:root{--bg: #FAF9F6;--surface: #FFFFFF;--text: #1C1917;--text-secondary: #57534E;--text-muted: #A8A29E;--accent: #EA580C;--accent-hover: #C2410C;--accent-light: #FFF7ED;--border: #E7E5E4;--border-focus: #EA580C;--success: #16A34A;--success-light: #F0FDF4;--danger: #DC2626;--radius: 10px;--radius-sm: 6px;--shadow-sm: 0 1px 2px rgba(28, 25, 23, .05);--shadow: 0 1px 3px rgba(28, 25, 23, .08), 0 1px 2px rgba(28, 25, 23, .04);--shadow-lg: 0 4px 12px rgba(28, 25, 23, .08);--font-display: "Bricolage Grotesque", system-ui, sans-serif;--font-body: "Outfit", system-ui, sans-serif;--transition: .15s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{font-family:var(--font-body);font-size:15px;font-weight:400;line-height:1.6;color:var(--text);background:var(--bg);min-height:100vh}.app-layout{display:flex;flex-direction:column;min-height:100vh}.app-header{padding:16px 24px;display:flex;align-items:center;justify-content:space-between;max-width:640px;margin:0 auto;width:100%}.app-logo{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--text)}.app-logo svg{width:28px;height:28px}.app-logo-text{font-family:var(--font-display);font-weight:800;font-size:20px;letter-spacing:-.02em}.app-logo-text span{color:var(--accent)}.app-nav{display:flex;gap:4px}.app-nav a{font-size:13px;font-weight:500;color:var(--text-secondary);text-decoration:none;padding:6px 12px;border-radius:var(--radius-sm);transition:color var(--transition),background var(--transition)}.app-nav a:hover{color:var(--text);background:#1c19170a}.app-nav a.active{color:var(--accent)}.app-main{flex:1;max-width:640px;margin:0 auto;width:100%;padding:8px 24px 40px}.app-footer{padding:24px;text-align:center;max-width:640px;margin:0 auto;width:100%}.app-footer-text{font-size:12px;color:var(--text-muted);line-height:1.5}.app-footer-text a{color:var(--text-secondary);text-decoration:none}.app-footer-text a:hover{color:var(--accent)}h1,h2,h3{font-family:var(--font-display);font-weight:700;letter-spacing:-.02em;line-height:1.2}.form-field{margin-bottom:16px}.form-label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px;letter-spacing:.01em}.form-textarea{width:100%;padding:14px 16px;font-family:var(--font-body);font-size:15px;line-height:1.6;color:var(--text);background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius);resize:vertical;transition:border-color var(--transition),box-shadow var(--transition);outline:none;min-height:120px}.form-textarea:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #ea580c1a}.form-textarea::placeholder{color:var(--text-muted)}.form-input{width:100%;padding:10px 14px;font-family:var(--font-body);font-size:14px;color:var(--text);background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-sm);transition:border-color var(--transition),box-shadow var(--transition);outline:none}.form-input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #ea580c1a}.form-input::placeholder{color:var(--text-muted)}.form-input-readonly{background:var(--bg);cursor:pointer;font-family:SF Mono,Fira Code,Fira Mono,monospace;font-size:13px;letter-spacing:-.01em}.form-select{width:100%;padding:10px 32px 10px 14px;font-family:var(--font-body);font-size:14px;color:var(--text);background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-sm);outline:none;cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2378716C' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}.form-select:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #ea580c1a}.form-help{font-size:12px;color:var(--text-muted);margin-top:4px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;font-family:var(--font-body);font-size:14px;font-weight:600;line-height:1;border:none;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);text-decoration:none;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow)}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-secondary{background:transparent;color:var(--text-secondary);border:1.5px solid var(--border)}.btn-secondary:hover:not(:disabled){color:var(--text);border-color:var(--text-secondary);background:#1c191705}.btn-success{background:var(--success);color:#fff}.btn-success:hover:not(:disabled){background:#15803d;transform:translateY(-1px);box-shadow:var(--shadow)}.btn-ghost{background:transparent;color:var(--text-secondary);padding:8px 14px}.btn-ghost:hover{color:var(--text);background:#1c19170a}.btn-lg{padding:14px 28px;font-size:15px;border-radius:var(--radius)}.btn-sm{padding:7px 