.st-page{max-width:1100px;margin:0 auto}
.st-intro{color:var(--ink-2,#6e6e76);font-size:13px;line-height:1.7;margin:0 0 18px}
.st-panel{background:#fff;border:1px solid var(--line,#ececef);border-radius:14px;padding:24px;margin-bottom:20px}
.st-panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}
.st-panel-head h3{font-size:16px;margin:0 0 6px}
.st-panel-head p,.st-help{font-size:13px;color:var(--ink-2,#6e6e76);line-height:1.7;margin:0}
.st-status{font-size:13px;line-height:1.7;color:var(--ok,#46a758);margin:0 0 14px}
.st-status:empty{display:none}
.st-error{color:var(--danger,#e5484d)}
.st-logo-layout{display:flex;gap:24px;align-items:center}
.st-logo-preview{height:112px;width:112px;flex-shrink:0;border:1px solid var(--line,#ececef);background:#f5f4ff;border-radius:18px;display:flex;align-items:center;justify-content:center;color:var(--brand,#5e5ce6);overflow:hidden}
.st-logo-preview img{display:block;width:100%;height:100%;object-fit:contain;padding:10px;background:#fff}
.st-logo-options{flex:1;min-width:0}
.st-logo-options p{font-size:12px;line-height:1.7;color:var(--ink-2,#6e6e76);margin:10px 0;overflow-wrap:anywhere}
.st-file-label{font-size:13px;font-weight:500;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.st-file-label input{font:inherit;min-width:0;max-width:100%;color:var(--ink-2,#6e6e76);font-size:12px}
.st-file-label input::file-selector-button{border:1px solid var(--line,#ececef);background:#fff;border-radius:8px;padding:8px 12px;margin-right:10px;cursor:pointer;font:inherit;color:var(--brand,#5e5ce6)}
.st-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.st-button{border:1px solid var(--line,#ececef);border-radius:9px;padding:9px 14px;background:#fff;color:var(--ink,#1a1a1a);font:inherit;font-size:13px;cursor:pointer;white-space:nowrap;min-height:38px}
.st-button:hover:not(:disabled){background:#f6f6fa}
.st-primary{background:var(--brand,#5e5ce6);border-color:var(--brand,#5e5ce6);color:#fff}
.st-primary:hover:not(:disabled){background:var(--brand-dark,#4b47c2)}
.st-button:disabled,.st-teacher:disabled{opacity:.45;cursor:default}
.st-login-links{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line,#ececef);color:var(--ink-2,#6e6e76);font-size:12px}
.st-login-links a{color:var(--brand,#5e5ce6);text-decoration:none}
.st-teacher-layout{display:grid;grid-template-columns:minmax(200px,280px) 1fr;gap:24px}
.st-teacher-picker{border-right:1px solid var(--line,#ececef);padding-right:24px}
.st-search{font-size:12px;color:var(--ink-2,#6e6e76);display:block}
.st-search input{display:block;border:1px solid var(--line,#ececef);border-radius:9px;padding:10px 12px;margin:7px 0 12px;width:100%;font:inherit;font-size:13px;background:#fff;color:var(--ink,#1a1a1a)}
.st-teacher-list{display:flex;flex-direction:column;gap:6px;max-height:360px;overflow-y:auto}
.st-teacher{display:block;text-align:left;border:1px solid transparent;border-radius:10px;padding:12px;background:#fff;cursor:pointer;width:100%;font:inherit;color:var(--ink,#1a1a1a)}
.st-teacher strong{display:block;font-size:14px;font-weight:600}
.st-teacher span{display:block;font-size:12px;color:var(--ink-2,#6e6e76);margin-top:5px;overflow-wrap:anywhere}
.st-teacher:hover{background:#f7f7fa}
.st-selected{border-color:#dcdafa;background:#f5f4ff}
.st-teacher-editor h4{font-size:16px;margin:0 0 5px}
.st-account{font-size:12px;color:var(--ink-2,#6e6e76);margin:0 0 20px}
.st-module-options{border:0;padding:0;margin:0 0 12px;display:flex;flex-direction:column;gap:8px}
.st-module-options legend{font-size:12px;color:var(--ink-2,#6e6e76);margin-bottom:10px}
.st-module{display:flex;align-items:center;gap:12px;border:1px solid var(--line,#ececef);padding:12px 14px;border-radius:10px;cursor:pointer}
.st-module input{height:17px;width:17px;accent-color:var(--brand,#5e5ce6);flex-shrink:0}
.st-module strong{display:block;font-size:14px;font-weight:500}
.st-module small{display:block;font-size:12px;color:var(--ink-2,#6e6e76);margin-top:5px;line-height:1.6}
.st-module-off{background:#fafafa;opacity:.7;cursor:default}
.st-names-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 24px}
.st-name-field{display:flex;flex-direction:column;gap:7px;min-width:0;font-size:13px;color:var(--ink-2,#6e6e76)}
.st-name-field input{box-sizing:border-box;width:100%;min-width:0;border:1px solid var(--line,#ececef);border-radius:9px;padding:10px 12px;font:inherit;font-size:14px;color:var(--ink,#1a1a1a);background:#fff}
.st-names-help{margin-top:12px}
@media(max-width:480px){.st-names-grid{grid-template-columns:1fr}.st-name-field input{font-size:16px;min-height:44px}}
.st-empty{padding:24px 12px;color:var(--ink-2,#6e6e76);font-size:13px;text-align:center;line-height:1.7}
.st-confirm{margin:auto;max-width:calc(100vw - 32px);width:380px;border:1px solid var(--line,#ececef);border-radius:16px;background:#fff;padding:24px;color:var(--ink,#1a1a1a);box-shadow:0 24px 64px rgba(15,23,42,.2)}
.st-confirm::backdrop{background:rgba(15,23,42,.4)}
.st-confirm h3{font-size:17px;margin:0 0 12px}
.st-confirm p{font-size:13px;color:var(--ink-2,#6e6e76);line-height:1.7}
.st-confirm>div{display:flex;gap:8px;justify-content:flex-end;margin-top:24px}
.st-page button:focus-visible,.st-page input:focus-visible,.st-confirm button:focus-visible{outline:2px solid var(--brand,#5e5ce6);outline-offset:2px}
@media(max-width:700px){.st-panel{padding:18px}.st-logo-layout{gap:16px;align-items:flex-start}.st-logo-preview{height:80px;width:80px;border-radius:13px}.st-teacher-layout{grid-template-columns:1fr;gap:20px}.st-teacher-picker{border-right:0;padding-right:0;border-bottom:1px solid var(--line,#ececef);padding-bottom:16px}.st-teacher-list{max-height:190px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px}.st-teacher{padding:10px}.st-login-links{gap:12px}.st-button{min-height:42px}}
@media(max-width:390px){.st-logo-layout{flex-direction:column}.st-teacher-list{grid-template-columns:1fr}}