/* optical360 styles (shared) */
:root{--primary:#0F5866;--accent:#00A3B4;--accent-2:#F2B138;--muted:#6B6B6B;--bg:#F6F7F8;--card:#FFFFFF;--max-width:1200px;--radius:14px}
*{box-sizing:border-box}html,body{height:100%;margin:0;font-family:Inter, Roboto, system-ui, -apple-system, 'Segoe UI', Arial;background:var(--bg);color:#111}
a{color:var(--primary);text-decoration:none}
.container{max-width:var(--max-width);margin:0 auto;padding:24px}
header{background:transparent;padding:12px 0}
.topbar{background:#eaf7f8;padding:6px 0;font-size:13px;color:#07373b}
.logo{display:flex;gap:12px;align-items:center}
.logo .mark{width:44px;height:44px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:white;font-weight:700}
nav{display:flex;gap:18px;align-items:center}
.nav-right{margin-left:auto;display:flex;gap:12px;align-items:center}
.btn{background:var(--accent);color:white;padding:10px 16px;border-radius:10px;border:0;font-weight:600;cursor:pointer}
.btn--outline{background:transparent;border:1px solid rgba(15,88,102,0.12);color:var(--primary)}
.hero{display:grid;grid-template-columns:1fr 480px;gap:28px;align-items:center;padding:36px 0}
.hero-card{background:linear-gradient(180deg, rgba(255,255,255,0.9), rgba(255,255,255,0.7));padding:28px;border-radius:18px;box-shadow:0 6px 30px rgba(15,88,102,0.06)}
.h-title{font-size:34px;margin:0 0 10px;line-height:1.02}
.h-sub{color:var(--muted);margin:0 0 18px}
.hero-stats{display:flex;gap:12px}
.card-media{background:var(--card);border-radius:12px;padding:10px;display:flex;flex-direction:column;gap:16px;align-items:center}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:24px}
.category{background:linear-gradient(180deg,#fff,#fbfdff);padding:18px;border-radius:12px;text-align:center;box-shadow:0 4px 20px rgba(12,34,40,0.04)}
.category img{width:100%;height:140px;object-fit:cover;border-radius:8px}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:28px 0}
.feature{background:var(--card);padding:18px;border-radius:12px;text-align:center}
.products{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.product{background:var(--card);padding:14px;border-radius:12px;box-shadow:0 6px 20px rgba(17,17,17,0.04)}
.product img{width:100%;height:160px;object-fit:cover;border-radius:8px}
.product .p-title{font-weight:600;margin:8px 0}
.price{color:var(--primary);font-weight:700}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;margin:36px 0}
.testimonials{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.testimonial{background:var(--card);padding:18px;border-radius:12px}
footer{padding:28px 0;margin-top:36px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:18px}
.small{font-size:13px;color:var(--muted)}
.contact-card{background:linear-gradient(180deg,#fff,#fbfdff);padding:18px;border-radius:12px}
.page{background:var(--card);padding:22px;border-radius:12px;margin:18px 0}
h2{margin-top:0}
pre.policy{white-space:pre-wrap;font-family:inherit;color:#222}
@media (max-width:1000px){.hero{grid-template-columns:1fr}.grid,.features,.products{grid-template-columns:repeat(2,1fr)}.testimonials{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.cols{grid-template-columns:1fr}}
@media (max-width:640px){.grid,.features,.products{grid-template-columns:1fr}nav{display:none}.nav-right{display:none}.logo .text{display:none}.container{padding:16px}}
.muted{color:var(--muted)}
.pill{display:inline-block;padding:6px 10px;border-radius:999px;background:#eef8f9;color:var(--primary);font-weight:600}
.chip{font-size:13px;padding:6px 10px;background:#fff;border-radius:8px;border:1px solid #eef3f4}
.modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:rgba(6,10,12,0.5);z-index:60}
.modal.open{display:flex}
.modal-card{width:920px;background:var(--card);border-radius:12px;padding:18px;display:grid;grid-template-columns:420px 1fr;gap:18px}
.close{background:transparent;border:0;font-size:18px;cursor:pointer}
input,textarea,select{padding:10px;border-radius:8px;border:1px solid #e6eaec;width:100%;font-size:15px}
label{font-weight:600;font-size:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:640px){.form-row{grid-template-columns:1fr}}