:root{--color-ink: #14141a;--color-ink-muted: #3d3d47;--color-paper: #faf7f2;--color-paper-elevated: #ffffff;--color-stone-200: #e8e4dc;--color-stone-300: #d4cfc4;--color-stone-400: #9c9588;--color-accent: #b45309;--color-accent-hover: #92400e;--color-accent-soft: rgba(180, 83, 9, .12);--color-structural: #0d5c63;--color-structural-soft: rgba(13, 92, 99, .1);--color-danger: #b91c1c;--color-link: #0f766e;--font-display: "Fraunces", "Georgia", serif;--font-ui: "DM Sans", system-ui, sans-serif;--ease-out: cubic-bezier(.22, 1, .36, 1);--ease-out-soft: cubic-bezier(.25, 1, .5, 1);--duration-fast: .18s;--duration-mid: .28s;--duration-slow: .52s;--shadow-sm: 0 1px 2px rgba(20, 20, 26, .06);--shadow-md: 0 8px 30px rgba(20, 20, 26, .08);--shadow-lg: 0 24px 48px rgba(20, 20, 26, .12);--shadow-accent: 0 12px 40px rgba(180, 83, 9, .18)}@keyframes mb-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes mb-fade-up{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@keyframes mb-fade-in{0%{opacity:0}to{opacity:1}}@keyframes mb-modal-in{0%{opacity:0;transform:scale(.96) translateY(8px)}to{opacity:1;transform:scale(1) translateY(0)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}:root{font-family:var(--font-ui);line-height:1.5;font-weight:400;color-scheme:light;color:var(--color-ink);background-color:var(--color-paper);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:var(--color-link);text-decoration:inherit;transition:color var(--duration-fast) var(--ease-out)}a:hover{color:var(--color-structural)}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh;color:var(--color-ink);background-color:var(--color-paper)}h1{font-family:var(--font-display);font-size:3.2em;line-height:1.1;color:var(--color-ink)}input,textarea{color:var(--color-ink);background-color:var(--color-paper-elevated);font-family:var(--font-ui)}input::placeholder,textarea::placeholder{color:var(--color-stone-400)}button{border-radius:10px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:var(--font-ui);background-color:var(--color-stone-200);color:var(--color-ink);cursor:pointer;transition:border-color var(--duration-fast) var(--ease-out),background-color var(--duration-fast) var(--ease-out),transform var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out)}button:hover{border-color:var(--color-stone-300)}button:focus,button:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}#root{width:100vw;height:100vh;margin:0;padding:0;overflow:hidden}.app-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;background:radial-gradient(ellipse 80% 60% at 50% 0%,var(--color-accent-soft),transparent),var(--color-paper);gap:1rem}.app-loading p{color:var(--color-ink-muted);font-size:.9rem;font-family:var(--font-ui);animation:mb-fade-in var(--duration-mid) var(--ease-out) both}.app-loading-spinner{width:36px;height:36px;border:3px solid var(--color-stone-200);border-top-color:var(--color-accent);border-radius:50%;animation:mb-spin .75s linear infinite}.app-container{display:flex;flex-direction:column;width:100%;height:100vh;overflow:hidden;background:var(--color-paper)}.app-header{display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 1.25rem;background:var(--color-paper-elevated);border-bottom:1px solid var(--color-stone-200);flex-shrink:0;box-shadow:var(--shadow-sm)}.app-header-title{font-family:var(--font-display);font-size:1.35rem;font-weight:600;letter-spacing:-.02em;color:var(--color-ink);margin:0}.app-header-signin{padding:.5rem 1.1rem;font-size:.9rem;font-weight:600;font-family:var(--font-ui);color:var(--color-paper-elevated);background:var(--color-ink);border:none;border-radius:10px;cursor:pointer;transition:transform var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out),background-color