:root{--bg:#0f172a;--panel:#1e293b;--text:#e2e8f0;--muted:#94a3b8;--accent:#38bdf8;--accent-hover:#0ea5e9;--error:#f87171;--border:#334155}*{box-sizing:border-box}body,html{padding:0;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;min-height:100vh}.page-center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:32px;width:100%;max-width:380px}.card h1{font-size:1.5rem;margin:0 0 4px}.card p.subtitle{color:var(--muted);margin:0 0 24px;font-size:.9rem}form{gap:14px}form,label{display:flex;flex-direction:column}label{font-size:.85rem;color:var(--muted);gap:6px}input{background:#0f172a;border:1px solid var(--border);border-radius:8px;padding:10px 12px;color:var(--text);font-size:.95rem}input:focus{outline:none;border-color:var(--accent)}button{cursor:pointer;border:none;border-radius:8px;padding:11px 16px;font-size:.95rem;font-weight:600;background:var(--accent);color:#06202f;transition:background .15s ease}button:hover{background:var(--accent-hover)}button:disabled{opacity:.6;cursor:not-allowed}button.secondary{background:transparent;border:1px solid var(--border);color:var(--text)}.error-text{color:var(--error);font-size:.85rem;margin:0}.switch-link{margin-top:18px;font-size:.85rem;color:var(--muted);text-align:center}.switch-link a{color:var(--accent);text-decoration:none}.switch-link a:hover{text-decoration:underline}.dashboard{max-width:640px;margin:0 auto;padding:48px 24px}.dashboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}.dashboard-header h1{font-size:1.3rem;margin:0}.temp-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:28px;margin-bottom:20px}.temp-card h2{font-size:.9rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:0 0 12px}.temp-value{font-size:3rem;font-weight:700;line-height:1}.temp-sub{color:var(--muted);font-size:.9rem;margin-top:8px}.temp-grid{display:flex;gap:24px;margin-top:8px}.logout-btn{background:transparent;border:1px solid var(--border);color:var(--muted);padding:8px 14px;font-size:.85rem}