadow:var(--shadow-soft);
}
.brand small{display:block;font-family:var(--font-body);font-weight:500;font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;color:var(--teal)}
.main-nav{display:flex;gap:26px;align-items:center}
.main-nav a{color:var(--ink-soft);font-weight:500;font-size:.96rem}
.main-nav a:hover{color:var(--teal-deep)}
.header-actions{display:flex;align-items:center;gap:14px}
.cart-link{position:relative;display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--ink)}
.cart-count{background:var(--amber);color:#fff;border-radius:999px;font-size:.7rem;min-width:20px;height:20px;display:grid;place-items:center;padding:0 5px;font-weight:700}
.nav-toggle{display:none;background:none;border:0;font-size:1.5rem;cursor:pointer;color:var(--ink)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 60px}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(60% 80% at 78% 18%,rgba(20,158,143,.16),transparent 60%),
    radial-gradient(50% 60% at 12% 90%,rgba(217,138,50,.12),transparent 60%);
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-copy p.lead{font-size:1.15rem;color:var(--ink-soft);max-width:34ch}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.hero-stats{display:flex;gap:30px;margin-top:38px;flex-wrap:wrap}
.hero-stats .stat strong{display:block;font-family:var(--font-display);font-size:1.7rem;color:var(--teal-deep);line-height:1}
.hero-stats .stat span{font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-soft)}
.hero-visual{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:linear-gradient(160deg,#e8f1ef,#dfeae6);
  aspect-ratio:4/5;display:grid;place-items:center;box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.hero-visual .vial-art{font-size:7rem;filter:saturate(1.1)}
.hero-badges{display:flex;flex-direction:column;gap:12px;position:absolute;left:18px;bottom:18px}
.hbadge{background:rgba(251,249,244,.92);border:1px solid var(--line);border-radius:12px;padding:8px 12px;font-size:.8rem;display:flex;gap:8px;align-items:center;box-shadow:var(--shadow-soft)}
.hbadge b{color:var(--teal-deep)}

/* ---------- Trust strip ---------- */
.trust{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.trust-item{padding:26px 22px;border-right:1px solid var(--line)}
.trust-item:last-child{border-right:0}
.trust-item .ti-icon{font-size:1.4rem;color:var(--teal);margin-bottom:6px}
.trust-item b{display:block;font-family:var(--font-display);font-size:1.05rem}
.trust-item span{font-size:.85rem;color:var(--ink-soft)}

/* ---------- Sections ---------- */
.section{padding:72px 0}
.section-head{margin-bottom:38px;max-width:60ch}
.section-tinted{background:var(--surface)}

/* ---------- Product grid ---------- */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:24px}
.product-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:transform .18s ease,box-shadow .2s ease;
}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.pc-media{aspect-ratio:1/1;background:linear-gradient(160deg,#e8f1ef,#e3ece9);display:grid;place-items:center;position:relative}
.pc-media .vial{font-size:3.4rem}
.pc-tag{position:absolute;top:12px;left:12px;background:var(--teal);color:#fff;font-size:.66rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:4px 9px;border-radius:999px}
.pc-body{padding:18px;display:flex;flex-direction:column;gap:6px;flex:1}
.pc-cat{font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--teal);font-weight:600}
.pc-title{font-family:var(--font-display);font-size:1.25rem;font-weight:600}
.pc-desc{font-size:.86rem;color:var(--ink-soft);flex:1}
.pc-foot{display:flex;align-items:center;justify-content:space-between;margin-top:10px}
.pc-price{font-family:var(--font-display);font-size:1.3rem;font-weight:600;color:var(--teal-deep)}
.pc-price .per{font-family:var(--font-body);font-size:.72rem;color:var(--ink-soft);font-weight:500;display:block}

/* ---------- Feature / why ---------- */
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.why-list{list-style:none;padding:0;margin:0;display:grid;gap:20px}
.why-list li{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start}
.why-num{font-family:var(--font-display);font-weight:600;color:var(--amber);font-size:1.1rem;background:var(--surface);border:1px solid var(--line);width:40px;height:40px;border-radius:10px;display:grid;place-items:center}
.why-list h4{margin:.1em 0 .25em}
.why-list p{font-size:.9rem;color:var(--ink-soft);margin:0}
.stat-panel{background:var(--teal-deep);color:#eef6f4;border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow)}
.stat-panel h3{color:#fff}
.stat-row{display:flex;justify-content:space-between;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.14);font-size:.95rem}
.stat-row:last-child{border-bottom:0}
.stat-row b{color:#fff}
.stat-row span{color:var(--amber-soft)}

/* ---------- COA section ---------- */
.coa-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;gap:10px}
.coa-card .lot{font-family:var(--font-body);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal);font-weight:600}
.coa-meta{display:flex;justify-content:space-between;font-size:.85rem;color:var(--ink-soft);border-top:1px dashed var(--line);padding-top:10px;margin-top:4px}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line);padding:18px 0}
.faq-item summary{font-family:var(--font-display);font-size:1.12rem;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--teal);font-weight:400;font-size:1.4rem;transition:transform .2s}
.faq-item[open] summary::after{content:"–"}
.faq-item p{margin:14px 0 2px;color:var(--ink-soft);font-size:.95rem}