var(--duration-fast) var(--ease-out)}.app-header-signin:hover{background:var(--color-ink-muted);transform:translateY(-1px);box-shadow:var(--shadow-md)}.app-header-signin:active{transform:translateY(0)}.app-layout{display:flex;flex:1;width:100%;min-height:0}.panel{background:var(--color-paper-elevated);border-right:1px solid var(--color-stone-200);overflow-y:auto}.knowledge-panel{width:300px;min-width:200px;flex-shrink:0}.mindmap-panel{flex:1;position:relative;background:linear-gradient(160deg,#f3f0e8 0%,var(--color-paper) 45%,#eef5f4 100%)}.chat-panel{width:350px;min-width:250px;flex-shrink:0;border-right:none;border-left:1px solid var(--color-stone-200)}.panel-header{padding:1rem 1.1rem;border-bottom:1px solid var(--color-stone-200);font-weight:600;font-family:var(--font-ui);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--color-ink-muted);background:var(--color-paper-elevated)}.panel-content{padding:1rem;height:calc(100% - 60px);overflow-y:auto}.app-header-button{display:flex;align-items:center;gap:6px;padding:8px 12px;background:var(--color-accent);color:#fff;border:none;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;transition:all 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var(--color-stone-200);border-radius:8px;font-size:14px;outline:none;color:#1e293b;background:#fff}.knowledge-dropzone{margin-bottom:16px;border:2px dashed var(--color-stone-200);border-radius:8px;padding:16px;text-align:center;background:var(--color-paper);transition:all .2s}.knowledge-dropzone--dragging{border-color:#3b82f6;background:#eff6ff}.knowledge-dropzone-label{cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:8px}.knowledge-dropzone-text{font-size:13px;color:#64748b}.knowledge-dropzone-hint{font-size:11px;color:#94a3b8}.knowledge-actions{margin-bottom:16px;display:flex;gap:8px;flex-wrap:wrap}.knowledge-btn{display:flex;align-items:center;gap:6px;padding:6px 10px;background:#3b82f6;color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:12px}.knowledge-btn--green{background:#10b981}.knowledge-btn--purple{background:#8b5cf6}.knowledge-btn--amber{background:#f59e0b}.knowledge-item{display:flex;align-items:center;padding:4px 8px;cursor:pointer;border-radius:4px;transition:background-color .2s}.knowledge-item:hover{background:#f1f5f9}.knowledge-item-name{margin-left:8px;font-size:14px}.knowledge-spinner{animation:spin 1s linear infinite}.markdown-message{font-size:14px;line-height:1.5;word-wrap:break-word;color:#1e293b}.markdown-message p{margin:0 0 .75em;color:#1e293b}.markdown-message p:last-child{margin-bottom:0}.markdown-message ul,.markdown-message ol{margin:0 0 .75em;padding-left:1.5em;color:#1e293b}.markdown-message li{margin:.25em 0;color:#1e293b}.markdown-message h1,.markdown-message h2,.markdown-message h3{margin:1em 0 .5em;font-weight:600;color:#0f172a}.markdown-message h1{font-size:1.25em}.markdown-message h2{font-size:1.1em}.markdown-message h3{font-size:1em}.markdown-message pre{margin:.75em 0}.markdown-inline-code{padding:.15em .4em;background:#0f172a14;color:#0f172a;border-radius:4px;font-size:.9em}.markdown-message blockquote{margin:.75em 0;padding-left:1em;border-left:3px solid #cbd5e1;color:#475569}.markdown-message a{color:#2563eb}.markdown-message table{border-collapse:collapse;margin:.75em 0;font-size:.9em;color:#1e293b}.markdown-message th,.markdown-message td{border:1px solid #e2e8f0;padding:.5em .75em;text-align:left;color:#1e293b}.markdown-message th{background:#f1f5f9;font-weight:600;color:#0f172a}.markdown-message strong{font-weight:600;color:#0f172a}.node-detail-panel{background:#fff;border:1px solid var(--color-stone-200);border-radius:12px;box-shadow:0 4px 