/* Dental AI Transform v10 */
*{box-sizing:border-box;margin:0;padding:0}
#dat{
    max-width:560px;margin:0 auto;
    font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,sans-serif;
    color:var(--text,#111827);
    --primary:#4F7EF7;--secondary:#7c3aed;
    --bg:#f7f9ff;--border:#c7d7f8;
    --text:#111827;--sub:#6b7280;
}

/* upload */
#dat-zone{border:2px dashed var(--border);border-radius:18px;background:var(--bg);padding:40px 20px 32px;text-align:center;cursor:pointer;transition:.2s}
#dat-zone:hover,#dat-zone.over{border-color:var(--primary);filter:brightness(.97)}
.zi{width:50px;height:50px;margin-bottom:12px}
.zt{font-size:16px;font-weight:700;color:var(--text);margin-bottom:6px}
.zb{background:var(--primary);color:#fff;border:none;border-radius:9px;padding:9px 24px;font-size:14px;font-weight:600;cursor:pointer;margin-bottom:8px;transition:opacity .2s}
.zb:hover{opacity:.85}
.zh{font-size:12px;color:var(--sub)}
#dat-prev{position:relative;margin-top:12px;border-radius:14px;overflow:hidden;line-height:0;box-shadow:0 4px 14px rgba(0,0,0,.1)}
#dat-thumb{width:100%;max-height:300px;object-fit:cover;display:block}
#dat-clr{position:absolute;top:9px;right:9px;background:rgba(0,0,0,.5);color:#fff;border:none;border-radius:50%;width:28px;height:28px;font-size:13px;cursor:pointer;display:flex;align-items:center;justify-content:center}
#dat-clr:hover{background:rgba(200,30,30,.8)}
#dat-go{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;margin-top:12px;padding:15px;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border:none;border-radius:13px;font-size:16px;font-weight:700;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.14);transition:.2s}
#dat-go:disabled{opacity:.3;cursor:not-allowed;box-shadow:none}
#dat-go:not(:disabled):hover{opacity:.9;transform:translateY(-2px)}
.spin{width:17px;height:17px;border:2.5px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .75s linear infinite;flex-shrink:0}
@keyframes spin{to{transform:rotate(360deg)}}

/* loading */
#s-load{text-align:center;padding:52px 20px 56px}
.tw{position:relative;display:inline-flex;align-items:flex-end;gap:5px;margin-bottom:24px}
.t{width:17px;height:var(--h);background:color-mix(in srgb,var(--primary) 18%,#fff);border:1.5px solid color-mix(in srgb,var(--primary) 32%,#fff);border-radius:3px 3px 7px 7px;animation:glow 1.4s ease-in-out infinite;animation-delay:var(--d)}
@keyframes glow{0%,100%{background:color-mix(in srgb,var(--primary) 18%,#fff)}50%{background:#fff;border-color:var(--primary);box-shadow:0 0 10px color-mix(in srgb,var(--primary) 40%,transparent)}}
.sp{position:absolute;top:-7px;right:-7px;width:12px;height:12px;background:#fbbf24;border-radius:50%;animation:sp 1.4s ease-in-out infinite}
@keyframes sp{0%,100%{transform:scale(1)}50%{transform:scale(1.6);opacity:.5}}
.lt{font-size:19px;font-weight:700;margin-bottom:6px;color:var(--text)}
.ls{font-size:13px;color:var(--sub);margin-bottom:14px}
.lb-w{height:4px;background:#e5e7eb;border-radius:2px;overflow:hidden;max-width:240px;margin:0 auto 8px}
#lb{height:100%;width:0%;background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:2px;transition:width .7s ease-out}
.lc{font-size:12px;color:var(--sub)}

/* result */
.rh{margin-bottom:14px}
.rh h2{font-size:21px;font-weight:800;color:var(--text);margin-bottom:3px}
.rh p{font-size:13px;color:var(--sub)}

/* compare */
#dat-cmp{position:relative;width:100%;padding-bottom:66%;border-radius:16px;overflow:hidden;background:#111;cursor:ew-resize;user-select:none;touch-action:none;box-shadow:0 6px 24px rgba(0,0,0,.18)}
#cb,#ca{position:absolute;inset:0;overflow:hidden}
#ca{width:50%;right:auto}
#img-b,#img-a{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center top;display:block}
#img-a{max-width:none}
#cd{position:absolute;top:0;left:50%;transform:translateX(-50%);height:100%;display:flex;flex-direction:column;align-items:center;z-index:9;pointer-events:none}
.cl{flex:1;width:3px;background:rgba(255,255,255,.88)}
.cc{width:38px;height:38px;border-radius:50%;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.18);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.lb-l,.lb-r{position:absolute;top:11px;font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:#fff;background:rgba(0,0,0,.48);padding:3px 10px;border-radius:20px;pointer-events:none;line-height:1.7}
.lb-l{left:11px}.lb-r{right:11px}
#ct{height:4px;background:#e5e7eb;border-radius:2px;margin:11px 0 5px;overflow:hidden}
#cb2{height:100%;width:0%;background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:2px;transition:width .05s linear}
.ch{font-size:12px;color:var(--sub);text-align:center;margin-bottom:18px}

/* actions */
#dat-acts{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
#dat-dl{background:var(--primary);color:#fff;border:none;border-radius:11px;padding:10px 22px;font-size:14px;font-weight:600;cursor:pointer;transition:.15s}
#dat-dl:hover{opacity:.88;transform:translateY(-2px)}
#dat-new{background:#f3f4f6;color:#374151;border:none;border-radius:11px;padding:10px 22px;font-size:14px;font-weight:600;cursor:pointer}
#dat-new:hover{background:#e5e7eb}

/* error */
#s-err{text-align:center;padding:44px 20px;background:#fffbeb;border:1.5px solid #fde68a;border-radius:18px}
.ei{font-size:42px;margin-bottom:10px}
.eh{font-size:18px;font-weight:700;margin-bottom:6px;color:var(--text)}
.es{font-size:14px;color:var(--sub);margin-bottom:18px;line-height:1.6}
#dat-retry{background:var(--primary);color:#fff;border:none;border-radius:10px;padding:10px 28px;font-size:14px;font-weight:600;cursor:pointer}
#dat-retry:hover{opacity:.88}

@media(max-width:480px){
    #dat-zone{padding:28px 14px}
    .zt{font-size:14px}
    #dat-go{font-size:14px;padding:13px}
    #dat-acts button{padding:9px 14px;font-size:13px}
}