/* 1ClickTube YouTube Transcript Downloader — Standalone Stylesheet */
:root{--bg:#0f0f14;--bg-elevated:#181820;--bg-card:#1e1e28;--bg-hover:#25252f;--border:#2a2a35;--border-light:#353542;--text:#f4f4f7;--text-muted:#a0a0ad;--text-dim:#6c6c79;--accent:#6366f1;--accent-hover:#5457e5;--accent-light:rgba(99,102,241,0.15);--accent-glow:rgba(99,102,241,0.4);--success:#10b981;--danger:#ef4444;--gradient:linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#ec4899 100%);--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--shadow-sm:0 2px 8px rgba(0,0,0,0.3);--shadow-md:0 8px 24px rgba(0,0,0,0.4);--shadow-lg:0 16px 48px rgba(0,0,0,0.5);--shadow-glow:0 0 40px var(--accent-glow)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter','Noto Sans','Noto Sans Bengali','Noto Sans Devanagari','Noto Sans Arabic','Noto Sans JP','Noto Sans KR','Noto Sans SC','Noto Sans Thai',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased}
body::before{content:'';position:fixed;top:-50%;left:-25%;width:75%;height:75%;background:radial-gradient(circle,var(--accent-light) 0%,transparent 60%);filter:blur(80px);pointer-events:none;z-index:0}
.app{position:relative;z-index:1;min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 1.25rem}

/* Header */
.header{position:sticky;top:0;z-index:100;background:rgba(15,15,20,0.8);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:.625rem;text-decoration:none;color:var(--text);font-weight:800;font-size:1.25rem;letter-spacing:-0.02em}
.logo .accent{color:var(--accent)}
.nav{display:flex;align-items:center;gap:1.5rem}
.nav a{color:var(--text-muted);text-decoration:none;font-size:.9rem;font-weight:500;transition:color .2s}
.nav a:hover{color:var(--text)}
.nav-back{display:inline-flex;align-items:center;gap:.35rem}
.nav-back svg{flex-shrink:0;transition:transform .15s}
.nav-back:hover svg{transform:translateX(-3px)}

/* Hero */
.main{flex:1}
.hero{text-align:center;padding:4rem 0 3rem;max-width:800px;margin:0 auto}
.badge{display:inline-block;padding:.4rem .9rem;background:var(--accent-light);color:var(--accent);border:1px solid rgba(99,102,241,0.3);border-radius:999px;font-size:.8rem;font-weight:600;margin-bottom:1.5rem}
.hero-title{font-size:clamp(1.5rem,3.5vw,2.4rem);font-weight:900;line-height:1.2;letter-spacing:-0.03em;margin-bottom:1rem}
.gradient-text{background:var(--gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-subtitle{font-size:clamp(1rem,2vw,1.15rem);color:var(--text-muted);max-width:620px;margin:0 auto 2.5rem}

/* Form */
.url-form{display:flex;gap:.75rem;align-items:stretch;max-width:700px;margin:0 auto}
.url-input-wrap{position:relative;flex:1;display:flex;align-items:center}
.url-icon{position:absolute;left:1rem;color:var(--text-dim);pointer-events:none}
.url-input{width:100%;padding:1rem 1rem 1rem 3rem;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-md);color:var(--text);font-size:1rem;font-family:inherit;transition:all .2s;outline:none}
.url-input::placeholder{color:var(--text-dim)}
.url-input:focus{border-color:var(--accent);background:var(--bg-hover);box-shadow:0 0 0 4px var(--accent-light)}
.paste-btn{position:absolute;right:.5rem;display:flex;align-items:center;gap:.375rem;padding:.5rem .75rem;background:var(--bg-hover);border:1px solid var(--border-light);border-radius:var(--radius-sm);color:var(--text-muted);font-size:.85rem;font-weight:500;cursor:pointer;transition:all .15s}
.paste-btn:hover{background:var(--accent);color:white;border-color:var(--accent)}
.btn-primary{display:flex;align-items:center;gap:.5rem;padding:1rem 1.5rem;background:var(--accent);color:white;border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap}
.btn-primary:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-glow)}
.btn-primary:disabled{opacity:.6;cursor:not-allowed}
.btn-icon{flex-shrink:0}

