:root{--canvas:#f0fdfa;--surface:#fff;--ink:#12343b;--muted:#49656b;--line:#cce7e3;--pine:#0f766e;--mint:#d1fae5;--teal:#0f766e;--mono:"DM Mono", monospace;--sans:"Inter", sans-serif;--display:"Space Grotesk", sans-serif;--radius-card:18px}*{box-sizing:border-box}html{min-height:100%}body{background:var(--canvas);min-height:100vh;color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;margin:0}a{color:inherit}button{font:inherit}.app-shell{grid-template-columns:260px minmax(0,1fr);gap:clamp(48px,8vw,110px);width:min(1240px,100% - 64px);min-height:100vh;margin:0 auto;display:grid}.sidebar{border-right:1px solid var(--line);min-height:100vh;color:var(--ink);background:0 0;flex-direction:column;padding:32px 0;display:flex}.brand{background:var(--ink);width:42px;height:42px;color:var(--mint);border-radius:13px;place-items:center;font-family:Doto,sans-serif;font-size:24px;font-weight:800;line-height:1;text-decoration:none;transition:transform .2s;display:grid}.brand:hover{transform:translateY(-2px)rotate(-3deg)}.brand span{display:none}.sidebar-caption,.eyebrow,.breadcrumb,.card-number{color:var(--muted);font-family:var(--mono);letter-spacing:.06em;text-transform:uppercase;font-size:10px;font-weight:500;line-height:1.4}.sidebar-caption{margin:58px 0 16px}nav{gap:7px;display:grid}.nav-link{color:var(--muted);font-family:var(--mono);border-radius:8px;padding:10px 12px;font-size:11px;text-decoration:none}.nav-link:hover,.nav-link.active{background:var(--surface);color:var(--ink)}.nav-link.active{box-shadow:2px 0 0 var(--teal)}.sidebar-footer{border-top:1px solid var(--line);width:calc(100% - 22px);color:var(--muted);font-family:var(--mono);margin-top:auto;padding:12px 0;font-size:10px}.status-dot{background:var(--teal);border-radius:99px;width:7px;height:7px;margin-right:7px;display:inline-block}.account-logout-wrap{width:calc(100% - 22px);margin-top:auto}.account-logout{border:1px solid var(--line);width:100%;min-height:45px;color:var(--muted);cursor:pointer;font-family:var(--mono);text-align:left;background:0 0;border-radius:8px;padding:0 12px;font-size:11px}.account-logout:hover{border-color:var(--muted);color:var(--ink)}.account-logout:disabled{cursor:wait;opacity:.6}.account-logout-error{color:#b42318;margin-top:8px;font-size:11px;line-height:1.4;display:block}.main-content{min-width:0}.topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:86px;display:flex}.breadcrumb{color:var(--muted)}.switcher{position:relative}.switcher-trigger{color:var(--ink);cursor:pointer;text-align:left;background:0 0;border:0;align-items:center;gap:12px;padding:0;display:flex}.avatar{background:var(--mint);width:42px;height:42px;color:var(--pine);font-family:var(--display);border-radius:13px;flex:none;place-items:center;font-size:20px;font-weight:600;display:inline-grid}.avatar-small{border-radius:9px;width:32px;height:32px;font-size:15px}.switcher-label{gap:3px;min-width:120px;display:grid}.switcher-label strong{font-family:var(--display);font-size:16px}.switcher-label small{color:var(--muted);font-size:12px}.switcher-trigger>span:last-child{color:var(--muted);font-size:20px;line-height:1}.switcher-menu{z-index:10;border:1px solid var(--line);background:var(--surface);border-radius:14px;width:min(340px,100vw - 40px);padding:12px;position:absolute;top:calc(100% + 10px);right:0;box-shadow:0 18px 45px #12343b24}.switcher-menu .eyebrow{margin:4px 8px 10px;display:block}.switcher-account{background:var(--canvas);width:100%;color:var(--ink);cursor:pointer;text-align:left;border:0;border-radius:9px;align-items:center;gap:10px;padding:10px 8px;display:flex}.switcher-account:hover{outline:2px solid var(--teal);outline-offset:-2px}.switcher-account:disabled{cursor:default;opacity:.65}.switcher-account>span:nth-child(2){flex:1;gap:2px;min-width:0;display:grid}.switcher-account strong,.switcher-account small{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.switcher-account small{color:var(--muted);font-size:11px}.switcher-account em{color:var(--teal);font-family:var(--mono);font-size:10px;font-style:normal}.switcher-add{width:100%;color:var(--ink);font-family:var(--mono);border-radius:8px;margin-top:8px;padding:10px 8px;font-size:11px;text-decoration:none;display:block}.switcher-add:hover{background:var(--canvas);color:var(--teal)}.switcher-message{color:#b42318;margin:8px 7px 0;font-size:11px;line-height:1.4}.content-wrap{align-self:center;padding:60px 0}.intro{margin-bottom:40px}.intro h1{max-width:640px;color:var(--ink);font-family:var(--display);letter-spacing:-.075em;margin:0 0 20px;font-size:clamp(48px,7vw,86px);font-weight:500;line-height:.98}.intro p{max-width:540px;color:var(--muted);margin:0;line-height:1.75}.intro .eyebrow{margin-bottom:18px;display:block}.intro-mark{display:none}.