:root{--ink:#202020;--muted:#6d6d6d;--line:#e7e7e7;--soft:#f6f5f2;--accent:#9b7b52;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:#fff;line-height:1.55}a{color:inherit;text-decoration:none}.top{background:#1d1d1d;color:#fff;text-align:center;padding:8px 16px;font-size:13px}.nav{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line)}.navin{max-width:1180px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:18px 22px;gap:24px}.brand{font-size:25px;letter-spacing:4px;font-weight:700}.brand small{display:block;font-size:9px;letter-spacing:3px;font-weight:400;color:#777}.links{display:flex;gap:22px;font-size:13px}.links a:hover{color:var(--accent)}.hero{min-height:650px;display:grid;place-items:center;text-align:center;padding:80px 22px;background:linear-gradient(120deg,#f7f7f5,#e8e6e1)}.hero h1{font-size:62px;line-height:1.05;margin:0 0 18px;font-weight:400;letter-spacing:-2px}.hero p{font-size:19px;color:#555;max-width:700px;margin:0 auto 30px}.btn{display:inline-block;padding:13px 25px;border:1px solid #222;margin:5px;font-size:12px;letter-spacing:1.5px;text-transform:uppercase}.btn.dark{background:#222;color:#fff}.section{max-width:1180px;margin:auto;padding:80px 22px}.section h2{text-align:center;font-size:36px;font-weight:400;margin:0 0 12px}.lead{text-align:center;color:var(--muted);max-width:720px;margin:0 auto 45px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{border:1px solid var(--line);background:#fff}.visual{aspect-ratio:4/3;background:linear-gradient(145deg,#efefed,#dcdad5);display:grid;place-items:center;color:#777;text-align:center;padding:20px}.visual .icon{font-size:64px;opacity:.7}.cardbody{padding:24px}.card h3{margin:0 0 7px;font-weight:500}.price{font-size:17px;margin:10px 0}.tag{display:inline-block;font-size:10px;letter-spacing:1px;text-transform:uppercase;border:1px solid #bbb;padding:5px 8px;margin-bottom:12px}.split{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:55px}.feature{background:var(--soft)}.feature ul{padding-left:18px;color:#555}.support{background:#222;color:#fff}.support .lead{color:#bbb}.supportgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.supportbox{border:1px solid #555;padding:28px;min-height:150px}.supportbox h3{margin-top:0;font-size:17px}.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.review{background:#fafafa;padding:25px;border:1px solid var(--line)}.stars{letter-spacing:3px}.footer{border-top:1px solid var(--line);padding:50px 22px}.footerin{max-width:1180px;margin:auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.footer p,.footer a{font-size:13px;color:#666}.pagehead{padding:90px 22px 55px;text-align:center;background:var(--soft)}.pagehead h1{font-size:44px;font-weight:400;margin:0}.products{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.table{width:100%;border-collapse:collapse}.table td,.table th{border-bottom:1px solid var(--line);padding:13px;text-align:left}.faq details{border-bottom:1px solid var(--line);padding:15px 0}.faq summary{font-weight:600;cursor:pointer}.notice{padding:14px 18px;background:#fff7e7;border:1px solid #ead5aa;font-size:13px;margin:20px 0}.contact{display:grid;grid-template-columns:1fr 1fr;gap:45px}.field{display:block;width:100%;padding:13px;border:1px solid #ccc;margin:8px 0 16px;font:inherit}textarea.field{height:130px}.mobile{display:none}@media(max-width:800px){.links{display:none}.mobile{display:block}.hero{min-height:520px}.hero h1{font-size:42px}.grid3,.products,.reviews,.supportgrid,.split,.footerin,.contact{grid-template-columns:1fr}.section{padding:55px 18px}.brand{font-size:21px}.pagehead h1{font-size:36px}}

.visual.photo{padding:0;overflow:hidden;background:#f3f3f1}.visual.photo img{width:100%;height:100%;object-fit:cover;display:block}.notice{font-size:12px;color:#777}

.product-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,#f4f1ec,#e7e2da);min-height:250px;border:1px solid #eee}.product-mark{font-size:34px;letter-spacing:8px;font-weight:600}.product-kind{margin-top:14px;font-size:12px;letter-spacing:2px}.lock-reference{display:grid;grid-template-columns:240px 1fr;gap:36px;align-items:center;max-width:900px;margin:36px auto}.lock-reference img{width:100%;image-rendering:auto;background:#fff;object-fit:contain}.lock-reference h3{font-size:28px;margin:0 0 12px}@media(max-width:700px){.lock-reference{grid-template-columns:1fr}.lock-reference img{max-width:260px;margin:auto}}

