/* === Guideline Electronics — shared brand styles === */
:root,[data-theme="light"]{
  --bg:#f7f7f5;--surface:#ffffff;--surface-2:#fafafa;--border:#e8e6e0;
  --text:#1a1a1a;--text-muted:#6b6b6b;--text-soft:#9a9a9a;
  --primary:#1e3a8a;--primary-hover:#172e6e;--primary-soft:#e6ecff;
  --accent:#ef4444;--success:#0e9f6e;--success-soft:#e3f5ee;
  --warning:#d97706;--danger:#dc2626;--info:#0284c7;
  --hero-grad:linear-gradient(120deg,#0c1a4f 0%,#1e3a8a 55%,#2563eb 100%);
  --primary-grad:linear-gradient(135deg,#1e3a8a,#2563eb);
  --radius:14px;--radius-sm:10px;--radius-lg:20px;
  --shadow-sm:0 1px 2px rgba(20,20,40,.04);
  --shadow:0 4px 14px rgba(20,20,40,.06);
  --shadow-lg:0 24px 60px rgba(20,20,40,.12);
}
[data-theme="dark"]{
  --bg:#0e1018;--surface:#181a24;--surface-2:#1f2230;--border:#2a2d3a;
  --text:#f1f2f6;--text-muted:#a2a5b3;--text-soft:#6c7080;
  --primary:#5b8bff;--primary-hover:#7aa2ff;--primary-soft:#1d2a4d;
  --hero-grad:linear-gradient(120deg,#0b0d18 0%,#1c2347 55%,#3458d9 100%);
  --primary-grad:linear-gradient(135deg,#3458d9,#5b8bff);
}
[data-theme="blue"]{
  --bg:#eef2fb;--surface:#ffffff;--surface-2:#f5f7fd;--border:#dde3f0;
  --text:#0f1736;--text-muted:#5b6480;--text-soft:#8b94ac;
  --primary:#1d3eb1;--primary-hover:#152d85;--primary-soft:#dce4ff;
  --accent:#e11d48;--success:#0e9f6e;--success-soft:#e3f5ee;
  --warning:#b45309;--danger:#be123c;--info:#0369a1;
  --hero-grad:linear-gradient(120deg,#091334 0%,#1d3eb1 55%,#3b6dff 100%);
  --primary-grad:linear-gradient(135deg,#1d3eb1,#3b6dff);
}
[data-theme="red"]{
  --bg:#fef6f5;--surface:#ffffff;--surface-2:#fff8f7;--border:#f3dad6;
  --text:#3b1212;--text-muted:#7a4848;--text-soft:#b07c7c;
  --primary:#dc2626;--primary-hover:#b91c1c;--primary-soft:#fde8e8;
  --accent:#ea580c;--success:#0e9f6e;--success-soft:#e3f5ee;
  --warning:#b45309;--danger:#7f1d1d;--info:#0284c7;
  --hero-grad:linear-gradient(120deg,#4c0c0c 0%,#b91c1c 55%,#ef4444 100%);
  --primary-grad:linear-gradient(135deg,#b91c1c,#ef4444);
}
[data-theme="green"]{
  --bg:#f0fbf4;--surface:#ffffff;--surface-2:#f5fbf8;--border:#cfe9d8;
  --text:#0d2818;--text-muted:#456052;--text-soft:#7d9b8b;
  --primary:#0e9f6e;--primary-hover:#0a7f57;--primary-soft:#d2f3e3;
  --accent:#ea580c;--success:#047857;--success-soft:#dcfce7;
  --warning:#b45309;--danger:#dc2626;--info:#0284c7;
  --hero-grad:linear-gradient(120deg,#064e3b 0%,#0e9f6e 55%,#34d399 100%);
  --primary-grad:linear-gradient(135deg,#0e9f6e,#34d399);
}
[data-theme="yellow"]{
  --bg:#fefbed;--surface:#ffffff;--surface-2:#fffbeb;--border:#f0e3b0;
  --text:#3b2e0a;--text-muted:#7a6420;--text-soft:#b09a4a;
  --primary:#ca8a04;--primary-hover:#a16207;--primary-soft:#fef3c7;
  --accent:#dc2626;--success:#15803d;--success-soft:#dcfce7;
  --warning:#b45309;--danger:#b91c1c;--info:#0e7490;
  --hero-grad:linear-gradient(120deg,#713f12 0%,#ca8a04 55%,#fbbf24 100%);
  --primary-grad:linear-gradient(135deg,#ca8a04,#fbbf24);
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,.font-display{font-family:'Space Grotesk','Inter',sans-serif;letter-spacing:-.01em;line-height:1.15}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
img{max-width:100%;display:block}