20px #0000001f;min-width:280px;max-width:360px;overflow:hidden}.node-detail-header{padding:12px 16px;border-bottom:1px solid var(--color-stone-200);display:flex;justify-content:space-between;align-items:center}.node-detail-title{margin:0;font-size:1rem;font-weight:600;color:#1e293b}.node-detail-close{background:none;border:none;padding:4px;cursor:pointer;color:#64748b}.node-detail-body{padding:12px 16px;max-height:65vh;overflow-y:auto}.node-detail-source{font-size:12px;color:#64748b;margin:0 0 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10px;background:#f59e0b;color:#fff;border:none;border-radius:6px;cursor:pointer;display:flex;align-items:center;gap:6px}.node-detail-combine-btn:disabled{background:#e2e8f0;color:#94a3b8;cursor:not-allowed}.node-detail-open-source-btn{padding:8px 12px;background:#f1f5f9;color:#3b82f6;border:1px solid var(--color-stone-200);border-radius:8px;cursor:pointer;font-size:13px}.mindmap-panel-root{width:100%;height:100%;position:relative;display:flex;background:var(--color-paper);font-family:var(--font-ui)}.mindmap-canvas-wrap{flex:1;position:relative;min-width:0}.mindmap-svg{width:100%;height:100%;cursor:grab;font-family:var(--font-ui)}.mindmap-svg .tree-links .link,.mindmap-svg .custom-links path{stroke-linejoin:round}.mindmap-svg:active{cursor:grabbing}.mindmap-toolbar{position:absolute;top:12px;left:12px;right:12px;z-index:10;display:flex;justify-content:space-between;align-items:flex-start;gap:10px;flex-wrap:wrap;pointer-events:none}.mindmap-toolbar>*{pointer-events:auto}.mindmap-toolbar-left,.mindmap-toolbar-right{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.mindmap-toolbar-card{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:8px 12px;background:color-mix(in srgb,var(--color-paper-elevated) 92%,transparent);border:1px solid var(--color-stone-200);border-radius:12px;box-shadow:var(--shadow-md);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.mindmap-hint{font-size:.75rem;color:var(--color-ink-muted);max-width:220px;line-height:1.35;letter-spacing:.01em}@media(max-width:900px){.mindmap-hint{display:none}}.mindmap-btn{padding:.5rem .85rem;font-size:.875rem;font-weight:600;font-family:var(--font-ui);border:none;border-radius:10px;cursor:pointer;transition:background-color var(--duration-fast) var(--ease-out),color var(--duration-fast) var(--ease-out),transform var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out)}.mindmap-btn:active{transform:scale(.98)}.mindmap-btn--primary{background:var(--color-ink);color:var(--color-paper-elevated);display:inline-flex;align-items:center;gap:6px}.mindmap-btn--primary:hover{background:var(--color-accent-hover);box-shadow:var(--shadow-sm)}.mindmap-btn--export{background:var(--color-structural);color:var(--color-paper-elevated)}.mindmap-btn--export:hover{background:color-mix(in srgb,var(--color-structural) 88%,black);box-shadow:var(--shadow-sm)}.mindmap-layout-chevron{font-size:.65rem;opacity:.85}.mindmap-dropdown-wrap{position:relative}.mindmap-dropdown{position:absolute;top:100%;left:0;padding-top:6px;margin-top:0;background:var(--color-paper-elevated);background-clip:padding-box;border:1px solid var(--color-stone-200);border-radius:12px;box-shadow:var(--shadow-lg);z-index:20;min-width:160px;overflow:hidden;animation:mb-modal-in var(--duration-fast) var(--ease-out) both}.mindmap-dropdown-item{display:block;width:100%;padding:10px 14px;text-align:left;font-size:.875rem;font-family:var(--font-ui);border:none!important;border-radius:0!important;border-bottom:1px solid var(--color-stone-200)!important;background:transparent!important;color:var(--color-ink);cursor:pointer;transition:background-color