*{margin:0;padding:0;box-sizing:border-box}
:root{
  --navy:#0d2d65;--deep:#081d42;--sky:#48bdef;--blue:#1f6fd1;--blue-dk:#17599f;
  --ink:#0f1b2d;--muted:#5b6678;--line:#e3e8ef;--paper:#ffffff;--mist:#f4f7fb;
  --radius:14px;--shadow:0 18px 40px -18px rgba(8,29,66,.35)
}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:'Manrope','Inter',sans-serif;letter-spacing:-.02em;line-height:1.15}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);margin-bottom:.9rem}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--blue);color:#fff;padding:14px 28px;border-radius:10px;font-weight:700;font-size:1rem;text-decoration:none;transition:background .2s,transform .2s}
.btn:hover{background:var(--blue-dk);transform:translateY(-1px)}
.btn svg{width:18px;height:18px}
.btn-ghost{background:transparent;border:1.5px solid rgba(255,255,255,.45)}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{background:#eaf3fd}

/* Promo strip */
.promo{background:var(--deep);color:#dbe8f8;font-size:.85rem;text-align:center;padding:9px 16px}
.promo strong{color:var(--sky);font-weight:700}
.promo .dot{display:inline-block;margin:0 10px;opacity:.5}

/* Header */
.header{background:var(--navy);position:sticky;top:0;z-index:50;box-shadow:0 1px 0 rgba(255,255,255,.06)}
.header .wrap{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;color:#fff}
.brand .mark{height:60px;width:24px;flex-shrink:0}
.brand-text b{display:block;font-family:'Manrope',sans-serif;font-weight:800;font-size:1.08rem;color:#fff;line-height:1.25}
.brand-text small{display:block;font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--c-acc);transition:color .8s ease}
/* Rotating logo colours (set by logo.js) */
:root{--c-end:#FFFFFF;--c-mid:#3EC5F2;--c-loop:#3EC5F2;--c-acc:#3EC5F2}
.mark .m-end{fill:var(--c-end)}.mark .m-mid{fill:var(--c-mid)}
.mark .m-loop{fill:none;stroke:var(--c-loop);stroke-width:5;stroke-linecap:round}
.mark rect,.mark path{transition:fill .8s ease,stroke .8s ease}
.lockup{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.lockup .mark{height:74px;width:30px}
.lk-pop{font-family:'Manrope',sans-serif;font-weight:800;font-size:2.5rem;line-height:.9;letter-spacing:-1px;color:#fff}
.lk-fender{font-family:'Manrope',sans-serif;font-weight:800;font-size:.78rem;letter-spacing:.42em;color:var(--c-acc);transition:color .8s ease;margin-top:4px}
.nav{display:flex;align-items:center;gap:28px}
.nav a.link{color:#cfdcef;text-decoration:none;font-weight:500;font-size:.93rem}
.nav a.link:hover{color:#fff}
.nav .btn{padding:10px 18px;font-size:.92rem}

/* Hero */
.hero{background:linear-gradient(160deg,var(--navy) 0%,var(--deep) 100%);color:#fff;padding:84px 0 92px;overflow:hidden}
.hero .grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.hero .eyebrow{color:var(--sky)}
.hero h1{font-size:3.3rem;font-weight:800;margin-bottom:1.2rem}
.hero h1 em{font-style:normal;color:var(--sky)}
.hero p.lead{font-size:1.15rem;color:#c3d3ea;max-width:520px;margin-bottom:2rem}
.hero .actions{display:flex;flex-wrap:wrap;gap:14px}
.hero .facts{display:flex;gap:36px;margin-top:2.6rem;padding-top:1.8rem;border-top:1px solid rgba(255,255,255,.12)}
.hero .facts b{display:block;font-family:'Manrope',sans-serif;font-size:1.5rem;color:#fff}
.hero .facts span{font-size:.82rem;color:#9fb6d6}
.hero-photo{border-radius:18px;overflow:hidden;box-shadow:0 30px 60px -20px rgba(0,0,0,.55);aspect-ratio:4/5;width:100%;max-width:440px;justify-self:center;background:var(--deep)}
.hero-photo img,.hero-photo video{width:100%;height:100%;object-fit:cover;display:block}
.hero .intl{display:flex;align-items:center;gap:10px;margin-top:1.4rem;font-size:.95rem;color:#dbe8f8;font-weight:500}
.hero .intl svg{width:20px;height:20px;color:var(--sky);flex-shrink:0}

