:root,[data-theme="light"]{
  --text-xs:clamp(.75rem,.7rem + .25vw,.875rem);--text-sm:clamp(.875rem,.8rem + .35vw,1rem);--text-base:clamp(1rem,.95rem + .25vw,1.125rem);--text-lg:clamp(1.125rem,1rem + .75vw,1.5rem);--text-xl:clamp(1.5rem,1.2rem + 1.25vw,2.2rem);--text-hero:clamp(3rem,7vw,5.8rem);
  --space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;
  --color-bg:#ffffff;--color-surface:#fbfbfc;--color-surface-2:#f6f7f9;--color-surface-offset:#f1f4f8;--color-border:rgba(15,23,42,.08);--color-divider:rgba(15,23,42,.06);--color-text:#111827;--color-text-muted:#667085;--color-text-faint:#98a2b3;--color-primary:#111827;--color-primary-hover:#222b3c;--color-inverse:#ffffff;
  --radius-sm:.75rem;--radius-md:1rem;--radius-lg:1.5rem;--radius-xl:2rem;--radius-full:9999px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.04);--shadow-md:0 18px 40px rgba(15,23,42,.07);
  --font-body:'Manrope',system-ui,sans-serif;--font-display:'Instrument Serif',Georgia,serif;
  --content:1200px;--transition:180ms cubic-bezier(.16,1,.3,1);
}
[data-theme="dark"]{
  --color-bg:#0c1117;--color-surface:#11161d;--color-surface-2:#171d26;--color-surface-offset:#1d2531;--color-border:rgba(255,255,255,.08);--color-divider:rgba(255,255,255,.06);--color-text:#f8fafc;--color-text-muted:#c5ccd6;--color-text-faint:#808a98;--color-primary:#f8fafc;--color-primary-hover:#e2e8f0;--color-inverse:#0c1117;--shadow-sm:0 1px 2px rgba(0,0,0,.2);--shadow-md:0 18px 40px rgba(0,0,0,.3);
}
*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:none;text-size-adjust:none;scroll-behavior:smooth}body{margin:0;min-height:100dvh;font-family:var(--font-body);font-size:var(--text-base);line-height:1.6;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}img,svg{display:block;max-width:100%;height:auto}a{text-decoration:none;color:inherit}button,input{font:inherit;color:inherit}button{cursor:pointer;border:none;background:none}h1,h2,h3{line-height:1.02;letter-spacing:-.04em}p{max-width:72ch}code{font-size:.9em;background:var(--color-surface-2);padding:.2rem .4rem;border-radius:.4rem}
:focus-visible{outline:2px solid var(--color-primary);outline-offset:3px;border-radius:var(--radius-sm)}
.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:1rem;top:1rem;padding:.8rem 1rem;background:var(--color-primary);color:var(--color-inverse);border-radius:var(--radius-full);z-index:100}
.shell{max-width:var(--content);margin:0 auto;padding:0 var(--space-4)}
.site-header{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--color-bg) 88%,transparent);backdrop-filter:blur(16px);border-bottom:1px solid var(--color-divider)}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);padding:var(--space-4) 0}.brand{display:flex;align-items:center;gap:.9rem;font-weight:800}.brand-mark{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(145deg,#fff,#eef2f7);box-shadow:var(--shadow-sm);color:#111827}.brand-text{display:flex;flex-direction:column;line-height:1.05}.brand-text small{font-size:var(--text-xs);letter-spacing:.12em;text-transform:uppercase;color:var(--color-text-muted);font-weight:700}.desktop-nav{display:none;gap:var(--space-5);font-size:var(--text-sm);color:var(--color-text-muted)}.header-actions{display:flex;gap:var(--space-2)}.header-btn{min-width:44px;min-height:44px;border-radius:var(--radius-full);display:grid;place-items:center;background:var(--color-surface);border:1px solid var(--color-border)}
.hero{padding:clamp(3rem,8vw,7rem) 0 var(--space-12)}.hero-panel{display:grid;gap:var(--space-8);padding:clamp(1.5rem,4vw,3rem);background:var(--color-surface);border:1px solid var(--color-border);border-radius:32px;box-shadow:var(--shadow-md)}.eyebrow{font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.16em;color:var(--color-text-muted);font-weight:700}.hero h1{font-family:var(--font-display);font-size:var(--text-hero);margin:.4rem 0 1rem;max-width:10ch}.lede,.section-note,.footer-copy{color:var(--color-text-muted)}
