:root{--bg-dark:#0a0a0c;--bg-card:#141417;--primary:#ff8c00;--primary-hover:#e67e00;--text-main:#e0e0e0;--text-muted:#a0a0a0;--white:#ffffff;--glass:rgba(255,255,255,0.03);--glass-border:rgba(255,255,255,0.07);--transition:all 0.3s cubic-bezier(0.4,0,0.2,1);}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Inter',sans-serif;background-color:var(--bg-dark);color:var(--text-main);line-height:1.6;overflow-x:hidden;}
h1,h2,h3,.logo-text{font-family:'Outfit',sans-serif;color:var(--white);}
.container{max-width:1200px;margin:0 auto;padding:0 1.5rem;}
.site-header{padding:1rem 0;border-bottom:1px solid var(--glass-border);}
.site-header .container{display:flex;justify-content:center;align-items:center;}
.logo-link{text-decoration:none;color:inherit;display:inline-block;}
.logo-text{font-size:1.5rem;font-weight:800;letter-spacing:-0.5px;}
.highlight{color:var(--primary);}
.main-nav ul{display:flex;list-style:none;gap:2rem;}
.main-nav a{text-decoration:none;color:var(--text-muted);font-weight:500;transition:var(--transition);}
.main-nav a:hover{color:var(--primary);}
.hero{padding:4rem 0 3rem;text-align:center;background:radial-gradient(circle at top center,rgba(255,140,0,0.05) 0%,transparent 70%);}
.hero h1{font-size:2.75rem;font-weight:800;margin-bottom:1.5rem;line-height:1.2;letter-spacing:-0.02em;}
.text-gradient{background:linear-gradient(90deg,#ff8c00,#ffa500);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.hero-subtitle{font-size:1.25rem;color:var(--text-muted);max-width:600px;margin:0 auto 2rem;}
.input-container{max-width:700px;margin:0 auto;}
.input-wrapper{display:flex;background:transparent;padding:0;border:none;box-shadow:none;border-radius:0;transition:var(--transition);width:100%;}
.input-box{position:relative;flex-grow:1;display:flex;align-items:center;background:var(--bg-card);border:2px solid var(--primary);border-right:none;border-radius:12px 0 0 12px;transition:var(--transition);}
#videoUrl{width:100%;background:transparent;border:none;padding:1.25rem 3.25rem 1.25rem 1.5rem;color:var(--white);font-size:1.1rem;outline:none;}
.clear-btn{position:absolute;right:.5rem;top:50%;transform:translateY(-50%);background:transparent;border:none;color:var(--text-muted);font-size:1.1rem;padding:.5rem;cursor:pointer;transition:var(--transition);display:flex;align-items:center;justify-content:center;line-height:1;z-index:2;-webkit-tap-highlight-color:transparent;user-select:none;outline:none;}
.clear-btn:hover{color:var(--white);}
.btn-primary{background:var(--primary);color:var(--white);border:2px solid var(--primary);padding:0 2rem;border-radius:0 12px 12px 0;font-weight:400;font-size:1.05rem;cursor:pointer;transition:var(--transition);white-space:nowrap;display:flex;align-items:center;justify-content:center;gap:0.5rem;text-decoration:none;}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);}.btn-primary svg,.clear-btn svg{width:20px;height:20px;}.btn-primary svg{transform:translateY(-1px);}
.input-hint{margin-top:1rem;font-size:.875rem;color:var(--text-muted);}
.about-card{text-align:center;max-width:800px;margin:0 auto;}
.about-text{font-size:1.05rem;color:var(--text-muted);margin-bottom:1.5rem;line-height:1.7;text-align:left;}
.card-api-container{max-width:600px;margin:0 auto;border-radius:1.5rem;overflow:hidden;min-height:100px;animation:slideUp .5s ease-out;}
