:root{--canvas: #f4f7f8;--surface: #ffffff;--surface-tint: #eef3f6;--ink: #16242d;--muted: #5a7184;--soft: #84979f;--line: #dde5ea;--blue-900: #00324f;--blue-800: #004972;--blue-700: #0c5d86;--blue-500: #3f7fa0;--blue-300: #9eb4c3;--gold: #c4912f;--font-display: "Bebas Neue", "Arial Narrow", sans-serif;--font-body: "PT Sans", Arial, "Helvetica Neue", Helvetica, ui-sans-serif, system-ui, sans-serif;--r-sm: 10px;--r-md: 16px;--r-lg: 24px;--shadow-sm: 0 1px 3px rgba(0, 50, 79, .08);--shadow-md: 0 16px 32px -12px rgba(0, 50, 79, .22);font-family:var(--font-body);color:var(--ink);background:var(--canvas)}*{box-sizing:border-box}html,body,#root{width:100%;min-height:100%}body{margin:0;min-width:320px;background:var(--canvas);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button,textarea{color:inherit;font:inherit}button{border:0}button:disabled{cursor:default}.app-shell{width:100%;min-height:100vh;padding:0 clamp(20px,5vw,72px) 64px}.app-shell-fallback{display:grid;place-items:center}.empty-state{max-width:760px;padding:40px;border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--shadow-md)}.topbar,.stepper,.stage{max-width:1180px;width:100%;margin:0 auto}.topbar-title-row{display:flex;align-items:center;gap:10px}.info-icon-btn{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;padding:0;border:1px solid rgba(158,180,195,.4);border-radius:50%;background:#ffffff1a;color:var(--blue-300);cursor:pointer;flex-shrink:0;opacity:.7;transition:opacity .15s ease,background-color .15s ease}.info-icon-btn:hover{opacity:1;background:#fff3}.topbar{margin-bottom:20px;padding:14px clamp(24px,4vw,48px) 16px;border-radius:0 0 var(--r-lg) var(--r-lg);background:linear-gradient(135deg,var(--blue-900),var(--blue-700));box-shadow:var(--shadow-md)}.topbar .eyebrow{color:var(--blue-300)}.topbar h1{color:#fff}.eyebrow,.small-label{display:block;margin:0 0 8px;color:var(--blue-700);font-family:var(--font-body);font-weight:700;font-size:.75rem;letter-spacing:.1em;text-transform:uppercase}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3,h4{font-family:var(--font-display);font-weight:400;color:var(--blue-900);letter-spacing:.01em}h1{margin-bottom:0;font-size:clamp(1.6rem,3vw,2.4rem);line-height:1}h2{margin-bottom:16px;font-size:clamp(1.6rem,3.2vw,2.8rem);line-height:1.06}h3{margin-bottom:8px;font-size:clamp(.95rem,1.3vw,1.1rem);line-height:1.2}h4{margin-bottom:6px;font-size:1rem}.stepper{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;margin-bottom:18px;padding:5px;background:var(--surface-tint);border-radius:var(--r-md)}.stepper button{display:flex;align-items:center;gap:10px;min-height:40px;padding:0 14px;border-radius:var(--r-sm);background:transparent;color:var(--muted);cursor:pointer;text-align:left;transition:background-color .15s ease,color .15s ease,box-shadow .15s ease}.stepper button:not(:disabled):hover{color:var(--blue-900)}.stepper button.is-current{background:var(--surface);color:var(--blue-900);font-weight:700;box-shadow:var(--shadow-sm)}.stepper button:disabled{color:var(--blue-300)}.stepper span{color:var(--blue-300);font-family:var(--font-display);font-size:1.05rem;letter-spacing:.02em}.stepper button.is-current span{color:var(--gold)}.stepper button:disabled span{color:var(--line)}.stage{min-height:0}.search-stage{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;min-height:calc(100vh - 180px);padding:32px 0}.mock-search{width:min(840px,100%);opacity:.48}.mock-search-bar{display:flex;align-items:center;gap:12px;padding:14px 20px;border:1.5px dashed var(--blue-300);border-radius:var(--r-lg);background:var(--surface);color:var(--soft);font-size:1.05rem;cursor:not-allowed}.mock-search-bar svg{flex-shrink:0;color:var(--soft)}.mock-search-caption{margin:8px 0 