.tfa-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:9999;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);padding:20px}.tfa-modal{background:var(--bg-card, #ffffff);border-radius:16px;padding:40px 32px;max-width:420px;width:100%;box-shadow:var(--shadow-medium, 0 20px 60px rgba(0, 0, 0, .15));text-align:center}.tfa-header{margin-bottom:24px}.tfa-icon{width:64px;height:64px;border-radius:50%;background:var(--accent-gold);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:#fff}.tfa-header h2{margin:0 0 8px;font-size:22px;color:var(--text-primary, #5A4A42)}.tfa-subtitle{display:flex;align-items:center;justify-content:center;gap:6px;font-size:14px;color:var(--text-secondary, #9B8B7E);margin:0}.tfa-error{display:flex;align-items:center;gap:8px;padding:10px 14px;background:#f4433514;border:1px solid rgba(244,67,53,.25);border-radius:8px;color:var(--accent-error);font-size:13px;margin-bottom:20px}.tfa-digits{display:flex;gap:8px;justify-content:center;margin-bottom:20px}.tfa-digit-input{width:48px;height:56px;text-align:center;font-size:24px;font-weight:800;border:2px solid var(--border-default);border-radius:12px;background:var(--bg-input);color:var(--text-primary);outline:none;transition:border-color .2s;font-family:monospace}.tfa-digit-input:focus{border-color:var(--accent-gold);box-shadow:0 0 0 3px var(--accent-gold-bg)}.tfa-resend-btn{display:flex;align-items:center;gap:6px;margin:0 auto 24px;padding:8px 16px;background:none;border:none;color:var(--text-secondary, #9B8B7E);font-size:13px;cursor:pointer;transition:color .2s}.tfa-resend-btn:hover:not(:disabled){color:var(--accent-gold)}.tfa-resend-btn:disabled{opacity:.5;cursor:not-allowed}.tfa-spin{animation:tfa-spin 1s linear infinite}@keyframes tfa-spin{to{transform:rotate(360deg)}}.tfa-backup-input{margin-bottom:24px}.tfa-input{width:100%;padding:14px 16px;border:2px solid var(--border-default, #E8E4E0);border-radius:12px;font-size:18px;font-family:monospace;text-align:center;letter-spacing:4px;background:var(--bg-input, #F5F1ED);color:var(--text-primary, #5A4A42);outline:none;box-sizing:border-box}.tfa-input:focus{border-color:var(--accent-gold);box-shadow:0 0 0 3px var(--accent-gold-bg)}.tfa-actions{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}.tfa-verify-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:14px;background:var(--accent-gold);color:#fff;border:none;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:opacity .2s}.tfa-verify-btn:hover:not(:disabled){opacity:.9}.tfa-verify-btn:disabled{opacity:.5;cursor:not-allowed}.tfa-cancel-btn{width:100%;padding:12px;background:none;border:1px solid var(--border-default, #E8E4E0);border-radius:12px;color:var(--text-secondary, #9B8B7E);font-size:14px;cursor:pointer;transition:background .2s}.tfa-cancel-btn:hover{background:var(--bg-input, #F5F1ED)}.tfa-toggle-method{background:none;border:none;color:var(--accent-gold);font-size:13px;cursor:pointer;text-decoration:underline;padding:4px}.tfa-toggle-method:hover{color:var(--accent-gold-hover)}.tfa-spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:tfa-spin .6s linear infinite}@media (max-width: 480px){.tfa-modal{padding:28px 20px}.tfa-digit-input{width:42px;height:48px;font-size:20px}}@media (max-width: 360px){.tfa-digits{gap:5px}.tfa-digit-input{width:36px;height:44px;font-size:18px;border-radius:10px}}