:root{
  --navy:#0f2942; --navy-deep:#0a1c2e; --cyan:#00b8d9; --cyan-soft:#5fd8ec;
  --white:#ffffff; --bg:#f3f7f9; --text:#16232d; --text-dim:#5c6b76; --border:#dce6ea;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Cairo',Tahoma,sans-serif;line-height:1.6}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
h1,h2,h3{font-family:'Rubik',sans-serif;margin:0}
input,select{font-family:inherit}

.back-pill{position:fixed;inset-block-start:14px;inset-inline-start:14px;z-index:260;background:rgba(15,41,66,.92);color:var(--cyan-soft);padding:8px 16px;border-radius:999px;font-size:12.5px;font-weight:700}

/* ---- Split shell (archetype C) ---- */
.split-shell{display:flex;min-height:100vh}
.split-fixed{
  position:fixed;inset-block:0;inset-inline-start:0;width:340px;background:var(--navy-deep);color:#dce9ef;
  display:flex;flex-direction:column;padding:80px 22px 22px;overflow-y:auto;z-index:60;
}
.split-fixed__brand{display:flex;align-items:center;gap:10px;margin-block-end:22px}
.split-fixed__mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--cyan),#0090ab);display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--navy-deep);font-family:'Rubik',sans-serif}
.split-fixed__name{font-family:'Rubik',sans-serif;font-weight:700;font-size:16px;color:#fff}
.split-fixed h3{font-size:13px;color:var(--cyan-soft);text-transform:uppercase;letter-spacing:.5px;margin-block-end:10px;margin-block-start:22px}
.filter-group{display:flex;flex-direction:column;gap:8px}
.filter-chip{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:#dce9ef;padding:9px 14px;border-radius:8px;font-size:13.5px;text-align:start;font-weight:600}
.filter-chip.is-active{background:var(--cyan);color:var(--navy-deep);border-color:var(--cyan)}
.filter-select{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:#dce9ef;padding:9px 12px;border-radius:8px;font-size:13.5px}
.filter-select option{color:#000}

.compare-tray{margin-block-start:24px;background:rgba(255,255,255,.05);border:1px dashed rgba(255,255,255,.2);border-radius:12px;padding:14px}
.compare-tray__empty{font-size:12.5px;color:#8ba3af}
.compare-tray__item{display:flex;align-items:center;gap:8px;margin-block-end:8px;font-size:12.5px}
.compare-tray__item img{width:34px;height:34px;object-fit:cover;border-radius:6px}
.compare-tray__remove{color:#ff8080;font-size:11px;margin-inline-start:auto}
.btn-compare-now{width:100%;background:var(--cyan);color:var(--navy-deep);font-weight:700;padding:10px;border-radius:8px;font-size:13.5px;margin-block-start:8px}
.btn-compare-now:disabled{opacity:.35;pointer-events:none}

.panel-toggle{display:none;position:fixed;inset-block-start:14px;inset-inline-end:14px;z-index:260;background:var(--navy);color:#fff;width:44px;height:44px;border-radius:10px;font-size:18px}
.panel-backdrop{display:none}

/* ---- Scroll content ---- */
.split-scroll{flex:1;margin-inline-start:340px;min-width:0}
.hero{background:linear-gradient(120deg,var(--navy),var(--navy-deep));color:#fff;padding:60px 32px}
.hero__inner{max-width:900px}
.hero__eyebrow{color:var(--cyan-soft);font-weight:700;font-size:13px}
.hero__title{font-size:clamp(28px,4vw,44px);margin:10px 0 14px}
.hero__lead{color:#c3d5dd;font-size:15.5px;max-width:560px}