.search-form{display:flex;align-items:center;gap:var(--space-3);padding:.9rem 1rem .9rem 1.2rem;background:var(--color-bg);border:1px solid var(--color-border);border-radius:999px;box-shadow:var(--shadow-sm);margin:var(--space-8) 0 var(--space-4)}.search-form input{flex:1;border:none;background:transparent;outline:none;min-width:0;font-size:1rem}.search-form button,.primary-link,.secondary-link{min-height:44px;border-radius:999px;padding:.85rem 1.2rem;font-weight:700;font-size:var(--text-sm)}.search-form button,.primary-link{background:var(--color-primary);color:var(--color-inverse)}.secondary-link{background:var(--color-bg);border:1px solid var(--color-border);color:var(--color-text-muted)}
.suggestions{display:flex;gap:.75rem;flex-wrap:wrap}.suggestion-chip{padding:.7rem 1rem;border-radius:999px;background:var(--color-surface-2);border:1px solid var(--color-border);color:var(--color-text-muted)}.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-4)}.stat-card,.feature-card,.notice-card{padding:var(--space-5);background:var(--color-bg);border:1px solid var(--color-border);border-radius:24px}.stat-card strong{display:block;font-size:var(--text-lg)}
.section{padding:var(--space-8) 0 var(--space-12)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:var(--space-4);margin-bottom:var(--space-6)}.section-head h2{font-size:var(--text-xl);margin:0}.results-root{display:grid;gap:var(--space-5)}.board{display:grid;gap:var(--space-5)}.price-panel{padding:var(--space-6);background:var(--color-surface);border:1px solid var(--color-border);border-radius:30px}.panel-head{display:flex;align-items:start;justify-content:space-between;gap:var(--space-4);margin-bottom:var(--space-4)}.tag{display:inline-flex;padding:.45rem .8rem;border-radius:999px;background:var(--color-surface-2);font-size:var(--text-xs);font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--color-text-muted)}.merchant-list{display:grid;gap:0}.merchant{display:grid;grid-template-columns:1fr auto;gap:.35rem 1rem;padding:1rem 0;border-top:1px solid var(--color-divider)}.merchant:first-child{border-top:none;padding-top:0}.merchant small{color:var(--color-text-muted)}.merchant strong{font-size:1.05rem}.merchant-actions{display:flex;gap:.75rem;align-items:center;justify-content:flex-end;flex-wrap:wrap}
.detail-card{padding:clamp(1.5rem,4vw,3rem);background:linear-gradient(180deg,var(--color-surface),var(--color-bg));border:1px solid var(--color-border);border-radius:36px}.detail-layout{display:grid;gap:var(--space-6);align-items:center}.product-stage{aspect-ratio:1/1;background:radial-gradient(circle at top,#eef3f8,transparent 60%),linear-gradient(180deg,#fff,#f5f8fb);border-radius:30px;border:1px solid var(--color-border);display:grid;place-items:center;padding:var(--space-8)}.headset{position:relative;width:min(320px,72%);height:min(320px,72%)}.headset:before,.headset:after{content:"";position:absolute;background:#fff;border:1px solid #dde5ee;box-shadow:0 24px 40px rgba(148,163,184,.24)}.headset:before{width:92px;height:210px;border-radius:48px 48px 56px 56px;left:16%;top:12%;transform:rotate(-8deg)}.headset:after{width:92px;height:210px;border-radius:48px 48px 56px 56px;right:16%;top:12%;transform:rotate(8deg)}.detail-copy h3{font-family:var(--font-display);font-size:clamp(2.4rem,6vw,4.8rem);margin:0 0 1rem}.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-4);margin:var(--space-6) 0}.spec-card{padding:var(--space-4);background:var(--color-bg);border:1px solid var(--color-border);border-radius:20px}.spec-card span{color:var(--color-text-muted)}
.feature-grid,.notice-grid,.footer-grid{display:grid;gap:var(--space-4)}.site-footer{padding:var(--space-10) var(--space-4) var(--space-16);color:var(--color-text-muted)}.footer-brand{margin-bottom:1rem}.empty-state{padding:var(--space-8);border-radius:28px;background:var(--color-surface);border:1px dashed var(--color-border)}.hidden{display:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media (min-width:760px){.desktop-nav{display:flex}.hero-panel{grid-template-columns:1.15fr .85fr;align-items:center}.board{grid-template-columns:1fr 1fr}.detail-layout{grid-template-columns:1fr 1fr}.feature-grid{grid-template-columns:repeat(3,1fr)}.notice-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.2fr .8fr .8fr}}
@media (max-width:759px){.hero-stats{grid-template-columns:1fr}.merchant{grid-template-columns:1fr}.merchant-actions{justify-content:flex-start}.search-form{padding:.8rem .85rem}.search-form button{padding:.8rem 1rem}.spec-grid{grid-template-columns:1fr 1fr}}
@media (prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}