*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Inter','Segoe UI',sans-serif;background:#f8fafc;background-attachment:fixed;color:var(--text-main);line-height:1.6;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px 0;position:relative;transition:background-color 0.3s ease,color 0.3s ease}body.light-mode{background:#fafafa;color:#1e293b}.glass{background:#ffffff;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(0,0,0,0.1);box-shadow:0 10px 40px -10px rgba(0,0,0,0.2)}.auth-container{width:100%;max-width:480px;padding:20px;position:relative;z-index:100;pointer-events:auto}.auth-card{border-radius:24px;padding:48px 40px;animation:slideUp 0.6s ease-out;margin-bottom:20px}@keyframes slideUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.auth-header{text-align:center;margin-bottom:40px}.logo-section{margin-bottom:24px}.auth-logo{width:120px;height:auto;filter:drop-shadow(0 4px 12px rgba(79,70,229,0.3));transition:filter 0.3s ease}.auth-title{font-size:32px;font-weight:800;margin-bottom:8px;background:linear-gradient(135deg,var(--primary-color) 0%,#818cf8 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.auth-subtitle{font-size:16px;color:var(--text-dim);font-weight:400}.auth-form{margin-bottom:24px}.form-group{margin-bottom:24px}.form-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:#1e293b}.form-input{width:100%;padding:14px 16px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;color:#1e293b;font-size:15px;font-family:'Inter',sans-serif;transition:all 0.3s ease}.form-input:focus{outline:none;border-color:var(--primary-color);background:rgba(255,255,255,1);box-shadow:0 0 0 3px rgba(79,70,229,0.1)}.form-input::placeholder{color:var(--text-dim)}.form-options{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;font-size:14px}.checkbox-label{display:flex;align-items:center;cursor:pointer;color:#475569}.checkbox-label input[type="checkbox"]{margin-right:8px;width:16px;height:16px;cursor:pointer;accent-color:var(--primary-color)}.forgot-link,.terms-link{color:var(--primary-color);text-decoration:none;font-weight:500;transition:color 0.2s ease}.forgot-link:hover,.terms-link:hover{color:var(--primary-hover)}.btn-submit{width:100%;padding:16px;background:linear-gradient(135deg,var(--primary-color) 0%,#818cf8 100%);color:white;border:none;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:all 0.3s ease;box-shadow:0 10px 25px -5px rgba(79,70,229,0.4);position:relative;z-index:1}.btn-submit:hover{transform:translateY(-2px);box-shadow:0 15px 30px -5px rgba(79,70,229,0.5)}.btn-submit:active{transform:translateY(0)}.divider{display:flex;align-items:center;text-align:center;margin:32px 0;color:var(--text-dim);font-size:14px}.divider::before,.divider::after{content:'';flex:1;border-bottom:1px solid rgba(148,163,184,0.3)}.divider span{background:#ffffff;padding:0 16px;color:#94a3b8;font-size:14px;font-weight:500}.social-buttons{display:flex;flex-direction:column;gap:12px}.btn-social{width:100%;padding:14px;background:#ffffff;border:1px solid #e2e8f0;border-radius:12px;color:#1e293b;font-size:15px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:12px;transition:all 0.3s ease}.btn-social:hover{background:rgba(255,255,255,1);transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,0.1)}.btn-social svg{flex-shrink:0}.auth-footer{text-align:center;padding-top:24px;border-top:1px solid rgba(148,163,184,0.3);color:var(--text-dim);font-size:14px}.toggle-link{color:var(--primary-color);text-decoration:none;font-weight:600;transition:color 0.2s ease}.toggle-link:hover{color:var(--primary-hover)}.background-animation{position:fixed;top:0;left:0;width:100%;height:100%;z-index:1;overflow:hidden;pointer-events:none}.circle{position:absolute;border-radius:50%;background:linear-gradient(135deg,rgba(79,70,229,0.1),rgba(129,140,248,0.1));animation:float 20s ease-in-out infinite}.circle-1{width:400px;height:400px;top:-200px;left:-200px;animation-delay:0s}.circle-2{width:300px;height:300px;bottom:-150px;right:-150px;animation-delay:5s}.circle-3{width:250px;height:250px;top:50%;left:50%;transform:translate(-50%,-50%);animation-delay:10s}@keyframes float{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(50px,-50px) scale(1.1)}50%{transform:translate(-30px,30px) scale(0.9)}75%{transform:translate(30px,50px) scale(1.05)}}@media (max-width:640px){body{padding:20px 0}.auth-card{padding:32px 24px}.auth-title{font-size:28px}.auth-subtitle{font-size:14px}.form-input{padding:12px 14px}.btn-submit,.btn-social{padding:14px;font-size:15px}}.btn-submit:disabled,.btn-social:disabled{opacity:0.6;cursor:not-allowed}.error-message{color:var(--error-color);font-size:13px;margin-top:6px;display:none}.form-group.error .form-input{border-color:var(--error-color)}.form-group.error .error-message{display:block}.success-message{background:rgba(16,185,129,0.1);border:1px solid rgba(16,185,129,0.3);color:var(--success-color);padding:12px 16px;border-radius:8px;margin-bottom:20px;font-size:14px;text-align:center}