:root{color-scheme:light;--bg: #eef4f8;--bg-strong: #e3edf4;--surface: rgba(255, 255, 255, .9);--surface-strong: #ffffff;--surface-soft: #f7fbfe;--surface-tint: #edf5fa;--ink: #173447;--ink-soft: #274b63;--muted: #617a8d;--primary: #0f6b8f;--primary-strong: #0b5470;--primary-soft: #dceff8;--primary-ring: rgba(15, 107, 143, .18);--navy: #102131;--navy-soft: #183247;--border: rgba(19, 63, 91, .12);--border-strong: rgba(19, 63, 91, .2);--danger: #b94133;--success: #1d8a60;--warning: #b87b23;--shadow-lg: 0 32px 80px rgba(11, 28, 42, .12);--shadow-md: 0 20px 48px rgba(11, 28, 42, .08);--shadow-sm: 0 12px 24px rgba(11, 28, 42, .06);--radius-xl: 32px;--radius-lg: 24px;--radius-md: 18px;--radius-sm: 14px;font-family:Avenir Next,Segoe UI Variable,Segoe UI,sans-serif}*,*:before,*:after{box-sizing:border-box}html,body,#app{min-height:100%}body{margin:0;color:var(--ink);background:radial-gradient(circle at top left,rgba(34,158,188,.14),transparent 30%),radial-gradient(circle at top right,rgba(15,107,143,.12),transparent 28%),linear-gradient(180deg,#f9fcfe 0%,var(--bg) 42%,#e8f0f6 100%);font-family:inherit}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}code{border-radius:999px;padding:.16rem .52rem;background:#0f6b8f17;color:var(--primary-strong)}pre{margin:0}.landing-shell,.auth-page-shell{min-height:100vh;min-height:100svh;padding:1.5rem;position:relative}.landing-topbar,.dashboard-header,.projects-header,.section-header,.snapshot-card-header,.workspace-header-top,.search-row,.dashboard-header-copy,.upload-head,.result-header,.result-actions,.selected-header,.dependency-view-row,.dependency-action-row,.compare-item,.node-row{align-items:center;display:flex;gap:1rem;justify-content:space-between}.brand-inline,.session-bar,.hero-chip-row,.hero-actions,.project-stats,.overview-actions,.import-actions,.tag-list,.mode-toggle,.dashboard-nav,.workspace-nav{align-items:center;display:flex;flex-wrap:wrap;gap:.8rem}.panel-surface,.hero-card,.auth-brand-panel,.auth-card,.project-card,.state-card,.snapshot-card,.response-card,.feature-card,.project-intro-item,.sidebar-brand-card,.sidebar-nav-panel,.sidebar-footer-card{background:var(--surface);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.panel-surface{display:grid;gap:1rem}.panel-surface,.auth-card,.auth-brand-panel,.project-card,.state-card,.snapshot-card,.response-card,.feature-card,.project-intro-item,.sidebar-brand-card,.sidebar-nav-panel,.sidebar-footer-card{padding:1.5rem}.section-kicker,.panel-label,.project-meta,.auth-eyebrow,.brand-mark,.nav-panel-label{color:var(--primary);font-size:.76rem;font-weight:700;letter-spacing:.16em;margin:0 0 .75rem;text-transform:uppercase}.brand-caption,.hero-text,.auth-description,.muted-copy,.state-card p,.feature-card p,.project-intro-item p,.sidebar-brand-card p,.sidebar-footer-card p,.hero-metric span{color:var(--muted);line-height:1.65}.hero-copy h1,.auth-card h1,.projects-header h1,.panel-surface h2,.compare-section h3,.workspace-heading h1,.feature-card h2,.project-card h2,.state-title,.auth-brand-panel h2,.dashboard-sidebar h1{color:var(--ink);font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;letter-spacing:-.03em;line-height:.96;margin:0}.hero-copy h1{font-size:clamp(2.9rem,5vw,5rem);max-width:11ch}.projects-header h1,.workspace-heading h1{font-size:clamp(2.3rem,4vw,3.6rem)}.auth-card h1,.panel-surface h2,.compare-section h3,.feature-card h2,.state-title,.auth-brand-panel h2,.dashboard-sidebar h1{font-size:clamp(1.5rem,2.4vw,2.35rem)}.landing-topbar{margin:0 auto 1.5rem;max-width:1180px}.brand-inline{gap:.9rem}.brand-logo{flex:0 0 