.iframe-loading{display:flex;flex-direction:column;gap:1.2rem;padding:1.5rem;background:var(--bg-card);border:1px solid var(--glass-border);border-radius:1.5rem;width:100%;max-width:600px;margin:0 auto;}
.skeleton-item{background:linear-gradient(90deg,#1e1e22 25%,#2a2a30 50%,#1e1e22 75%);background-size:200% 100%;animation:skeleton-shimmer 1.5s infinite linear;border-radius:8px;width:100%;}
.skeleton-thumbnail{height:180px;border-radius:12px;}
.skeleton-title,.skeleton-dropdown,.skeleton-button{height:42px;}
@keyframes skeleton-shimmer{0%{background-position:200% 0;}100%{background-position:-200% 0;}}
.iframe-loading span{display:none;}
.iframe-loading .loader{display:none;}
.section{padding:4rem 0;}
.section-title{font-size:2rem;text-align:center;margin-bottom:2rem;}
.glass-section{background:var(--glass);border-top:1px solid var(--glass-border);border-bottom:1px solid var(--glass-border);}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;}
.step-card{padding:2rem 1.5rem;background:var(--bg-card);border-radius:1.5rem;border:1px solid var(--glass-border);text-align:left;transition:var(--transition);}
.step-number{font-size:3rem;font-weight:800;color:rgba(255,140,0,.2);margin-bottom:1rem;line-height:1;}
.step-card h3{font-size:1.35rem;margin-bottom:1rem;}
.step-card p{color:var(--text-muted);}
.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem;}
.feature-item{display:flex;flex-direction:column;}
.feature-header{display:flex;align-items:center;gap:1.25rem;margin-bottom:1rem;}
.feature-icon{color:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.feature-item h3{font-size:1.15rem;margin-bottom:0;color:var(--white);}
.feature-item p{color:var(--text-muted);line-height:1.6;font-size:1rem;}
.feature-icon svg{width:20px;height:20px;}
.site-footer{padding:2rem 0;border-top:1px solid var(--glass-border);}
.footer-content{display:flex;justify-content:center;}
.footer-info{color:var(--text-muted);font-size:.85rem;display:flex;gap:1.5rem;align-items:center;flex-wrap:wrap;justify-content:center;}
.footer-info a{color:var(--text-muted);text-decoration:none;transition:var(--transition);}
.footer-info a:hover{color:var(--primary);}
.faq-grid{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:1rem;}
.faq-item{background:var(--bg-card);padding:1.5rem;border-radius:1.25rem;border:1px solid var(--glass-border);transition:var(--transition);}
.faq-item h3{font-size:1.15rem;margin-bottom:.75rem;color:var(--white);}
.faq-answer p{color:var(--text-muted);line-height:1.6;font-size:1rem;}
@keyframes slideUp{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);}}
.loader{width:20px;height:20px;border:2px solid var(--white);border-bottom-color:transparent;border-radius:50%;display:inline-block;animation:rotation 1s linear infinite;}
@keyframes rotation{0%{transform:rotate(0deg);}100%{transform:rotate(360deg);}}
@media(max-width:992px){.hero h1{font-size:2.25rem;}.section-title{font-size:1.85rem;}.steps-grid{grid-template-columns:1fr;}}
@media(max-width:768px){.main-nav{display:none;}.hero{padding:4rem 0;}.hero h1{font-size:1.75rem;margin-bottom:1.5rem;}.about-text{font-size:.95rem;}.input-wrapper{flex-direction:column;gap:1rem;background:transparent;padding:0;border:none;box-shadow:none;}#videoUrl{padding:1rem 3.25rem 1rem 1.25rem;font-size:1.1rem;}.input-box{width:100%;margin-bottom:0;border-right:2px solid var(--primary);border-radius:12px;}.clear-btn{right:.25rem;}.btn-primary{width:100%;padding:1rem 1.75rem;border-radius:12px;font-size:1.05rem;}.features-grid{grid-template-columns:1fr;}.section-title{font-size:1.6rem;margin-bottom:2rem;}.error-actions .btn-primary{width:auto;}}
