*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f8fafc;color:#1a1a1a;line-height:1.6;font-size:16px}.app{min-height:100vh;background:#f8fafc}.app-header{position:fixed;top:20px;left:50%;transform:translate(-50%) translateY(0);background:#fffffff2;backdrop-filter:blur(10px);border-radius:50px;padding:12px 24px;box-shadow:0 4px 20px #00000014;z-index:1000;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;border:1px solid rgba(255,255,255,.2);width:600px;max-width:600px;box-sizing:border-box;height:56px}.logo-sign{font-size:28px;font-weight:700;color:#111;letter-spacing:-.5px;line-height:1;display:flex;align-items:center;justify-self:start}.nav-links{display:flex;gap:16px;align-items:center;margin:0;justify-self:center}.nav-link{color:#64748b;text-decoration:none;font-weight:500;transition:color .2s ease;padding:6px 16px;border-radius:8px;height:32px;display:flex;align-items:center;box-sizing:border-box}.nav-link:hover{color:#111;background:#0000000a}.nav-link.active{color:#111;background:#00000014;border:none}.app-main{max-width:700px;margin:0 auto;padding:168px 40px 0;min-height:100vh;display:flex;flex-direction:column;justify-content:flex-start;scroll-behavior:smooth}.input-container{display:flex;flex-direction:column;gap:24px;align-items:center;margin-bottom:20px;width:100%;margin-top:0}.input-container{position:relative;top:auto;transform:none;will-change:auto;z-index:2;margin-top:clamp(0px,calc(50vh - 196px),40vh)}.input-wrapper{position:relative;width:100%;max-width:600px;margin-left:auto;margin-right:auto;z-index:1}.input-field{width:100%;padding:16px 20px;font-size:16px;background:#fff;border:2px solid #e2e8f0;border-radius:50px;color:#1a1a1a;transition:all .2s ease;outline:none;min-width:0;box-sizing:border-box;box-shadow:0 2px 8px #0000000a;height:56px}.input-field::placeholder{color:#9ca3af}.input-field:focus{border-color:#d1d5db;box-shadow:0 4px 20px #00000014;transform:translateY(-1px)}.input-field:focus,.input-field:focus-visible{outline:none!important;outline-offset:0!important;box-shadow:none;transform:none;border-color:#e2e8f0}.button-group{display:flex;gap:8px;align-items:center;justify-content:flex-start;width:100%;max-width:600px}.button-group .btn{padding:10px 20px;border-radius:12px;background:#f5f5f5!important;color:#4b5563!important;border:2px solid #e5e7eb!important;transition:all .2s ease;font-weight:500;font-size:16px;cursor:pointer;font-family:inherit;display:inline-flex;align-items:center;gap:8px;box-shadow:0 2px 8px #0000000a;height:45px;box-sizing:border-box}.button-group .btn:hover:not(.active):not(:disabled){background:#eee!important;border-color:#d1d5db!important;transform:translateY(-1px);box-shadow:0 4px 16px #00000014}.button-group .btn.active{background:#fff!important;color:#111827!important;border-color:#111827!important;font-weight:600;box-shadow:0 4px 20px #0000001f}.button-group .btn:disabled{background:#f5f5f5!important;color:#9ca3af!important;border:2px solid #e5e7eb!important;cursor:not-allowed;opacity:1;transform:none;box-shadow:none}.error-display{background:#fef2f2;color:#dc2626;padding:16px 20px;border-radius:8px;margin-bottom:40px;text-align:center;font-size:14px}.transcript-output{margin-top:10px;width:100%;max-width:600px;margin-left:auto;margin-right:auto;text-align:left}.transcript-line{margin-bottom:16px;color:#1a1a1a;font-size:16px;line-height:1.7;font-weight:400}.summary-output{width:100%;max-width:600px;margin:10px auto 20px;text-align:left}.summary-line{margin-bottom:12px;color:#111}@media (max-width: 768px){.app-header{padding:40px 0 30px}.logo-text{font-size:36px}.app-main{padding:0 