/* Status */
.error-msg{margin:1.5rem auto 0;max-width:700px;padding:1rem 1.25rem;background:rgba(239,68,68,0.1);border:1px solid rgba(239,68,68,0.3);border-radius:var(--radius-md);color:#fca5a5;font-size:.95rem}
.loading-state{margin:2rem auto 0;max-width:700px;text-align:center;color:var(--text-muted)}
.spinner{width:40px;height:40px;border:3px solid var(--border-light);border-top-color:var(--accent);border-radius:50%;margin:0 auto 1rem;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Results */
.results{margin-top:2.5rem;animation:slideUp .4s ease-out}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

/* Two-column results grid */
.results-grid{display:grid;grid-template-columns:3fr 7fr;gap:1.25rem;align-items:stretch}

/* Left: video player */
.results-left{position:sticky;top:80px;display:flex;flex-direction:column;gap:1rem}
.player-wrap{position:relative;width:100%;aspect-ratio:16/9;border-radius:var(--radius-lg);overflow:hidden;background:#000;box-shadow:var(--shadow-lg);border:1px solid var(--border)}
.video-player{width:100%;height:100%;border:none}
.video-info-inline{display:flex;align-items:center;gap:1rem;margin-top:1rem;padding:.875rem 1rem;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md)}
.video-info-inline .video-thumb{width:80px;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-sm);flex-shrink:0}
.video-info-inline .video-title{font-size:.95rem;font-weight:600;line-height:1.3;margin-bottom:.15rem}
.video-info-inline .video-uploader{font-size:.8rem;color:var(--text-muted)}
.video-info-inline .video-duration{font-size:.75rem;color:var(--text-dim);margin-top:.1rem}

/* Right: transcript */
.results-right{min-width:0;display:flex;flex-direction:column;flex:1}

/* Video info card */
.video-info-card{display:flex;align-items:center;gap:1.25rem;padding:1.25rem;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);margin-bottom:1.5rem}
.video-thumb{width:160px;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-md);background:var(--bg-elevated)}
.video-title{font-size:1.15rem;font-weight:700;margin-bottom:.25rem;line-height:1.3}
.video-uploader{font-size:.88rem;color:var(--text-muted)}
.video-duration{font-size:.8rem;color:var(--text-dim);margin-top:.25rem}

/* Language selector */
.lang-section{margin-bottom:1.5rem}
.lang-row{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap}
.lang-label{font-size:.9rem;font-weight:600;color:var(--text-muted)}
.lang-select{padding:.5rem .75rem;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-sm);color:var(--text);font-size:.88rem;font-family:inherit;cursor:pointer;min-width:180px}
.lang-select:focus{outline:none;border-color:var(--accent)}
.lang-btn{display:inline-flex;align-items:center;gap:.35rem;padding:.5rem 1rem;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-sm);color:var(--text-muted);font-size:.85rem;font-weight:500;cursor:pointer;transition:all .15s}
.lang-btn:hover{background:var(--accent);color:white;border-color:var(--accent)}
.lang-badge{display:inline-block;margin-top:.4rem;padding:.25rem .6rem;background:var(--accent-light);color:var(--accent);border-radius:999px;font-size:.75rem;font-weight:600}