/* Sections */
section{padding:96px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 3.2rem}
.section-head h2{font-size:2.4rem;font-weight:800;margin-bottom:.7rem}
.section-head p{color:var(--muted);font-size:1.06rem}
.alt{background:var(--mist)}

/* Shop */
.shop-card{display:grid;grid-template-columns:1fr 1fr;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow);max-width:980px;margin:0 auto}
.photo-slot{background:linear-gradient(150deg,#eef3f9,#dfe8f3);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;min-height:380px;padding:40px}
.photo-slot img{width:100%;height:100%;object-fit:contain}
.swatches{display:flex;gap:14px}
.swatches i{width:46px;height:46px;border-radius:50%;box-shadow:0 4px 12px rgba(8,29,66,.18),inset 0 0 0 3px #fff}
.sw-black{background:#1b1d22}.sw-white{background:#f7f8fa}
.sw-zb{background:linear-gradient(90deg,#1b1d22 0 33%,#f7f8fa 33% 67%,#1b1d22 67%)}
.sw-zw{background:linear-gradient(90deg,#f7f8fa 0 33%,#1b1d22 33% 67%,#f7f8fa 67%)}
.photo-slot .label{font-size:.82rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.shop-info{padding:44px 44px 40px;display:flex;flex-direction:column;justify-content:center}
.shop-info h3{font-size:1.8rem;font-weight:800;margin-bottom:.4rem}
.price{font-family:'Manrope',sans-serif;font-size:2rem;font-weight:800;color:var(--blue);margin:.4rem 0 .2rem}
.price small{font-size:.95rem;color:var(--muted);font-weight:600}
.sale-tag{display:inline-block;align-self:flex-start;background:#fff4e0;color:#9a5b00;font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:5px 10px;border-radius:6px;margin-bottom:1rem}
.shop-info p{color:var(--muted);margin-bottom:1.2rem}
.ticks{list-style:none;margin-bottom:1.8rem}
.ticks li{display:flex;gap:10px;align-items:flex-start;padding:5px 0;font-size:.95rem}
.ticks svg{flex-shrink:0;width:18px;height:18px;margin-top:3px;color:var(--blue)}
.shop-info .row{display:flex;flex-wrap:wrap;gap:12px}
.btn-outline{background:#fff;color:var(--navy);border:1.5px solid var(--line)}
.btn-outline:hover{background:var(--mist)}

/* Why */
.why .grid{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:start}
.why h2{font-size:2.4rem;font-weight:800;margin-bottom:1rem}
.why .intro p{color:var(--muted);font-size:1.06rem}
.feature-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.feature-list li{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 18px 16px}
.feature-list b{display:block;font-family:'Manrope',sans-serif;font-size:1rem;margin-bottom:2px}
.feature-list span{color:var(--muted);font-size:.9rem}

/* Difference */
.diff{background:var(--deep);color:#fff}
.diff .section-head p{color:#9fb6d6}
.diff-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.diff-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);border-radius:var(--radius);padding:34px 30px}
.icon{width:52px;height:52px;border-radius:12px;background:rgba(72,189,239,.12);color:var(--sky);display:flex;align-items:center;justify-content:center;margin-bottom:1.3rem}
.icon svg{width:26px;height:26px}
.diff-card h3{font-size:1.2rem;margin-bottom:.5rem}
.diff-card p{color:#aec1dc;font-size:.95rem}

/* Gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery figure{border-radius:12px;overflow:hidden;aspect-ratio:4/3;background:var(--mist)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.gallery figure:hover img{transform:scale(1.04)}