0;text-align:center;color:var(--soft);font-size:.82rem}.use-case-divider{display:flex;align-items:center;width:min(840px,100%);gap:14px}.use-case-divider:before,.use-case-divider:after{content:"";flex:1;height:1px;background:var(--line)}.use-case-divider span{color:var(--soft);font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;white-space:nowrap}.search-box{width:min(840px,100%);padding:clamp(24px,4vw,48px);border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--shadow-md)}.search-box label{display:block;margin-bottom:8px;color:var(--muted);font-size:.9rem;font-weight:700}.search-box textarea{display:block;width:100%;min-height:160px;resize:none;cursor:default;overflow:hidden;padding:16px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--canvas);color:var(--ink);font-size:clamp(.95rem,1.4vw,1.1rem);line-height:1.55}.search-box textarea:focus{outline:2px solid var(--blue-500);outline-offset:1px}.primary-action,.secondary-action{display:inline-flex;align-items:center;min-height:42px;margin-top:16px;padding:0 20px;border:1px solid transparent;border-radius:var(--r-sm);cursor:pointer;font-family:var(--font-body);font-weight:700;font-size:.83rem;letter-spacing:.06em;text-transform:uppercase;transition:background-color .15s ease,color .15s ease,border-color .15s ease}.primary-action{color:#fff;background:var(--blue-800);border-color:var(--blue-800)}.primary-action:hover{background:var(--blue-900);border-color:var(--blue-900)}.secondary-action{border-color:var(--line);color:var(--blue-800);background:var(--surface)}.secondary-action:hover{border-color:var(--blue-500);background:var(--surface-tint)}.selection-stage,.technology-stage{display:grid;gap:24px}.selection-stage{grid-template-columns:minmax(260px,.42fr) minmax(0,1fr)}.technology-stage{grid-template-columns:minmax(300px,.38fr) minmax(0,1fr)}.profile-stage{display:flex;flex-direction:column;gap:16px}.profile-stage>.secondary-action{align-self:flex-start}.profile-stage h2{font-size:clamp(1.1rem,1.8vw,1.6rem);margin-bottom:10px}.profile-intro{width:100%}.profile-intro-body{display:grid;grid-template-columns:1fr 1fr;gap:20px}.profile-lower{display:grid;gap:16px;grid-template-columns:minmax(240px,.34fr) minmax(0,1fr)}.stage-intro{padding-top:6px}.stage-intro p,.profile-section p,.facts dd,.field-detail p{color:var(--muted);font-size:.95rem;line-height:1.56}.benefit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.simple-card,.ranked-card,.application-item{border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);cursor:pointer;text-align:left;transition:border-color .15s ease,box-shadow .15s ease,transform .15s ease}.simple-card{min-height:164px;padding:22px}.simple-card:hover,.ranked-card:hover,.application-item:hover{border-color:var(--blue-300);box-shadow:var(--shadow-md);transform:translateY(-2px)}.application-item.is-selected{border-color:var(--gold);background:var(--surface-tint)}.simple-card span,.rank{display:block;margin-bottom:10px;color:var(--blue-300);font-family:var(--font-display);font-size:1.2rem;letter-spacing:.02em}.simple-card strong,.ranked-card strong{display:block;margin-bottom:8px;font-weight:700;font-size:1rem;line-height:1.28}.simple-card small,.ranked-card small,.ranked-card em,.application-item small,.paper-list small{display:block;color:var(--soft);font-size:.88rem;line-height:1.45}.ranked-list{display:grid;gap:10px}.ranked-card{display:grid;grid-template-columns:46px minmax(0,1fr);gap:12px;padding:16px}.ranked-card em{margin-top:6px;font-style:normal;font-weight:700;color:var(--blue-700)}.profile-facts,.application-panel{min-width:0}.profile-section,.profile-intro-body .profile-section{margin-bottom:0;padding-bottom:0;border-bottom:none}.facts{display:grid;gap:10px;margin:0 0 4px}.facts dt{margin-bottom:3px;color:var(--blue-800);font-size:.76rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.facts dd{margin:0}.profile-facts{padding:16px;border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--shadow-sm)}.profile-facts .eyebrow{margin-bottom:12px}.application-panel{padding:16px;border-radius:var(--r-lg);background:var(--surface-tint)}.application-list{display:grid;gap:6px;margin:8px 0 12px}.application-item{display:grid;grid-template-columns:38px minmax(0,1fr);gap:10px;width:100%;padding:10px 12px}.application-item>span{color:var(--blue-300);font-family:var(--font-display);font-size:1.1rem}.application-item.is-selected>span{color:var(--gold)}.application-item strong{display:block;margin-bottom:3px;font-weight:700;font-size:.9rem}.field-detail{padding-top:14px;border-top:1px solid var(--line)}.paper-list{display:grid;gap:8px;margin-top:14px}.paper-list>span{color:var(--blue-800);font-size:.76rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.paper-list article{padding:12px;border-radius:var(--r-sm);background:var(--surface);box-shadow:var(--shadow-sm)}.paper-list strong{display:block;margin-bottom:4px;font-weight:700;font-size:.9rem;line-height:1.3}.paper-list p{margin:6px 0 0;color:var(--muted);font-size:.88rem;line-height:1.45}.stack-stage{display:flex;flex-direction:column;gap:22px}.stack-header-section{display:grid;grid-template-columns:minmax(260px,.4fr) minmax(0,1fr);gap:24px;align-items:start}.stack-network-svg{width:100%;border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--shadow-sm);padding:12px}.stack-cluster-strip{display:grid;gap:8px;margin-top:18px}.stack-cluster-pill{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:8px;padding:8px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);box-shadow:var(--shadow-sm)}.cluster-id{display:inline-flex;align-items:center;min-height:24px;padding:0 8px;border-radius:4px;color:#fff;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;white-space:nowrap}.cluster-name{color:var(--ink);font-size:.88rem;font-weight:700;line-height:1.3;overflow-wrap:anywhere}.coverage-matrix-wrap{overflow-x:auto}.coverage-matrix{min-width:560px;border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--shadow-sm);overflow:hidden}.matrix-header,.matrix-row{display:grid;grid-template-columns:minmax(180px,1fr) repeat(8,30px) 28px;align-items:center}.matrix-header{padding:8px 14px;background:var(--surface-tint);color:var(--muted);font-size:.74rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.matrix-header span:not(:first-child){text-align:center}.matrix-row{padding:7px 14px;border-top:1px solid var(--line);transition:background-color .1s ease}.matrix-row.is-optimal{background:#eef3f6}.matrix-tech-name{display:flex;align-items:center;gap:6px;font-size:.82rem;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding-right:8px}.matrix-optimal-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--blue-800);flex-shrink:0}.matrix-cell{display:flex;align-items:center;justify-content:center}.matrix-dot{width:10px;height:10px;border-radius:50%;border:1.5px solid var(--line);background:transparent}.matrix-dot.is-covered{background:var(--blue-300);border-color:var(--blue-300)}.matrix-dot.is-stack{background:var(--blue-900);border-color:var(--blue-900)}.matrix-count{text-align:center;font-family:var(--font-display);font-size:1rem;color:var(--blue-500)}.matrix-row.is-optimal .matrix-count{color:var(--blue-900);font-weight:700}.matrix-legend{display:flex;align-items:center;gap:6px;margin:8px 0 0;color:var(--soft);font-size:.78rem}.legend-dot{display:inline-block;width:9px;height:9px;border-radius:50%;border:1.5px solid var(--line);background:transparent;vertical-align:middle}.legend-dot.is-covered{background:var(--blue-300);border-color:var(--blue-300)}.legend-dot.is-stack{background:var(--blue-900);border-color:var(--blue-900)}.stack-cards-section{padding-bottom:8px}.stack-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:12px}.stack-card{border:1px solid var(--line);border-top:3px solid