:root{--blue:#00529B;--red:#E31D3C;--gold:#FFB81C;--bg:#f5f7fb;--text:#1e2a3a;--text-secondary:#5a6c7d;--border:#e0e4e9;--shadow-sm:0 2px 8px rgba(0,0,0,.04);--shadow-md:0 4px 12px rgba(0,0,0,.08);--shadow-lg:0 8px 24px rgba(0,0,0,.12);--radius-sm:8px;--radius-md:12px;--radius-lg:16px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Roboto,-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{max-width:1000px;margin:0 auto;padding:20px}@media (min-width:768px){.container{padding:32px}}.card{background:#fff;border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-sm);margin:16px 0;border:1px solid var(--border);transition:all .2s ease}.card.error{border-left:4px solid var(--red);background:#fff8f8}.topbar{display:flex;align-items:center;justify-content:space-between;margin:0 0 24px;padding-bottom:16px;border-bottom:1px solid var(--border)}.topbar h1{margin:0;font-size:24px;font-weight:700;color:var(--text)}@media (min-width:768px){.topbar h1{font-size:32px}}.link{background:none;border:none;color:var(--blue);cursor:pointer;font-weight:500;font-size:14px;padding:8px 12px;border-radius:var(--radius-sm);transition:background .2s ease;min-height:44px;min-width:44px}.link:hover{background:#00529b14}form{display:flex;flex-direction:column;gap:16px}@media (min-width:640px){form{flex-direction:row}}input{flex:1;padding:14px 16px;border:1px solid var(--border);border-radius:var(--radius-md);font-size:16px;font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease;min-height:48px}input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px #00529b1a}button{padding:14px 24px;border:none;border-radius:var(--radius-md);color:#fff;font-weight:600;font-size:16px;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease;min-height:48px;min-width:120px}button:hover:not(:disabled){transform:translateY(-1px);box-shadow:var(--shadow-md)}button:active:not(:disabled){transform:translateY(0)}button:disabled{opacity:.5;cursor:not-allowed}.group{margin:32px 0}.group h3{margin:0 0 16px;font-size:18px;font-weight:600;color:var(--text-secondary);padding-left:4px}@media (min-width:768px){.group h3{font-size:20px}}.grid{display:flex;flex-direction:column;gap:16px}@media (min-width:1024px){.grid{gap:20px}}.card.session{position:relative;cursor:pointer;padding:20px;transition:all .2s ease}.card.session:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.card.session.selected{border:2px solid var(--gold);box-shadow:0 0 0 3px #ffb81c26,var(--shadow-md);transform:translateY(-2px)}.badge{position:absolute;top:16px;right:16px;color:#fff;padding:6px 10px;border-radius:var(--radius-sm);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.card.session h4{margin:0 0 8px;font-size:16px;font-weight:600;line-height:1.4;color:var(--text);padding-right:80px}@media (min-width:768px){.card.session h4{font-size:18px}}.muted{color:var(--text-secondary);font-size:14px;margin:4px 0}.meta{font-size:13px;color:var(--text-secondary);margin-top:8px;font-weight:500}.actions{display:flex;justify-content:flex-end;margin-top:16px}.has-bottom-bar{padding-bottom:120px}.bottom-bar{position:fixed;left:0;right:0;bottom:0;padding:20px 0 calc(env(safe-area-inset-bottom,0px) + 20px);background:linear-gradient(180deg,#f5f7fb00,#f5f7fbf2 20%,#fff 50%);box-shadow:0 -2px 20px #00000014;z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.bottom-bar .inner{max-width:1000px;margin:0 auto;padding:0 20px;display:flex;justify-content:flex-end;align-items:center}@media (min-width:768px){.bottom-bar .inner{padding:0 32px}}.bottom-bar button{min-width:160px;font-size:18px;padding:16px 32px;box-shadow:var(--shadow-md)}