var(--duration-fast) var(--ease-out)}.mindmap-dropdown-item:last-child{border-bottom:none!important}.mindmap-dropdown-item:hover{background:var(--color-paper)!important}.mindmap-dropdown-item.mindmap-dropdown--active{background:var(--color-accent-soft)!important;color:var(--color-accent-hover);font-weight:600}.mindmap-zoom-group{display:flex;gap:4px;align-items:center;padding:4px 6px;background:color-mix(in srgb,var(--color-paper-elevated) 92%,transparent);border:1px solid var(--color-stone-200);border-radius:12px;box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.mindmap-zoom-btn{width:34px;height:34px;display:flex;align-items:center;justify-content:center;background:var(--color-paper-elevated);border:1px solid var(--color-stone-200);border-radius:8px;cursor:pointer;font-size:1.1rem;font-weight:600;color:var(--color-ink);transition:background-color var(--duration-fast) var(--ease-out),border-color var(--duration-fast) var(--ease-out)}.mindmap-zoom-btn:hover{background:var(--color-paper);border-color:var(--color-stone-300)}.mindmap-zoom-pct{min-width:48px;text-align:center;font-size:.7rem;font-weight:600;color:var(--color-ink-muted);letter-spacing:.02em}.mindmap-zoom-fit{padding:6px 10px;font-size:.75rem;font-weight:600;font-family:var(--font-ui);background:var(--color-paper-elevated);border:1px solid var(--color-stone-200);border-radius:8px;cursor:pointer;color:var(--color-ink);transition:background-color var(--duration-fast) var(--ease-out),border-color var(--duration-fast) var(--ease-out)}.mindmap-zoom-fit:hover{background:var(--color-paper);border-color:var(--color-accent);color:var(--color-accent-hover)}.mindmap-stats{position:absolute;bottom:12px;left:12px;z-index:10;display:flex;flex-wrap:wrap;gap:8px 12px;font-size:.65rem;font-weight:500;letter-spacing:.04em;text-transform:uppercase;color:var(--color-stone-400);background:color-mix(in srgb,var(--color-paper-elevated) 94%,transparent);padding:8px 12px;border-radius:10px;border:1px solid var(--color-stone-200);box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.mindmap-stats span{white-space:nowrap}.mindmap-detail-rail{width:320px;flex-shrink:0;border-left:1px solid var(--color-stone-200);padding:14px;overflow-y:auto;background:linear-gradient(180deg,var(--color-paper-elevated) 0%,var(--color-paper) 100%);display:flex;flex-direction:column;box-shadow:-8px 0 24px #14141a0a}.mindmap-detail-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid var(--color-stone-200)}.mindmap-detail-title{font-family:var(--font-display);font-size:1.05rem;font-weight:600;color:var(--color-ink);margin:0;letter-spacing:-.02em}.mindmap-detail-close{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid transparent;border-radius:8px;cursor:pointer;font-size:1.25rem;line-height:1;color:var(--color-stone-400);transition:background-color var(--duration-fast) var(--ease-out),color var(--duration-fast) var(--ease-out),border-color var(--duration-fast) var(--ease-out)}.mindmap-detail-close:hover{background:var(--color-stone-200);color:var(--color-ink);border-color:var(--color-stone-300)}.mindmap-search-overlay{position:absolute;inset:0;z-index:30;display:flex;align-items:flex-start;justify-content:center;padding:64px 16px 16px;background:#14141a59;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.mindmap-search-card{width:min(520px,100%);background:var(--color-paper-elevated);border:1px solid var(--color-stone-200);border-radius:14px;box-shadow:var(--shadow-lg);padding:14px;animation:mb-modal-in var(--duration-fast) var(--ease-out) both}.mindmap-search-title{font-family:var(--font-display);font-weight:600;color:var(--color-ink);margin:0 0 10px;letter-spacing:-.02em}.mindmap-search-input{width:100%;padding:10px 12px;border:1px