:root{--navy:#153452;--blue:#1475ad;--blue-strong:#0e679e;--cyan:#dff7fb;--bg:#f6faff;--muted:#557184;--line:#c9e1ed;--gold:#b77d20;--rainbow:linear-gradient(90deg,#63c8ec,#8b9bea,#d797c7,#f0ad8d,#edcf72);--shadow:0 15px 38px rgba(21,52,82,.07)}*{box-sizing:border-box}[hidden]{display:none!important}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--navy);font-family:Arial,Helvetica,sans-serif}button,input,textarea{font:inherit}.research-header{height:78px;display:flex;align-items:center;gap:24px;padding:0 max(22px,calc((100vw - 1180px)/2));background:#fff;border-bottom:1px solid var(--line);position:relative}.research-header:after{content:"";position:absolute;right:0;bottom:-3px;left:0;height:3px;background:var(--rainbow)}.back-link{color:var(--muted);text-decoration:none;font-size:13px}.research-brand{display:flex;align-items:center;gap:10px;margin-right:auto;color:var(--navy);text-decoration:none;font-weight:800;font-size:18px}.research-brand img{width:92px;height:56px;object-fit:contain}.hub-button,.quiet-action{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 16px;border-radius:11px;text-decoration:none;border:1px solid var(--line);background:#fff;color:var(--blue);font-weight:800;font-size:12px;cursor:pointer}.hub-button:hover,.quiet-action:hover{border-color:#9dcfe1;transform:translateY(-1px)}.research-main{width:min(1120px,calc(100% - 40px));margin:auto;padding:42px 0 64px}.research-hero{max-width:780px}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid #d9d8ef;border-radius:30px;background:linear-gradient(90deg,#e8f9fb,#f3eefc,#fff0e6);color:var(--blue);font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.hero-badge span{font-size:16px}.eyebrow{margin:20px 0 8px;color:var(--blue);font-size:10px;font-weight:800;letter-spacing:.18em;text-transform:uppercase}.research-hero h1{margin:0;font-size:clamp(41px,6.2vw,66px);line-height:1;letter-spacing:-.065em}.research-hero h1 em{font-family:Georgia,serif;font-weight:400;color:var(--blue)}.hero-copy{max-width:680px;margin:18px 0;color:var(--muted);font-size:16px;line-height:1.5}.research-trust{display:flex;gap:12px;max-width:680px;padding:13px 15px;border:1px solid #d8e6ea;border-radius:14px;background:linear-gradient(110deg,#e6f9fb,#f2effb,#fff2e7);color:var(--muted);font-size:11px;line-height:1.5}.research-trust>span:first-child{color:var(--blue);font-size:18px}.research-trust b{color:var(--navy)}.research-tabs{display:flex;gap:5px;margin-top:35px;padding:5px;border:1px solid var(--line);border-radius:15px;background:#fff;box-shadow:var(--shadow);position:sticky;top:8px;z-index:4}.research-tab{flex:1;min-height:44px;border:0;border-radius:10px;background:transparent;color:var(--muted);font-size:12px;font-weight:800;cursor:pointer}.research-tab 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h3{margin:0;font-size:16px;letter-spacing:-.03em}.period-pill,.pro-pill,.community-badge{padding:6px 9px;border-radius:20px;background:var(--cyan);color:var(--blue);font-size:9px;font-weight:800;white-space:nowrap}.highlight-card:nth-child(2) .period-pill{background:#f0eafb;color:#7c61b1}.highlight-card:nth-child(3) .period-pill{background:#fff1cf;color:#a06b13}.highlight-content{margin-top:20px}.highlight-paper-title{margin:0;font-size:16px;line-height:1.28}.highlight-paper-meta{margin:8px 0 0;color:var(--muted);font-size:10px;line-height:1.45}.highlight-paper-copy{margin:13px 0 0;color:var(--muted);font-size:11px;line-height:1.55}.highlight-paper-link{display:inline-block;margin-top:14px;color:var(--blue);font-size:10px;font-weight:800;text-decoration:none}.highlight-paper-link:hover{text-decoration:underline}.highlight-state{padding:16px;border:1px dashed var(--line);border-radius:11px;color:var(--muted);font-size:11px;line-height:1.5}.research-controls{padding:19px;border:1px solid var(--line);border-radius:17px;background:#fff;box-shadow:var(--shadow)}.pro-pill.pro{background:#fff1c9;color:#a06b13}.search-row{display:flex;gap:9px;margin-top:16px}.search-row input{min-height:48px;flex:1;padding:0 14px;border:1px solid var(--line);border-radius:10px;font-size:13px;outline:0}.search-row