body { background: #f5f5f5; font-family: 'Roboto', Arial, sans-serif; margin: 0; padding: 0; }
.iwasntt-container { max-width: 480px; margin: 60px auto; background: #fff; border-radius: 8px; box-shadow: 0 2px 8px rgba(60, 64, 67, 0.15); padding: 32px 32px 24px 32px; position:relative; }
.iwasntt-header { display: flex; align-items: center; margin-bottom: 24px; }
.iwasntt-logo { width: 128px; margin-right: 12px; }
.iwasntt-title { font-size: 1.5rem; font-weight: 500; color: #202124; }
.form-group { margin-bottom: 20px; }
label { display: block; margin-bottom: 6px; color: #5f6368; font-size: 0.98rem; }
input[type="file"] { display: none; }
.drop-area { border: 2px dashed #c2c7cc; border-radius: 6px; background: #fafbfc; color: #5f6368; text-align: center; padding: 32px 10px; margin-bottom: 12px; font-size: 1.08rem; transition: border-color 0.2s, background 0.2s; cursor: pointer; }
.drop-area.dragover { border-color: #1a73e8; background: #e8f0fe; color: #1967d2; }
.file-name { margin-top: 8px; color: #444; font-size: 0.98rem; word-break: break-all; }
.options { display: flex; flex-direction: column; gap: 10px; }
.option-row { display: flex; align-items: center; gap: 10px; }
.option-row label { margin: 0; font-size: 1rem; color: #444; }
.btn-primary, .submit-btn { width: 100%; background: #1a73e8; color: #fff; border: none; border-radius: 4px; padding: 12px 0; font-size: 1.1rem; font-weight: 500; cursor: pointer; margin-top: 18px; transition: background 0.2s, opacity 0.2s, color 0.2s; }
.btn-primary:hover:not(:disabled), .submit-btn:hover:not(:disabled) { background: #1765c1; }
.btn-disabled, .btn-primary:disabled, .submit-btn:disabled { background: #bfc5cc !important; color: #888 !important; cursor: not-allowed !important; opacity: 0.75; }
#contactModal { display:none; position:fixed; top:50%; left:50%; transform:translate(-50%,-50%); background:#fff; border:1px solid #ccc; padding:24px; max-width:400px; min-width:300px; max-height:70vh; overflow:auto; z-index:2100; box-shadow:0 2px 8px rgba(0,0,0,0.2); }
#settingsModal { display:none; position:fixed; top:50px; right:50px; background:#fff; border:1px solid #ccc; padding:20px; max-width:600px; min-width:300px; max-height:70vh; overflow:auto; z-index:2000; box-shadow:0 2px 8px rgba(0,0,0,0.2); }
#logAreaContainer { position:fixed; left:0; top:0; width:100vw; text-align:center; background:#fff; box-shadow:0 2px 8px rgba(60,64,67,0.15); padding:16px 0 8px 0; z-index:9999; display:none; }
#errorBanner { display:none; position:absolute; top:-48px; left:0; width:100%; background:#d93025; color:#fff; font-weight:500; text-align:center; padding:10px 0; border-radius:6px 6px 0 0; z-index:1000; box-shadow:0 2px 8px rgba(217,48,37,0.15); transition:opacity 0.3s; }
footer.site-footer { width:100vw; text-align:center; padding:18px 0 12px 0; background:#f8f8f8; color:#555; font-size:0.95rem; border-top:1px solid #e0e0e0; position:fixed; left:0; bottom:0; z-index:9998; }
@keyframes spin { 100% { transform: rotate(360deg); } }
.spinner { animation: spin 1s linear infinite; }