/* ---------- Disclaimer band ---------- */
.ruo-band{background:#2a1f12;color:#f3e6d4;text-align:center;padding:14px 20px;font-size:.84rem;letter-spacing:.04em}
.ruo-band b{color:var(--amber-soft)}

/* ---------- Footer ---------- */
.site-footer{background:var(--teal-deep);color:#cfe3df;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.site-footer h5{color:#fff;font-family:var(--font-body);font-weight:600;letter-spacing:.1em;text-transform:uppercase;font-size:.78rem;margin:0 0 14px}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.site-footer a{color:#cfe3df;font-size:.92rem}
.site-footer a:hover{color:#fff}
.footer-brand p{font-size:.9rem;color:#a9cbc4;max-width:34ch}
.footer-disclaimer{border-top:1px solid rgba(255,255,255,.14);margin-top:34px;padding-top:20px;font-size:.78rem;color:#9bc0b8;line-height:1.6}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:18px;font-size:.8rem;color:#9bc0b8}

/* ---------- Age gate ---------- */
.age-gate{position:fixed;inset:0;z-index:9999;background:rgba(10,40,37,.86);backdrop-filter:blur(8px);display:grid;place-items:center;padding:20px}
.age-gate.hidden{display:none}
.age-card{background:var(--surface);border-radius:var(--radius-lg);max-width:460px;width:100%;padding:38px 34px;text-align:center;box-shadow:0 30px 80px -30px rgba(0,0,0,.6);border:1px solid var(--line)}
.age-card .ag-icon{font-size:2.2rem;color:var(--amber);margin-bottom:10px}
.age-card h2{font-size:1.7rem;margin-bottom:.4em}
.age-card p{font-size:.92rem;color:var(--ink-soft)}
.age-stats{display:flex;justify-content:center;gap:24px;margin:22px 0}
.age-stats .as strong{display:block;font-family:var(--font-display);font-size:1.3rem;color:var(--teal-deep)}
.age-stats .as span{font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-soft)}
.age-actions{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.age-remember{display:flex;align-items:center;justify-content:center;gap:8px;font-size:.84rem;color:var(--ink-soft);margin-top:14px}
.age-deny{background:none;border:0;color:var(--ink-soft);text-decoration:underline;cursor:pointer;font-size:.84rem}
.age-fine{font-size:.74rem;color:var(--ink-soft);margin-top:16px}

/* ---------- Page header ---------- */
.page-hero{background:var(--surface);border-bottom:1px solid var(--line);padding:54px 0}
.page-hero .eyebrow{margin-bottom:.4rem}

/* ---------- Prose (static pages / posts) ---------- */
.rtb-prose{font-size:1.02rem;color:var(--ink)}
.rtb-prose h2{margin-top:1.6em}
.rtb-prose h3{margin-top:1.3em}
.rtb-prose ul,.rtb-prose ol{padding-left:1.3em;margin:0 0 1.2em}
.rtb-prose li{margin-bottom:.5em}
.rtb-prose a{text-decoration:underline}
.rtb-prose blockquote{border-left:3px solid var(--teal);padding-left:18px;margin:1.4em 0;color:var(--ink-soft);font-style:italic}
.rtb-pagination{margin-top:30px}
.rtb-pagination .page-numbers{display:inline-block;padding:6px 12px;border:1px solid var(--line);border-radius:8px;margin-right:6px}
.rtb-pagination .current{background:var(--teal);color:#fff;border-color:var(--teal)}

/* ---------- WooCommerce tweaks ---------- */
.woocommerce-message,.woocommerce-info,.woocommerce-error{border-top-color:var(--teal)!important}
.woocommerce span.onsale{background:var(--amber)!important}
.woocommerce ul.products li.product .price{color:var(--teal-deep)!important;font-family:var(--font-display)}
.woocommerce #respond input#submit,.woocommerce a.button,.woocommerce button.button,.woocommerce input.button{
  background:var(--teal)!important;color:#fff!important;border-radius:999px!important;font-weight:600!important;
}
.woocommerce #respond input#submit:hover,.woocommerce a.button:hover,.woocommerce button.button:hover,.woocommerce input.button:hover{background:var(--teal-deep)!important}
.woocommerce a.button.alt,.woocommerce button.button.alt{background:var(--amber)!important}
.woocommerce a.button.alt:hover,.woocommerce button.button.alt:hover{background:#c2762a!important}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .why-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr 1fr}
  .trust-item:nth-child(2){border-right:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;background:var(--surface);
    flex-direction:column;align-items:flex-start;gap:0;padding:8px 24px;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-soft);display:none;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav-toggle{display:block}
}
@media(max-width:560px){
  .trust-grid{grid-template-columns:1fr}
  .trust-item{border-right:0;border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{gap:20px}
}