:root{--bg-color: #0f172a;--bg-color-light: #1e293b;--text-color: #f8fafc;--text-muted: #94a3b8;--primary: #3b82f6;--primary-hover: #2563eb;--secondary: #475569;--secondary-hover: #334155;--danger: #ef4444;--danger-hover: #dc2626;--border-color: #334155;--radius: 8px;--radius-lg: 16px;--shadow: 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);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-color);color:var(--text-color);line-height:1.5;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}button{font-family:inherit;cursor:pointer;border:none;background:none}input,textarea,select{font-family:inherit;background-color:var(--bg-color);border:1px solid var(--border-color);color:var(--text-color);border-radius:var(--radius);padding:.75rem 1rem;font-size:.95rem;outline:none;transition:border-color .2s,box-shadow .2s;width:100%}input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #3b82f633}.app-container{display:flex;flex-direction:column;min-height:100vh}.app-header{padding:1.25rem 2rem;background-color:#1e293bcc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:10}.app-header h1{font-size:1.25rem;font-weight:600;background:linear-gradient(to right,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.app-main{flex:1;padding:2rem;max-width:1200px;margin:0 auto;width:100%;display:flex;flex-direction:column}.btn-primary{background:linear-gradient(135deg,var(--primary),#8b5cf6);color:#fff;padding:.75rem 1.25rem;border-radius:var(--radius);font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;transition:transform .2s,box-shadow .2s,opacity .2s}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px #3b82f666;opacity:.9}.node-id-badge{background-color:var(--primary);color:#fff;padding:.15rem .5rem;border-radius:4px;font-size:.8rem;font-weight:500;vertical-align:middle}.node-id-badge.clickable{cursor:text}.node-id-badge.clickable:hover{background-color:var(--primary-hover)}.node-id-input{background-color:#0003;color:var(--primary);border:1px solid var(--primary);padding:.15rem .5rem;border-radius:4px;font-size:.9rem;font-weight:500;font-family:inherit;width:150px;outline:none}.node-id-input:focus{box-shadow:0 0 0 2px #8b5cf64d}.btn-secondary{background-color:var(--secondary);color:#fff;padding:.75rem 1.25rem;border-radius:var(--radius);font-weight:500;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;transition:background-color .2s}.btn-secondary:hover{background-color:var(--secondary-hover)}.btn-secondary.btn-small{padding:.5rem .75rem;font-size:.875rem}.btn-icon{display:inline-flex;align-items:center;justify-content:center;padding:.5rem;border-radius:var(--radius);color:var(--text-muted);transition:all .2s}.btn-icon:hover{background-color:var(--bg-color-light);color:var(--text-color)}.btn-icon.danger:hover{background-color:#ef44441a;color:var(--danger)}.stories-list-container .header-actions{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.stories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}.story-card{background:var(--bg-color-light);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:1.5rem;display:flex;flex-direction:column;gap:1rem;transition:transform .3s cubic-bezier(.4,0,.2,1),box-shadow .3s}.story-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary)}.story-card-icon{width:48px;height:48px;background:rgba(59,130,246,.1);color:var(--primary);border-radius:12px;display:flex;align-items:center;justify-content:center}.create-story-card{background:var(--bg-color-light);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:1.5rem;margin-bottom:2rem;display:flex;flex-direction:column;gap:1rem;animation:slideDown .3s ease-out}.card-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:.5rem}.story-editor-container{display:flex;flex-direction:column;flex:1}.story-editor-header{margin-bottom:1.5rem}.back-link{display:inline-flex;align-items:center;gap:.5rem;color:var(--text-muted);margin-bottom:1rem;transition:color .2s}.back-link:hover{color:var(--primary)}.story-layout{display:flex;flex:1;gap:2rem;min-height:0}.nodes-sidebar{width:300px;background:var(--bg-color-light);border:1px solid var(--border-color);border-radius:var(--radius-lg);display:flex;flex-direction:column;overflow:hidden}.sidebar-header{padding:1rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.nodes-list{list-style:none;overflow-y:auto;flex:1}.node-list-item{padding:1rem;border-bottom:1px solid var(--border-color);cursor:pointer;transition:background-color .2s;display:flex;flex-direction:column;gap:.25rem}.node-list-item:hover{background-color:#ffffff08}.node-list-item.active{background-color:#3b82f61a;border-left:3px solid var(--primary)}.node-id-label{font-size:.75rem;font-family:monospace;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.node-text-preview{font-size:.95rem;color:var(--text-color)}.node-list-item.active .node-text-preview{color:var(--primary)}.node-editor-area{flex:1;background:var(--bg-color-light);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow-y:auto;padding:2rem}.empty-editor{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-muted)}.editor-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.editor-header h3{display:flex;align-items:center;gap:.75rem}.node-id-badge{font-size:.75rem;font-family:monospace;background-color:var(--bg-color);color:var(--text-muted);padding:.25rem .5rem;border-radius:var(--radius);border:1px solid var(--border-color)}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--text-muted)}.media-group .media-input-row{display:flex;align-items:center;gap:1rem;margin-bottom:1rem}.url-input-container{position:relative;flex:1}.url-input-container .input-icon{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:var(--text-muted)}.url-input-container input{padding-left:2.75rem}.or-divider{color:var(--text-muted);font-size:.875rem;font-weight:600}.media-preview{position:relative;display:inline-block;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border-color)}.media-preview