/* corporate-clean + rounded + flat + centered-minimal + solid
   #4A90E2 / #C0E0B1 / #1D2A3C / #ECF1F1
   reviews: square-frame avatar, two-col header */

:root { --a:#4A90E2; --g:#C0E0B1; --d:#1D2A3C; --bg:#ECF1F1; --brd:#ccd8e8; }
* { box-sizing:border-box; margin:0; padding:0; }
body { font-family:'Inter',sans-serif; background:var(--bg); color:#1a1a1a; font-size:clamp(14px,4vw,16px); -webkit-font-smoothing:antialiased; }

/* HEADER centered-minimal */
.site-header { background:#fff; padding:22px 16px 0; text-align:center; }
.header-inner { max-width:1200px; margin:0 auto; padding-bottom:16px; }
.header-title { font-size:clamp(16px,3.8vw,23px); font-weight:700; color:var(--d); line-height:1.3; }
.header-rule { height:1px; background:var(--brd); }

/* MAIN */
.site-main { max-width:1200px; margin:0 auto; padding:28px 16px 52px; }

/* PRODUCT SECTION */
.product-section { display:grid; grid-template-columns:1fr; background:#fff; border:1px solid var(--brd); border-radius:12px; overflow:hidden; margin-bottom:40px; }
@media(min-width:768px){.product-section{grid-template-columns:1fr 1fr;}}

/* GALLERY */
.gallery-block { padding:22px; border-bottom:1px solid var(--brd); }
@media(min-width:768px){.gallery-block{border-bottom:none;border-right:1px solid var(--brd);}}
.sr-only { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); }
.gimg { display:none; max-width:100%; height:auto; width:100%; object-fit:contain; animation:fi .3s ease; }
@keyframes fi{from{opacity:0}to{opacity:1}}
.main-img-wrap { background:#f0f5fb; border:1px solid var(--brd); border-radius:8px; min-height:240px; display:flex; align-items:center; justify-content:center; padding:12px; margin-bottom:12px; }
#i1:checked~.main-img-wrap .g1{display:block}#i2:checked~.main-img-wrap .g2{display:block}#i3:checked~.main-img-wrap .g3{display:block}#i4:checked~.main-img-wrap .g4{display:block}
.thumbs { display:flex; gap:7px; justify-content:center; }
.tl { cursor:pointer; border-radius:6px; border:1px solid var(--brd); overflow:hidden; display:block; transition:border-color .2s; }
.tl:hover{border-color:var(--a);}
.tl img { width:52px; height:52px; object-fit:cover; display:block; }
#i1:checked~.thumbs label[for="i1"],#i2:checked~.thumbs label[for="i2"],#i3:checked~.thumbs label[for="i3"],#i4:checked~.thumbs label[for="i4"]{border:2px solid var(--a);}

/* PRODUCT INFO */
.product-info { padding:22px; }
.pi-tags { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:12px; }
.tag { font-size:11px; font-weight:600; color:var(--d); background:var(--g); padding:3px 10px; border-radius:6px; opacity:.85; }
.product-title { font-size:clamp(15px,3.5vw,20px); font-weight:700; color:var(--d); line-height:1.35; margin-bottom:12px; }
.spec-line { height:1px; background:var(--brd); margin-bottom:14px; }
.feat-list { list-style:none; display:flex; flex-direction:column; gap:8px; margin-bottom:16px; }
.feat { font-size:clamp(13px,3.5vw,14px); color:#444; line-height:1.6; padding-left:13px; position:relative; }
.feat::before { content:''; position:absolute; left:0; top:8px; width:5px; height:5px; background:var(--a); border-radius:50%; }
.kw-note { font-size:13px; color:#555; background:#eaf2fb; border-left:3px solid var(--a); padding:10px 14px; border-radius:0 8px 8px 0; }

/* CTA solid */
.cta-wrap { text-align:center; margin-bottom:44px; }
.cta-btn { display:inline-block; background:var(--a); color:#fff; font-weight:700; font-size:clamp(14px,4vw,16px); text-transform:uppercase; letter-spacing:.08em; padding:16px 52px; min-height:44px; border-radius:8px; text-decoration:none; box-shadow:none; transition:all .2s; }
.cta-btn:hover{background:#2a6ec0;box-shadow:0 4px 18px rgba(74,144,226,.4);transform:translateY(-1px);}
.cta-btn:active{transform:translateY(0);}

/* REVIEWS — square avatar, two-col header */
.reviews-section { max-width:800px; margin:0 auto; padding-bottom:40px; }
.rev-title { font-size:clamp(20px,4vw,26px); font-weight:700; color:var(--d); margin-bottom:22px; padding-bottom:8px; border-bottom:2px solid var(--g); display:inline-block; }
.reviews-list { display:flex; flex-direction:column; }
.rev-item { padding:20px 0; }
.rev-divider { height:1px; background:var(--brd); }
.rev-head { display:flex; gap:14px; align-items:flex-start; margin-bottom:8px; }
.rev-ava { width:44px; height:44px; border-radius:8px; object-fit:cover; flex-shrink:0; border:2px solid var(--a); }
.rev-info { flex:1; }
.rev-name { font-weight:700; font-size:15px; color:var(--d); margin-bottom:2px; }
.stars { display:block; color:var(--a); font-size:13px; font-weight:700; margin-bottom:2px; }
.rev-hl { font-weight:600; font-size:13px; color:#333; }
.rev-date { font-size:12px; color:#bbb; margin-bottom:5px; }
.rev-badge { display:block; font-size:11px; color:#999; margin-bottom:8px; }
.rev-text { font-size:clamp(13px,3.5vw,14px); color:#444; line-height:1.7; margin-bottom:8px; }
.rev-text:last-of-type{margin-bottom:0;}

/* FOOTER */
.site-footer { background:var(--d); padding:28px 16px; }
.footer-inner { max-width:1200px; margin:0 auto; text-align:center; }
.fname { font-size:12px; color:rgba(255,255,255,.3); margin-bottom:14px; font-weight:600; text-transform:uppercase; letter-spacing:.05em; }
.fnav { display:flex; flex-direction:column; align-items:center; gap:8px; }
@media(min-width:768px){.fnav{flex-direction:row;justify-content:center;gap:16px;}}
.flink { color:rgba(255,255,255,.4); font-size:11px; text-transform:uppercase; letter-spacing:.08em; font-weight:600; text-decoration:none; transition:color .2s; }
.flink:hover{color:var(--g);}
.fsep { color:rgba(255,255,255,.12); display:none; }
@media(min-width:768px){.fsep{display:inline;}}