:root{
    --blue:#004fb8;
    --blue-2:#0067ee;
    --black:#080808;
    --white:#ffffff;
    --muted:#6f7480;
    --soft:#f3f6fb;
    --line:#e7eaf0;
    --danger:#d82929;
    --success:#15925c;
    --warning:#b77600;
    --radius:22px;
    --shadow:0 18px 45px rgba(0,0,0,.11);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:var(--soft);
    color:#101828;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin-inline:auto}
.site-header{
    position:sticky;top:0;z-index:40;
    background:rgba(255,255,255,.88);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(16px);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand img{width:58px;height:58px;border-radius:16px;object-fit:cover;background:#000}
.brand strong{display:block;font-size:1rem;line-height:1.1}
.brand small{display:block;color:var(--muted);font-size:.78rem;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:8px}
.main-nav a{padding:10px 14px;border-radius:999px;font-weight:700;color:#202736}
.main-nav a:hover{background:#edf4ff;color:var(--blue)}
.nav-toggle{display:none;border:0;background:var(--black);color:white;border-radius:12px;padding:10px 14px;font-size:1.2rem}
.hero{background:linear-gradient(135deg,var(--black),#151515 48%,var(--blue));color:white;padding:56px 0 46px;overflow:hidden;position:relative}
.hero::after{content:"";position:absolute;right:-130px;top:-90px;width:360px;height:360px;border-radius:50%;background:rgba(255,255,255,.11)}
.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:28px;align-items:center;position:relative;z-index:1}
.kicker{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.13);font-weight:800;font-size:.82rem;letter-spacing:.02em}
.hero h1{font-size:clamp(2.2rem,5vw,4.7rem);line-height:.95;margin:18px 0 16px;letter-spacing:-.06em}
.hero p{color:#dbe7ff;font-size:1.08rem;max-width:650px;line-height:1.65}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:999px;padding:12px 18px;font-weight:900;cursor:pointer;transition:.2s ease;font-size:.96rem}
.btn-primary{background:var(--blue-2);color:white;box-shadow:0 12px 28px rgba(0,103,238,.28)}
.btn-primary:hover{transform:translateY(-1px);background:#005adb}
.btn-dark{background:#111;color:#fff}
.btn-light{background:white;color:#111}
.btn-outline{background:transparent;border:1px solid var(--line);color:#1f2937}
.btn-danger{background:var(--danger);color:white}
.hero-card{background:white;color:#101828;border-radius:32px;padding:16px;box-shadow:var(--shadow);transform:rotate(1.5deg)}
.hero-card img{border-radius:24px;aspect-ratio:1/1;object-fit:cover;background:#000}
.hero-card div{padding:15px 10px 6px}
.hero-card strong{font-size:1.15rem}
.hero-card p{color:var(--muted);font-size:.92rem;margin:6px 0 0}
.section{padding:38px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:22px}
.section-head h2{font-size:clamp(1.65rem,3vw,2.3rem);letter-spacing:-.04em;margin:0}
.section-head p{color:var(--muted);margin:8px 0 0;line-height:1.5}
.filters{background:white;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 12px 34px rgba(17,24,39,.06);padding:16px;margin-top:-34px;position:relative;z-index:3}
.filter-form{display:grid;grid-template-columns:1.4fr repeat(4,1fr) auto;gap:10px;align-items:end}
.input, .select, textarea{
    width:100%;border:1px solid var(--line);border-radius:14px;padding:12px 13px;background:#fff;color:#111;font:inherit;outline:none;
}
.input:focus,.select:focus,textarea:focus{border-color:var(--blue-2);box-shadow:0 0 0 4px rgba(0,103,238,.11)}
.label{display:block;font-size:.78rem;font-weight:900;color:#445062;margin:0 0 6px}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.product-card{background:white;border:1px solid var(--line);border-radius:26px;overflow:hidden;box-shadow:0 12px 30px rgba(17,24,39,.06);display:flex;flex-direction:column;transition:.2s ease}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.product-media{position:relative;background:#111;aspect-ratio:1/1;overflow:hidden}
.product-media img{width:100%;height:100%;object-fit:cover;transition:.3s ease}
.product-card:hover .product-media img{transform:scale(1.04)}
.badge{display:inline-flex;align-items:center;border-radius:999px;padding:6px 10px;font-size:.73rem;font-weight:900;background:#eef5ff;color:#004fb8}
.badge-status{position:absolute;left:12px;top:12px;background:#fff;color:#111;box-shadow:0 8px 18px rgba(0,0,0,.14)}
.product-info{padding:16px;display:flex;flex-direction:column;gap:10px;flex:1}
.product-info h3{margin:0;font-size:1.02rem;line-height:1.2}
.meta{display:flex;gap:8px;flex-wrap:wrap;color:#4b5563;font-size:.84rem}
.price{font-size:1.08rem;font-weight:950;color:#0b1320}
.product-actions{margin-top:auto;display:grid;grid-template-columns:1fr;gap:8px}
.empty-state{background:white;border:1px dashed #c5cede;border-radius:26px;padding:42px;text-align:center;color:var(--muted)}
.detail-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:28px;padding:38px 0}
.detail-image{background:#111;border-radius:30px;overflow:hidden;box-shadow:var(--shadow)}
.detail-image img{width:100%;aspect-ratio:1/1;object-fit:cover}
.detail-panel{background:white;border:1px solid var(--line);border-radius:30px;padding:28px;box-shadow:0 12px 34px rgba(17,24,39,.06)}
.detail-panel h1{font-size:clamp(2rem,4vw,3.5rem);line-height:.95;margin:12px 0;letter-spacing:-.06em}
.detail-description{line-height:1.7;color:#344054;white-space:pre-line}
.specs{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:22px 0}
.spec{background:#f8fafc;border:1px solid var(--line);border-radius:18px;padding:13px}
.spec span{display:block;color:var(--muted);font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em}
.spec strong{display:block;margin-top:4px}
.admin-shell{min-height:100vh;background:#f7f8fb;padding:28px 0}
.admin-card{background:white;border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);padding:24px}
.login-card{width:min(430px,92%);margin:8vh auto}
.admin-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}
.admin-top h1{margin:0;letter-spacing:-.04em}
.alert{padding:12px 14px;border-radius:14px;margin-bottom:14px;font-weight:700}
.alert-error{background:#fff1f1;color:#aa1818;border:1px solid #ffd0d0}
.alert-success{background:#ecfdf3;color:#0b7648;border:1px solid #b8f2ce}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px}
table{width:100%;border-collapse:collapse;background:white;min-width:900px}
th,td{padding:13px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
th{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:#5f6b7a;background:#f8fafc}
td img{width:58px;height:58px;border-radius:14px;object-fit:cover;background:#111}
.actions{display:flex;gap:8px;flex-wrap:wrap}
.actions .btn{padding:9px 11px;font-size:.82rem}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.form-full{grid-column:1/-1}
.admin-nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.admin-nav a{padding:10px 13px;border-radius:999px;background:#eef3fb;font-weight:900;color:#1f2937}
.admin-nav a:hover{background:#dceaff;color:var(--blue)}
.preview-img{max-width:180px;border-radius:18px;background:#111;margin-top:10px}
@media (max-width:960px){
    .hero-grid,.detail-grid{grid-template-columns:1fr}
    .product-grid{grid-template-columns:repeat(2,1fr)}
    .filter-form{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
    .main-nav{display:none;position:absolute;left:4%;right:4%;top:82px;background:white;border:1px solid var(--line);border-radius:22px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
    .main-nav.is-open{display:flex}
    .main-nav a{display:block}
    .nav-toggle{display:block}
    .hero{padding:38px 0 54px}
    .filters{margin-top:-24px}
    .filter-form{grid-template-columns:1fr}
    .product-grid{grid-template-columns:1fr}
    .section-head{display:block}
    .specs,.form-grid{grid-template-columns:1fr}
    .brand small{display:none}
}