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.feature-card{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);gap:8px;min-height:214px;padding:24px;display:grid}.feature-card.dark{background:var(--pine);border-color:var(--pine);color:#ecfdf5}.feature-card.accent{background:var(--mint);border-color:var(--line)}.card-number{color:var(--muted)}.feature-card.dark .card-number{color:#99b8b5}.feature-card h2{font-family:var(--display);letter-spacing:-.05em;align-self:end;margin:22px 0 4px;font-size:30px;font-weight:500;line-height:1}.feature-card p{min-height:45px;color:var(--muted);margin:0;font-size:14px;line-height:1.65}.feature-card.dark p{color:#c2e4df}.text-link{color:var(--teal);font-family:var(--mono);margin-top:12px;font-size:11px;text-decoration:none}.feature-card.dark .text-link{color:var(--mint)}.authority-note{border-top:1px solid var(--line);align-items:center;gap:12px;margin-top:48px;padding-top:18px;display:flex}.authority-note span{color:var(--teal);font-size:13px}.authority-note p{color:var(--muted);margin:0;font-size:12px}.authority-note strong{color:var(--ink)}.session-list{gap:.8rem;max-width:760px;margin-top:2rem;display:grid}.session-item{border:1px solid var(--line);background:var(--surface);border-radius:14px;justify-content:space-between;align-items:center;gap:1rem;padding:1.1rem 1.2rem;display:flex}.session-item strong,.session-item span,.session-item small{display:block}.session-item span,.session-item small{color:var(--muted);margin-top:.3rem}.session-revoke{border:1px solid var(--line);color:var(--ink);cursor:pointer;background:0 0;border-radius:8px;padding:.7rem .9rem}.session-revoke:hover{border-color:var(--teal);color:var(--teal)}.session-revoke:disabled{cursor:wait;opacity:.6}.loading-screen,.empty-screen{place-items:center;min-height:100vh;display:grid}.loading-screen{color:var(--muted);font-family:var(--mono);gap:12px;font-size:12px;display:flex}.loader{border:2px solid var(--line);border-top-color:var(--teal);border-radius:99px;width:18px;height:18px;animation:1s linear infinite spin}.empty-card{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);width:min(100% - 40px,480px);padding:clamp(28px,5vw,48px);box-shadow:0 18px 50px #12343b14}.empty-card:before{content:"";background:var(--teal);border-radius:999px;width:42px;height:3px;margin-bottom:24px;display:block}.empty-card h1{max-width:380px;color:var(--ink);font-family:var(--display);letter-spacing:-.06em;margin:0 0 14px;font-size:clamp(34px,5vw,48px);font-weight:500;line-height:1.02}.empty-card p{max-width:390px;color:var(--muted);margin:0 0 26px;font-size:15px;line-height:1.7}.button{min-height:51px;font-family:var(--mono);border-radius:8px;place-items:center;padding:0 18px;font-size:11px;text-decoration:none;display:inline-grid}.button-primary{border:1px solid var(--pine);background:var(--pine);color:#ecfdf5}.button-primary:hover{background:#115e59;border-color:#115e59}:focus-visible{outline:2px solid var(--teal);outline-offset:4px}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width:900px){.app-shell{grid-template-columns:220px minmax(0,1fr);gap:40px}.card-grid{grid-template-columns:1fr}.feature-card{min-height:180px}}@media (max-width:520px){.app-shell{width:calc(100% - 32px);display:block}.sidebar{border-right:0;border-bottom:1px solid var(--line);min-height:auto;padding:20px 0}.sidebar-caption{margin:28px 0 12px}nav{gap:4px;display:flex;overflow-x:auto}.nav-link{white-space:nowrap}.account-logout-wrap{width:100%;margin-top:22px}.topbar{min-height:72px}.breadcrumb{display:none}.content-wrap{padding:48px 0}.intro h1{font-size:clamp(48px,15vw,70px)}.switcher-menu{right:-8px}.session-item{flex-direction:column;align-items:flex-start}}@media (prefers-color-scheme:dark){:root{--canvas:#000;--surface:#133;--ink:#ecfeff;--muted:#99b8b5;--line:#285955;--pine:#062b2b;--mint:#ccfbf1;--teal:#5eead4}.brand{color:#ccfbf1;background:#062b2b}.empty-card{box-shadow:0 18px 50px #00000047}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}