.catalog{max-width:1200px;margin-inline:auto;padding:32px 32px 60px}
.catalog__head{display:flex;justify-content:space-between;align-items:center;margin-block-end:20px;flex-wrap:wrap;gap:10px}
.results-count{color:var(--text-dim);font-size:13.5px}
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px}
.p-card{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.p-card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(15,41,66,.1)}
.p-card__img-wrap{aspect-ratio:4/3;overflow:hidden;background:#eef3f5;cursor:pointer}
.p-card__img-wrap img{width:100%;height:100%;object-fit:cover}
.p-card__body{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1}
.p-card__brand{font-size:11px;color:var(--cyan);font-weight:700}
.p-card__name{font-size:14.5px;font-weight:700;cursor:pointer}
.p-card__price{font-family:'Rubik',sans-serif;font-weight:700;color:var(--navy);font-size:16px}
.p-card__installment{font-size:11px;color:var(--text-dim)}
.p-card__actions{display:flex;gap:6px;margin-block-start:auto;padding-block-start:8px}
.btn-mini{flex:1;padding:8px;border-radius:7px;font-size:12px;font-weight:700}
.btn-mini--add{background:var(--navy);color:#fff}
.btn-mini--compare{background:#eef3f5;color:var(--navy);border:1px solid var(--border)}
.btn-mini--compare.is-active{background:var(--cyan);color:var(--navy-deep)}
.empty-state{grid-column:1/-1;text-align:center;color:var(--text-dim);padding:50px 0}

/* ---- Footer ---- */
.site-footer{background:var(--navy-deep);color:#c3d5dd;padding:40px 32px 22px}
.footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:26px;font-size:13px;line-height:1.9}
.footer-grid h4{color:var(--cyan-soft);font-size:14px;margin-block-end:8px}
.footer-bottom{text-align:center;font-size:11.5px;color:#7a8f9a;margin-block-start:24px;padding-block-start:16px;border-block-start:1px solid rgba(255,255,255,.08)}

/* ---- Modals (product / compare / cart / checkout) ---- */
.modal-backdrop{position:fixed;inset:0;background:rgba(10,20,30,.6);z-index:300;display:none;align-items:center;justify-content:center;padding:16px}
.modal-backdrop.is-open{display:flex}
.modal{background:#fff;border-radius:16px;max-width:560px;width:100%;max-height:88vh;overflow-y:auto;padding:26px;position:relative}
.modal--wide{max-width:760px}
.modal__close{position:absolute;inset-block-start:14px;inset-inline-end:14px;width:32px;height:32px;border-radius:50%;background:#eef3f5;font-size:15px}
.modal__img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;margin-block-end:16px}
.spec-table{width:100%;border-collapse:collapse;font-size:13.5px;margin-block:14px}
.spec-table td{padding:8px 6px;border-block-end:1px solid var(--border)}
.spec-table td:first-child{color:var(--text-dim);width:40%}
.modal__price{font-family:'Rubik',sans-serif;font-weight:700;font-size:20px;color:var(--navy);margin-block-end:4px}
.modal__installment{font-size:12.5px;color:var(--text-dim);margin-block-end:16px}
.compare-table{width:100%;border-collapse:collapse;font-size:13px}
.compare-table th,.compare-table td{padding:10px;border:1px solid var(--border);text-align:center}
.compare-table th{background:#eef3f5}

/* ---- Cart drawer + FAB ---- */
.cart-fab{position:fixed;inset-block-end:24px;inset-inline-end:24px;z-index:150;width:58px;height:58px;border-radius:50%;background:var(--cyan);color:var(--navy-deep);display:flex;align-items:center;justify-content:center;font-size:22px;box-shadow:0 6px 20px rgba(0,184,217,.45);transform:scale(0);opacity:0;transition:transform .3s cubic-bezier(.34,1.56,.64,1),opacity .2s}
.cart-fab.is-visible{transform:scale(1);opacity:1}
.cart-fab.is-bumping{animation:bump .35s ease}
@keyframes bump{0%{transform:scale(1)}40%{transform:scale(1.25)}100%{transform:scale(1)}}
.cart-fab__badge{position:absolute;inset-block-start:-4px;inset-inline-end:-4px;background:var(--navy);color:#fff;font-size:11px;font-weight:700;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center}
.wa-fab{position:fixed;inset-block-end:96px;inset-inline-end:24px;z-index:150;width:50px;height:50px;border-radius:50%;background:#25D366;color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.25)}

