:root{--header-height:72px;--bg:#f6fbf8;--surface:#ffffff;--surface-soft:#e9f6f0;--surface-warm:#fffaf1;--ink:#15332a;--muted:#65756f;--line:#cfe2d9;--primary:#087f73;--primary-dark:#075f57;--accent:#f2b84b;--coral:#e96f5b;--blue:#3f7cac;--danger:#c24141;--shadow:0 16px 45px rgba(15,60,50,0.12)}*{box-sizing:border-box}body,html{margin:0;min-height:100%;width:100%;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}:focus-visible{outline:3px solid rgba(8,127,115,.32);outline-offset:2px}.app-shell{min-height:100vh;width:100%}.container{width:min(1440px,calc(100% - 40px));margin:0 auto}.app-container{width:min(1440px,calc(100% - 48px));margin:0 auto}.dashboard-container,.wide-container{width:min(1600px,calc(100% - 48px));margin:0 auto}.topbar{position:-webkit-sticky;position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);background:rgba(246,251,248,.9);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.topbar-inner{min-height:var(--header-height);display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem}.brand-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:white;background:linear-gradient(135deg,var(--primary),#48b87f)}.nav{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}.demo-switcher{display:flex;align-items:center;gap:6px;padding-left:8px;border-left:1px solid var(--line);color:var(--muted);font-size:.82rem;font-weight:800}.demo-switcher a,.demo-switcher summary{border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.72);padding:7px 10px;color:var(--ink);cursor:pointer;list-style:none}.demo-switcher details{position:relative}.demo-menu{position:absolute;right:0;top:38px;z-index:30;display:grid;grid-gap:6px;gap:6px;min-width:190px;padding:10px;border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:var(--shadow)}.demo-gate{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px;padding:12px 14px;border:1px solid #d8e4de;border-radius:8px;background:#fbfefd;color:#38534b;font-size:.9rem}.button,.ghost-button,.nav a,.pill{border-radius:999px;min-height:40px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 14px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-weight:700}.button{color:white;border-color:var(--primary);background:var(--primary)}.button:hover{background:var(--primary-dark)}.ghost-button{background:transparent}.page{padding:32px 0 56px;width:100%}.dashboard-page{background:#f7faf8}.youth-page{background:linear-gradient(180deg,rgba(224,246,237,.72),rgba(246,251,248,0) 360px),var(--bg)}.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);min-height:calc(100vh - 112px);align-items:center;grid-gap:42px;gap:42px;padding-bottom:28px}.hero h1,.page-title h1{margin:0;font-size:clamp(2.25rem,5vw,4.8rem);line-height:.98;letter-spacing:0}.lead{color:var(--muted);font-size:1.08rem;line-height:1.65}.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:28px 0 14px}.section-title h2{margin:0;font-size:1.35rem}.grid{display:grid;grid-gap:16px;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:18px;box-shadow:0 10px 26px rgba(24,66,54,.06)}.card.subtle{background:#f8fcfa;box-shadow:none}.login-card{display:grid;grid-gap:10px;gap:10px;min-height:190px;align-content:start}.login-card:hover{border-color:var(--primary);box-shadow:0 14px 34px rgba(24,66,54,.1)}.login-card .button{align-self:end;margin-top:auto}.chart-card{min-height:340px}.analytics-grid{margin-bottom:18px}.bar-chart{display:grid;grid-gap:14px;gap:14px;margin-top:18px}.bar-group{display:grid;grid-template-columns:84px minmax(0,1fr);grid-gap:12px;gap:12px;align-items:center}.bar-label{color:var(--muted);font-size:.82rem;font-weight:800}.bar-stack{display:grid;grid-gap:6px;gap:6px}.bar-fill{display:flex;align-items:center;justify-content:flex-end;min-width:34px;height:22px;border-radius:6px;padding-right:7px;color:white;font-size:.72rem;font-weight:900}.bar-fill.primary,.legend-dot.primary{background:var(--primary)}.bar-fill.blue,.legend-dot.blue{background:var(--blue)}.bar-fill.gold,.legend-dot.gold{background:var(--accent);color:#553800}.chart-legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:16px;color:var(--muted);font-size:.84rem;font-weight:800}.chart-legend span{display:inline-flex;align-items:center;gap:6px}.legend-dot{width:10px;height:10px;border-radius:999px}.legend-dot.danger{background:var(--danger)}.trend-chart{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:18px;gap:18px;align-items:flex-end;min-height:218px;margin-top:18px;padding:16px 12px 0;border-bottom:1px solid var(--line)}.trend-week{display:grid;grid-gap:8px;gap:8px;justify-items:center;height:100%}.trend-bars{display:flex;align-items:flex-end;gap:8px;height:170px}.trend-bar{width:24px;min-height:6px;border-radius:6px 6px 0 0}.trend-bar.moderate{background:var(--accent)}.trend-bar.high{background:var(--danger)}.language-meter{display:grid;grid-gap:6px;gap:6px;margin:28px 0 18px;padding:18px;border:1px solid var(--line);border-radius:8px;background:#f8fcfa}.language-meter strong{font-size:2rem;line-height:1}.card h2,.card h3{margin:0 0 8px}.muted{color:var(--muted)}.metric{display:grid;grid-gap:8px;gap:8px}.metric-value{font-size:2rem;line-height:1;font-weight:900}.metric-unit{margin-left:3px;color:var(--muted);font-size:.85rem;font-weight:800}.bar{overflow:hidden;height:10px;border-radius:999px;background:#dbe9e3}.bar>span{display:block;height:100%;border-radius:inherit;background:var(--primary)}.chip-row{display:flex;flex-wrap:wrap;gap:8px}.chip{border:1px