.legal-page{padding:4rem 0 6rem;background:radial-gradient(circle at top center,rgba(255,140,0,.03) 0%,transparent 50%);}
.legal-container{max-width:800px;margin:0 auto;padding:0 1.5rem;}
.legal-header{margin-bottom:3rem;text-align:center;}
    .legal-title{font-size:2.5rem;font-weight:800;margin-bottom:.5rem;}
    .legal-content{background:var(--bg-card);padding:3rem;border-radius:1.5rem;border:1px solid var(--glass-border);box-shadow:0 10px 30px rgba(0,0,0,.2);}
.legal-section{margin-bottom:2.5rem;}
.legal-section:last-child{margin-bottom:0;}
.legal-section h2{font-size:1.5rem;margin-bottom:1.25rem;color:var(--white);display:flex;align-items:center;gap:.75rem;}
.legal-section p{color:var(--text-main);margin-bottom:1rem;line-height:1.7;}
.legal-section ul{list-style:none;margin-bottom:1rem;padding-left:1rem;}
.legal-section li{position:relative;padding-left:1.5rem;margin-bottom:.5rem;color:var(--text-main);}
.legal-section li::before{content:"•";position:absolute;left:0;color:var(--text-main);font-weight:bold;}
.legal-section a{color:var(--primary);text-decoration:none;border-bottom:1px solid transparent;transition:var(--transition);}
.legal-section a:hover{border-bottom-color:var(--primary);}
@media(max-width:768px){.legal-page{padding:3rem 0 4rem;}.legal-title{font-size:2rem;}.legal-content{padding:1.5rem;}}
.error-body{overflow:hidden;}
.error-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-dark);}
.error-container{max-width:600px;margin:0 auto;text-align:center;padding:0 1.5rem;}
.error-code{font-size:8rem;font-weight:800;line-height:1;font-family:'Outfit',sans-serif;background:linear-gradient(135deg,var(--white) 30%,var(--primary) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:1.5rem;letter-spacing:-0.05em;}
.error-title{font-size:2.25rem;font-weight:700;margin-bottom:1.25rem;color:var(--white);}
.error-message{font-size:1.15rem;color:var(--text-muted);margin-bottom:2.5rem;line-height:1.7;}
.error-actions{display:flex;justify-content:center;gap:1.25rem;}.error-actions .btn-primary{padding:1rem 2.5rem;border-radius:12px;}
@media(max-width:768px){.error-page{padding:4rem 0;}.error-code{font-size:6rem;}.error-title{font-size:1.75rem;}.error-message{font-size:1rem;}}
.notice-box{margin-top:2rem;padding:1.5rem;background:rgba(255,140,0,0.05);border:1px solid rgba(255,140,0,0.2);border-radius:1rem;display:flex;align-items:flex-start;gap:1.25rem;text-align:left;animation:slideUp .5s ease-out;}.notice-icon{color:var(--primary);display:flex;align-items:center;justify-content:center;margin-top:0.25rem;flex-shrink:0;}.notice-icon svg{width:22px;height:22px;}.notice-content p{margin:0;font-size:0.95rem;color:var(--text-main);line-height:1.6;}.notice-content strong{color:var(--primary);font-weight:600;}@media(max-width:768px){.notice-box{padding:1.25rem;gap:1rem;}.notice-icon{margin-top:0;}}.how-to-link{display:inline-flex;align-items:center;gap:0.4rem;margin-top:1.5rem;color:var(--primary);text-decoration:none;font-size:0.95rem;font-weight:400;transition:var(--transition);cursor:pointer;}.how-to-link:hover{color:var(--white);}.how-to-link svg{color:var(--primary);width:17px;height:17px;transition:inherit;transform:translateY(-2px);}.how-to-link:hover svg{color:var(--white);}