@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite;display:inline-block;margin-right:8px}button:disabled{opacity:.6;cursor:not-allowed;pointer-events:none}.container{max-width:680px;max-height:calc(100vh - 40px);overflow-y:auto;scrollbar-width:thin;scrollbar-color:rgba(102,126,234,.6) rgba(255,255,255,.1)}html,body{height:100%;overflow:hidden}.container::-webkit-scrollbar{width:8px}.container::-webkit-scrollbar-track{background:#ffffff1a;border-radius:10px}.container::-webkit-scrollbar-thumb{background:#667eea99;border-radius:10px;transition:background .3s ease}.container::-webkit-scrollbar-thumb:hover{background:#667eeacc}.nav-header{text-align:left;margin-bottom:24px}.back-btn{display:inline-flex;align-items:center;gap:8px;color:#667eea;text-decoration:none;font-size:14px;font-weight:500;padding:8px 16px;border-radius:8px;transition:all .3s ease}.back-btn:hover{background:#f7fafc;transform:translate(-4px)}.back-btn svg{flex-shrink:0}h1{font-size:32px;margin-bottom:12px}#userInfo{margin:24px 0;animation:slideUp .6s ease-out .2s both}.profile-header{background:linear-gradient(135deg,#667eea,#764ba2);padding:32px;border-radius:16px;color:#fff;box-shadow:0 10px 30px #667eea4d;margin-bottom:24px;text-align:center}.profile-header img{width:100px;height:100px;border-radius:50%;border:4px solid white;box-shadow:0 4px 12px #0003;margin-bottom:16px;object-fit:cover}.profile-header strong{font-size:24px;font-weight:600;display:block;margin-bottom:8px}.user-email{font-size:16px;opacity:.95}.settings-section{background:#fff;border:2px solid #e2e8f0;border-radius:12px;padding:24px;margin-bottom:20px}.settings-section h3{font-size:18px;color:#1a202c;margin-bottom:20px;padding-bottom:12px;border-bottom:2px solid #e2e8f0}.setting-item{display:flex;justify-content:space-between;align-items:center;padding:16px 0;border-bottom:1px solid #f7fafc}.setting-item:last-child{border-bottom:none}.setting-label{font-size:14px;color:#718096;font-weight:500}.setting-value{font-size:14px;color:#1a202c;font-weight:600;text-align:right;word-break:break-all;max-width:60%}.badge{display:inline-block;padding:6px 12px;border-radius:20px;font-size:12px;font-weight:500}.badge-success{background:#d4edda;color:#155724}.badge-warning{background:#fff3cd;color:#856404}.last-signin-device{display:block;margin-top:4px;font-size:12px;font-weight:500;color:#667eea;opacity:.85}.device-section{border-color:#667eea;border-width:2px}.device-section h3{color:#667eea;border-bottom-color:#e8ecff}.device-badge{display:inline-block;padding:6px 14px;border-radius:20px;font-size:13px;font-weight:600}.device-badge.desktop{background:linear-gradient(135deg,#e8ecff,#d4daff);color:#4c51bf}.device-badge.mobile{background:linear-gradient(135deg,#d4edda,#c3e6cb);color:#155724}.device-badge.tablet{background:linear-gradient(135deg,#fff3cd,#ffeeba);color:#856404}.danger-btn{width:100%;padding:14px 24px;background:#dc3545;border:none;border-radius:10px;font-size:16px;font-weight:500;color:#fff;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 12px #dc35454d;animation:slideUp .6s ease-out .4s both}.danger-btn:hover{background:#c82333;transform:translateY(-2px);box-shadow:0 6px 20px #dc354566}.danger-btn:active{transform:translateY(0)}@media(max-width:768px){.container{max-width:600px}h1{font-size:28px}.profile-header{padding:28px}.profile-header img{width:90px;height:90px}.profile-header strong{font-size:22px}.settings-section{padding:20px}}@media(max-width:480px){h1{font-size:24px}.back-btn{font-size:13px;padding:6px 12px}.profile-header{padding:24px 20px}.profile-header img{width:80px;height:80px;border-width:3px}.profile-header strong{font-size:20px}.user-email{font-size:14px}.settings-section{padding:16px}.settings-section h3{font-size:16px;margin-bottom:16px}.setting-item{flex-direction:column;align-items:flex-start;gap:8px;padding:12px 0}.setting-label{font-size:13px}.setting-value{text-align:left;max-width:100%;font-size:13px}.danger-btn{padding:12px 20px;font-size:15px}}@media(max-width:360px){h1{font-size:22px}.profile-header img{width:70px;height:70px}.profile-header strong{font-size:18px}.settings-section{padding:12px}}@media(max-height:600px)and (orientation:landscape){h1{font-size:20px;margin-bottom:8px}.nav-header{margin-bottom:12px}.profile-header{padding:16px;margin-bottom:16px}.profile-header img{width:60px;height:60px;margin-bottom:8px}.profile-header strong{font-size:18px}.settings-section{padding:16px;margin-bottom:12px}.settings-section h3{font-size:16px;margin-bottom:12px}.setting-item{padding:10px 0}.container{max-height:calc(100vh - 20px)}}@media(max-height:500px){.container{padding:16px;max-height:calc(100vh - 20px)}h1{font-size:18px;margin-bottom:6px}.nav-header{margin-bottom:10px}.profile-header{padding:12px;margin-bottom:12px}.profile-header img{width:50px;height:50px;margin-bottom:6px}.profile-header strong{font-size:16px}.settings-section{padding:12px;margin-bottom:10px}.settings-section h3{font-size:14px;margin-bottom:10px}.setting-item{padding:8px 0;font-size:12px}.danger-btn{padding:10px 16px;font-size:14px}}@media(min-width:1200px){.container{max-width:720px;padding:56px}h1{font-size:36px}.profile-header{padding:40px}.profile-header img{width:120px;height:120px}.settings-section{padding:28px}}