input:focus,.forum-compose input:focus,.forum-compose textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #e0f4fa}.search-row button{min-height:48px;padding:0 16px;border:1px solid var(--navy);border-radius:10px;background:var(--navy);color:#fff;font-weight:800;font-size:12px;cursor:pointer}.search-row button span{margin-left:8px;color:#bff4ff}.search-row button[aria-busy=true]{opacity:.7;cursor:wait}.search-hint{margin:9px 0 0;color:var(--muted);font-size:10px}.topic-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:15px}.topic-grid button{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:7px;min-height:74px;padding:10px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--navy);text-align:left;cursor:pointer;transition:.18s ease}.topic-grid button:hover{border-color:#9dcfe1;transform:translateY(-1px)}.topic-grid b,.topic-grid small{display:block}.topic-grid b{font-size:10px;line-height:1.25}.topic-grid small{margin-top:4px;color:var(--muted);font-size:8px;line-height:1.3}.topic-icon{display:grid;place-items:center;width:27px;height:27px;border-radius:9px;font-weight:800}.topic-icon.cyan{background:#def7fb;color:#0d9bb0}.topic-icon.blue{background:#e3effc;color:#3378c5}.topic-icon.rose{background:#fdebf1;color:#bd6687}.topic-icon.purple{background:#f0eafb;color:#8764bd}.topic-icon.gold{background:#fff2ce;color:#b77d20}.topic-arrow{color:var(--blue);font-size:14px}.research-meta{display:flex;align-items:end;justify-content:space-between;gap:20px;margin:38px 0 14px}.research-meta h2{margin:0;font-size:26px;letter-spacing:-.05em}.research-meta p:not(.eyebrow){margin:0;color:var(--muted);font-size:10px}.research-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.paper-card{display:flex;flex-direction:column;min-height:280px;padding:17px;border:1px solid var(--line);border-radius:15px;background:#fff;box-shadow:0 8px 26px rgba(21,52,82,.05)}.paper-card .paper-label{color:var(--gold);font-size:9px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.paper-card h3{margin:9px 0 8px;font-size:15px;line-height:1.3}.paper-card .paper-meta{color:var(--muted);font-size:10px;line-height:1.45}.paper-card p{display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;overflow:hidden;margin:13px 0;color:var(--muted);font-size:11px;line-height:1.55}.paper-card a{margin-top:auto;color:var(--blue);font-size:10px;font-weight:800;text-decoration:none}.paper-card a:hover{text-decoration:underline}.paper-card .oa{display:inline-block;margin-left:6px;padding:3px 6px;border-radius:5px;background:#e2f7ef;color:#16825f;font-size:8px}.state-card{grid-column:1/-1;padding:24px;border:1px dashed var(--line);border-radius:13px;text-align:center;color:var(--muted);font-size:12px;line-height:1.5}.state-card.error{background:#fff8f4;border-color:#f1d6c3}.research-community{padding:19px;border:1px solid #d9d8ef;border-radius:17px;background:linear-gradient(110deg,#fff,#edfbfb,#f8f0ff,#fff1e7);box-shadow:var(--shadow)}.community-badge{background:#fff;color:#7c61b1;border:1px solid #e0d7f0}.discussion-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}.discussion-card{padding:14px;border:1px solid #d8e3ed;border-radius:13px;background:rgba(255,255,255,.78)}.discussion-card .discussion-topic{color:var(--blue);font-size:9px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.discussion-card h3{margin:8px 0 7px;font-size:14px;line-height:1.3}.discussion-card p{margin:0;color:var(--muted);font-size:11px;line-height:1.5}.discussion-card button{margin-top:13px;border:0;background:none;color:var(--blue);font-size:10px;font-weight:800;cursor:pointer;padding:0}.forum-compose{display:grid;grid-template-columns:1fr 1fr;gap:8px 12px;margin-top:15px;padding:16px;border:1px solid #d8e3ed;border-radius:13px;background:rgba(255,255,255,.78)}.forum-compose>div{grid-column:1/-1}.forum-compose h3{margin:0;font-size:17px}.compose-note{margin:6px 0 2px;color:var(--muted);font-size:10px;line-height:1.45}.forum-compose label{color:var(--muted);font-size:10px;font-weight:800}.forum-compose input,.forum-compose textarea{width:100%;padding:10px 