auto;height:44px;width:44px}.brand-logo-full{width:min(220px,100%)}.brand-caption{margin:0;max-width:36ch}.hero-card{display:grid;gap:1.5rem;grid-template-columns:minmax(0,1.15fr) minmax(320px,.95fr);margin:0 auto;max-width:1180px;overflow:hidden;padding:1rem}.hero-copy,.hero-panel{display:grid;gap:1.4rem;padding:1.75rem}.hero-copy{align-content:center}.hero-panel{background:linear-gradient(180deg,#f7fbfef5,#edf5faf5),linear-gradient(140deg,#0f6b8f14,#229ebc14)}.landing-hero{background:linear-gradient(135deg,#fffffff0,#f5fbfeeb 54%,#e8f3f9f5)}.hero-chip{border:1px solid rgba(15,107,143,.12);border-radius:999px;color:var(--primary-strong);display:inline-flex;font-size:.8rem;font-weight:700;padding:.5rem .78rem;background:#ffffffbf}.hero-chip-soft{background:#0f6b8f14}.hero-actions{margin-top:.25rem}.hero-metrics,.feature-stack,.project-intro-grid,.metric-strip,.key-value-grid,.project-grid,.overview-grid,.explorer-shell,.ai-grid,.quick-analysis-grid,.detail-columns,.compare-form-grid,.filter-grid{display:grid;gap:1rem}.hero-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}.hero-metric{background:#ffffffad;border:1px solid rgba(15,107,143,.08);border-radius:var(--radius-md);display:grid;gap:.45rem;padding:1rem}.hero-metric strong{font-size:.95rem}.feature-stack{align-content:start}.feature-card{background:#ffffffb8;box-shadow:none}.feature-card h2{font-size:1.45rem;margin-bottom:.65rem}.landing-main{display:grid;gap:1.5rem;margin:1.5rem auto 0;max-width:1180px}.landing-section{display:grid;gap:1.1rem}.landing-story{align-items:start;gap:1.4rem;grid-template-columns:minmax(0,1.3fr) minmax(280px,.9fr)}.landing-story-copy,.landing-story-aside,.section-heading,.landing-flow-card,.landing-question-card,.landing-aside-card,.landing-signal-card{display:grid;gap:.85rem}.landing-story-aside,.landing-flow-grid,.landing-question-grid{gap:1rem}.section-heading h2,.landing-story-copy h2,.landing-flow-card h3{color:var(--ink);font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;letter-spacing:-.03em;line-height:1.02;margin:0}.section-heading h2,.landing-story-copy h2{font-size:clamp(2rem,3.2vw,3.1rem);max-width:16ch}.landing-flow-card h3{font-size:1.45rem}.landing-lead,.landing-aside-text,.landing-flow-card p,.landing-question-card p,.signal-label{margin:0}.landing-lead,.landing-aside-text,.landing-flow-card p,.landing-question-card p{color:var(--muted);line-height:1.7}.landing-aside-card,.landing-flow-card,.landing-question-card{background:#ffffffc2;border:1px solid rgba(15,107,143,.08);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:1.25rem}.landing-aside-card{background:linear-gradient(180deg,#ffffffe6,#f4fafddb)}.landing-flow-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.landing-question-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.landing-question-card{min-height:100%}.flow-step,.signal-label{color:var(--primary);font-size:.76rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase}.landing-signal-stack{align-content:start;grid-template-columns:repeat(2,minmax(0,1fr))}.landing-signal-card{align-content:start;background:#ffffffc7;min-height:100%}.landing-signal-card h2{margin-bottom:0}.auth-backdrop{background:radial-gradient(circle at top left,rgba(34,158,188,.2),transparent 32%),radial-gradient(circle at bottom right,rgba(15,107,143,.14),transparent 30%);top:0;right:0;bottom:0;left:0;position:absolute}.auth-shell{align-items:stretch;display:grid;gap:1.2rem;grid-template-columns:minmax(280px,.9fr) minmax(0,1fr);margin:0 auto;max-width:1100px;position:relative;width:min(1100px,100%)}.auth-page-shell{align-items:center;display:grid}.auth-brand-panel{align-content:start;background:linear-gradient(180deg,#112131f5,#183247f0),linear-gradient(135deg,#229ebc1f,#0f6b8f14);color:#f5fbff;display:grid;gap:1rem;min-height:100%}.auth-brand-panel .brand-logo-full{width:min(240px,100%)}.auth-brand-panel h2,.auth-brand-panel .muted-copy,.auth-brand-panel .auth-points{color:#f5fbff}.auth-brand-panel .muted-copy{opacity:.84}.auth-brand-kicker{color:#93bdd3;font-size:.78rem;font-weight:700;letter-spacing:.16em;margin:0;text-transform:uppercase}.auth-points{display:grid;gap:.85rem;line-height:1.55;margin:0;padding-left:1.2rem}.auth-card{align-content:start;display:grid;gap:1rem;min-height:100%;padding:clamp(1.5rem,2.8vw,2.5rem)}.auth-form,.field,.stack-form,.compare-form-grid,.filter-grid,.create-project-panel,.workspace-page,.workspace-shell,.projects-page,.import-shell,.compare-shell,.ai-shell,.quick-analysis-page,.node-list,.selection-list,.compare-section-list,.compare-item-list,.snapshot-list,.list-block{display:grid;gap:1rem}.field span{color:var(--ink-soft);font-size:.94rem;font-weight:700}.field input,.field select,.field textarea,input[type=file]{background:var(--surface-strong);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--ink);min-height:3.35rem;padding:.88rem 1rem;transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease;width:100%}.field textarea{min-height:8rem;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus,input[type=file]:focus{border-color:#0f6b8f5c;box-shadow:0 0 0 4px var(--primary-ring);outline:0}.checkbox-field{align-items:center;background:#ffffffb3;border:1px solid var(--border);border-radius:var(--radius-sm);display:flex;gap:.7rem;min-height:3.35rem;padding:.85rem 1rem}.checkbox-field input{flex:0 0 auto;height:1rem;width:1rem}.btn{align-items:center;border:0;border-radius:999px;cursor:pointer;display:inline-flex;font-size:.95rem;font-weight:700;gap:.55rem;justify-content:center;min-height:3rem;padding:.88rem 1.25rem;transition:transform .16s ease,box-shadow .16s ease,background .16s ease,border-color .16s ease}.btn:hover{transform:translateY(-1px)}.btn:disabled{cursor:wait;opacity:.72;transform:none}.btn-primary{background:linear-gradient(180deg,#1782ac,#0f6b8f);box-shadow:0 18px 32px #0f6b8f38;color:#fff}.btn-secondary{background:#ffffffd1;border:1px solid rgba(15,107,143,.14);box-shadow:0 10px 20px #0e273a0f;color:var(--primary-strong)}.btn-secondary:hover{background:#fffffff5;border-color:#0f6b8f3d}.auth-submit{width:100%}.auth-alt-link,.back-link{color:var(--primary);display:inline-flex;font-weight:700}.dashboard-shell{display:grid;grid-template-columns:320px minmax(0,1fr);min-height:100vh}.dashboard-sidebar{background:linear-gradient(180deg,#102131fa,#183247fa);color:#f5fbff;display:grid;gap:1.1rem;grid-template-rows:auto 1fr auto;padding:1.4rem}.sidebar-logo-link{align-self:start;display:inline-flex;width:fit-content}.sidebar-logo{width:min(210px,100%)}.sidebar-brand-card,.sidebar-nav-panel,.sidebar-footer-card{background:#ffffff0f;border-color:#ffffff14;box-shadow:none}.sidebar-brand-card h1,.sidebar-brand-card p,.sidebar-footer-card strong,.sidebar-footer-card .muted-copy,.nav-panel-label{color:#f5fbff}.sidebar-brand-card .brand-mark{color:#9bc5d8}.sidebar-footer-card strong{font-size:1rem}.sidebar-footer-card .muted-copy{opacity:.82}.sidebar-footer-card .btn-secondary{width:100%}.dashboard-sidebar .btn-secondary{background:#ffffff14;border-color:#ffffff1a;box-shadow:none;color:#f5fbff}.dashboard-sidebar .btn-secondary:hover{background:#ffffff24;border-color:#ffffff29}.dashboard-nav{display:grid;gap:.7rem;align-content:start}.dashboard-nav-link{border-radius:18px;color:#eff8fd;display:inline-flex;font-weight:700;min-height:3rem;padding:.92rem 1rem;transition:background .16s ease,border-color .16s