/* CTA */
.cta{background:linear-gradient(135deg,var(--blue) 0%,var(--navy) 100%);color:#fff;text-align:center;padding:88px 0}
.cta h2{font-size:2.4rem;font-weight:800;margin-bottom:.8rem}
.cta p{font-size:1.1rem;color:#d6e4f6;margin-bottom:2rem}

/* Footer */
.footer{background:var(--deep);color:#9fb6d6;padding:56px 0 28px;font-size:.92rem}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer h4{color:#fff;font-family:'Manrope',sans-serif;font-size:.95rem;margin-bottom:12px}
.footer ul{list-style:none}
.footer li{padding:3px 0}
.footer a{color:#cfdcef;text-decoration:none}
.footer a:hover{color:#fff}
.footer .legal{padding-top:22px;font-size:.82rem;text-align:center}

/* Product page */
.crumb{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-weight:600;text-decoration:none;margin-bottom:28px}
.crumb:hover{text-decoration:underline}
.product{padding:56px 0 96px}
.product .grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.product .photo-slot{border-radius:20px;border:1px solid var(--line);min-height:460px;position:sticky;top:110px}
.product h1{font-size:2.6rem;font-weight:800;margin-bottom:.4rem}
.product .desc{color:var(--muted);font-size:1.06rem;margin:1rem 0 1.6rem}
.specs{margin-top:2.4rem}
.specs h2{font-size:1.25rem;margin-bottom:.8rem}
.specs table{width:100%;border-collapse:collapse;font-size:.95rem}
.specs th,.specs td{text-align:left;padding:12px 0;border-bottom:1px solid var(--line);vertical-align:top}
.specs th{width:44%;font-weight:600;color:var(--ink)}
.specs td{color:var(--muted)}
.assure{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:1.6rem}
.assure div{display:flex;gap:10px;align-items:center;background:var(--mist);border-radius:10px;padding:12px 14px;font-size:.88rem;font-weight:600}
.assure svg{width:20px;height:20px;color:var(--blue);flex-shrink:0}

@media(max-width:900px){
  .hero .grid,.why .grid,.product .grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:2.4rem}
  .shop-card{grid-template-columns:1fr}
  .photo-slot{min-height:280px}
  .product .photo-slot{position:static;min-height:320px}
  .diff-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr 1fr}
  .footer .cols{grid-template-columns:1fr}
  .nav a.link{display:none}
}
@media(max-width:560px){
  section{padding:68px 0}
  .wrap{padding:0 16px}
  .section-head h2,.why h2,.cta h2{font-size:1.9rem}
  .hero{padding:56px 0 64px}
  .hero h1{font-size:2.05rem}
  .hero .facts{gap:22px}
  .feature-list{grid-template-columns:1fr}
  .shop-info{padding:30px 22px}
  .brand-text b{font-size:.9rem;max-width:120px}
  .brand-text small{display:none}
  .brand .mark{height:44px;width:18px}
  .product h1{font-size:2rem}
  .assure{grid-template-columns:1fr}
  .promo .dot,.promo .opt{display:none}
}

/* Animated fender display (fenders.js) */
.fender-stage{display:flex;align-items:center;justify-content:center;gap:clamp(8px,3vw,22px);width:100%;height:280px}
.fender{width:clamp(52px,14vw,82px)}
.fender svg{width:100%;height:auto;display:block;overflow:visible}
.fender .f-loop{fill:none;stroke:#1b1d22;stroke-width:5;stroke-linecap:round}
.fender .f-base{fill:var(--f-base,#141518);stroke:var(--f-edge,#141518);stroke-width:1.5}
.fender .f-band{fill:var(--f-band,#1583CC)}
.fender .f-base,.fender .f-band{transition:fill .35s ease,stroke .35s ease}
.fender .f-top{animation:popTop 3s infinite}
.fender .f-bot{animation:popBot 3s infinite}
@keyframes popTop{
  0%,30%{transform:translateY(0);animation-timing-function:cubic-bezier(.5,0,.75,0)}
  45%,80%{transform:translateY(78px);animation-timing-function:cubic-bezier(.34,1.56,.64,1)}
  100%{transform:translateY(0)}
}
@keyframes popBot{
  0%,30%{transform:translateY(0);animation-timing-function:cubic-bezier(.5,0,.75,0)}
  45%,80%{transform:translateY(-78px);animation-timing-function:cubic-bezier(.34,1.56,.64,1)}
  100%{transform:translateY(0)}
}
@media (prefers-reduced-motion: reduce){.fender .f-top,.fender .f-bot{animation:none}}

