:root{--brand:#ff6a00;--ink:#172033;--muted:#667085;--line:#e5e7eb}
*{box-sizing:border-box}body{margin:0;background:linear-gradient(135deg,#fff5ea,#f5f7fb);font-family:Inter,system-ui,sans-serif;color:var(--ink)}
.admin-shell{width:min(980px,calc(100% - 24px));margin:0 auto;padding:32px 0}
.card{background:#fff;border:1px solid rgba(0,0,0,.06);border-radius:28px;box-shadow:0 24px 70px rgba(17,24,39,.12);padding:28px}
.login-card{width:min(430px,100%);margin:8vh auto;text-align:center}.login-card img{width:82px;height:82px;border-radius:24px}.login-card p{color:var(--muted)}
input,textarea{width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;font:inherit;outline:none}textarea{min-height:110px;resize:vertical}
input:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,106,0,.12)}
button{border:0;border-radius:14px;background:var(--brand);color:#fff;padding:13px 18px;font-weight:800;cursor:pointer}.login-card button{width:100%;margin-top:12px}
.login-card input{margin-top:10px}.login-card small{display:block;margin-top:14px;color:var(--muted)}
.hidden{display:none}.topbar{display:flex;justify-content:space-between;align-items:center;gap:20px}.topbar a{color:var(--brand);font-weight:800;text-decoration:none}
.eyebrow{margin:0;color:var(--brand);font-size:.74rem;font-weight:900;letter-spacing:.14em}.topbar h1{margin:5px 0 0}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}.grid label{font-size:.84rem;font-weight:800}.grid input,.grid textarea{margin-top:7px}.wide{grid-column:1/-1}
.switch-row{display:flex;align-items:center;gap:10px}.switch-row input{width:auto;margin:0}
.actions{display:flex;gap:10px;margin-top:22px}.ghost{background:#f2f4f7;color:var(--ink)}.notice{margin:20px 0 0;color:var(--muted);font-size:.86rem;line-height:1.5}
@media(max-width:700px){.grid{grid-template-columns:1fr}.wide{grid-column:auto}.topbar{align-items:flex-start;flex-direction:column}.card{padding:20px}}
.top-actions{display:flex;align-items:center;gap:10px}
.logout{background:#f2f4f7;color:var(--ink);padding:10px 13px}
.login-error{min-height:20px;margin-top:10px;color:#b42318;font-size:.84rem}
@media(max-width:700px){.top-actions{width:100%;justify-content:space-between}}

.notice.ok{border-color:rgba(22,163,74,.25);background:#f0fdf4;color:#166534}
.notice.err{border-color:rgba(220,38,38,.25);background:#fef2f2;color:#991b1b}
button:disabled{opacity:.58;cursor:wait}