.alt-df{--alt-primary:#ff5722;--alt-primary-dark:#e64a19;--alt-text:#1f2937;--alt-muted:#6b7280;--alt-border:#d1d5db;--alt-bg:#ffffff;--alt-radius:12px;max-width:440px;margin:0 auto;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--alt-text);box-sizing:border-box}.alt-df *,.alt-df *::before,.alt-df *::after{box-sizing:border-box}.alt-df--card .alt-df-form{background:var(--alt-bg);border:1px solid #eee;border-radius:var(--alt-radius);padding:22px 20px;box-shadow:0 8px 30px rgba(0,0,0,0.08)}.alt-df-title{margin:0 0 4px;font-size:20px;line-height:1.25;font-weight:700}.alt-df-subtitle{margin:0 0 16px;font-size:14px;color:var(--alt-muted)}.alt-df-field{margin-bottom:12px}.alt-df-field label{display:block;font-size:13px;font-weight:600;margin-bottom:5px}.alt-df-req{color:var(--alt-primary);margin-left:2px}.alt-df-optional{color:var(--alt-muted);font-weight:400}.alt-df-field input,.alt-df-field select{width:100%;padding:11px 12px;font-size:15px;border:1px solid var(--alt-border);border-radius:8px;background:#fff;color:var(--alt-text);transition:border-color .15s ease,box-shadow .15s ease}.alt-df-field input:focus,.alt-df-field select:focus{outline:none;border-color:var(--alt-primary);box-shadow:0 0 0 3px rgba(255,87,34,0.15)}.alt-df-field input.alt-df-error,.alt-df-field select.alt-df-error{border-color:#ef4444;box-shadow:0 0 0 3px rgba(239,68,68,0.12)}.alt-df-btn{width:100%;padding:13px 16px;margin-top:6px;font-size:16px;font-weight:700;color:#fff;background:var(--alt-primary);border:none;border-radius:8px;cursor:pointer;transition:background .15s ease,transform .05s ease}.alt-df-btn:hover{background:var(--alt-primary-dark)}.alt-df-btn:active{transform:translateY(1px)}.alt-df-btn:disabled{opacity:.7;cursor:not-allowed}.alt-df-msg{margin:10px 0 0;font-size:14px;min-height:1em}.alt-df-msg.alt-df-msg-error{color:#dc2626}.alt-df-msg.alt-df-msg-success{color:#16a34a;font-weight:600}.alt-df-trust{margin:8px 0 0;font-size:12px;color:var(--alt-muted);text-align:center}.alt-df-hp{position:absolute !important;left:-9999px !important;top:-9999px !important;height:0;width:0;overflow:hidden}.alt-df--compact{max-width:100%}.alt-df--compact .alt-df-form{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end;background:transparent;box-shadow:none;border:none;padding:0}.alt-df--compact .alt-df-field{margin-bottom:0;flex:1 1 150px}.alt-df--compact .alt-df-field label{display:none}.alt-df--compact .alt-df-btn{width:auto;margin-top:0;flex:0 0 auto}.alt-df--compact .alt-df-trust{flex:1 1 100%;text-align:left}.alt-df--compact .alt-df-msg{flex:1 1 100%}.alt-df-sticky{position:fixed;left:0;right:0;bottom:0;z-index:99990;background:#111827;color:#fff;padding:12px 16px;box-shadow:0 -6px 24px rgba(0,0,0,0.25)}.alt-df-sticky-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;gap:14px;flex-wrap:wrap}.alt-df-sticky-text{font-weight:700;font-size:15px;white-space:nowrap}.alt-df-sticky .alt-df{max-width:100%;flex:1 1 320px}.alt-df-sticky .alt-df-field input,.alt-df-sticky .alt-df-field select{padding:9px 10px;font-size:14px}.alt-df-sticky .alt-df-trust{color:#cbd5e1}.alt-df-sticky-close{position:absolute;top:6px;right:10px;background:none;border:none;color:#fff;font-size:22px;cursor:pointer;line-height:1}@media (max-width:640px){.alt-df--compact .alt-df-form{flex-direction:column;align-items:stretch}.alt-df--compact .alt-df-btn{width:100%}.alt-df-sticky-text{white-space:normal;font-size:14px}}