14px;font-size:13px}.form-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:4px}.options-panel{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:16px;animation:slideDown .2s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.options-grid{display:grid;gap:12px}@media(min-width:480px){.options-grid{grid-template-columns:1fr 1fr}}.link-display{text-align:center;padding:20px 0}.link-display-label{font-size:13px;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px}.link-display-input{width:100%;padding:14px 16px;font-family:SF Mono,Fira Code,monospace;font-size:13px;color:var(--accent);background:var(--accent-light);border:1.5px solid rgba(234,88,12,.2);border-radius:var(--radius);text-align:center;cursor:pointer;outline:none;transition:border-color var(--transition)}.link-display-input:hover{border-color:var(--accent)}.link-actions{display:flex;justify-content:center;gap:10px;margin-top:16px}.link-notice{font-size:13px;color:var(--text-muted);margin-top:20px;line-height:1.6}.message-panel{background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.message-panel-header{padding:12px 16px;background:var(--bg);border-bottom:1px solid var(--border);font-size:12px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.06em;display:flex;align-items:center;gap:6px}.message-panel-body{padding:20px}.message-panel-body pre{font-family:var(--font-body);font-size:15px;line-height:1.7;white-space:pre-wrap;word-break:break-word;color:var(--text)}.message-panel-footer{padding:12px 16px;border-top:1px solid var(--border);display:flex;justify-content:center}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--success);display:inline-block;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.view-prompt{text-align:center;padding:40px 0 20px}.view-prompt-icon{width:48px;height:48px;margin:0 auto 16px;background:var(--accent-light);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--accent)}.view-prompt p{color:var(--text-secondary);margin-bottom:24px;font-size:15px}.destroyed-notice{text-align:center;padding:32px 0}.destroyed-notice p{font-size:13px;color:var(--text-muted);margin-bottom:16px}.error-page{text-align:center;padding:60px 0}.error-page h2{font-size:72px;color:var(--border);margin-bottom:8px}.error-page p{color:var(--text-muted);margin-bottom:24px}.alert{padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;margin-bottom:12px}.alert-warning{background:#fef3c7;color:#92400e;border:1px solid #FDE68A}.alert-danger{background:#fee2e2;color:#991b1b;border:1px solid #FECACA}.seo-section{margin-top:48px;padding-top:32px;border-top:1px solid var(--border)}.seo-section h2{font-size:22px;margin-bottom:16px;color:var(--text)}.seo-section h3{font-size:16px;margin-top:24px;margin-bottom:8px;color:var(--text)}.seo-section p{color:var(--text-secondary);font-size:14px;line-height:1.7;margin-bottom:12px}.features-grid{display:grid;grid-template-columns:1fr;gap:16px;margin:24px 0}@media(min-width:480px){.features-grid{grid-template-columns:1fr 1fr}}.feature-card{padding:20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);transition:border-color var(--transition)}.feature-card:hover{border-color:var(--text-muted)}.feature-card-icon{font-size:20px;margin-bottom:8px}.feature-card h4{font-family:var(--font-display);font-size:14px;font-weight:700;margin-bottom:4px;color:var(--text)}.feature-card p{font-size:13px;color:var(--text-muted);margin:0;line-height:1.5}.about-page{padding:20px 0}.about-page h1{font-size:32px;margin-bottom:8px}.about-page .subtitle{color:var(--text-secondary);font-size:16px;margin-bottom:32px}.about-section{margin-bottom:32px}.about-section h2{font-size:20px;margin-bottom:12px}.about-section p{color:var(--text-secondary);font-size:15px;line-height:1.7;margin-bottom:12px}.about-section ul{list-style:none;padding:0}.about-section li{position:relative;padding-left:20px;color:var(--text-secondary);font-size:15px;line-height:1.7;margin-bottom:6px}.about-section li:before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;background:var(--accent);border-radius:50%}.step-list{counter-reset:step}.step-list li{padding-left:32px}.step-list li:before{content:counter(step);counter-increment:step;position:absolute;left:0;top:2px;width:20px;height:20px;background:var(--accent);color:#fff;border-radius:50%;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}@media(max-width:480px){.app-header{padding:12px 16px}.app-main{padding:8px 16px 32px}.form-actions{flex-direction:column-reverse}.form-actions .btn{width:100%}.link-actions{flex-direction:column}.link-actions .btn{width:100%}}