solid var(--color-stone-200);border-radius:10px;background:var(--color-paper);color:var(--color-ink);font-family:var(--font-ui);font-size:.95rem;outline:none}.mindmap-search-input:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-accent) 18%,transparent)}.mindmap-search-filter{margin-top:10px;display:flex;align-items:center;gap:10px;color:var(--color-ink-muted);font-family:var(--font-ui);font-size:.85rem;-webkit-user-select:none;user-select:none}.mindmap-search-filter input[type=checkbox]{width:16px;height:16px;accent-color:var(--color-accent)}.mindmap-search-results{margin-top:10px;border:1px solid var(--color-stone-200);border-radius:12px;overflow:hidden;max-height:280px;background:var(--color-paper)}.mindmap-search-empty{padding:12px 14px;color:var(--color-ink-muted);font-size:.9rem}.mindmap-search-item{display:block;width:100%;text-align:left;padding:10px 14px;border:none;background:transparent;cursor:pointer;font-family:var(--font-ui);font-size:.92rem;color:var(--color-ink);border-bottom:1px solid var(--color-stone-200)}.mindmap-search-item-title{display:block;font-weight:600}.mindmap-search-item-snippet{display:block;margin-top:3px;font-size:.8rem;color:var(--color-ink-muted);line-height:1.35}.mindmap-search-item:last-child{border-bottom:none}.mindmap-search-item:hover{background:var(--color-paper-elevated)}.mindmap-search-item--active{background:var(--color-accent-soft);color:var(--color-accent-hover);font-weight:600}.mindmap-search-hint{margin-top:10px;color:var(--color-ink-muted);font-size:.8rem;letter-spacing:.01em}.mindmap-search-actions{margin-top:12px;display:flex;justify-content:flex-end}.mindmap-search-close{padding:8px 12px;border-radius:10px;border:1px solid var(--color-stone-200);background:var(--color-paper-elevated);color:var(--color-ink);font-family:var(--font-ui);font-weight:600;cursor:pointer}.mindmap-search-close:hover{background:var(--color-paper);border-color:var(--color-stone-300)}.chat-panel-root{display:flex;flex-direction:column;height:100%}.chat-messages{flex:1;overflow-y:auto;padding:16px 0;display:flex;flex-direction:column;gap:12px}.chat-message{display:flex;gap:8px;align-items:flex-start;max-width:85%}.chat-message--user{align-self:flex-end}.chat-message--bot{align-self:flex-start}.chat-avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.chat-avatar--bot{background:#3b82f6}.chat-avatar--user{background:#10b981}.chat-bubble{padding:12px 16px;border-radius:12px;font-size:14px;line-height:1.4;max-width:100%;overflow:auto}.chat-bubble--user{background:#3b82f6;color:#fff}.chat-bubble--bot{background:#f1f5f9;color:#1e293b}.chat-digest-section{padding:0 16px 8px;border-bottom:1px solid var(--color-stone-200)}.chat-digest-btn{display:flex;align-items:center;gap:8px;padding:8px 16px;background:#8b5cf6;color:#fff;border:none;border-radius:8px;cursor:pointer;font-size:14px}.chat-digest-btn:disabled{cursor:not-allowed;opacity:.7}.chat-input-area{padding:16px;border-top:1px solid var(--color-stone-200);display:flex;gap:8px}.chat-input{flex:1;padding:12px;border:1px solid var(--color-stone-200);border-radius:8px;font-size:14px;outline:none;color:#1e293b;background:#fff}.chat-send-btn{padding:12px;background:#3b82f6;color:#fff;border:none;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center}.chat-send-btn:disabled{background:#94a3b8;cursor:not-allowed}.register-page{min-height:100vh;width:100%;background:radial-gradient(ellipse 100% 80% at 50% -20%,var(--color-accent-soft),transparent 55%),radial-gradient(ellipse 60% 50% at 0% 70%,var(--color-structural-soft),transparent 45%),linear-gradient(180deg,var(--color-paper) 0%,#f2ede4 100%);display:flex;align-items:center;justify-content:center;padding:2rem;box-sizing:border-box;animation:mb-fade-in