ease}.dashboard-nav-link:hover{background:#ffffff14}.dashboard-nav-link.is-active{background:linear-gradient(180deg,#1782ac80,#0f6b8f6b);box-shadow:inset 0 0 0 1px #a9dcf02e}.dashboard-main{min-width:0;padding:1.5rem}.dashboard-content{min-width:0}.session-pill,.snapshot-pill{align-items:center;background:#ffffffb8;border:1px solid rgba(15,107,143,.1);border-radius:999px;color:var(--ink-soft);display:inline-flex;font-size:.84rem;font-weight:700;padding:.6rem .9rem;white-space:nowrap}.workspace-header{gap:1.3rem;padding:clamp(1.25rem,2vw,1.6rem)}.workspace-heading{display:grid;gap:.7rem}.workspace-status-card{align-content:start;display:grid;gap:.65rem;justify-items:end}.metric-strip{grid-template-columns:repeat(3,minmax(0,1fr))}.metric-card,.upload-hint,.notice-banner{background:var(--surface-soft);border:1px solid rgba(15,107,143,.1);border-radius:var(--radius-md);padding:1rem}.metric-card{display:grid;gap:.3rem}.metric-card span,.key-value-grid span{color:var(--muted);font-size:.77rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.metric-card strong,.key-value-grid strong{color:var(--ink);font-size:1.1rem}.workspace-nav{border-top:1px solid rgba(15,107,143,.08);padding-top:1rem}.workspace-tab,.mode-toggle-button{background:#ffffffb8;border:1px solid var(--border);border-radius:999px;color:var(--ink-soft);display:inline-flex;font-weight:700;min-height:2.9rem;padding:.78rem 1rem;transition:background .16s ease,border-color .16s ease,color .16s ease}.workspace-tab.is-active,.mode-toggle-button.is-active{background:#0f6b8f1f;border-color:#0f6b8f2e;color:var(--primary-strong)}.notice-banner{color:var(--primary-strong)}.projects-hero{display:grid;gap:1rem;grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr)}.quick-link{justify-self:start}.project-intro-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.project-intro-item strong{display:block;margin-bottom:.5rem}.project-list-panel{margin-top:1rem}.project-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.project-card h2{font-size:1.6rem;margin-bottom:.75rem}.card-action{margin-top:1rem}.overview-grid,.explorer-shell,.ai-grid,.quick-analysis-grid,.detail-columns{grid-template-columns:repeat(2,minmax(0,1fr))}.quick-document-list,.quick-item-list,.attribute-list{display:grid;gap:.75rem}.quick-document-row,.attribute-row{align-items:center;background:#ffffffbd;border:1px solid var(--border);border-radius:var(--radius-md);display:flex;gap:1rem;justify-content:space-between;padding:.95rem 1rem;text-align:left}.quick-document-row{cursor:pointer}.quick-document-row.is-selected,.quick-item-row.is-selected{border-color:#0f6b8f3d;box-shadow:0 0 0 4px #0f6b8f14}.quick-item-row{width:100%}.nested-panel,.subtle-state{background:#f7fbfeeb;box-shadow:none}.state-card{display:grid;gap:.55rem}.state-title{font-size:1.4rem}.snapshot-card{background:#ffffffdb}.snapshot-card h3{font-size:1.2rem;margin:0}.compare-form-grid,.filter-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.compare-submit{align-self:end}.compare-help{margin:0}.node-row,.compare-item{background:#ffffffbd;border:1px solid var(--border);border-radius:var(--radius-md);padding:1rem 1.1rem;text-align:left}.node-row.is-selected{border-color:#0f6b8f3d;box-shadow:0 0 0 4px #0f6b8f14}.detail-panel,.explorer-list-panel{min-width:0}.edge-list,.suggestion-list,.auth-points,.list-block ol,.list-block ul{color:var(--muted);line-height:1.6;margin:0;padding-left:1.15rem}.graph-panel,.response-card,.list-block{margin-top:.5rem}.response-card{display:grid;gap:1rem}.response-pre{background:var(--surface-soft);border:1px solid