:root{--bg:#0f0f0f;--bg2:#1a1a1a;--border:#2a2a2a;--border2:#3a3a3a;--text:#f1f5f9;--text2:#94a3b8;--muted:#64748b;--green:#22c55e;--green-dark:#16a34a;--green-light:#86efac;--green-bg:rgba(34,197,94,0.10);--green-border:rgba(34,197,94,0.25);--surface:#1e1e1e;--surface2:#252525;--cheap:#22c55e;--mid:#eab308;--exp:#ef4444;--font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--r-md:0.5rem;--r-lg:0.75rem;--r-xl:1rem;--r-full:9999px;--shadow:0 8px 24px rgba(0,0,0,0.6);--glow:0 0 20px rgba(34,197,94,0.15);--t:200ms ease}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);font-size:1rem;line-height:1.6;background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased}
main{flex:1}
a{color:var(--green);text-decoration:none}
a:hover{color:var(--green-light)}
button{cursor:pointer;font-family:var(--font)}
select,input{font-family:var(--font)}
.container{width:100%;max-width:1200px;margin-inline:auto;padding-inline:1rem}
@media(min-width:640px){.container{padding-inline:1.5rem}}
@media(min-width:1024px){.container{padding-inline:2rem}}
.site-header{background:var(--bg2);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;backdrop-filter:blur(12px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding-block:1rem}
.brand-title{font-size:1.5rem;font-weight:800;letter-spacing:-0.025em;background:linear-gradient(135deg,#fff 30%,var(--green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.brand-subtitle{font-size:0.875rem;color:var(--text2);margin-top:0.25rem}
.section-filters{background:var(--bg2);border-bottom:1px solid var(--border);padding-block:1rem}
.filters-bar{display:flex;align-items:flex-end;gap:0.75rem;flex-wrap:wrap}
.filter-group{display:flex;flex-direction:column;gap:0.25rem;flex:1;min-width:160px;max-width:280px}
.filter-label{font-size:0.75rem;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:0.05em}
.select-wrapper{position:relative;display:flex;align-items:center}
.select-wrapper select{appearance:none;-webkit-appearance:none;width:100%;padding:0.5rem 2rem 0.5rem 0.75rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);color:var(--text);font-size:0.875rem;font-weight:500;cursor:pointer;transition:border-color var(--t)}
.select-wrapper select:hover{border-color:var(--border2)}
.select-wrapper select:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(34,197,94,0.15)}
.select-wrapper select:disabled{opacity:0.45;cursor:not-allowed}
.select-wrapper select option{background:var(--surface);color:var(--text)}
.select-arrow{position:absolute;right:0.75rem;pointer-events:none;color:var(--muted);font-size:0.75rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.5rem 1rem;font-size:0.875rem;font-weight:600;border-radius:var(--r-md);border:1px solid transparent;transition:background var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);white-space:nowrap;cursor:pointer;line-height:1.5}
.btn:active{transform:scale(0.97)}
.btn-primary{background:var(--green);color:#000;border-color:var(--green)}
.btn-primary:hover{background:var(--green-dark);border-color:var(--green-dark);box-shadow:var(--glow);color:#000}
.btn-location{background:transparent;color:var(--green);border-color:var(--green-border);align-self:flex-end}
.btn-location:hover{background:var(--green-bg);border-color:var(--green)}
.btn-location.location-active{background:var(--green-bg);border-color:var(--green)}
.pin-icon{display:inline-block;transition:transform var(--t)}
.btn-location:hover .pin-icon{animation:pin-bounce 0.5s ease infinite alternate}
@keyframes pin-bounce{from{transform:translateY(0)}to{transform:translateY(-3px)}}
.section-search{padding-block:2.5rem 2rem;background:linear-gradient(180deg,var(--bg2) 0%,var(--bg) 100%)}
.search-heading{font-size:1.25rem;font-weight:700;text-align:center;margin-bottom:1.5rem}
.search-bar{display:flex;gap:0.75rem;align-items:stretch;max-width:760px;margin-inline:auto}
.search-input-wrapper{flex:1;position:relative;display:flex;align-items:center}
.search-icon{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none;z-index:1}
.search-input-wrapper:focus-within .search-icon{color:var(--green)}
#inputBusqueda{width:100%;padding:1rem 1rem 1rem calc(1rem + 28px);background:var(--surface);border:1.5px solid var(--border);border-radius:var(--r-lg);color:var(--text);font-size:1rem;transition:border-color var(--t),box-shadow var(--t);appearance:none}
#inputBusqueda::placeholder{color:var(--muted)}
#inputBusqueda:hover{border-color:var(--border2)}
#inputBusqueda:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(34,197,94,0.15)}
#inputBusqueda::-webkit-search-cancel-button{display:none}
.btn-search{padding:1rem 1.5rem;font-size:1rem;border-radius:var(--r-lg);flex-shrink:0}
.quick-searches{display:flex;align-items:center;gap:0.75rem;flex-wrap:wrap;max-width:760px;margin-inline:auto;margin-top:1rem}
.quick-label{font-size:0.75rem;color:var(--muted);font-weight:500;white-space:nowrap}
.chips-list{display:flex;flex-wrap:wrap;gap:0.5rem}
.chip{padding:0.25rem 0.75rem;border-radius:var(--r-full);border:1px solid var(--border);background:var(--surface);color:var(--text2);font-size:0.875rem;font-weight:500;transition:background var(--t),border-color var(--t),color var(--t),transform var(--t)}
.chip:hover{border-color:var(--green-border);background:var(--green-bg);color:var(--green-light);transform:translateY(-1px)}