/* Content section */
.content-section{margin-bottom:2rem;display:flex;flex-direction:column;flex:1}
.content-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1rem;flex-wrap:wrap}
.section-subtitle{font-size:1.1rem;font-weight:700}
.content-actions{display:flex;gap:.5rem;flex-wrap:wrap}
.action-btn{display:inline-flex;align-items:center;gap:.35rem;padding:.5rem .85rem;border:1px solid var(--border-light);border-radius:var(--radius-sm);background:var(--bg-card);color:var(--text-muted);font-size:.82rem;font-weight:500;cursor:pointer;transition:all .15s;font-family:inherit}
.action-btn:hover{background:var(--bg-hover);color:var(--text);border-color:var(--accent)}
.action-copy:hover{background:rgba(99,102,241,0.1);color:var(--accent)}
.action-copy-time:hover{background:rgba(16,185,129,0.1);color:var(--success)}
.action-download:hover{background:rgba(99,102,241,0.15);color:var(--accent);border-color:var(--accent)}
.action-mode{position:relative}
.action-mode.active{background:rgba(99,102,241,0.18);color:var(--accent);border-color:var(--accent)}
.action-mode.active svg{stroke:var(--accent)}

/* Download row */
.download-row{
  display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;
  margin-top:.75rem;padding:.75rem 1rem;
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);
}
.download-label{font-size:.85rem;font-weight:600;color:var(--text-muted);margin-right:.25rem}
.dl-btn{
  display:inline-flex;align-items:center;gap:.3rem;
  padding:.45rem .85rem;border:1px solid var(--border-light);border-radius:var(--radius-sm);
  background:var(--bg-elevated);color:var(--text-muted);
  font-size:.8rem;font-weight:600;font-family:inherit;cursor:pointer;
  transition:all .15s;white-space:nowrap;
}
.dl-btn:hover{background:var(--accent);color:white;border-color:var(--accent)}
.dl-btn:disabled{opacity:.5;cursor:wait}

/* Edit hint */
.edit-hint{
  font-size:.78rem;color:var(--text-dim);margin-bottom:.5rem;
  padding-left:.25rem;font-style:italic;
}

/* Live editing */
.ts-text{cursor:text;transition:background .15s,border-color .15s;border:1px solid transparent;border-radius:4px}
.ts-text:focus{outline:none;background:rgba(99,102,241,0.06);border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-light)}
.ts-section.editing .ts-time{background:var(--accent);color:white}
.ts-section.editing{background:rgba(99,102,241,0.06)}

/* Transcript content — timestamp layout (1-min sections) */
.transcript-content{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;flex:1;min-height:300px;max-height:600px;overflow-y:auto;
  scroll-behavior:smooth;
  scrollbar-width:thin;scrollbar-color:var(--border-light) transparent;
}
.transcript-content::-webkit-scrollbar{width:6px}
.transcript-content::-webkit-scrollbar-track{background:transparent}
.transcript-content::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:3px}
.ts-section{
  display:flex;align-items:flex-start;gap:0;
  border-bottom:1px solid var(--border);transition:background .15s;
}
.ts-section:last-child{border-bottom:none}
.ts-section:hover{background:var(--bg-hover)}
.ts-section.active{background:rgba(99,102,241,0.1);border-left:3px solid var(--accent)}
.ts-section.active .ts-time{background:rgba(99,102,241,0.18);color:white;font-weight:800}
.ts-section.active .ts-text{color:var(--text);font-weight:500}
.ts-word{display:inline;transition:color .1s, background .1s, border-color .1s; border-bottom:2px solid transparent; border-radius:2px; padding:0 1px}
.ts-word[data-wt]{cursor:pointer}
.ts-word[data-wt]:hover{color:var(--accent)!important;text-decoration:underline}
.ts-word.active{color:var(--accent)!important;background:rgba(99,102,241,0.18);border-bottom-color:var(--accent);font-weight:600}
.ts-word.past{color:var(--text);border-bottom-color:transparent}
.ts-time{
  flex-shrink:0;width:80px;min-width:80px;
  padding:.75rem .75rem;
  font-size:.8rem;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--accent);background:rgba(99,102,241,0.06);
  border-right:1px solid var(--border);
  text-align:center;user-select:all;cursor:pointer;
  transition:all .15s;
}
.ts-section:hover .ts-time{background:rgba(99,102,241,0.12)}
.ts-text{
  flex:1;padding:.75rem 1.1rem;
  font-family:'Inter','Noto Sans','Noto Sans Bengali','Noto Sans Devanagari','Noto Sans Arabic','Noto Sans JP','Noto Sans KR','Noto Sans SC','Noto Sans Thai',sans-serif;
  font-size:.88rem;line-height:1.7;color:var(--text-muted);
  word-break:break-word;overflow-wrap:anywhere;
  white-space:pre-line;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
.ts-section:hover .ts-text{color:var(--text)}