img{max-width:100%;max-height:200px;display:block;object-fit:cover}.btn-remove-media{position:absolute;top:.5rem;right:.5rem;background:rgba(0,0,0,.6);color:#fff;border-radius:50%;padding:.25rem;display:flex;transition:background .2s}.btn-remove-media:hover{background:var(--danger)}.section-header{display:flex;justify-content:space-between;align-items:center;margin:2rem 0 1rem}.choices-list{display:flex;flex-direction:column;gap:1rem}.choice-editor-card{background:rgba(0,0,0,.2);border:1px solid var(--border-color);border-radius:var(--radius);padding:1rem}.choice-header{display:flex;gap:1rem;margin-bottom:1rem}.choice-text-input{flex:1;background:var(--bg-color-light)}.choice-target-row{display:flex;align-items:center;gap:1rem}.target-select-wrapper{position:relative;flex:1}.target-select-wrapper .input-icon{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:var(--text-muted)}.target-select{padding-left:2.75rem;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--bg-color-light) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") no-repeat right 1rem center}.mobile-only{display:none}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.app-main{padding:1rem}.story-layout{flex-direction:column}.nodes-sidebar{width:100%;height:100%}.node-editor-area{padding:1rem;height:100%}.hide-on-mobile{display:none!important}.mobile-only{display:inline-flex}.media-input-row,.choice-target-row{flex-direction:column;align-items:stretch}.or-divider{text-align:center;margin:.5rem 0}}.elegant-toast{position:fixed;bottom:2rem;left:50%;transform:translate(-50%);background-color:var(--primary);color:#fff;padding:.75rem 1.5rem;border-radius:9999px;font-size:1rem;font-weight:500;box-shadow:0 4px 6px #0000004d;z-index:1000;animation:fadeInOut 2.5s ease-in-out forwards}@keyframes fadeInOut{0%{opacity:0;transform:translate(-50%,10px)}10%{opacity:1;transform:translate(-50%)}90%{opacity:1;transform:translate(-50%)}to{opacity:0;transform:translate(-50%,-10px)}}.playthrough-container{max-width:800px;margin:0 auto;padding:0;flex:1;width:100%;box-sizing:border-box;display:flex;flex-direction:column}.landing-screen,.error-screen{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.landing-screen form{margin-bottom:10vh}.landing-screen h2{font-size:4rem;margin-bottom:1.5rem;font-weight:800;color:var(--text-color);line-height:1.2}.landing-screen p{font-size:2rem;margin-bottom:3rem;color:var(--text-color-muted);max-width:800px;line-height:1.5}.landing-screen form{display:flex;flex-direction:column;align-items:center;gap:1.5rem;width:100%;max-width:400px}.landing-screen input{width:100%;padding:1rem 1.5rem;font-size:1.25rem;border:2px solid var(--border-color);border-radius:var(--radius-lg);box-sizing:border-box}.landing-screen button,.error-screen button{width:100%;padding:1.25rem 2.5rem;font-size:1.5rem;font-weight:700;background-color:var(--primary);color:#fff;border:none;border-radius:var(--radius-lg);cursor:pointer;transition:transform .2s,background-color .2s,box-shadow .2s;box-shadow:0 4px 6px #0000001a}.landing-screen button:hover,.error-screen button:hover{background-color:var(--primary-hover, #0056b3);transform:translateY(-2px);box-shadow:0 6px 12px #00000026}.landing-screen button:disabled{background-color:#ccc;cursor:not-allowed;transform:none;box-shadow:none}.error-message,.error-toast{color:var(--danger);background-color:#ef44441a;padding:.75rem 1rem;border-radius:var(--radius);margin-bottom:1rem;border:1px solid rgba(239,68,68,.2);font-weight:500}.story-node{padding:2rem 0;margin-bottom:2rem}.story-media{margin-bottom:1.5rem;text-align:center}.story-media img{max-width:100%;max-height:400px;border-radius:4px;object-fit:cover}.story-text{font-size:1.25rem;line-height:1.6;white-space:pre-wrap;text-align:center}.choices-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}.choice-button{display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:160px;padding:1.5rem;font-size:1.1rem;background:var(--bg-color-light);border:1px solid var(--border-color);color:var(--text-color);border-radius:var(--radius-lg);cursor:pointer;transition:transform .3s cubic-bezier(.4,0,.2,1),box-shadow .3s,border-color .3s;text-align:center}.choice-button:hover:not(:disabled){transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary)}.choice-button:disabled{opacity:.5;cursor:not-allowed}.story-end{text-align:center;padding:2rem 0}.story-end h3{font-size:2rem;margin-bottom:1rem;color:var(--text-color)}.admin-guard-container{display:flex;justify-content:center;align-items:center;flex:1;width:100%;background:var(--bg-color)}.admin-guard-card{background:var(--bg-color-light);padding:40px;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);border:1px solid var(--border-color);width:100%;max-width:400px;text-align:center}.admin-guard-card h2{margin-top:0;margin-bottom:24px;color:var(--text-color);font-family:var(--font-sans);font-size:24px;font-weight:600}.form-group{margin-bottom:20px;text-align:left}.form-group label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-muted)}.form-group input{width:100%;padding:12px 16px;border:1px solid var(--border-color);background-color:var(--bg-color);color:var(--text-color);border-radius:var(--radius);font-size:16px;transition:all .2s ease;box-sizing:border-box}.form-group input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #3b82f633}.error-message{color:var(--danger);background-color:#ef44441a;padding:.75rem 1rem;border-radius:var(--radius);margin-bottom:1rem;border:1px solid rgba(239,68,68,.2);font-weight:500;font-size:14px;text-align:left}.login-button{width:100%;padding:12px;background-color:var(--primary);color:#fff;border:none;border-radius:var(--radius);font-size:16px;font-weight:600;cursor:pointer;transition:background-color .2s ease,transform .1s ease}.login-button:hover{background-color:var(--primary-hover)}.login-button:active{transform:translateY(1px)}