solid var(--line);border-radius:999px;padding:8px 11px;background:var(--surface-soft);color:var(--ink);font-weight:700;font-size:.88rem}.avatar-stage{position:relative;min-height:420px;border-radius:0;overflow:hidden;background:transparent;border:0;display:grid;place-items:center}.avatar-img,.avatar-stage img,.resi-avatar img{width:min(82%,340px);height:auto;object-fit:contain}.resi-avatar{display:grid;justify-items:center;grid-gap:8px;gap:8px;margin:0}.avatar-stage .resi-avatar{width:100%}.avatar-stage .resi-avatar-xl img{width:min(100%,620px)}.resi-avatar-sm img{width:58px}.resi-avatar-md img{width:min(100%,210px)}.resi-avatar-lg img{width:min(100%,320px)}.resi-avatar-xl img{width:min(100%,430px)}.avatar-missing{max-width:280px;margin:4px auto 0;padding:8px;border:1px dashed #d79c38;border-radius:8px;background:#fff8e8;color:#714500;font-size:.74rem;line-height:1.35}.avatar-scene{display:grid;grid-template-columns:minmax(0,1fr) 260px;grid-gap:24px;gap:24px;align-items:center;padding:24px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.portal-layout{display:grid;grid-template-columns:240px minmax(0,1fr);grid-gap:28px;gap:28px}.sidebar{align-self:start;position:-webkit-sticky;position:sticky;top:calc(var(--header-height) + 18px);display:grid;grid-gap:8px;gap:8px;padding:10px;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.76);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.sidebar a{padding:12px 14px;border-radius:8px;border:1px solid transparent;color:var(--muted);font-weight:800}.sidebar a.active,.sidebar a:hover{background:var(--surface);color:var(--ink);border-color:var(--line)}.chat-shell{display:grid;grid-template-columns:280px minmax(0,1fr) 320px;grid-gap:16px;gap:16px;height:calc(100vh - var(--header-height) - 32px);min-height:680px}.chat-panel,.chat-side-panel{min-height:0;border:1px solid var(--line);border-radius:8px;background:var(--surface);overflow:hidden}.chat-side-panel{display:flex;flex-direction:column;gap:14px;padding:16px;overflow:auto}.chat-panel{display:grid;grid-template-rows:auto minmax(0,1fr) auto}.chat-header{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;border-bottom:1px solid var(--line);background:#fbfefd}.chat-log{min-height:0;height:auto;overflow:auto;display:flex;flex-direction:column;gap:12px;padding:16px;background:linear-gradient(180deg,rgba(233,246,240,.42),rgba(255,255,255,0) 240px),var(--surface)}.message{max-width:min(78%,720px);border-radius:18px;padding:12px 14px;line-height:1.45}.assistant-row{display:flex;align-items:flex-end;gap:10px}.assistant-row .message{max-width:min(78%,680px)}.message.user{align-self:flex-end;color:white;background:var(--primary);border-bottom-right-radius:6px}.message.assistant{align-self:flex-start;background:var(--surface-soft);border-bottom-left-radius:6px}.chat-input{margin-top:0;display:grid;grid-template-columns:minmax(0,1fr) auto;grid-gap:10px;gap:10px;border-top:1px solid var(--line);background:rgba(255,255,255,.96);padding:12px 12px calc(12px + env(safe-area-inset-bottom))}.form-status{margin:0 12px 12px}.button:disabled,.chip:disabled,.ghost-button:disabled,button:disabled{cursor:not-allowed;opacity:.62}.chat-composer{border-top:1px solid var(--line);background:var(--surface)}.chat-composer .chip-row{padding:12px 12px 0}.input,.select,.textarea{width:100%;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);min-height:44px;padding:10px 12px}.textarea{min-height:110px;resize:vertical}.badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 9px;font-weight:900;font-size:.75rem;background:#e8f5ef;color:var(--primary-dark)}.badge.warn{color:#7c4b00;background:#fff1cf}.badge.danger{color:white;background:var(--danger)}.table{width:100%;border-collapse:collapse}.table td,.table th{text-align:left;border-bottom:1px solid var(--line);padding:12px 10px;vertical-align:top}.topic-card{display:grid;grid-template-columns:minmax(0,1fr) 90px;grid-gap:12px;gap:12px;min-height:220px}.topic-card h2{font-size:1.18rem}.learning-tabs{display:grid;grid-gap:14px;gap:14px}.learning-section{border-left:4px solid var(--primary)}.kpi-card{min-height:150px}.kpi-card .metric-value{font-size:1.45rem;line-height:1.15}.filters{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:12px;gap:12px;margin:16px 0}.demo-path .card{min-height:180px}.demo-note{margin-top:16px}@media (max-width:860px){.app-container,.container,.dashboard-container,.wide-container{width:min(100% - 24px,720px)}.chat-shell,.grid-2,.grid-3,.grid-4,.hero,.portal-layout{grid-template-columns:1fr}.hero{min-height:auto}.sidebar{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}.chat-shell{height:calc(100vh - var(--header-height) - 12px);min-height:0}.chat-side-panel{display:none}.chat-shell{grid-template-columns:1fr}.chat-shell>.chat-side-panel:first-child{display:none}.assistant-row .message,.message{max-width:90%}.filters{grid-template-columns:1fr}.demo-switcher{width:100%;order:3;overflow:auto;padding-left:0;border-left:0}.topbar-inner{flex-wrap:wrap;padding:10px 0}.avatar-scene,.topic-card{grid-template-columns:1fr}}