/* ---- SEO content sections ---- */
.narrow{max-width:820px}
.footer .f-head{color:#fff;font-family:'Manrope',sans-serif;font-size:.95rem;margin-bottom:12px;letter-spacing:0}
.seo-copy .grid2{display:grid;grid-template-columns:1.25fr 1fr;gap:56px;align-items:start}
.seo-copy h2{font-size:2.2rem;font-weight:800;margin-bottom:1rem}
.seo-copy p{color:var(--muted);margin-bottom:1rem;font-size:1.02rem}
.seo-copy a,.article a:not(.btn),.more a,.ship-note a{color:var(--blue);font-weight:600}
.ship-title{font-size:1.3rem;margin:6px 0 14px}
.ship-list{list-style:none;display:grid;gap:10px}
.ship-list li{background:var(--mist);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.ship-list b{display:block;font-family:'Manrope',sans-serif}
.ship-list span{color:var(--muted);font-size:.92rem}
.ship-note{margin-top:14px;font-size:.92rem;color:var(--muted)}
.faq{display:grid;gap:10px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 20px}
.faq summary{cursor:pointer;list-style:none;padding:18px 28px 18px 0;font-family:'Manrope',sans-serif;font-weight:700;font-size:1.05rem;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:14px;font-size:1.5rem;color:var(--blue);font-weight:500}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);padding-bottom:18px}
.crumbs{font-size:.9rem;color:var(--muted);margin-bottom:28px}
.crumbs a{color:var(--blue);font-weight:600;text-decoration:none}
.crumbs a:hover{text-decoration:underline}
.more{margin-top:2.4rem}
.more h2{font-size:1.25rem;margin-bottom:.6rem}
.more p{color:var(--muted)}
.article{padding:56px 0 96px}
.article h1{font-size:2.6rem;font-weight:800;margin-bottom:1rem}
.article h2{font-size:1.55rem;margin:2.4rem 0 .8rem}
.article p,.article li{color:#3d4757;font-size:1.05rem;line-height:1.75}
.article p{margin-bottom:1rem}
.article ul{padding-left:1.2rem;margin-bottom:1rem}
.article li{margin-bottom:.5rem}
.article li b{color:var(--ink)}
.lead-dark{font-size:1.15rem!important;color:var(--muted)!important}
.notfound{padding:110px 0}
.notfound h1{font-size:2.6rem;margin-bottom:1rem}
.notfound .row{display:flex;flex-wrap:wrap;gap:12px;margin-top:1.4rem}
@media(max-width:900px){.seo-copy .grid2{grid-template-columns:1fr;gap:36px}}
@media(max-width:560px){.article h1,.notfound h1{font-size:1.9rem}.seo-copy h2{font-size:1.8rem}}
.ship-table{width:100%;border-collapse:collapse;margin:.4rem 0 1.4rem;font-size:.98rem}
.ship-table th,.ship-table td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line)}
.ship-table th{background:var(--mist);font-family:'Manrope',sans-serif}
.ship-table td{color:#3d4757}
.assure a{color:var(--blue)}
@media(max-width:560px){.ship-table{font-size:.85rem}.ship-table th,.ship-table td{padding:10px 6px}}
.buy-note{font-size:.88rem;color:var(--muted);margin-top:12px}
.buy-note a,.notfound a:not(.btn){color:var(--blue);font-weight:600}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.cta .btn-ghost{border-color:rgba(255,255,255,.6)}
.buy-row{display:flex;flex-wrap:wrap;gap:12px}