/* Botón flotante de WhatsApp */
.whatsapp-fab{
    position:fixed;
    right:22px;
    bottom:22px;
    z-index:80;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:13px 17px;
    border-radius:999px;
    background:#25d366;
    color:#fff;
    font-weight:950;
    box-shadow:0 18px 35px rgba(37,211,102,.35);
    border:2px solid rgba(255,255,255,.85);
    transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.whatsapp-fab:hover{
    transform:translateY(-3px) scale(1.02);
    background:#1ebe5d;
    box-shadow:0 22px 42px rgba(37,211,102,.42);
}
.whatsapp-fab svg{
    width:22px;
    height:22px;
    flex:0 0 22px;
}

@media (max-width:720px){
    body{padding-bottom:72px}
    .whatsapp-fab{
        right:14px;
        bottom:14px;
        width:58px;
        height:58px;
        padding:0;
        border-radius:50%;
    }
    .whatsapp-fab span{
        position:absolute;
        width:1px;
        height:1px;
        overflow:hidden;
        clip:rect(0 0 0 0);
        white-space:nowrap;
    }
    .whatsapp-fab svg{
        width:29px;
        height:29px;
        flex-basis:29px;
    }
}

/* Galería de producto y carga de hasta 4 fotos */
.badge-photo-count{
    position:absolute;
    right:12px;
    top:12px;
    background:rgba(255,255,255,.92);
    color:#111;
    box-shadow:0 8px 18px rgba(0,0,0,.14);
}
.detail-gallery{display:grid;gap:14px;align-content:start}
.gallery-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.gallery-thumb{
    border:2px solid transparent;
    background:#111;
    border-radius:18px;
    overflow:hidden;
    padding:0;
    cursor:pointer;
    box-shadow:0 10px 24px rgba(17,24,39,.08);
    transition:.2s ease;
}
.gallery-thumb:hover,.gallery-thumb.is-active{border-color:var(--blue-2);transform:translateY(-2px)}
.gallery-thumb img{width:100%;aspect-ratio:1/1;object-fit:cover}
.form-help{margin:0 0 12px;color:#6f7480;font-size:.9rem;line-height:1.45}
.image-upload-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.image-upload-box{border:1px solid var(--line);border-radius:20px;background:#f8fafc;padding:12px;display:grid;gap:10px;align-content:start}
.image-upload-box strong{font-size:.88rem}
.image-upload-box .preview-img{width:100%;max-width:none;aspect-ratio:1/1;object-fit:cover;margin:0;border-radius:16px;border:1px solid var(--line)}
.image-upload-box .preview-img.is-empty{opacity:.55;filter:grayscale(1)}
.remove-image-check{display:flex;align-items:center;gap:8px;font-size:.85rem;color:#5f6b7a;font-weight:700}
.remove-image-check input{width:16px;height:16px}

@media (max-width:960px){
    .image-upload-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
    .gallery-thumbs{grid-template-columns:repeat(4,1fr)}
    .image-upload-grid{grid-template-columns:1fr}
}