:root{--primary:#2563eb;--primary-dark:#1d4ed8;--surface:#fff;--page:#f4f7fb;--text:#172033;--muted:#5e6b82;--border:#d9e0eb;--danger:#b42318;--danger-bg:#fef3f2;--success:#067647;--success-bg:#ecfdf3}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--page);color:var(--text)}.auth-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:min(100%,430px);background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px;box-shadow:0 8px 28px rgba(23,32,51,.08)}.brand{display:flex;gap:12px;align-items:center;color:var(--text);text-decoration:none;font-weight:700;font-size:1.15rem;margin-bottom:28px}.brand span{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:var(--primary);color:#fff}h1{font-size:1.75rem;margin:0 0 8px}.lead{color:var(--muted);margin:0 0 24px}label{display:block;font-weight:600;margin:16px 0 0}input:not([type=checkbox]){width:100%;margin-top:7px;padding:12px 14px;border:1px solid var(--border);border-radius:9px;font:inherit;color:inherit}input:focus{outline:3px solid rgba(37,99,235,.18);border-color:var(--primary)}small{font-weight:400;color:var(--muted)}button{width:100%;margin-top:24px;border:0;border-radius:9px;padding:13px 18px;background:var(--primary);color:#fff;font:inherit;font-weight:700;cursor:pointer}button:hover{background:var(--primary-dark)}.form-row{display:flex;justify-content:space-between;align-items:center;margin-top:16px;gap:16px}.check{display:flex;align-items:center;gap:7px;margin:0;font-weight:400}.foot{text-align:center;color:var(--muted);margin:22px 0 0}a{color:var(--primary)}.alert{padding:12px 14px;border-radius:9px;margin:18px 0;font-size:.94rem}.error{color:var(--danger);background:var(--danger-bg)}.success{color:var(--success);background:var(--success-bg)}@media(max-width:520px){.auth-shell{padding:12px}.auth-card{padding:24px 20px;border-radius:12px}.form-row{align-items:flex-start;flex-direction:column;gap:10px}}