@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{--primary: #ee4d2d;--primary-dark: #d73211;--primary-light: #ff6b47;--primary-glow: rgba(238, 77, 45, .15);--bg-primary: #0f0f12;--bg-secondary: #16161d;--bg-card: #1c1c26;--bg-card-hover: #22222e;--bg-input: #12121a;--text-primary: #f0f0f5;--text-secondary: #9898a8;--text-muted: #5a5a6e;--border: #2a2a38;--border-hover: #3a3a4a;--success: #52c41a;--success-bg: rgba(82, 196, 26, .1);--error: #ff4d4f;--error-bg: rgba(255, 77, 79, .1);--warning: #faad14;--warning-bg: rgba(250, 173, 20, .1);--info: #1890ff;--info-bg: rgba(24, 144, 255, .1);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 20px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 40px rgba(0, 0, 0, .5);--shadow-glow: 0 0 30px rgba(238, 77, 45, .2)}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.app{min-height:100vh;display:flex;flex-direction:column}.header{padding:20px 32px;background:var(--bg-secondary);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.header-left{display:flex;align-items:center;gap:14px}.header-logo{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:var(--shadow-glow)}.header-title{font-size:1.25rem;font-weight:700;background:linear-gradient(135deg,var(--text-primary),var(--text-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-subtitle{font-size:.75rem;color:var(--text-muted);font-weight:400}.header-right{display:flex;align-items:center;gap:12px}.connection-badge{display:flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--radius-xl);font-size:.8rem;font-weight:600;transition:all .3s ease}.connection-badge.connected{background:var(--success-bg);color:var(--success);border:1px solid rgba(82,196,26,.2)}.connection-badge.disconnected{background:var(--error-bg);color:var(--error);border:1px solid rgba(255,77,79,.2)}.connection-dot{width:8px;height:8px;border-radius:50%;animation:pulse 2s infinite}.connection-badge.connected .connection-dot{background:var(--success);box-shadow:0 0 8px #52c41a80}.connection-badge.disconnected .connection-dot{background:var(--error);box-shadow:0 0 8px #ff4d4f80}.main-content{flex:1;padding:32px;max-width:960px;margin:0 auto;width:100%}.convert-section{animation:fadeInUp .5s ease;margin-bottom:32px}.section-title{font-size:1.1rem;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:10px}.section-title .icon{font-size:1.3rem}.input-group{display:flex;gap:12px}.url-input{flex:1;padding:14px 18px;background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:.95rem;font-family:Inter,sans-serif;outline:none;transition:all .3s ease}.url-input:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-glow)}.url-input::placeholder{color:var(--text-muted)}.convert-btn{padding:14px 28px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;border:none;border-radius:var(--radius-md);font-size:.95rem;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:8px;white-space:nowrap;box-shadow:0 4px 15px #ee4d2d4d;font-family:Inter,sans-serif}.convert-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 25px #ee4d2d66}.convert-btn:active:not(:disabled){transform:translateY(0)}.convert-btn:disabled{opacity:.5;cursor:not-allowed}.convert-btn .spinner{width:16px;height:16px;border:2px solid transparent;border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:32px;animation:fadeInUp .6s ease}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;transition:all .3s ease}.stat-card:hover{border-color:var(--border-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}.stat-card .stat-icon{font-size:1.5rem;margin-bottom:8px}.stat-card .stat-value{font-size:1.8rem;font-weight:800;line-height:1;margin-bottom:4px}.stat-card .stat-label{font-size:.8rem;color:var(--text-muted);font-weight:500}.stat-card.primary .stat-value{color:var(--primary)}.stat-card.success .stat-value{color:var(--success)}.stat-card.warning .stat-value{color:var(--warning)}.stat-card.info .stat-value{color:var(--info)}.history-section{animation:fadeInUp .7s ease}.history-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.clear-btn{padding:8px 16px;background:transparent;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);font-size:.8rem;cursor:pointer;transition:all .3s ease;font-family:Inter,sans-serif}.clear-btn:hover{border-color:var(--error);color:var(--error);background:var(--error-bg)}.history-list{display:flex;flex-direction:column;gap:8px}.history-empty{text-align:center;padding:60px 20px;color:var(--text-muted)}.history-empty .empty-icon{font-size:3rem;margin-bottom:12px;opacity:.5}.history-empty .empty-text{font-size:.95rem;font-weight:500}.history-empty .empty-hint{font-size:.8rem;margin-top:6px;opacity:.7}.link-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px 20px;transition:all .3s ease;animation:slideDown .3s ease}.link-item:hover{border-color:var(--border-hover);background:var(--bg-card-hover)}.link-item-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.link-status{display:flex;align-items:center;gap:6px;font-size:.75rem;font-weight:600;padding:4px 10px;border-radius:var(--radius-sm)}.link-status.pending{background:var(--warning-bg);color:var(--warning)}.link-status.processing{background:var(--info-bg);color:var(--info)}.link-status.completed{background:var(--success-bg);color:var(--success)}.link-status.error{background:var(--error-bg);color:var(--error)}.link-time{font-size:.75rem;color:var(--text-muted)}.link-urls{display:flex;flex-direction:column;gap:8px}.link-url-row{display:flex;align-items:center;gap:10px}.link-url-label{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);min-width:56px}.link-url-value{flex:1;font-size:.85rem;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:Fira Code,Consolas,monospace}.link-url-value.converted{color:var(--success)}.copy-btn{padding:4px 10px;background:transparent;border:1px solid var(--border);border-radius:6px;color:var(--text-muted);font-size:.75rem;cursor:pointer;transition:all .2s ease;font-family:Inter,sans-serif}.copy-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-glow)}.copy-btn.copied{border-color:var(--success);color:var(--success);background:var(--success-bg)}.link-error-msg{font-size:.8rem;color:var(--error);margin-top:8px;padding:8px 12px;background:var(--error-bg);border-radius:var(--radius-sm)}.toast-container{position:fixed;top:20px;right:20px;z-index:1000;display:flex;flex-direction:column;gap:8px}.toast{padding:12px 20px;border-radius:var(--radius-md);font-size:.85rem;font-weight:500;display:flex;align-items:center;gap:8px;animation:slideDown .3s ease;box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.toast.success{background:#52c41a26;border:1px solid rgba(82,196,26,.3);color:var(--success)}.toast.error{background:#ff4d4f26;border:1px solid rgba(255,77,79,.3);color:var(--error)}.toast.info{background:#1890ff26;border:1px solid rgba(24,144,255,.3);color:var(--info)}@media(max-width:640px){.header{padding:16px 20px}.main-content{padding:20px 16px}.input-group{flex-direction:column}.convert-btn{justify-content:center}.stats-grid{grid-template-columns:repeat(2,1fr)}.link-url-row{flex-direction:column;align-items:flex-start}}