var(--duration-mid) var(--ease-out) both}.register-card{background:var(--color-paper-elevated);border-radius:16px;border:1px solid var(--color-stone-200);box-shadow:var(--shadow-lg);padding:2.5rem;max-width:440px;width:100%;animation:mb-modal-in var(--duration-slow) var(--ease-out) both}.register-back{display:flex;align-items:center;gap:.5rem;padding:0;background:none;border:none;color:var(--color-stone-400);font-size:.9rem;font-family:var(--font-ui);cursor:pointer;margin-bottom:1.5rem;border-radius:8px;transition:color var(--duration-fast) var(--ease-out),transform var(--duration-fast) var(--ease-out)}.register-back:hover{color:var(--color-ink)}.register-back:active{transform:translate(-2px)}.register-title{font-family:var(--font-display);font-size:1.75rem;font-weight:700;color:var(--color-ink);margin:0 0 .5rem;letter-spacing:-.02em}.register-subtitle{font-size:.95rem;color:var(--color-ink-muted);margin:0 0 1.5rem;line-height:1.55;font-family:var(--font-ui)}.register-options{display:flex;flex-direction:column;gap:1rem}.register-btn{display:flex;align-items:center;justify-content:center;gap:.5rem;width:100%;padding:.9rem 1.25rem;border:none;border-radius:12px;font-size:1rem;font-weight:600;font-family:var(--font-ui);cursor:pointer;transition:background-color var(--duration-fast) var(--ease-out),transform var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out)}.register-btn-primary{background:var(--color-ink);color:var(--color-paper-elevated)}.register-btn-primary:hover{background:var(--color-accent-hover);transform:translateY(-2px);box-shadow:var(--shadow-accent)}.register-btn-secondary{background:var(--color-paper);color:var(--color-ink);border:1px solid var(--color-stone-200)}.register-btn-secondary:hover{background:var(--color-stone-200);transform:translateY(-1px)}.register-btn:active{transform:translateY(0)}.register-divider{text-align:center;color:var(--color-stone-400);font-size:.85rem;margin:.5rem 0;font-family:var(--font-ui)}.register-social-hint{font-size:.85rem;color:var(--color-ink-muted);margin:0;line-height:1.5;font-family:var(--font-ui)}.register-social-list{margin:.5rem 0;padding-left:1.5rem;color:var(--color-ink-muted);font-size:.9rem;font-family:var(--font-ui)}.register-social-list li{display:flex;align-items:center;gap:.5rem;margin:.25rem 0}.register-social-note{font-size:.75rem;color:var(--color-stone-400);margin:0;font-style:italic;font-family:var(--font-ui)}.register-login{text-align:center;margin-top:1.5rem;font-size:.9rem;color:var(--color-ink-muted);font-family:var(--font-ui)}.register-login-link{background:none;border:none;color:var(--color-link);cursor:pointer;font-weight:600;padding:0;font-family:var(--font-ui);transition:color var(--duration-fast) var(--ease-out)}.register-login-link:hover{color:var(--color-structural);text-decoration:underline}.landing{min-height:100vh;width:100%;background:radial-gradient(ellipse 100% 80% at 50% -20%,var(--color-accent-soft),transparent 55%),radial-gradient(ellipse 60% 50% at 100% 60%,var(--color-structural-soft),transparent 45%),linear-gradient(180deg,var(--color-paper) 0%,#f2ede4 100%);display:flex;flex-direction:column;align-items:center;padding:clamp(2rem,6vw,4rem) 1.5rem 3rem;box-sizing:border-box}.landing-hero{text-align:center;margin-bottom:clamp(2.5rem,5vw,4rem);max-width:42rem;animation:mb-fade-up var(--duration-slow) var(--ease-out) both}.landing-title{font-family:var(--font-display);font-size:clamp(2.75rem,8vw,4.25rem);font-weight:700;color:var(--color-ink);margin:0 0 .75rem;letter-spacing:-.03em;line-height:1.05}.landing-tagline{font-size:clamp(1.05rem,2.5vw,1.35rem);color:var(--color-ink-muted);margin:0;font-weight:400;line-height:1.45}.landing-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:clamp(1.25rem,3vw,2rem);max-width:960px;width:100%;margin-bottom:clamp(2.5rem,5vw,4rem)}.landing-feature{background:var(--color-paper-elevated);padding:2rem 1.75rem;border-radius:14px;border:1px solid var(--color-stone-200);box-shadow:var(--shadow-sm);text-align:left;transition:border-color var(--duration-mid) var(--ease-out),box-shadow var(--duration-mid) var(--ease-out),transform var(--duration-mid) var(--ease-out);animation:mb-fade-up var(--duration-slow) var(--ease-out) both}.landing-feature:nth-child(1){animation-delay:80ms}.landing-feature:nth-child(2){animation-delay:.16s}.landing-feature:nth-child(3){animation-delay:.24s}.landing-feature:hover{border-color:var(--color-stone-300);box-shadow:var(--shadow-md);transform:translateY(-3px)}.landing-feature-icon{color:var(--color-structural);margin-bottom:1rem;transition:color var(--duration-fast) var(--ease-out)}.landing-feature:hover .landing-feature-icon{color:var(--color-accent)}.landing-feature h3{font-family:var(--font-display);font-size:1.35rem;font-weight:600;color:var(--color-ink);margin:0 0 .5rem;letter-spacing:-.02em}.landing-feature p{font-size:.95rem;color:var(--color-ink-muted);line-height:1.55;margin:0}.landing-cta{text-align:center;max-width:36rem;animation:mb-fade-up var(--duration-slow) var(--ease-out) both;animation-delay:.3s}.landing-cta-text{font-size:1.05rem;color:var(--color-ink-muted);margin:0 0 1.75rem;line-height:1.55}.landing-signin-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.95rem 2rem;background:var(--color-ink);color:var(--color-paper-elevated);border:none;border-radius:12px;font-size:1rem;font-weight:600;font-family:var(--font-ui);cursor:pointer;transition:background-color var(--duration-fast) var(--ease-out),transform var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out)}.landing-signin-btn:hover{background:var(--color-accent-hover);transform:translateY(-2px);box-shadow:var(--shadow-accent)}.landing-signin-btn:active{transform:translateY(0)}.landing-buttons{display:flex;gap:1rem;flex-wrap:wrap;justify-content:center}.landing-register-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.95rem 2rem;background:transparent;color:var(--color-ink);border:2px solid var(--color-stone-300);border-radius:12px;font-size:1rem;font-weight:600;font-family:var(--font-ui);text-decoration:none;cursor:pointer;transition:border-color var(--duration-fast) var(--ease-out),background-color var(--duration-fast) var(--ease-out),transform var(--duration-fast) var(--ease-out)}.landing-register-btn:hover{border-color:var(--color-structural);background:var(--color-structural-soft);transform:translateY(-2px)}.landing-register-btn:active{transform:translateY(0)}.landing-error{margin-top:1rem;color:var(--color-danger);font-size:.875rem}.user-menu{position:relative}.user-menu-trigger{display:flex;align-items:center;justify-content:center;width:38px;height:38px;padding:0;background:var(--color-paper);border:1px solid var(--color-stone-200);border-radius:50%;cursor:pointer;transition:background-color var(--duration-fast) var(--ease-out),border-color var(--duration-fast) var(--ease-out),transform var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out)}.user-menu-trigger:hover{background:var(--color-paper-elevated);border-color:var(--color-accent);transform:scale(1.04);box-shadow:var(--shadow-sm)}.user-menu-avatar{width:100%;height:100%;border-radius:50%;object-fit:cover}.user-menu-icon-wrap{color:var(--color-stone-400);transition:color var(--duration-fast) var(--ease-out)}.user-menu-trigger:hover .user-menu-icon-wrap{color:var(--color-structural)}.user-menu-dropdown{position:absolute;top:calc(100% + 