:root{--bg-color:#f0f2f5;--text-color:#333;--header-bg:#007bff;--header-text:white;--card-bg:#fff;--card-shadow:rgba(0,0,0,.08);--card-hover-shadow:rgba(0,0,0,.15);--card-title-color:#007bff;--border-color:#e0e0e0;--footer-bg:#343a40;--footer-text:#e9ecef;--input-bg:white;--input-shadow:rgba(0,0,0,.1);--button-bg:#007bff;--button-text:white}body.dark-mode{--bg-color:#1a202c;--text-color:#e2e8f0;--header-bg:#2d3748;--header-text:#edf2f7;--card-bg:#2d3748;--card-shadow:rgba(0,0,0,.4);--card-hover-shadow:rgba(0,0,0,.6);--card-title-color:#63b3ed;--border-color:#4a5568;--footer-bg:#1a202c;--footer-text:#cbd5e0;--input-bg:#4a5568;--input-shadow:rgba(0,0,0,.5);--button-bg:#63b3ed;--button-text:#1a202c}body{font-family:'Poppins','Segoe UI',Tahoma,Geneva,Verdana,sans-serif;margin:0;padding:0;background-color:var(--bg-color);color:var(--text-color);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .3s ease , color .3s ease}header{background-color:var(--header-bg);color:var(--header-text);padding:20px 20px;box-shadow:0 2px 8px rgba(0,0,0,.15);position:sticky;top:0;z-index:1000;transition:background-color .3s ease , color .3s ease;display:flex;flex-direction:column;align-items:center;position:relative}header h1{margin:0;font-size:2.2em;letter-spacing:-.02em;text-shadow:1px 1px 2px rgba(0,0,0,.1)}header p{margin-top:5px;font-size:.9em;opacity:.9}.header-controls{position:absolute;top:20px;right:20px}#search-input{width:80%;max-width:400px;padding:10px 15px;border-radius:25px;border:none;background-color:var(--input-bg);box-shadow:0 2px 5px var(--input-shadow);font-size:1.1em;outline:none;color:var(--text-color);transition:all .3s ease;display:none}#search-input:focus{box-shadow:0 0 0 3px var(--card-title-color)}#dark-mode-toggle{background:var(--button-bg);border:none;color:var(--button-text);padding:10px 15px;border-radius:25px;cursor:pointer;font-size:1.2em;display:flex;align-items:center;justify-content:center;transition:background-color .3s ease , color .3s ease , transform .2s ease}#dark-mode-toggle:hover{transform:translateY(-2px);opacity:.9}.dashboard{padding:40px 20px;max-width:1200px;margin:30px auto}#dolar-cards-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:25px;justify-content:center;position:relative}#ad-banner-space{background-color:#f9f9f9;border:1px dashed #ccc;padding:0;margin:30px 0;text-align:center;border-radius:8px;font-size:1.2em;color:#666;grid-column: 1 / -1;box-shadow:0 2px 10px rgba(0,0,0,.05);transition:background-color .3s ease;display:flex;align-items:center;justify-content:center;min-height:80px;overflow:hidden}body.dark-mode #ad-banner-space{background-color:#3e4a59;border:1px dashed #777;color:#bbb;box-shadow:0 2px 10px rgba(0,0,0,.2)}.dolar-card.loading{background-color:var(--card-bg);color:var(--text-color);padding:25px;border-radius:12px;box-shadow:0 4px 15px var(--card-shadow);text-align:center;grid-column: 1 / -1;overflow:hidden;position:relative;animation:none;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:200px}.dolar-card.loading::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);animation:loading-shine 1.5s infinite;border-radius:12px}@keyframes loading-shine {
    0% { left: -100%; }
    100% { left: 100%; }
}.spinner{border:4px solid rgba(0,123,255,.2);border-top:4px solid var(--card-title-color);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin-top:20px}@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}.dolar-card{background-color:var(--card-bg);border-radius:12px;box-shadow:0 4px 15px var(--card-shadow);padding:25px;text-align:center;transition:transform .3s ease , box-shadow .3s ease , background-color .3s ease , color .3s ease;position:relative;overflow:hidden;backface-visibility:hidden;-webkit-backface-visibility:hidden;animation:fadeInUp .6s ease-out forwards;opacity:0;transform:translateY(20px)}.dolar-card:nth-child(1) {animation-delay:.1s}.dolar-card:nth-child(2) {animation-delay:.2s}.dolar-card:nth-child(3) {animation-delay:.3s}.dolar-card:nth-child(4) {animation-delay:.4s}.dolar-card:nth-child(5) {animation-delay:.5s}.dolar-card:nth-child(6) {animation-delay:.6s}@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}.dolar-card:hover{transform:translateY(-8px);box-shadow:0 