.product-detail{padding-top:80px}.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}.gallery img{width:100%;height:auto;display:block;border:1px solid var(--line);background:#fafafa}.service-gallery{grid-template-columns:repeat(2,1fr)}@media(max-width:800px){.gallery,.service-gallery{grid-template-columns:1fr}}

.detail-copy{max-width:980px;margin:0 auto 42px;padding:30px 34px;background:#fafafa;border:1px solid var(--line)}.detail-copy h3{margin:0 0 12px;font-size:24px;font-weight:500}.detail-copy>p{color:#555;margin:0 0 24px}.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 34px}.feature-list>div{padding:16px 0;border-top:1px solid var(--line)}.feature-list b{display:block;font-size:15px;margin-bottom:5px}.feature-list span{display:block;color:#666;font-size:14px}@media(max-width:800px){.detail-copy{padding:24px 20px}.feature-list{grid-template-columns:1fr}}
.lock-model{padding:54px 0;border-top:1px solid #e8e8e8}.lock-model:first-of-type{border-top:0}.lock-hero{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}.lock-hero img{width:100%;max-height:520px;object-fit:contain;background:#fafafa}.lock-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}.lock-gallery img{width:100%;height:280px;object-fit:contain;background:#fafafa;border:1px solid #eee}.lock-video{width:100%;max-height:620px;margin-top:24px;background:#000}.intro-gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.intro-gallery img{width:100%;height:auto;display:block}.modelnav{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:22px}@media(max-width:760px){.lock-hero{grid-template-columns:1fr}.lock-gallery,.intro-gallery{grid-template-columns:1fr}.lock-gallery img{height:auto}}

/* V7 video hero */
.video-hero{position:relative;overflow:hidden;background:#111;color:#fff;isolation:isolate}
.hero-video{position:absolute;inset:0;z-index:-3;overflow:hidden;pointer-events:none;background:#111}
.hero-video iframe{position:absolute;top:50%;left:50%;width:177.77777778vh;min-width:100%;height:56.25vw;min-height:100%;transform:translate(-50%,-50%);border:0}
.hero-overlay{position:absolute;inset:0;z-index:-2;background:linear-gradient(90deg,rgba(0,0,0,.62),rgba(0,0,0,.35),rgba(0,0,0,.58))}
.hero-content{position:relative;z-index:1;text-shadow:0 2px 18px rgba(0,0,0,.55)}
.video-hero .tag{border-color:rgba(255,255,255,.72);background:rgba(0,0,0,.2);color:#fff}
.video-hero h1{color:#fff;font-weight:500}
.video-hero p{color:rgba(255,255,255,.94)}
.video-hero .hero-btn{color:#fff;border-color:#fff;background:rgba(0,0,0,.24);text-shadow:none}
.video-hero .hero-btn:hover{background:#fff;color:#111}
@media(max-width:800px){.video-hero{min-height:560px}.hero-video iframe{width:220vw;height:123.75vw}}

/* V8: ensure YouTube video is visible inside homepage hero */
.video-hero{position:relative;overflow:hidden;background:#111 !important;color:#fff;isolation:isolate}
.video-hero .hero-video{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none;background:#111}
.video-hero .hero-video iframe{position:absolute;top:50%;left:50%;width:177.77777778vh;min-width:100%;height:56.25vw;min-height:100%;transform:translate(-50%,-50%) scale(1.02);border:0}
.video-hero .hero-overlay{position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(0,0,0,.62),rgba(0,0,0,.30),rgba(0,0,0,.58));pointer-events:none}
.video-hero .hero-content{position:relative;z-index:2;color:#fff;text-shadow:0 3px 20px rgba(0,0,0,.8)}
.video-hero .hero-content h1{color:#fff !important;font-weight:500}
.video-hero .hero-content p{color:#fff !important;font-weight:400;text-shadow:0 2px 12px rgba(0,0,0,.9)}
.video-hero .hero-content .tag{color:#fff;border-color:rgba(255,255,255,.85);background:rgba(0,0,0,.28)}
.video-hero .hero-btn{color:#fff !important;border-color:#fff;background:rgba(0,0,0,.35);box-shadow:0 2px 14px rgba(0,0,0,.18)}
.video-hero .hero-btn:hover{background:#fff;color:#111 !important}
@media(max-width:800px){.video-hero .hero-video iframe{width:220vw;height:123.75vw}}

