* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #0A0A0F 0%, #1A1A2E 35%, #16213E 70%, #0F3460 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            color: #FFFFFF;
        }

        .login-container {
            background: rgba(42, 42, 56, 0.95);
            backdrop-filter: blur(20px);
            border-radius: 24px;
            padding: 40px;
            width: 100%;
            max-width: 420px;
            box-shadow: 
                0 20px 40px rgba(0, 0, 0, 0.4),
                0 0 0 1px rgba(255, 255, 255, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
            position: relative;
            overflow: hidden;
        }

        .login-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, #00C2FF, #725EFF, transparent);
        }

        .logo-section {
            text-align: center;
            margin-bottom: 32px;
        }

        .logo {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #00C2FF, #725EFF);
            border-radius: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            box-shadow: 0 8px 32px rgba(0, 194, 255, 0.3);
            position: relative;
        }

        .logo::before {
            content: 'A';
            font-size: 28px;
            font-weight: bold;
            color: white;
            text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
        }

        .logo::after {
            content: '';
            position: absolute;
            inset: -2px;
            background: linear-gradient(45deg, #00C2FF, #725EFF, #00C2FF);
            border-radius: 18px;
            z-index: -1;
            filter: blur(8px);
            opacity: 0.7;
        }

        .brand-name {
            font-size: 28px;
            font-weight: 700;
            background: linear-gradient(135deg, #00C2FF, #725EFF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 8px;
        }

        .subtitle {
            color: #B8B8C8;
            font-size: 16px;
            font-weight: 400;
        }

        .form-group {
            margin-bottom: 24px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-size: 14px;
            font-weight: 500;
            color: #E0E0E8;
        }

        .form-input {
            width: 100%;
            padding: 16px 20px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            color: #FFFFFF;
            font-size: 16px;
            transition: all 0.3s ease;
            outline: none;
        }

        .form-input::placeholder {
            color: #888899;
        }

        .form-input:focus {
            border-color: #00C2FF;
            box-shadow: 
                0 0 0 3px rgba(0, 194, 255, 0.1),
                0 0 20px rgba(0, 194, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
        }

        .forgot-password {
            text-align: right;
            margin-bottom: 24px;
        }

        .forgot-password a {
            color: #888899;
            text-decoration: none;
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .forgot-password a:hover {
            color: #00C2FF;
            text-shadow: 0 0 8px rgba(0, 194, 255, 0.5);
        }

        .login-button {
            width: 100%;
            padding: 18px;
            background: linear-gradient(135deg, #00C2FF, #725EFF);
            border: none;
            border-radius: 12px;
            color: white;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-bottom: 32px;
            position: relative;
            overflow: hidden;
        }

        .login-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .login-button:hover {
            transform: translateY(-2px);
            box-shadow: 
                0 8px 25px rgba(0, 194, 255, 0.4),
                0 0 40px rgba(114, 94, 255, 0.3);
        }

        .login-button:hover::before {
            left: 100%;
        }

        .signup-link {
            text-align: center;
            color: #B8B8C8;
            font-size: 14px;
        }

        .signup-link a {
            color: #00C2FF;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .signup-link a:hover {
            color: #725EFF;
            text-shadow: 0 0 8px rgba(0, 194, 255, 0.5);
        }

        /* Responsive Design */
        @media (max-width: 480px) {
            .login-container {
                padding: 32px 24px;
                margin: 20px;
                border-radius: 20px;
            }

            .brand-name {
                font-size: 24px;
            }

            .form-input {
                padding: 14px 16px;
            }

            .login-button {
                padding: 16px;
            }
        }

        /* Floating particles animation */
        .particle {
            position: absolute;
            background: radial-gradient(circle, #00C2FF, transparent);
            border-radius: 50%;
            pointer-events: none;
            animation: float 6s ease-in-out infinite;
        }

        .particle:nth-child(1) {
            width: 4px;
            height: 4px;
            top: 20%;
            left: 10%;
            animation-delay: 0s;
        }

        .particle:nth-child(2) {
            width: 6px;
            height: 6px;
            top: 60%;
            right: 15%;
            animation-delay: 2s;
        }

        .particle:nth-child(3) {
            width: 3px;
            height: 3px;
            bottom: 30%;
            left: 20%;
            animation-delay: 4s;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px) scale(1); opacity: 0.7; }
            50% { transform: translateY(-20px) scale(1.1); opacity: 1; }
        }

        /* Estilos para mensagens de erro */
        .error-message {
            background: linear-gradient(135deg, #FF6B6B, #FF5252);
            color: white;
            padding: 12px 16px;
            border-radius: 8px;
            margin-bottom: 20px;
            font-size: 14px;
            font-weight: 500;
            text-align: center;
            box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .error-message::before {
            content: '⚠️ ';
            margin-right: 5px;
        }