*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Ubuntu',system-ui,sans-serif;background:#f5f7fa;min-height:100vh;color:#1f2937;}
.header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid rgba(0,0,0,0.06);box-shadow:0 2px 8px rgba(254,191,15,0.3);}
.header-inner{max-width:1100px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;}
.header-left{display:flex;align-items:center;gap:20px;}
.header-logo{height:24px;width:auto;}
.back-link{display:inline-flex;align-items:center;gap:6px;color:#003366;text-decoration:none;font-size:14px;font-weight:600;background:rgba(254,191,15,0.15);padding:8px 14px;border-radius:8px;transition:all 0.2s;}
.back-link:hover{background:#FEBF0F;color:#003366;}
.container{max-width:1100px;margin:0 auto;padding:32px 24px;}
.security-top-grid{display:grid;grid-template-columns:1fr;gap:24px;align-items:start;}
.page-header{margin-bottom:24px;padding-bottom:16px;border-bottom:2px solid rgba(254,191,15,0.3);display:flex;align-items:center;gap:12px;}
.page-header h1{font-size:1.15rem;color:#1f2937;font-weight:700;}
.page-header::before{content:'\1F510';font-size:1.1rem;}

.section{background:#fff;border-radius:16px;padding:28px;margin-bottom:24px;box-shadow:0 6px 24px rgba(0,51,102,0.08);border:1px solid rgba(0,51,102,0.12);position:relative;overflow:hidden;}
.section::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#003366,#004d99);}
.section h2{font-size:1.1rem;color:#1f2937;margin-bottom:20px;font-weight:700;display:flex;align-items:center;gap:8px;}

.toggle-group{display:flex;justify-content:space-between;align-items:center;padding:16px;background:#f8fafc;border-radius:10px;flex-wrap:wrap;gap:12px;border:1px solid #e5e7eb;}
.toggle-info h4{font-size:14px;color:#1f2937;margin-bottom:4px;}
.toggle-info p{font-size:13px;color:#6b7280;}
.twofa-method-actions{display:flex;gap:10px;flex-wrap:wrap;}
.email-setup-box{background:#f8fafc;border:1px solid #e5e7eb;border-radius:10px;padding:14px;margin-bottom:14px;}
.email-setup-box h4{font-size:14px;margin-bottom:6px;}
.email-setup-box p{font-size:13px;color:#6b7280;margin-bottom:10px;}
.email-setup-actions{display:flex;gap:10px;flex-wrap:wrap;}
.method-switch-box{margin-top:14px;padding:14px;border-radius:10px;border:1px solid #e5e7eb;background:#f8fafc;}
.method-switch-box h4{font-size:14px;margin-bottom:4px;}
.method-switch-box p{font-size:12px;color:#6b7280;margin-bottom:10px;}
.method-switch-actions{display:flex;gap:10px;flex-wrap:wrap;}
.toggle{width:48px;height:26px;background:#d1d5db;border-radius:13px;position:relative;cursor:pointer;transition:background 0.2s;border:none;padding:0;}
.toggle.active{background:#10b981;}
.toggle::after{content:'';position:absolute;width:22px;height:22px;background:#fff;border-radius:50%;top:2px;left:2px;transition:transform 0.2s;box-shadow:0 1px 3px rgba(0,0,0,0.1);}
.toggle.active::after{transform:translateX(22px);}