.cart-drawer-backdrop{position:fixed;inset:0;background:rgba(10,20,30,.6);z-index:310;opacity:0;pointer-events:none;transition:opacity .25s}
.cart-drawer-backdrop.is-open{opacity:1;pointer-events:auto}
.cart-drawer{position:fixed;inset-block:0;inset-inline-start:0;width:88%;max-width:400px;background:#fff;z-index:320;transform:translateX(100%);transition:transform .3s ease;display:flex;flex-direction:column}
.cart-drawer.is-open{transform:none}
.cart-drawer__head{padding:20px;border-block-end:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.cart-drawer__items{flex:1;overflow-y:auto;padding:14px 20px}
.cart-item{display:flex;gap:10px;padding:12px 0;border-block-end:1px solid #f0f2f4}
.cart-item img{width:56px;height:56px;object-fit:cover;border-radius:8px}
.cart-item__name{font-size:13.5px;font-weight:700;margin:0 0 4px}
.cart-item__meta{font-size:12px;color:var(--text-dim)}
.cart-item__remove{color:#c0392b;font-size:11.5px;margin-block-start:4px}
.cart-drawer__foot{padding:18px 20px;border-block-start:1px solid var(--border)}
.cart-total{display:flex;justify-content:space-between;font-weight:700;margin-block-end:12px;font-size:15px}
.cart-empty{padding:50px 20px;text-align:center;color:var(--text-dim)}
.btn-block{width:100%;background:var(--navy);color:#fff;padding:14px;border-radius:10px;font-weight:700;font-size:14.5px}

.checkout-steps{display:flex;gap:6px;margin-block-end:20px}
.checkout-steps span{flex:1;height:4px;background:var(--border);border-radius:2px}
.checkout-steps span.is-done{background:var(--cyan)}
.checkout-step{display:none}
.checkout-step.is-active{display:block}
.form-field{margin-block-end:14px}
.form-field label{display:block;font-size:12.5px;font-weight:700;margin-block-end:6px;color:var(--text-dim)}
.form-field input,.form-field select{width:100%;padding:11px;border:1px solid var(--border);border-radius:8px;font-size:14px}
.pay-option{display:flex;align-items:center;gap:8px;padding:12px;border:1px solid var(--border);border-radius:8px;margin-block-end:8px;cursor:pointer}
.confirm-box{text-align:center}
.confirm-box__icon{width:60px;height:60px;border-radius:50%;background:#e4f9ec;color:#1a9e52;display:flex;align-items:center;justify-content:center;font-size:28px;margin:0 auto 16px}
.confirm-ref{font-family:'Rubik',sans-serif;font-size:20px;font-weight:700;color:var(--navy);margin-block:8px}

/* ---- Responsive ---- */
@media (max-width:900px){
  .split-fixed{transform:translateX(100%);width:86%;max-width:360px;z-index:250;transition:transform .3s ease}
  .split-fixed.is-open{transform:none}
  .split-scroll{margin-inline-start:0}
  .panel-toggle{display:flex;align-items:center;justify-content:center}
  .panel-backdrop{display:block;position:fixed;inset:0;background:rgba(10,20,30,.5);z-index:240;opacity:0;pointer-events:none;transition:opacity .25s}
  .panel-backdrop.is-open{opacity:1;pointer-events:auto}
  .hero{padding:80px 20px 40px}
  .catalog{padding:24px 18px 50px}
  .footer-grid{grid-template-columns:1fr;text-align:center}
}
@media (max-width:420px){
  .product-grid{grid-template-columns:repeat(2,1fr)}
}