/* No result */
.no-result{text-align:center;padding:3rem 1rem;color:var(--text-dim)}
.no-result svg{margin-bottom:1rem;opacity:.5}
.no-result p{font-size:1rem;margin-bottom:.5rem}
.no-result-hint{font-size:.85rem;color:var(--text-dim);max-width:400px;margin:0 auto}

/* Steps */
.section{padding:4rem 0}
.section-title{text-align:center;font-size:clamp(1.5rem,3vw,2rem);font-weight:800;margin-bottom:2.5rem;letter-spacing:-0.02em}
.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem}
.step-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.75rem;text-align:left;transition:all .2s}
.step-card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow-md)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--gradient);color:white;border-radius:50%;font-weight:700;font-size:1.1rem;margin-bottom:1rem}
.step-card h3{font-size:1.1rem;font-weight:700;margin-bottom:.5rem}
.step-card p{color:var(--text-muted);font-size:.95rem;line-height:1.5}
.step-card em{color:var(--accent);font-style:normal;font-weight:600}

/* FAQ */
.faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:.75rem}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:1rem 1.25rem;transition:all .2s}
.faq-item[open]{border-color:var(--accent)}
.faq-item summary{font-weight:600;cursor:pointer;list-style:none;position:relative;padding-right:1.5rem}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:1.25rem;color:var(--accent);transition:transform .2s}
.faq-item[open] summary::after{content:'\2212'}
.faq-item p{margin-top:.75rem;color:var(--text-muted);font-size:.95rem;line-height:1.6}

/* Footer */
.footer{border-top:1px solid var(--border);padding:2rem 0;margin-top:4rem}
.footer-inner{display:flex;flex-direction:column;align-items:center;gap:.5rem;text-align:center}
.footer p{color:var(--text-dim);font-size:.85rem}
.footer-disclaimer{font-size:.75rem!important;opacity:.7}

/* Focus */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* Multi-script support */
.ts-section[dir="rtl"]{direction:rtl;text-align:right}
.ts-section[dir="rtl"] .ts-time{border-right:none;border-left:1px solid var(--border)}
.ts-section[dir="rtl"] .ts-text{font-family:'Noto Sans Arabic','Noto Sans','Inter',sans-serif}

/* Bengali/Devanagari script */
.ts-section[data-script="bn"] .ts-text,
.ts-section[data-script="hi"] .ts-text,
.ts-section[data-script="mr"] .ts-text,
.ts-section[data-script="ne"] .ts-text,
.ts-section[data-script="si"] .ts-text{line-height:1.8}

/* CJK script */
.ts-section[data-script="ja"] .ts-text,
.ts-section[data-script="ko"] .ts-text,
.ts-section[data-script="zh"] .ts-text{font-family:'Noto Sans JP','Noto Sans KR','Noto Sans SC','Noto Sans',sans-serif;letter-spacing:0.02em}

/* Thai script */
.ts-section[data-script="th"] .ts-text{font-family:'Noto Sans Thai','Noto Sans',sans-serif}