24px}.input-container{margin-bottom:40px}.transcript-output{margin-top:30px}}.loading-bar{position:fixed;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,#111827,#6b7280,#111827);background-size:200% 100%;animation:loading-slide 1s linear infinite;z-index:9999}@keyframes loading-slide{0%{background-position:200% 0}to{background-position:-200% 0}}.btn-loading-inline{display:inline-flex;align-items:center;gap:10px}.spinner{display:inline-block;margin-left:0;width:16px;height:16px;border:2px solid #e5e7eb;border-top-color:#111827;border-radius:50%;animation:spin .8s linear infinite;vertical-align:middle}.about-page{text-align:center;max-width:600px;margin:0 auto}.about-title{font-size:48px;font-weight:700;color:#111;margin-bottom:32px;letter-spacing:-1px}.about-description{font-size:18px;line-height:1.7;color:#4b5563;margin-bottom:48px}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px;margin-bottom:48px}.feature-card{background:#fff;padding:32px 24px;border-radius:16px;box-shadow:0 2px 8px #0000000a;border:1px solid #e5e7eb;text-align:left}.feature-card h3{font-size:20px;font-weight:600;color:#111;margin-bottom:16px}.feature-card p{color:#6b7280;line-height:1.6;margin:0}.about-footer{font-size:16px;line-height:1.6;color:#6b7280;font-style:italic}html{overflow-y:scroll}.nav-link:focus,.nav-link:focus-visible,.button-group .btn:focus,.button-group .btn:focus-visible,.nav-link:active,.button-group .btn:active{outline:none!important;outline-offset:0!important;box-shadow:none!important}:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-light: #dbeafe;--color-secondary: #64748b;--color-success: #059669;--color-error: #dc2626;--color-warning: #d97706;--color-white: #ffffff;--color-gray-50: #f8fafc;--color-gray-100: #f1f5f9;--color-gray-200: #e2e8f0;--color-gray-300: #cbd5e1;--color-gray-400: #94a3b8;--color-gray-500: #64748b;--color-gray-600: #475569;--color-gray-700: #334155;--color-gray-800: #1e293b;--color-gray-900: #0f172a;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--spacing-1: .25rem;--spacing-2: .5rem;--spacing-3: .75rem;--spacing-4: 1rem;--spacing-5: 1.25rem;--spacing-6: 1.5rem;--spacing-8: 2rem;--spacing-10: 2.5rem;--spacing-12: 3rem;--spacing-16: 4rem;--radius-sm: .25rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .75rem;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--transition-fast: .15s ease-in-out;--transition-normal: .25s ease-in-out;--transition-slow: .35s ease-in-out}@media (prefers-color-scheme: dark){:root{--color-white: #0f172a;--color-gray-50: #1e293b;--color-gray-100: #334155;--color-gray-200: #475569;--color-gray-300: #64748b;--color-gray-400: #94a3b8;--color-gray-500: #cbd5e1;--color-gray-600: #e2e8f0;--color-gray-700: #f1f5f9;--color-gray-800: #f8fafc;--color-gray-900: #ffffff}}*{box-sizing:border-box}*:before,*:after{box-sizing:border-box}html{line-height:1.15;-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.6;color:var(--color-gray-900);background-color:var(--color-white);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{margin:0 0 var(--spacing-4) 0;font-weight:600;line-height:1.25;color:var(--color-gray-900)}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}h4{font-size:var(--font-size-lg)}h5{font-size:var(--font-size-base)}h6{font-size:var(--font-size-sm)}p{margin:0 0 var(--spacing-4) 0}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-hover)}*:focus{outline:2px solid var(--color-primary);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}@keyframes spin{to{transform:rotate(360deg)}}.loading-spinner{animation:spin 1s linear infinite}