8px 25px var(--card-hover-shadow)}.dolar-card h2{color:var(--card-title-color);font-size:1.8em;margin-top:0;margin-bottom:15px;border-bottom:2px solid var(--border-color);padding-bottom:10px;font-weight:600;transition:color .3s ease , border-color .3s ease}.dolar-card p{font-size:1.1em;margin:10px 0;color:var(--text-color)}.dolar-card .precio-compra{font-size:1.6em;font-weight:bold;color:#28a745;display:flex;align-items:center;justify-content:center;gap:8px}.dolar-card .precio-venta{font-size:1.6em;font-weight:bold;color:#dc3545;margin-top:5px;display:flex;align-items:center;justify-content:center;gap:8px}.trend-up{color:#28a745}.trend-down{color:#dc3545}.trend-stable{color:#6c757d}.dolar-card .ultima-actualizacion{font-size:.9em;color:#777;margin-top:20px;border-top:1px dashed var(--border-color);padding-top:15px;transition:color .3s ease , border-color .3s ease}.dolar-card.error-card{background-color:var(--card-bg);color:var(--text-color);border:1px solid #dc3545;box-shadow:0 4px 15px rgba(220,53,69,.2);grid-column: 1 / -1;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:200px}.dolar-card.error-card h2{color:#dc3545}.dolar-card.error-card .ultima-actualizacion{color:#dc3545}.content-info{max-width:1200px;margin:40px auto;padding:0 20px}.content-info h2,.content-info h3{color:var(--card-title-color)}.content-info ul{list-style-type:disc;padding-left:20px}.content-info li{margin:10px 0}.faq-section{max-width:1200px;margin:50px auto;padding:0 20px}.faq-section h2{color:var(--card-title-color);text-align:center;margin-bottom:30px;font-size:2em}.faq-item{background-color:var(--card-bg);border-radius:12px;padding:25px;margin-bottom:20px;box-shadow:0 4px 15px var(--card-shadow);transition:box-shadow .3s ease , transform .3s ease}.faq-item:hover{transform:translateY(-2px);box-shadow:0 8px 25px var(--card-hover-shadow)}.faq-item h3{color:var(--card-title-color);margin-top:0;margin-bottom:15px;font-size:1.4em;border-bottom:2px solid var(--border-color);padding-bottom:10px}.faq-item p{font-size:1.1em;line-height:1.7;color:var(--text-color);margin:0}footer{text-align:center;padding:25px 0;margin-top:50px;background-color:var(--footer-bg);color:var(--footer-text);font-size:.9em;box-shadow:0 -2px 8px rgba(0,0,0,.15);transition:background-color .3s ease , color .3s ease}footer a{color:var(--card-title-color);text-decoration:none;font-weight:600}footer a:hover{text-decoration:underline;opacity:.9}body.dark-mode footer a{color:#63b3ed}#dark-mode-toggle:focus-visible{outline:2px solid var(--card-title-color);outline-offset:2px}*:focus{outline:2px solid var(--card-title-color);outline-offset:2px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.dolar-card{animation:none;opacity:1;transform:none}}@media (max-width:768px){header{padding:15px 15px}header h1{font-size:1.8em}header p{font-size:.8em}.header-controls{top:15px;right:15px}#search-input{width:90%}#dark-mode-toggle{padding:8px 12px;font-size:1em}.dashboard{padding:20px 15px;margin:20px auto}#dolar-cards-container{grid-template-columns:1fr;gap:20px}.dolar-card{padding:20px}.dolar-card h2{font-size:1.6em}.dolar-card .precio-compra,.dolar-card .precio-venta{font-size:1.4em}#ad-banner-space{margin:20px 0;min-height:60px}.content-info{padding:0 15px;margin:30px auto}.faq-section{margin:30px auto;padding:0 15px}.faq-section h2{font-size:1.8em}.faq-item{padding:20px;margin-bottom:15px}.faq-item h3{font-size:1.3em}.faq-item p{font-size:1em}}@media (max-width:480px){header{padding:10px 10px}header h1{font-size:1.6em}header p{font-size:.7em}.header-controls{top:10px;right:10px}.dashboard{padding:15px 10px}.dolar-card{padding:15px}.dolar-card h2{font-size:1.4em}.dolar-card p{font-size:1em}.dolar-card .precio-compra,.dolar-card .precio-venta{font-size:1.2em}.dolar-card .ultima-actualizacion{font-size:.8em}#ad-banner-space{margin:15px 0;font-size:1em;min-height:50px}.content-info{padding:0 10px;margin:20px auto}.faq-section{margin:20px auto;padding:0 10px}.faq-section h2{font-size:1.6em}.faq-item{padding:15px}.faq-item h3{font-size:1.2em}footer{padding:20px 10px;font-size:.8em}}