.vault-dialog { width:min(430px,calc(100% - 24px)); padding:0; border:0; border-radius:20px; color:#102c34; background:#fff; box-shadow:0 25px 90px #041c2590; }
.vault-dialog::backdrop { background:#071f29c9; backdrop-filter:blur(3px); }
.vault-shell { padding:32px; }
.vault-kicker { font-size:12px; letter-spacing:.13em; font-weight:850; color:#00546f; }
.vault-shell h2 { margin:12px 0; font-size:30px; line-height:1.2; }
.vault-shell p { color:#526a71; margin:0 0 22px; }
.vault-shell label { display:block; font-size:14px; font-weight:800; margin-bottom:8px; }
.vault-shell input { width:100%; min-height:55px; padding:10px 16px; border:1px solid #9fb3b8; border-radius:10px; color:#102c34; background:#fff; font:700 25px/1 system-ui; letter-spacing:.2em; }
.vault-shell input:focus { outline:3px solid #9ee8f7; }
.vault-shell .vault-error { min-height:22px; margin:8px 0; color:#a03d3f; font-size:14px; }
.vault-actions { display:flex; gap:10px; }
.vault-actions button { min-height:48px; padding:10px 17px; border:0; border-radius:999px; font:800 15px/1.3 system-ui; cursor:pointer; }
.vault-submit { background:#00546f; color:#fff; }
.vault-submit:disabled { opacity:.6; cursor:wait; }
.vault-cancel { background:#edf3f3; color:#102c34; }
.locked-lessons { padding:30px; border:1px solid #dce5e4; border-radius:18px; background:#eef5f5; }
.locked-lessons p { margin:0 0 15px; color:#425e66; }
.locked-lessons button { min-height:46px; padding:9px 18px; border:0; border-radius:999px; color:white; background:#00546f; font:800 15px/1.3 system-ui; cursor:pointer; }
[data-theme="dark"] .locked-lessons { background:#16313a; border-color:#355963; }
[data-theme="dark"] .locked-lessons p { color:#cfdee1; }
@media(max-width:500px) { .vault-shell { padding:25px 20px; } }