11px;border:1px solid var(--line);border-radius:9px;background:#fff;font-size:12px;outline:0}.forum-compose input{grid-column:1/-1}.forum-compose textarea{grid-column:1/-1;resize:vertical}.compose-actions{display:flex;align-items:center;gap:12px;grid-column:1/-1}.primary-discussion-button{min-height:39px;padding:0 13px;border:0;border-radius:9px;background:var(--navy);color:#fff;font-size:10px;font-weight:800;cursor:pointer}.compose-actions span{color:var(--muted);font-size:9px}.research-method{display:flex;gap:13px;margin-top:31px;padding:18px;border:1px solid var(--line);border-radius:15px;background:linear-gradient(110deg,#fff,#e9fbfc,#f5effc,#fff0e7)}.method-icon{display:grid;place-items:center;width:30px;height:30px;flex:0 0 auto;border-radius:9px;background:#d8f5e9;color:#178a68;font-weight:800}.research-method h2{margin:0;font-size:19px;letter-spacing:-.03em}.research-method p{max-width:800px;margin:8px 0 0;color:var(--muted);font-size:11px;line-height:1.55}.source-note a{color:var(--blue);font-weight:800}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0)}
@media(max-width:940px){.topic-grid{grid-template-columns:repeat(3,1fr)}.research-grid{grid-template-columns:repeat(2,1fr)}.highlight-grid{grid-template-columns:1fr 1fr}.highlight-card:last-child{grid-column:1/-1}.discussion-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.research-header{height:70px;padding:0 13px;gap:10px}.back-link span{display:none}.research-brand{font-size:15px}.research-brand img{width:82px;height:49px}.hub-button{padding:0 10px;font-size:10px}.research-main{width:calc(100% - 26px);padding:32px 0 48px}.research-hero h1{font-size:43px}.hero-copy{font-size:14px}.research-tabs{top:5px;margin-top:28px}.research-tab{font-size:10px}.research-tab span{margin-right:3px}.panel-heading,.control-heading,.community-heading{display:block}.panel-heading h2,.control-heading h2,.community-heading h2{font-size:23px}.quiet-action{margin-top:13px}.highlight-grid,.research-grid,.discussion-grid{grid-template-columns:1fr}.highlight-card:last-child{grid-column:auto}.highlight-card{min-height:0}.search-row{display:block}.search-row input,.search-row button{width:100%}.search-row button{margin-top:8px}.topic-grid{grid-template-columns:1fr 1fr}.topic-grid button{min-height:82px}.research-meta{display:block}.research-meta p:not(.eyebrow){margin-top:7px}.paper-card{min-height:0}.research-community{padding:16px}.community-badge{display:inline-flex;margin-top:12px}.forum-compose{display:block}.forum-compose label{display:block;margin-top:11px}.forum-compose input,.forum-compose textarea{margin-top:5px}.compose-actions{display:block;margin-top:13px}.compose-actions span{display:block;margin-top:8px}.research-method{align-items:flex-start}.research-method h2{font-size:17px}}
.research-brand img { width: 112px; height: 64px; }
@media (max-width: 600px) {
  .research-brand img { width: 100px; height: 54px; }
}
/* Pro is functional, not a separate gold visual theme. Keep every status and
   research label within the canonical blue/cyan DoctorAI system. */
.pro-pill.pro { background: #e5f7fb; color: #0e679e; }
.topic-icon.gold { background: #e5f7fb; color: #0e679e; }
.paper-card .paper-label { color: #0e679e; }
.highlight-card:nth-child(2) .period-pill { background: #eceffd; color: #4d4d94; }
.highlight-card:nth-child(3) .period-pill { background: #e5f7fb; color: #0e679e; }
:where(a,button,input,textarea):focus-visible{outline:3px solid rgba(25,189,219,.62);outline-offset:3px}
.research-tab,.search-row button,.topic-grid button,.primary-discussion-button,.quiet-action{min-height:46px}
@media(max-width:600px){.research-tab,.search-row button,.topic-grid button,.primary-discussion-button,.quiet-action{min-height:48px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}
.research-method .research-method-cta{margin-top:14px;min-height:48px;background:var(--navy);border-color:var(--navy);color:#fff}
.research-method .research-method-cta:hover{background:var(--blue-strong);border-color:var(--blue-strong)}
@media(max-width:600px){.research-method .research-method-cta{width:100%}}