/* Arabic/RTL scripts */
.ts-section[data-script="ar"] .ts-text,
.ts-section[data-script="he"] .ts-text,
.ts-section[data-script="ur"] .ts-text,
.ts-section[data-script="fa"] .ts-text{font-family:'Noto Sans Arabic','Noto Sans',sans-serif;line-height:1.8}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .results-grid{grid-template-columns:1fr}
  .results-left{position:static}
  .video-player{max-height:400px}
}
@media(max-width:900px){
  .video-info-card{max-width:480px;margin-left:auto;margin-right:auto}
}
@media(max-width:640px){
  .container{padding:0 1rem}
  .header-inner{height:56px}
  .nav{gap:1rem}
  .nav-back span{display:none}
  .hero{padding:2.5rem 0 2rem}
  .url-form{flex-direction:column}
  .paste-btn span{display:none}
  .video-info-card{flex-direction:column;text-align:center}
  .video-thumb{width:100%;max-width:320px}
  .video-info-inline{flex-direction:column;text-align:center}
  .video-info-inline .video-thumb{width:120px}
  .lang-row{flex-direction:column;align-items:stretch}
  .lang-select{min-width:0}
  .lang-btn{justify-content:center}
  .content-header{flex-direction:column;align-items:flex-start}
  .content-actions{width:100%}
  .action-btn{flex:1;justify-content:center;min-width:0}
  .download-row{flex-wrap:wrap;justify-content:center}
  .download-label{width:100%;text-align:center;margin-bottom:.25rem}
  .ts-time{width:64px;min-width:64px;font-size:.72rem;padding:.6rem .5rem}
  .ts-text{padding:.6rem .75rem;font-size:.85rem}
  .section{padding:2.5rem 0}
  .steps-grid{grid-template-columns:1fr}
}
@media(max-width:380px){
  .ts-time{width:56px;min-width:56px;font-size:.68rem;padding:.5rem .35rem}
  .ts-text{padding:.5rem .6rem;font-size:.8rem}
  .content-actions{flex-direction:column}
  .action-btn{width:100%}
}
@media(min-width:1400px){.container{max-width:1320px}.hero{padding:5rem 0 4rem}}
@media(min-width:1920px){.container{max-width:1600px}body{font-size:1.1rem}.hero-title{font-size:4.5rem}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}html{scroll-behavior:auto}}
.section-desc{text-align:center;color:var(--muted);font-size:.95rem;margin-bottom:2rem}
.seo-content{margin-top:3rem}
.seo-content h2{font-size:1.5rem;color:var(--accent);margin-bottom:1rem}
.seo-content h3{font-size:1.2rem;color:var(--accent);margin:1.5rem 0 .75rem}
.seo-content p{color:var(--muted);line-height:1.7;margin-bottom:1rem}
.seo-content ul{list-style:none;padding:0;margin-bottom:1.5rem}
.seo-content ul li{padding:.4rem 0;padding-left:1.5rem;position:relative;color:var(--muted)}
.seo-content ul li::before{content:'✓';position:absolute;left:0;color:var(--accent);font-weight:700}
.footer-links{margin:.5rem 0}
.footer-links a{color:var(--muted);text-decoration:none;font-size:.85rem;transition:color .2s}
.footer-links a:hover{color:var(--accent)}
.hero-image{display:block;width:100%;max-width:560px;height:auto;margin:2rem auto 0;border-radius:16px;opacity:.92}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin:2rem 0}
.feature-card{background:rgba(30,27,75,.5);border:1px solid rgba(99,102,241,.15);border-radius:12px;padding:1.5rem;text-align:center;transition:transform .2s,border-color .2s}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(99,102,241,.4)}
.feature-card img{width:80px;height:80px;margin:0 auto .75rem;display:block}
.feature-card h3{font-size:1rem;color:var(--accent);margin-bottom:.5rem}
.feature-card p{font-size:.85rem;color:var(--muted);line-height:1.5}
.usecases-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin:2rem 0}
.usecase-card{background:rgba(30,27,75,.4);border:1px solid rgba(99,102,241,.1);border-radius:12px;overflow:hidden;transition:transform .2s}
.usecase-card:hover{transform:translateY(-3px)}
.usecase-card img{width:100%;height:auto;display:block}
.usecase-card h4{font-size:1rem;color:var(--accent);margin:1rem 1rem .5rem}
.usecase-card p{font-size:.85rem;color:var(--muted);line-height:1.5;margin:0 1rem 1rem}
@media(max-width:768px){.features-grid,.usecases-grid{grid-template-columns:1fr}.hero-image{max-width:100%}}