/* ===== TOPBAR ===== */
.topbar{position:sticky;top:0;z-index:50;background:color-mix(in srgb, var(--surface) 88%, transparent);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--border)}
.topbar-inner{max-width:1400px;margin:0 auto;padding:14px 28px;display:flex;align-items:center;gap:22px}
.brand{display:flex;align-items:center;gap:12px;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:19px;line-height:1.1}
.brand-mark{width:44px;height:44px;border-radius:10px;background:#fff;display:grid;place-items:center;overflow:hidden;border:1px solid var(--border);box-shadow:0 4px 14px rgba(20,30,90,.18)}
.brand-mark img{width:100%;height:100%;object-fit:cover}
.brand-text{display:flex;flex-direction:column;gap:1px}
.brand-text .tag{font-family:'Inter',sans-serif;font-size:10px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em}

.main-nav{display:flex;align-items:center;gap:4px;margin-left:18px}
.main-nav a{padding:8px 14px;border-radius:9px;font-size:14px;font-weight:500;color:var(--text-muted);transition:all .15s}
.main-nav a:hover{background:var(--surface-2);color:var(--text)}
.main-nav a.current{color:var(--primary);background:var(--primary-soft);font-weight:600}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:8px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:10px;font-weight:600;font-size:14px;transition:all .15s;border:1px solid transparent;font-family:inherit}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}
.btn-ghost:hover{background:var(--surface-2)}
.btn-sm{padding:7px 12px;font-size:13px}
.btn-lg{padding:13px 22px;font-size:15px}

/* ===== PAGE WRAP ===== */
.page{max-width:1200px;margin:0 auto;padding:32px 28px}
.page-hero{position:relative;overflow:hidden;border-radius:var(--radius-lg);background:var(--hero-grad);color:#fff;padding:54px 56px;margin-bottom:40px;min-height:240px;display:flex;align-items:center}
.page-hero::after{content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(239,68,68,.4) 0%,rgba(239,68,68,0) 70%);pointer-events:none}
.page-hero-inner{position:relative;z-index:1;max-width:680px}
.page-hero .eyebrow{display:inline-block;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.18);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px}
.page-hero h1{font-size:42px;font-weight:700;margin-bottom:14px}
.page-hero p{font-size:17px;opacity:.9;max-width:560px;line-height:1.55}

/* ===== SECTION ===== */
.section{margin-bottom:48px}
.section-head{margin-bottom:24px;max-width:760px}
.section-head .eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);margin-bottom:8px}
.section-head h2{font-size:30px;font-weight:700;margin-bottom:10px}
.section-head p{color:var(--text-muted);font-size:16px;line-height:1.6}

.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:all .2s}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:#d0cdc4}
.card h3{font-size:20px;font-weight:700;margin-bottom:8px}
.card p{color:var(--text-muted);font-size:14px;line-height:1.6}
.card .icon{width:48px;height:48px;border-radius:12px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-size:24px;margin-bottom:16px}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:1fr 1fr}.grid-2{grid-template-columns:1fr}}
@media(max-width:600px){.grid-3,.grid-4,.grid-2{grid-template-columns:1fr}}