rgba(15,107,143,.08);border-radius:var(--radius-md);color:var(--ink);font-family:inherit;line-height:1.6;padding:1rem;white-space:pre-wrap}.tag-pill{align-items:center;background:#0f6b8f1a;border-radius:999px;color:var(--primary-strong);display:inline-flex;font-size:.85rem;padding:.44rem .72rem}.compare-section{border-top:1px solid rgba(15,107,143,.08);padding-top:1rem}.form-error{background:#b9413314;border:1px solid rgba(185,65,51,.15);border-radius:var(--radius-md);color:var(--danger);margin:0;padding:.95rem 1rem}.form-note{background:#0f6b8f14;border:1px solid rgba(15,107,143,.12);border-radius:var(--radius-md);color:var(--primary-strong);margin:0;padding:.95rem 1rem}.panel-surface h2,.compare-section h3{line-height:1.05}.search-row{align-items:stretch}.search-row input{flex:1 1 auto}.list-block strong{color:var(--ink)}.selection-list,.compare-item-list,.node-list{align-content:start}.project-stats span,.muted-copy,.project-meta,.section-kicker,.panel-label{overflow-wrap:anywhere}@media(max-width:1120px){.hero-card,.projects-hero,.auth-shell,.dashboard-shell,.overview-grid,.explorer-shell,.ai-grid,.quick-analysis-grid,.detail-columns,.project-intro-grid,.landing-story,.landing-flow-grid,.landing-question-grid{grid-template-columns:1fr}.metric-strip,.hero-metrics{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.landing-signal-stack{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.workspace-status-card{justify-items:start}}@media(max-width:820px){.landing-shell,.auth-page-shell,.dashboard-main{padding:1rem}.hero-copy,.hero-panel,.panel-surface,.auth-card,.auth-brand-panel,.project-card,.state-card,.snapshot-card,.response-card,.feature-card,.project-intro-item,.sidebar-brand-card,.sidebar-nav-panel,.sidebar-footer-card{padding:1.25rem}.dashboard-header,.projects-header,.section-header,.landing-topbar,.workspace-header-top,.snapshot-card-header,.search-row,.node-row,.compare-item{align-items:flex-start;flex-direction:column}.session-bar{justify-content:flex-start}.section-heading h2,.landing-story-copy h2{max-width:none}}@media(max-width:640px){.hero-copy h1{font-size:2.45rem}.projects-header h1,.workspace-heading h1{font-size:2rem}.dashboard-shell{grid-template-columns:1fr}.dashboard-sidebar{height:auto}.compare-form-grid,.filter-grid,.project-grid,.metric-strip,.hero-metrics,.quick-analysis-metrics{grid-template-columns:1fr}.workspace-tab,.mode-toggle-button,.btn{width:100%}.hero-actions,.overview-actions,.import-actions,.workspace-nav,.mode-toggle{display:grid}}.dashboard-nav-link-context{border-style:dashed;font-size:.92rem}.classic-home-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.classic-inner-panel{align-content:start;gap:.9rem}.classic-details-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.classic-graph-controls{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}.classic-graph-canvas{min-height:520px;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--surface-soft);padding:.5rem}.classic-ai-launcher{position:fixed;right:1.4rem;bottom:1.4rem;z-index:50;box-shadow:var(--shadow-md)}.classic-ai-modal-wrap{position:fixed;top:0;right:0;bottom:0;left:0;background:#1021317a;display:grid;place-items:center;z-index:60;padding:1rem}.classic-ai-modal{width:min(760px,100%);max-height:min(88vh,900px);overflow:auto}.classic-ai-messages{display:grid;gap:.8rem;max-height:380px;overflow:auto;padding-right:.2rem}.classic-ai-message{border:1px solid var(--border);border-radius:var(--radius-md);padding:.9rem 1rem;background:var(--surface-soft);display:grid;gap:.55rem}.classic-ai-message.user{background:var(--primary-soft);border-color:#0f6b8f40}@media(max-width:980px){.classic-details-grid{grid-template-columns:minmax(0,1fr)}.classic-graph-canvas{min-height:340px}.classic-ai-launcher{right:1rem;bottom:1rem}}