.form-group{margin-bottom:18px;}
.form-group label{display:block;margin-bottom:7px;font-size:13px;color:#374151;font-weight:500;}
.form-group input,.form-group select{width:100%;padding:11px 13px;border:1px solid #ddd;border-radius:8px;font-size:14px;font-family:'Ubuntu',sans-serif;}
.password-wrapper { position: relative; display: flex; align-items: center; }
.password-wrapper input { width: 100%; padding-right: 44px; }
.toggle-password {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  color: #6b7280;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease;
}
.toggle-password:hover, .toggle-password.visible { color: #003366; }
.toggle-password .eye-icon { width: 18px; height: 18px; }
.form-group input:focus{outline:none;border-color:#003366;}
.btn{padding:10px 18px;border-radius:8px;font-weight:600;font-size:14px;cursor:pointer;border:none;text-decoration:none;font-family:'Ubuntu',sans-serif;display:inline-flex;align-items:center;gap:8px;transition:all 0.2s;}
.btn-primary{background:#FEBF0F;color:#1b1b1b;}
.btn-primary:hover{background:#e6a600;}
.btn-outline{background:transparent;border:1px solid #ddd;color:#333;}
.btn-outline:hover{background:#f5f5f5;}
.btn-danger{background:#dc2626;color:#fff;}
.btn-danger:hover{background:#b91c1c;}
.btn:disabled{opacity:0.5;cursor:not-allowed;}

.qr-box{text-align:center;margin:16px 0;}
.qr-box img{width:200px;height:200px;border-radius:10px;border:1px solid #e5e7eb;padding:6px;background:#fff;}
.manual-key{background:#f9fafb;border:1px dashed #d1d5db;border-radius:8px;padding:10px 12px;font-family:monospace;font-size:0.78rem;color:#374151;word-break:break-all;margin-top:8px;text-align:center;}

.backup-codes{background:#f9fafb;border:1px dashed #d1d5db;border-radius:10px;padding:16px;}
.codes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:6px 16px;font-family:monospace;font-size:0.82rem;color:#1f2937;margin-top:8px;}
.code-strike{text-decoration:line-through;color:#9ca3af;}

.sessions-table{width:100%;border-collapse:collapse;font-size:13px;margin-top:8px;}
.sessions-table th,.sessions-table td{padding:10px 8px;text-align:left;border-bottom:1px solid #e5e7eb;}
.sessions-table th{color:#6b7280;font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:0.03em;}
.session-location{display:flex;flex-direction:column;line-height:1.3;}
.session-location .label{font-size:12px;color:#374151;}
.session-location .ip{font-size:11px;color:#94a3b8;}
.current-badge{background:#10b981;color:#fff;font-size:11px;padding:2px 8px;border-radius:10px;margin-left:6px;}
.revoke-btn{color:#dc2626;background:none;border:none;cursor:pointer;font-size:12px;font-weight:600;padding:4px 8px;border-radius:6px;transition:background 0.2s;}
.revoke-btn:hover{background:#fef2f2;}
.revoke-btn:disabled{opacity:0.4;cursor:not-allowed;}
.empty-msg{color:#6b7280;font-size:13px;text-align:center;padding:20px 0;}

.alert{padding:12px 16px;border-radius:8px;font-size:13px;margin-bottom:14px;display:none;align-items:center;gap:8px;}
.alert.show{display:flex;}
.alert-success{background:#d1fae5;color:#065f46;border:1px solid #a7f3d0;}
.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca;}

.danger-zone{border:1px solid #fecaca;background:#fef2f2;}
.danger-zone h2{color:#dc2626;}
.danger-item{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid #fecaca;flex-wrap:wrap;gap:12px;}
.danger-item:last-child{border-bottom:none;}

.form-grid-two{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.disable-panel{margin-top:14px;padding:16px;border-radius:10px;border:1px solid #fecaca;background:#fff7f7;}
.disable-panel h4{font-size:14px;margin-bottom:6px;color:#991b1b;}
.disable-help{font-size:12px;color:#7f1d1d;margin-bottom:10px;}
.disable-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}

@media(max-width:980px){.security-top-grid{grid-template-columns:1fr;}}
@media(max-width:640px){.container{padding:20px 16px;}.toggle-group{flex-direction:column;align-items:flex-start;}.section{padding:20px;}.sessions-table{display:block;overflow-x:auto;}}
@media(max-width:640px){.form-grid-two{grid-template-columns:1fr;}}