8px);right:0;min-width:220px;background:var(--color-paper-elevated);border:1px solid var(--color-stone-200);border-radius:12px;box-shadow:var(--shadow-lg);padding:.5rem 0;z-index:1000;animation:mb-modal-in var(--duration-fast) var(--ease-out) both;transform-origin:top right}.user-menu-info{padding:.85rem 1rem;border-bottom:1px solid var(--color-stone-200)}.user-menu-name{display:block;font-size:.9rem;font-weight:600;font-family:var(--font-ui);color:var(--color-ink)}.user-menu-email{display:block;font-size:.75rem;color:var(--color-stone-400);margin-top:.25rem;font-family:var(--font-ui)}.user-menu-signout{display:flex;align-items:center;gap:.5rem;width:100%;padding:.75rem 1rem;font-size:.875rem;color:var(--color-ink-muted);background:none;border:none;cursor:pointer;text-align:left;font-family:var(--font-ui);transition:background-color var(--duration-fast) var(--ease-out),color var(--duration-fast) var(--ease-out)}.user-menu-signout:hover{background:var(--color-accent-soft);color:var(--color-danger)}.signin-panel-backdrop{position:fixed;inset:0;background:#14141a73;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem;animation:mb-fade-in var(--duration-mid) var(--ease-out) both;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.signin-panel{position:relative;background:var(--color-paper-elevated);border-radius:16px;border:1px solid var(--color-stone-200);box-shadow:var(--shadow-lg);padding:1.75rem;min-width:min(100%,340px);max-width:400px;animation:mb-modal-in var(--duration-mid) var(--ease-out) both}.signin-panel-close{position:absolute;top:1rem;right:1rem;padding:.35rem;background:none;border:none;color:var(--color-stone-400);cursor:pointer;border-radius:8px;transition:color var(--duration-fast) var(--ease-out),background-color var(--duration-fast) var(--ease-out)}.signin-panel-close:hover{color:var(--color-ink);background:var(--color-stone-200)}.signin-panel-title{font-family:var(--font-display);font-size:1.5rem;font-weight:600;color:var(--color-ink);margin:0 0 1.25rem;letter-spacing:-.02em}.signin-panel-form{display:flex;flex-direction:column;gap:.85rem}.signin-panel-input{padding:.8rem 1rem;border:1px solid var(--color-stone-200);border-radius:10px;font-size:.95rem;color:var(--color-ink);background-color:var(--color-paper);font-family:var(--font-ui);transition:border-color var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out)}.signin-panel-input::placeholder{color:var(--color-stone-400)}.signin-panel-input:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-soft)}.signin-panel-error{margin:0;font-size:.85rem;color:var(--color-danger);animation:mb-fade-in var(--duration-fast) var(--ease-out) both}.signin-panel-btn{display:flex;align-items:center;justify-content:center;gap:.5rem;width:100%;padding:.85rem 1rem;background:var(--color-ink);color:var(--color-paper-elevated);border:none;border-radius:10px;font-size:.95rem;font-weight:600;font-family:var(--font-ui);cursor:pointer;margin-top:.25rem;transition:background-color var(--duration-fast) var(--ease-out),transform var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out)}.signin-panel-btn:hover{background:var(--color-accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.signin-panel-btn:active{transform:translateY(0)}.signin-panel-btn-auth0{background:var(--color-paper);color:var(--color-ink);border:1px solid var(--color-stone-200)}.signin-panel-btn-auth0:hover{background:var(--color-stone-200);box-shadow:none}.signin-panel-hint{margin:.85rem 0 0;font-size:.8rem;color:var(--color-stone-400)}.signin-panel-divider{margin:1.1rem 0 .5rem;text-align:center;color:var(--color-stone-400);font-size:.85rem;font-family:var(--font-ui)}