/* ===== STATS ===== */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px;margin-bottom:48px}
@media(max-width:700px){.stats-row{grid-template-columns:1fr 1fr;gap:18px}}
.stat .v{font-family:'Space Grotesk',sans-serif;font-size:32px;font-weight:700;color:var(--primary)}
.stat .l{font-size:13px;color:var(--text-muted);margin-top:4px}

/* ===== FOOTER (compact, modern) ===== */
.site-footer{margin-top:60px;background:var(--surface);border-top:1px solid var(--border)}
.footer-inner{max-width:1400px;margin:0 auto;padding:36px 28px 20px}
.footer-top{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:32px;padding-bottom:28px}
@media(max-width:900px){.footer-top{grid-template-columns:1fr 1fr;gap:24px}}
.footer-brand-block{max-width:320px}
.footer-brand-block .brand{margin-bottom:14px}
.footer-brand-block p{font-size:13px;color:var(--text-muted);margin-bottom:14px;line-height:1.55}
.newsletter{display:flex;gap:6px;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:4px;max-width:300px}
.newsletter input{flex:1;border:none;background:transparent;padding:8px 10px;font-size:13px;color:var(--text);outline:none;font-family:inherit}
.newsletter button{padding:7px 14px;background:var(--primary);color:#fff;border-radius:7px;font-size:13px;font-weight:600}
.footer-col h5{font-size:12px;font-weight:700;color:var(--text);text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}
.footer-col a{display:block;font-size:13.5px;color:var(--text-muted);padding:5px 0;transition:color .15s}
.footer-col a:hover{color:var(--primary)}

.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;padding:18px 0 4px;border-top:1px solid var(--border);font-size:13px;color:var(--text-muted)}
.footer-social{display:flex;gap:8px}
.footer-social a{width:34px;height:34px;border-radius:50%;background:var(--surface-2);border:1px solid var(--border);display:grid;place-items:center;color:var(--text-muted);transition:all .2s}
.footer-social a:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px)}
.footer-legal{display:flex;gap:18px;flex-wrap:wrap}
.footer-legal a{color:var(--text-muted)}
.footer-legal a:hover{color:var(--primary)}
.payment-row{display:flex;gap:6px;align-items:center}
.payment-row span{padding:3px 8px;background:var(--surface-2);border:1px solid var(--border);border-radius:5px;font-size:10px;font-weight:700;color:var(--text-muted);letter-spacing:.05em}

/* ===== misc helpers ===== */
.pill{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary)}
.text-center{text-align:center}
.divider{height:1px;background:var(--border);margin:32px 0}

/* CTA banner */
.cta-banner{background:var(--hero-grad);color:#fff;border-radius:var(--radius-lg);padding:42px 48px;text-align:center;margin:40px 0}
.cta-banner h2{font-size:30px;font-weight:700;margin-bottom:10px}
.cta-banner p{font-size:16px;opacity:.92;margin-bottom:20px;max-width:520px;margin-left:auto;margin-right:auto}
.cta-banner .btn-primary{background:#fff;color:var(--primary)}
.cta-banner .btn-primary:hover{background:#f3f4f6}
.cta-banner .btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}
.cta-banner .btn-ghost:hover{background:rgba(255,255,255,.1)}

/* mobile nav toggle */
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;align-items:center;justify-content:center;color:var(--text-muted)}
.menu-toggle:hover{background:var(--surface-2)}
@media(max-width:900px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--surface);border-bottom:1px solid var(--border);padding:8px;gap:2px;margin:0}
  .main-nav.open{display:flex}
  .menu-toggle{display:inline-flex}
  .page-hero{padding:36px 28px}
  .page-hero h1{font-size:30px}
}

/* === favorite heart button === */
.product-img{position:relative}
.fav-btn{position:absolute;top:10px;right:10px;width:30px;height:30px;border-radius:50%;background:rgba(255,255,255,.92);border:none;color:#9aa1ad;cursor:pointer;display:grid;place-items:center;font-size:16px;line-height:1;transition:all .15s;z-index:2;padding:0}
.fav-btn:hover{transform:scale(1.1);color:#ef4444;background:#fff}
.fav-btn.on{color:#ef4444}