:root{--background:#f8fbfd;--surface:#fff;--surface-subtle:#f0f7fb;--surface-tinted:#edf6fb;--border:#d7e8f2;--border-strong:#9fc0d1;--text:#0f172a;--text-muted:#5e7084;--ocean:#0b2f4a;--ocean-strong:#08283f;--ocean-soft:#e7f3f9;--cyan:#0e7490;--cyan-soft:#e6f7fb;--green:#047857;--green-soft:#e7f8ef;--amber:#a15c00;--amber-soft:#fff7e6;--red:#b42318;--red-soft:#fff0ee;--purple:#6750a4;--purple-soft:#f0ebff;--shadow:0 18px 48px #0c4a6e17;--shadow-soft:0 1px 2px #0f172a0f}*{box-sizing:border-box}html{min-height:100%}body{background:linear-gradient(180deg, var(--surface-tinted) 0, var(--background) 310px), var(--background);min-height:100vh;color:var(--text);letter-spacing:0;margin:0;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}.admin-shell{grid-template-columns:248px minmax(0,1fr);min-height:100vh;display:grid}.admin-sidebar{background:var(--ocean-strong);color:#fff;border-right:1px solid #e0f2fe21;flex-direction:column;gap:22px;min-height:100vh;padding:20px 14px;display:flex}.admin-brand{border-radius:10px;align-items:center;gap:12px;padding:8px;display:flex}.admin-brand__mark{width:36px;height:36px;color:var(--ocean-strong);background:#dff4ff;border-radius:9px;place-items:center;display:grid;box-shadow:0 8px 18px #00000029}.admin-brand strong,.admin-brand small{display:block}.admin-brand small,.admin-sidebar__note{color:#ffffffb8}.admin-nav{gap:5px;display:grid}.admin-nav a,.admin-sidebar__note{border-radius:9px;align-items:center;gap:10px;padding:10px 11px;display:flex}.admin-nav a{color:#edf6fbc7;font-size:14px;font-weight:700}.admin-nav a:hover{color:#fff;background:#edf6fb1f}.admin-sidebar__note{background:#edf6fb14;border:1px solid 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var(--border)}.admin-details>:not(summary){margin:14px 16px}.admin-checkbox{cursor:pointer;align-items:center;gap:9px;display:flex}.admin-checkbox input{width:16px;height:16px;accent-color:var(--cyan)}.admin-checkbox-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.admin-form__actions{align-items:center;gap:12px;display:flex}.admin-alert{border-radius:10px;align-items:center;gap:10px;margin-bottom:18px;padding:12px 14px;font-size:14px;font-weight:700;display:flex}.admin-alert--success{border:1px solid var(--green);background:var(--green-soft);color:var(--green)}.admin-alert--danger{background:var(--red-soft);color:var(--red);border:1px solid #fecaca}@media (max-width:980px){.admin-shell{grid-template-columns:1fr}.admin-sidebar{gap:14px;min-height:auto}.admin-nav{scrollbar-width:none;padding-bottom:2px;display:flex;overflow-x:auto}.admin-nav::-webkit-scrollbar{display:none}.admin-nav 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