:root{--background:#18181a;--surface:#222225;--bar:#09090a;--text:#f5f5f5;--muted:#aaaab0;--line:#37373c;--accent:#d22064;--success:#58c786;--danger:#ff7d88}*{box-sizing:border-box}html,body{background:var(--background);min-height:100%}body{color:var(--text);margin:0;font-family:Arial,Helvetica,sans-serif}button{font:inherit}.installer-shell{background:var(--background);justify-content:center;align-items:center;min-height:100vh;padding:36px;display:flex}.app-window{background:var(--surface);border:1px solid #2f2f33;border-radius:22px;width:100%;max-width:1020px;overflow:hidden;box-shadow:0 20px 70px #00000047}.app-bar{background:var(--bar);justify-content:space-between;align-items:center;min-height:68px;padding:10px 20px;display:flex}.app-identity{align-items:center;gap:12px;font-size:18px;font-weight:700;display:flex}.app-identity img{object-fit:cover;border-radius:10px;width:42px;height:42px}.platform-badge{color:#bdbdc2;letter-spacing:.12em;border:1px solid #3a3a3f;border-radius:999px;padding:8px 14px;font-size:12px;font-weight:700}.install-screen{flex-direction:column;align-items:center;gap:32px;padding:64px 72px 54px;display:flex}.app-logo{object-fit:cover;border-radius:30px;flex:none;width:192px;height:192px;box-shadow:0 12px 34px #0000004d}.install-content{text-align:center;width:100%;min-width:0}.install-button{color:#151517;cursor:pointer;background:#f1f1f3;border:0;border-radius:12px;min-width:270px;min-height:58px;padding:0 28px;font-size:18px;font-weight:700;transition:background .12s,transform .12s}.install-button:hover:not(:disabled){background:#fff}.install-button:active:not(:disabled){transform:scale(.98)}.install-button:focus{outline:3px solid var(--accent);outline-offset:4px}.install-button:disabled{cursor:default;opacity:.68}.status-box{color:#8f8f95;justify-content:center;align-items:center;gap:10px;min-height:24px;margin-top:18px;font-size:14px;display:flex}.status-dot{background:currentColor;border-radius:50%;flex:none;width:8px;height:8px}.status-working{color:#d4af4b}.status-done{color:var(--success)}.status-error{color:var(--danger)}.after-install{border-top:1px solid var(--line);background:#1d1d20;align-items:center;gap:14px;padding:20px 28px;display:flex}.step-number{color:#f5f5f5;background:#303034;border-radius:50%;flex:none;justify-content:center;align-items:center;width:34px;height:34px;font-family:Georgia,Times New Roman,serif;font-size:23px;font-style:italic;font-weight:700;line-height:1;display:flex}.after-install p{margin:0}.after-install strong,.after-install small{display:block}.after-install strong{font-size:15px}.after-install small{color:#8f8f95;margin-top:4px;font-size:13px}@media (width<=760px){.installer-shell{padding:14px}.app-window{border-radius:16px}.install-screen{gap:28px;padding:38px 24px 34px}.app-logo{border-radius:22px;width:126px;height:126px}.install-button{width:100%;min-width:0}.app-bar{padding:10px 14px}}@media (prefers-reduced-motion:reduce){*{transition:none!important}}