:root{color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;--bg: #f8fafc;--bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);--panel: #ffffff;--panel-soft: #f1f5f9;--text: #0f172a;--muted: #64748b;--line: #e2e8f0;--accent: #0284c7;--accent-strong: #0369a1;--accent-glow: rgba(2, 132, 199, .12);--danger: #ef4444;--danger-bg: #fee2e2;--warning: #f59e0b;--warning-bg: #fef3c7;--ok: #10b981;--ok-bg: #d1fae5;--focus: rgba(2, 132, 199, .3);--shadow: 0 10px 30px -10px rgba(15, 23, 42, .08);--radius: 16px;--transition: all .3s cubic-bezier(.4, 0, .2, 1)}html.dark{color-scheme:dark;--bg: #090d16;--bg-gradient: radial-gradient(circle at 50% 0%, #1e1b4b 0%, #090d16 80%);--panel: rgba(15, 23, 42, .65);--panel-soft: rgba(30, 41, 59, .4);--text: #f8fafc;--muted: #94a3b8;--line: rgba(255, 255, 255, .08);--accent: #06b6d4;--accent-strong: #0891b2;--accent-glow: rgba(6, 182, 212, .25);--danger: #f87171;--danger-bg: rgba(239, 68, 68, .15);--warning: #fbbf24;--warning-bg: rgba(245, 158, 11, .15);--ok: #34d399;--ok-bg: rgba(16, 185, 129, .15);--focus: rgba(6, 182, 212, .4);--shadow: 0 20px 40px -15px rgba(0, 0, 0, .5)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;color:var(--text);background:var(--bg-gradient);transition:background .5s ease,color .3s ease;overflow-x:hidden}button,input{font:inherit}button{border:0;outline:none}a{color:inherit;text-decoration:none}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--muted)}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{width:min(1120px,calc(100% - 32px));margin:0 auto;padding:24px 0 12px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);transition:var(--transition)}.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text);font-family:Outfit,sans-serif;font-weight:800;font-size:1.4rem;letter-spacing:-.02em}.brand-mark{width:40px;height:40px;display:grid;place-items:center;border-radius:10px;color:#fff;background:linear-gradient(135deg,var(--accent) 0%,var(--accent-strong) 100%);box-shadow:0 4px 14px var(--accent-glow);transition:var(--transition)}.brand:hover .brand-mark{transform:rotate(5deg) scale(1.05)}.topbar-right{display:flex;align-items:center;gap:16px}.topbar-note{color:var(--muted);font-size:.9rem;font-weight:500}.page{width:min(1120px,calc(100% - 32px));margin:0 auto;padding:40px 0 80px;flex:1;display:grid;align-items:start;gap:32px;animation:fadeIn .5s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:32px;align-items:start}.tool{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);transition:var(--transition);overflow:hidden}.tool:hover{border-color:#ffffff1f;box-shadow:0 25px 50px -12px #00000040}.tool-header,.tool-body,.tool-footer{padding:28px}.tool-header{border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:18px;align-items:flex-start}h1,h2,p{margin:0}h1{font-family:Outfit,sans-serif;font-size:clamp(2.2rem,6vw,4.5rem);font-weight:900;line-height:1.05;letter-spacing:-.03em;max-width:820px;background:linear-gradient(135deg,var(--text) 30%,var(--muted) 90%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}h2{font-family:Outfit,sans-serif;font-size:1.25rem;font-weight:800;letter-spacing:-.01em}.lede{color:var(--muted);margin-top:16px;max-width:660px;line-height:1.6;font-size:1.1rem}.eyebrow{color:var(--accent);font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em;margin-bottom:8px}.dropzone{min-height:280px;border:2px dashed rgba(6,182,212,.3);border-radius:12px;background:var(--panel-soft);display:grid;place-items:center;padding:32px;text-align:center;cursor:pointer;outline:none;position:relative;overflow:hidden;transition:var(--transition)}.dropzone:before{content:"";position:absolute;inset:0;background:radial-gradient(circle,var(--accent-glow) 0%,transparent 70%);opacity:0;transition:var(--transition);pointer-events:none}.dropzone:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 10px 20px -10px var(--accent-glow)}.dropzone:hover:before{opacity:1}.dropzone.dragging{border-color:var(--accent);background:var(--accent-glow);transform:scale(.99)}.dropzone input{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}.dropzone-content{display:grid;gap:16px;justify-items:center;position:relative;z-index:2}.dropzone-icon{color:var(--accent);transition:var(--transition)}.dropzone:hover .dropzone-icon{transform:translateY(-4px) scale(1.05)}.dropzone-title{font-size:1.2rem;font-weight:800}.dropzone-subtitle,.muted{color:var(--muted);line-height:1.5;font-size:.95rem}.file-row,.share-row,.status-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;border-top:1px solid var(--line);animation:slideIn .3s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.file-row:first-child,.share-row:first-child,.status-row:first-child{border-top:0}.file-name{font-weight:700;overflow-wrap:anywhere;font-size:1.05rem}.file-meta{color:var(--muted);font-size:.9rem;margin-top:4px}.actions{display:flex;flex-wrap:wrap;gap:12px}.button{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:10px;padding:0 20px;background:linear-gradient(135deg,var(--accent) 0%,var(--accent-strong) 100%);color:#fff;font-weight:700;cursor:pointer;text-decoration:none;box-shadow:0 4px 12px var(--accent-glow);transition:var(--transition)}.button:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px var(--accent-glow)}.button:active:not(:disabled){transform:scale(.98)}.button.secondary{background:var(--panel-soft);color:var(--text);border:1px solid var(--line);box-shadow:none}.button.secondary:hover:not(:disabled){background:var(--line);box-shadow:none}.button.ghost{background:transparent;color:var(--accent);box-shadow:none}.button.ghost:hover:not(:disabled){background:var(--panel-soft)}.button:disabled{cursor:not-allowed;opacity:.5}.icon-button{width:46px;height:46px;display:inline-grid;place-items:center;border-radius:10px;background:var(--panel-soft);color:var(--text);border:1px solid var(--line);cursor:pointer;transition:var(--transition)}.icon-button:hover{background:var(--line);color:var(--accent);transform:scale(1.05)}.icon-button:active{transform:scale(.95)}.progress{display:grid;gap:10px;margin-top:24px}.progress-label{display:flex;justify-content:space-between;gap:12px;color:var(--text);font-weight:700;font-size:.95rem}.progress-track{height:12px;overflow:hidden;border-radius:999px;background:var(--panel-soft);border:1px solid var(--line);position:relative}.progress-fill{height:100%;width:var(--value, 0%);background:linear-gradient(90deg,var(--accent) 0%,#3b82f6 100%);border-radius:999px;transition:width .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.progress-fill:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#fff0,#ffffff40,#fff0);animation:progressShimmer 1.8s infinite;transform:translate(-100%)}@keyframes progressShimmer{to{transform:translate(100%)}}.share-input{width:100%;min-height:46px;border:1px solid var(--line);border-radius:10px;padding:10px 14px;color:var(--text);background:var(--panel-soft);outline:none;font-family:monospace;font-size:.9rem;transition:var(--transition)}.share-input:focus{border-color:var(--accent);background:var(--panel)}.share-input:focus,.button:focus-visible,.icon-button:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.side-panel{display:grid;gap:16px}.fact-list{display:grid;gap:14px;color:var(--muted);line-height:1.5;font-size:.95rem}.fact{display:flex;gap:12px;align-items:flex-start}.fact svg{color:var(--accent);flex:0 0 auto;margin-top:3px}.notice{border-radius:12px;padding:16px;background:var(--warning-bg);color:var(--warning);border:1px solid rgba(245,158,11,.2);line-height:1.5;font-size:.95rem;font-weight:500;display:flex;align-items:flex-start;gap:12px;animation:slideIn .3s ease-out}.notice.error{background:var(--danger-bg);color:var(--danger);border-color:#ef444433}.notice.ok{background:var(--ok-bg);color:var(--ok);border-color:#10b98133}.download-stage{display:grid;gap:20px}.theme-switch{background:transparent;padding:8px;border-radius:50%;cursor:pointer;transition:var(--transition)}.theme-switch:hover{background:var(--panel-soft);color:var(--accent);transform:rotate(15deg)}@media(max-width:860px){.workspace{grid-template-columns:1fr}.topbar{align-items:center;padding:16px 0}}@media(max-width:560px){.page,.topbar{width:min(100% - 24px,1120px)}.tool-header,.tool-body,.tool-footer{padding:20px}.dropzone{min-height:240px;padding:24px}.file-row,.share-row,.status-row{align-items:stretch;flex-direction:column}.actions{margin-top:8px}.button,.icon-button{width:100%}}