/* V10 Smart Locks video title background */
.lock-video-hero{min-height:430px;display:grid;place-items:center;padding:70px 22px;background:#111 !important}
.lock-video-hero .hero-content{text-align:center;width:100%}
.lock-video-hero .hero-content h1{font-size:48px;margin:0 0 14px;color:#fff !important}
.lock-video-hero .hero-content p{font-size:17px;margin:0 auto 20px;color:#fff !important}
.lock-video-hero .modelnav{margin-top:22px}
.lock-video-hero .hero-btn{min-width:84px;color:#fff !important;border-color:rgba(255,255,255,.9);background:rgba(0,0,0,.35)}
@media(max-width:800px){.lock-video-hero{min-height:390px;padding:55px 18px}.lock-video-hero .hero-content h1{font-size:38px}}

/* V12 video placements */
.support-video-card{position:relative;overflow:hidden;aspect-ratio:1/1;background:#111;min-height:420px}
.support-video-card iframe{position:absolute;top:50%;left:50%;width:177.7778vh;min-width:100%;height:56.25vw;min-height:100%;transform:translate(-50%,-50%);border:0;pointer-events:none}
.toilet-video-hero{position:relative;min-height:430px;padding:70px 22px;display:grid;place-items:center;overflow:hidden;background:#111 !important;isolation:isolate}
.toilet-video-hero .hero-content{position:relative;z-index:2;text-align:center;color:#fff;text-shadow:0 3px 20px rgba(0,0,0,.85)}
.toilet-video-hero .hero-content h1{color:#fff !important;font-size:48px;margin:0 0 12px;font-weight:500}
.toilet-video-hero .hero-content p{color:#fff !important;font-size:18px;margin:0}
.toilet-video-hero .hero-overlay{background:linear-gradient(90deg,rgba(0,0,0,.58),rgba(0,0,0,.28),rgba(0,0,0,.58))}
@media(max-width:800px){.support-video-card{min-height:340px}.toilet-video-hero{min-height:390px;padding:55px 18px}.toilet-video-hero .hero-content h1{font-size:38px}}

/* V13 embedded video panels */
.support-video{max-width:900px;margin:28px auto 38px;aspect-ratio:16/9;background:#111;overflow:hidden}
.support-video iframe,.about-video iframe{width:100%;height:100%;border:0;display:block}
.about-video{width:100%;aspect-ratio:4/3;background:#111;overflow:hidden}
@media(max-width:700px){.support-video{margin:20px 0 28px}.about-video{aspect-ratio:16/9}}

/* V14 compact support media */
.support-media-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:24px 0 32px}.support-media-item{background:#f5f4f1;aspect-ratio:16/9;overflow:hidden}.support-media-item iframe{width:100%;height:100%;border:0;display:block}.support-media-item:not(.support-featured){aspect-ratio:9/16;max-height:390px;justify-self:center;width:min(100%,220px)}.support-featured{grid-column:span 2}.compact-gallery{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.compact-gallery img{width:100%;height:190px;object-fit:contain;background:#f7f7f7;cursor:zoom-in}@media(max-width:800px){.support-media-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.support-featured{grid-column:span 2}.compact-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}.compact-gallery img{height:150px}}

.brand-logo{display:flex;align-items:center}.brand-logo img{display:block;width:150px;max-width:100%;height:auto;object-fit:contain}@media(max-width:800px){.brand-logo img{width:125px}}
/* V16 balanced product galleries */
.product-gallery{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;align-items:stretch}
.product-gallery img{width:100%;height:250px;object-fit:contain;background:#f6f7f8;border:1px solid #ececec;cursor:zoom-in}
@media(max-width:900px){.product-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}.product-gallery img{height:220px}}
@media(max-width:560px){.product-gallery{grid-template-columns:1fr}.product-gallery img{height:auto}}

/* V17 warranty & pricing */
.detail-price,.lock-price{font-size:1.35rem;font-weight:800;margin:-8px 0 18px;color:#171717}.lock-price small{display:block;font-size:.78rem;font-weight:600;color:#6d6d6d;margin-top:4px}.warranty-page{max-width:1050px}.warranty-intro,.warranty-block,.return-policy,.warranty-notice{background:#fff;border:1px solid #e8e3da;border-radius:18px;padding:28px;margin:0 0 24px}.warranty-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-bottom:24px}.warranty-card{background:#f7f4ee;border-radius:18px;padding:24px}.warranty-page h2{text-align:left}.warranty-page h3{margin-top:0}.warranty-page li{margin:9px 0;line-height:1.55}.return-fees{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:22px 0}.return-fees div{background:#f7f4ee;border-radius:14px;padding:18px}.return-fees b{display:block;font-size:1.4rem}.return-fees span{font-size:.9rem;color:#666}.warranty-notice{background:#1d1d1d;color:#fff}.warranty-notice h3{color:#fff}@media(max-width:760px){.warranty-grid,.return-fees{grid-template-columns:1fr}.links{gap:10px}.links a{font-size:.72rem}}