.section-results{padding-block:2rem 4rem;min-height:400px}
.results-counter{font-size:0.875rem;color:var(--text2);margin-bottom:1.5rem;min-height:1.4em}
.welcome-state,.loading-state,.empty-state{text-align:center;padding-block:3rem;max-width:560px;margin-inline:auto}
.welcome-icon{font-size:4rem;line-height:1;margin-bottom:1rem;animation:float 3s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.welcome-state h2{font-size:2rem;font-weight:800;margin-bottom:0.75rem;letter-spacing:-0.025em}
.welcome-state p{color:var(--text2);margin-bottom:2rem;line-height:1.7}
.welcome-stats{display:flex;align-items:center;justify-content:center;gap:1.5rem;flex-wrap:wrap;padding:1.5rem;background:var(--bg2);border:1px solid var(--border);border-radius:var(--r-xl)}
.stat-item{display:flex;flex-direction:column;align-items:center;gap:0.25rem}
.stat-number{font-size:1.25rem;font-weight:800;color:var(--green)}
.stat-label{font-size:0.75rem;color:var(--muted);text-transform:uppercase;letter-spacing:0.05em}
.stat-divider{width:1px;height:40px;background:var(--border)}
.spinner{display:inline-flex;align-items:center;justify-content:center;margin-bottom:1rem}
.spinner-ring{width:48px;height:48px;border:3px solid var(--border);border-top-color:var(--green);border-radius:50%;animation:spin 0.8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-text{color:var(--text2);font-size:0.875rem}
.mock-warning{padding:0.75rem 1rem;background:rgba(234,179,8,0.1);border:1px solid rgba(234,179,8,0.25);border-radius:var(--r-lg);color:#eab308;font-size:0.875rem;margin-bottom:1.5rem}
.product-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--r-xl);overflow:hidden;transition:transform var(--t),box-shadow var(--t),border-color var(--t);margin-bottom:1rem}
.product-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--green-border)}
.product-header{display:flex;align-items:flex-start;gap:1rem;padding:1rem 1rem 0}
.product-icon{font-size:2.5rem;flex-shrink:0;width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:var(--surface);border-radius:var(--r-lg)}
.product-info{flex:1;min-width:0}
.product-name{font-size:0.9375rem;font-weight:700;color:var(--text);line-height:1.3;margin-bottom:0.25rem}
.product-meta{display:flex;gap:0.5rem;flex-wrap:wrap}
.product-brand{font-size:0.75rem;color:var(--muted);font-weight:500}
.product-size{font-size:0.75rem;color:var(--muted);background:var(--surface2);padding:1px 0.5rem;border-radius:var(--r-full)}
.cheapest-highlight{text-align:right;flex-shrink:0}
.cheapest-price{font-size:1.375rem;font-weight:800;color:var(--green);letter-spacing:-0.02em}
.cheapest-store{font-size:0.75rem;color:var(--text2);font-weight:600}
.saving-badge{display:inline-block;margin-top:0.25rem;font-size:0.7rem;font-weight:700;color:#000;background:var(--green);padding:1px 0.5rem;border-radius:var(--r-full)}
.price-list{margin:0.75rem 1rem 1rem;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border)}
.price-list-header{display:grid;grid-template-columns:1fr 2fr auto;gap:0.5rem;padding:0.5rem 0.75rem;background:var(--surface);font-size:0.7rem;font-weight:700;text-transform:uppercase;letter-spacing:0.05em;color:var(--muted)}
.price-row{display:grid;grid-template-columns:1fr 2fr auto;gap:0.5rem;align-items:center;padding:0.5rem 0.75rem;border-top:1px solid var(--border);font-size:0.875rem;transition:background var(--t)}
.price-row:hover{background:var(--surface2)}
.price-row.cheapest-row{background:rgba(34,197,94,0.07)}
.price-row.expensive-row{opacity:0.7}
.store-badge{display:inline-flex;align-items:center;padding:2px 0.5rem;border-radius:var(--r-full);font-size:0.75rem;font-weight:700;white-space:nowrap}
.badge-cheapest{background:rgba(34,197,94,0.15);color:var(--cheap);border:1px solid rgba(34,197,94,0.3)}
.badge-mid{background:rgba(234,179,8,0.12);color:var(--mid);border:1px solid rgba(234,179,8,0.25)}
.badge-expensive{background:rgba(239,68,68,0.12);color:var(--exp);border:1px solid rgba(239,68,68,0.2)}
.store-address{font-size:0.75rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.price-value{font-weight:700;white-space:nowrap;text-align:right}
.price-cheapest{color:var(--green)}
.site-footer{background:var(--bg2);border-top:1px solid var(--border);padding-block:2rem;margin-top:auto}
.footer-inner{display:flex;flex-direction:column;gap:1rem;align-items:center;text-align:center}
@media(min-width:768px){.footer-inner{flex-direction:row;justify-content:space-between;text-align:left;align-items:flex-start}}
.footer-logo{font-size:1.125rem;font-weight:800;color:var(--text)}
.footer-tagline{font-size:0.875rem;color:var(--muted);margin-top:0.25rem}
.footer-copy{font-size:0.75rem;color:var(--muted)}
.footer-link{color:var(--text2)}
.footer-link:hover{color:var(--green)}
@media(max-width:639px){.brand-subtitle{display:none}.search-bar{flex-direction:column}.btn-search{width:100%}.filters-bar{flex-direction:column;align-items:stretch}.filter-group{max-width:100%}.btn-location{width:100%;justify-content:center}.welcome-state h2{font-size:1.5rem}.stat-divider{display:none}.price-list-header{display:none}.price-row{grid-template-columns:1fr auto}.store-address{display:none}}
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:var(--r-full)}
::-webkit-scrollbar-thumb:hover{background:var(--border2)}