var(--blue-800);border-radius:var(--r-md);background:var(--surface);padding:18px;box-shadow:var(--shadow-sm)}.stack-card-header{display:flex;align-items:flex-start;gap:12px;margin-bottom:12px}.stack-card-index{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:var(--r-sm);color:#fff;font-family:var(--font-display);font-size:1.1rem;flex-shrink:0}.stack-card-header strong{display:block;font-size:.92rem;font-weight:700;line-height:1.3;margin-bottom:4px}.stack-card-cluster{display:grid;gap:6px;margin-top:8px}.stack-card-benefits{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:12px}.benefit-tag{display:inline-block;padding:2px 8px;border-radius:4px;border:1px solid var(--blue-300);background:var(--surface-tint);color:var(--blue-800);font-size:.74rem;font-weight:700;letter-spacing:.04em}.stack-card-body{margin:0;color:var(--muted);font-size:.88rem;line-height:1.52}@media(max-width:900px){.stack-header-section,.stack-cards{grid-template-columns:1fr}}.info-overlay-backdrop{position:fixed;inset:0;background:#00324f73;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:24px;z-index:100}.info-overlay{width:min(700px,94vw);max-height:90vh;display:flex;flex-direction:column;border-radius:var(--r-lg);overflow:hidden;background:var(--surface);box-shadow:var(--shadow-md)}.info-overlay-header{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;padding:20px 24px;border-bottom:1px solid var(--line);background:linear-gradient(135deg,var(--blue-900),var(--blue-700))}.info-overlay-title{margin:0 0 4px;color:#fff;font-family:var(--font-display);font-size:1.6rem;font-weight:400;letter-spacing:.02em}.info-overlay-subtitle{margin:0;color:var(--blue-300);font-size:.82rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.info-close-btn{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border:1px solid rgba(158,180,195,.3);border-radius:50%;background:#ffffff1a;color:var(--blue-300);cursor:pointer;font-size:1.3rem;line-height:1;flex-shrink:0;transition:background-color .15s ease,color .15s ease}.info-close-btn:hover{background:#fff3;color:#fff}.info-overlay-body{padding:22px 24px 28px;overflow-y:auto}.info-overlay-intro{margin:0 0 22px;color:var(--muted);font-size:.9rem;line-height:1.65;border-bottom:1px solid var(--line);padding-bottom:20px}.info-steps{display:grid;gap:18px}.info-step{display:flex;gap:14px;align-items:flex-start}.info-step-num{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:8px;background:var(--blue-800);color:#fff;font-family:var(--font-display);font-size:1rem;flex-shrink:0}.info-step-title{margin:0 0 6px;color:var(--blue-900);font-family:var(--font-body);font-size:.88rem;font-weight:700;letter-spacing:0}.info-step-text{margin:0;color:var(--muted);font-size:.86rem;line-height:1.6}.login-shell{background:linear-gradient(160deg,var(--blue-900) 0%,var(--blue-700) 100%);min-height:100vh}.login-box{width:min(420px,100%);padding:clamp(32px,5vw,52px);border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--shadow-md)}.login-box .eyebrow{color:var(--blue-500)}.login-box h1{margin-bottom:28px}.login-form{display:grid;gap:4px}.login-field{display:grid;gap:6px;margin-bottom:12px}.login-field label{color:var(--muted);font-size:.85rem;font-weight:700}.login-field input{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--canvas);color:var(--ink);font:inherit;font-size:.95rem;transition:border-color .15s ease}.login-field input:focus{outline:2px solid var(--blue-500);outline-offset:1px;border-color:var(--blue-500)}.login-error{margin:2px 0 0;color:#b94040;font-size:.85rem}.login-submit{width:100%;margin-top:18px;justify-content:center}@media(max-width:900px){.stepper,.selection-stage,.technology-stage,.profile-lower,.profile-intro-body,.benefit-grid{grid-template-columns:1fr}.app-shell{padding-inline:18px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;transition-duration:.001ms!important}}